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  5. Service Manual

Magnavox 20MC4304/17 Service Manual

Other manuals for 20MC4304/17: Specifications

Summary of 20MC4304/17

  • Page 1

    Contents chapter sec. 1: adjustment procedures schematic diagrams and cba's exploded views mechanical and electrical parts lists sec. 2: standard maintenance mechanism alignment procedures disassembly / assembly of mechanism deck exploded views deck parts list survey of versions: published by fu-kc ...

  • Page 2: Main Section

    Main section color tv with built-in vcr/dvd player table of contents laser beam safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1 important safety precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

  • Page 3

    1-1-1 e6nlsp laser beam safety precautions this dvd player uses a pickup that emits a laser beam. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30 cm away from the pickup lens when the diode is turned on. Do not loo...

  • Page 4

    1-2-1 t1102_isp important safety precautions prior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement t...

  • Page 5

    1-2-2 t1102_isp may be called “horizontal disable” or “hold down.”) read and apply the high voltage limits and, if the chassis is so equipped, the x- radiation protection circuit specifications given on instrument labels and in the product safety & x-radiation warning note on the service data chassi...

  • Page 6

    1-2-3 t1102_isp precautions during servicing a. Parts identified by the # symbol are critical for safety. Replace only with part number specified. B. In addition to safety, other parts and assemblies are specified for conformance with regulations applying to spurious radiation. These must also be re...

  • Page 7

    1-2-4 t1102_isp safety check after servicing examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to verify comp...

  • Page 8

    1-3-1 t1102_sn standard notes for servicing circuit board indications 1. The output pin of the 3 pin regulator ics is indicated as shown. 2. For other ics, pin 1 and every fifth pin are indicated as shown. 3. The 1st pin of every male connector is indicated as shown. Instructions for connectors 1. W...

  • Page 9

    1-3-2 t1102_sn • mix of lead-free solder alloy / parts with leaded solder alloy / parts is possible but philips recommends strongly to avoid mixed solder alloy types (leaded and lead-free). If one cannot avoid or does not know whether product is lead-free, clean carefully the solder-joint from old s...

  • Page 10

    1-3-3 t1102_sn with soldering iron: 1. Using desoldering braid, remove the solder from all pins of the flat pack-ic. When you use solder flux which is applied to all pins of the flat pack-ic, you can remove it easily. (fig. S-1-3) 2. Lift each lead of the flat pack-ic upward one by one, using a shar...

  • Page 11

    1-3-4 t1102_sn 2. Installation 1. Using desoldering braid, remove the solder from the foil of each pin of the flat pack-ic on the cba so you can install a replacement flat pack-ic more easily. 2. The “ ● ” mark on the flat pack-ic indicates pin 1. (see fig. S-1-7.) be sure this mark matches the 1 on...

  • Page 12: Preparation For Servicing

    1-4-1 t1102pfs preparation for servicing how to enter the service mode caution 1: 1. Optical sensors system are used for tape start and end sensor on this equipment. Read this page carefully and prepare as described on this page before starting to service; otherwise, the unit may operate unexpectedl...

  • Page 13

    1-5-1 t1102ib operating controls and functions.

  • Page 14

    1-5-2 t1102ib.

  • Page 15

    1-5-3 t1102ib.

  • Page 16

    1-5-4 t1102ib.

  • Page 17

    1-6-1 t1102dc cabinet disassembly instructions 1. Disassembly flowchart this flowchart indicates the disassembly steps for the cabinet parts, and the cba in order to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they ...

  • Page 18

    1-6-2 t1102dc reference notes in the table caution! When removing the crt, be sure to discharge the anode lead of the crt with the crt ground wire before removing the anode cap. 1. Caution 1: discharge the anode lead of the crt with the crt ground wire before removing the anode cap. Disconnect the f...

  • Page 19

    1-6-3 t1102dc wire holder c [5] dvd main cba unit loader cover loader pcb holder [4] dvd mechanism [2] tray chassis unit (s-6) (s-5) (s-5) (s-9) (s-9) top shield (s-10) (s-10) (s-10) [8] deck assembly (s-12) (s-11) (s-13) (s-13) (s-13) [9] main cba (s-8) (s-7) (s-7) (s-7) (s-7) [6] sub cba [7] funct...

  • Page 20

    1-6-4 t1102dc [3] crt anode cap crt cba (s-4) (s-4) (s-4) (s-4) fig. D3 a dvd mechanism fig. D4 view for a short the three short lands by soldering. (either of two places.) connector.

  • Page 21

    1-6-5 t1102dc anode crt gnd dvd main cba unit fe head cylinder assembly ace head assembly capstan motor deck assembly tuner main cba sub cba crt cba to speaker to speaker cl2504a screen cl2501b cn2501 focus cn1802 cl1201 cn1602 cn1301 cn1302 cn1803 cl1402 cn1601 cl1401 cl403 cl2501a cn2571 cn1 cn2 c...

  • Page 22

    1-7-1 t1102ea electrical adjustment instructions general note: “cba” is abbreviation for “circuit board assembly.” note: electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replac...

  • Page 23

    1-7-2 t1102ea 2. Setting for contrast, color, tint, v-tint and sharp data values general 1. Enter the service mode. (see page 1-7-1.) 2. Press [picture] button on the service remote control unit. Display changes “brt,” “cnt,” “col,” “tnt,” “v-tnt,” and “shp” cyclically when [picture] button is press...

  • Page 24

    1-7-3 t1102ea 4. Setting for y dl time tv, y dl time ext, y sw lpf, black stretch off, black stretch cont and c. Angle data values 1. Enter the service mode. (see page 1-7-1.) 2. Y dl time tv adjustment: press [0] button on the service remote control unit twice to show “d-t tv” on the display. Y dl ...

  • Page 25

    1-7-4 t1102ea 5. Setting for cd-vol, dvd-brt, dvd-cnt and dvd-sharp data values 1. Enter the service mode. (see page 1-7-1.) 2. Cd-vol adjustment: press [vol o ] button on the service remote control unit once to show “cd vol” on the display. Dvd-brt adjustment: press [vol o ] button on the service r...

  • Page 26

    1-7-5 t1102ea 6. H f 0 adjustment purpose: to get correct horizontal position and size of screen image. Symptom of misadjustment: horizontal position and size of screen image may not be properly displayed. Note: r2583 --- sub cba 1. Connect frequency counter to r2583. 2. Operate the unit for at leas...

  • Page 27

    1-7-6 t1102ea 8. Setting for 7f data/slp rec/ mono data values 1. Enter the service mode. (see page 1-7-1.) 2. 7f data adjustment: press [vol p ] button on the service remote control unit once to show “7f” on the display. Slp rec adjustment: press [vol p ] button on the service remote control unit t...

  • Page 28

    1-7-7 t1102ea 10. Sub-brightness adjustment purpose: to get proper brightness. Symptom of misadjustment: if sub-brightness is incorrect, proper brightness cannot be obtained by adjusting the brightness control. Note: smpte setup level --- 7.5 ire 1. Enter the service mode. (see page 1-7-1.) then inp...

  • Page 29

    1-7-8 t1102ea 13. V. Shift adjustment purpose: to obtain correct vertical position of screen image. Symptom of misadjustment: if v. Position is incorrect, vertical position of image on the screen may not be properly displayed. 1. Enter the service mode. (see page 1-7-1.) press [9] button on the remo...

  • Page 30

    1-7-9 t1102ea the following 2 adjustments normally are not attempted in the field. They should be done only when replacing the crt then adjust as a preparation. 16. Purity adjustment purpose: to obtain pure color. Symptom of misadjustment: if color purity adjustment is incorrect, large areas of colo...

  • Page 31

    1-7-10 t1102ea adjustment points and test points sub cba main cba vr1601 +b adj tp1301 b-out r2583 h adj. Upper focus vr lower screen vr tp2501 (+b adjustment).

  • Page 32

    1-8-1 t1102int how to initialize the tv/dvd/vcr to put the program back at the factory-default, initialize the tv/dvd/vcr as the following procedure. 1. Turn the power on and press [select] button on the remote control unit to put the tv/dvd/vcr into dvd mode. 2. Press [1], [2], [3], [4], and [displ...

  • Page 33: Firmware Renewal Mode

    1-9-1 t1102fw firmware renewal mode 1. Turn the power on and press [select] button on the remote control unit to put the tv/dvd/vcr into dvd mode. Then remove the disc on the tray. (it is possible to move to f/w version up mode only when the tv/dvd/vcr is in dvd mode with the tray open.) 2. To put t...

  • Page 34: Block Diagrams

    1-10-1 t1102bls block diagrams system control / servo block diagram contr ol head cl1402 main cba sub cba rf-sw t-reel dv-sync c-sync c-sync v-env ctl(+) d1224 s-led d1204 rec d1216 dvd d1217 tv/vcr p-on+5v rec-led key0 rs1201 remote sensor key1 dvd-led tv/vcr-led reset rota d-rec-h d-rec-h rec-safe...

  • Page 35

    1-10-2 t1102blv video block diagram luminance signal process main cb a video (r)-1 head video (l)-1 head (deck assembly) v(r)-1 v-com1 v(l)-1 cl1401 9 8 7 v(l)-2 v-com2 v(r)-2 6 5 4 q1401 jk1701 video-in tp1401 v-out video agc tuner line rp fbc vxo y/c mix ccd 1h delay r p ynr/comb filter chrominanc...

  • Page 36

    1-10-3 t1102bla audio block diagram rec amp 9 8 au t o bias 11 p-on+5v p-on+5v q1871 bias osc q1872 q1873 (pb=on) q1874 (pb=on) q1875 switching d-rec off 6 5 3 eq amp sp/lp-on p r alc rear tuner fr ont ic1401 (a udio signal pr ocess) 76 4 a-pb/rec cl1402 cn1301 cn2 cn2503 3 a-com 1 ae-h 2 fe-h a udi...

  • Page 37

    1-10-4 t1102blh hi-fi audio block diagram 57 48 47 13 14 69 6 7 r-ch insel l-ch insel nor sw serial data decoder output select vco lpf l-ch bpf r-ch pnr pilot det cont stereo pll stereo filter sap filter sap det sif demod sap demod l-r demod st/sap sw matrix l-ch pnr lim dev comp sw noise vco lpf li...

  • Page 38

    1-10-5 tv process block diagram t1102blt x1301 3.58mhz tp1673 dv d -c cn1302 sa w fil ter sf1001 ic1301 (chr oma/deflection signal pr ocess) tu1001 if ag c sd a scl fsc 1 7 3 2 5 ic1201 (system contr ol/osd) v -sync h-sync osd-r osd-g osd-b 59 58 60 62 63 64 osd-blk sif t o hi-fi a udio block dia g ...

  • Page 39

    1-10-6 crt/h.V. Block diagram t1102blcrt pulse up amp thermal pr o tection 3 6 7 1 5 8 10 7 9 6 green amp blue amp q2503 q2502 q2501 h.Drive q2591 q2571 t2572 v- drive h- drive d. Y . L551 ic2551 (v -deflection contr ol) t2571 f .B .T . Anode focus screen cn2502 cn2503 sub cb a cr t cb a cl2504a r g...

  • Page 40

    1-10-7 power supply block diagram t1102blp line fil ter bridge rectifier t1601 ic1601 err or v o lt a ge det w1601 f1601 4a/125v l1601 d1603 d1606 dega ussing coil cn1601 dg1601 ps1601 ho t cold sub cb a main cb a switching q1601 q1604 q1605 q1683 q1606 q1609 q1607 q1613 q1614 q1688 q1681 q1221 q160...

  • Page 41: Block Diagrams

    1-10-8 block diagrams dvd system control / servo block diagram t1102blsd 12 11 10 d v d-remo te 13 cn1a s d ata cs 60 61 67 d v d-remo te fp-clk fp-din fp-dout 59 d vd main cb a unit drive cb a ic301 (ser v o drive) cn301 m sled motor m spindle motor ic101 (micr o contr oller) + - + - + - + - + - + ...

  • Page 42

    1-10-9 digital signal process block diagram t1102bld 149 c1 6 d1 8 a1 7 b1 5 e1 4 f1 2 d v d-ld 8 cd-ld 10 pd-moni 7 fs(+) 2 fs(-) 3 ts(+) 1 ts(-) 4 cn201 cn201 cn201 ic201 (sw) ic503 (sdram) ic101 (micr o contr oller) fs fs(+) cd/d vd fs(-) ts(+) ts(-) ts pick-up unit detect o r cd/d vd 19 q251,q25...

  • Page 43

    1-10-10 dvd audio block diagram t1102blad ic601 (a udio d/a conver ter) 15 14 cn2a 7 6 8 4 3 2 5 t o d v d system contr o l /ser v o block dia gram t o digit a l signal pr ocess block dia gram au d io serial por t serial contr o l por t 4x/8x o v ersampling digit a l fil ter /function contr o ller e...

  • Page 44

    1-11-1 t1102sc (top view) (bottom view) (bottom view) electrolytic capacitor + transistor or digital transistor npn transistor pnp transistor npn digital transistor pnp digital transistor (top view) (top view) e c b e c b e c b (top view) (top view) e c b e c b digital transistor schematic diagrams ...

  • Page 45

    1-11-2 main 1/6 schematic diagram parts location guide ref no. Position ref no. Position ref no. Position ref no. Position c1203 b-3 d1204 a-2 r1222 a-3 r1270 c-4 c1207 b-1 d1216 a-4 r1223 b-3 r1272 c-4 c1208 a-1 d1217 a-2 r1224 a-4 r1273 c-4 c1210 b-1 d1224 b-4 r1225 a-1 r1274 c-4 c1211 b-1 d1229 e...

  • Page 46

    1-11-3 main 1/6 schematic diagram t1102scm1 play mode rec mode dvd mode voltage indications for play, rec and dvd modes on the schematic diagrams are as shown below: 1 2 3 5.0 (2.5) 0 > ~ 5.0 the same voltage for play, rec & dvd modes. Indicates that the voltage is not consistent here. “ “ = smd.

  • Page 47

    1-11-4 t1102scm2 main 2/6 schematic diagram play mode rec mode dvd mode voltage indications for play, rec and dvd modes on the schematic diagrams are as shown below: 1 2 3 5.0 (2.5) 0 > ~ 5.0 the same voltage for play, rec & dvd modes. Indicates that the voltage is not consistent here. “ “ = smd.

  • Page 48

    1-11-5 main 2/6 schematic diagram parts location guide ref no. Position ref no. Position ref no. Position ref no. Position c1410 j-2 c1443 h-3 l1403 g-2 r1419 k-2 c1411 k-2 c1444 h-3 l1404 h-3 r1420 i-1 c1412 k-2 c1445 h-3 l1405 k-4 r1421 i-2 c1413 j-2 c1447 h-4 l1871 g-2 r1422 i-1 c1414 j-2 c1449 k...

  • Page 49

    Main 3/6 schematic diagram parts location guide 1-11-6 ref no. Position ref no. Position ref no. Position ref no. Position c1001 q-1 c1322 n-2 l1032 p-1 r1317 n-4 c1002 q-1 c1323 n-2 l1033 q-2 r1320 n-2 c1003 q-1 c1325 n-2 l1302 q-3 r1329 m-4 c1004 p-1 c1332 n-2 r1333 n-2 c1005 q-1 c1333 n-2 q1350 q...

  • Page 50

    1-11-7 t1102scm3 main 3/6 schematic diagram play mode rec mode dvd mode voltage indications for play, rec and dvd modes on the schematic diagrams are as shown below: 1 2 3 5.0 (2.5) 0 > ~ 5.0 the same voltage for play, rec & dvd modes. Indicates that the voltage is not consistent here. “ “ = smd.

  • Page 51

    1-11-8 t1102scm4 main 4/6 schematic diagram play mode rec mode dvd mode voltage indications for play, rec and dvd modes on the schematic diagrams are as shown below: 1 2 3 5.0 (2.5) 0 > ~ 5.0 the same voltage for play, rec & dvd modes. Indicates that the voltage is not consistent here. “ “ = smd.

  • Page 52

    Main 4/6 schematic diagram parts location guide 1-11-9 ref no. Position ref no. Position ref no. Position ref no. Position c1701 v-4 c1768 v-3 c1793 t-2 r1756 v-2 c1722 v-1 c1769 v-4 c1794 v-2 r1757 s-3 c1732 v-1 c1770 v-4 c1795 t-2 r1758 t-3 c1740 u-1 c1771 v-4 c1796 t-1 r1759 t-2 c1747 v-3 c1772 u...

  • Page 53

    Main 5/6 schematic diagram parts location guide 1-11-10 ref no. Position ref no. Position ref no. Position c1112 aa-2 cn1802 x-4 r1801 y-4 c1113 z-2 cn1803 bb-4 r1802 y-4 c1114 aa-1 r1803 aa-2 c1115 aa-2 d1811 y-1 r1808 aa-2 c1116 aa-2 d1812 z-1 r1809 y-1 c1117 z-2 d1813 z-1 r1810 y-1 c1118 z-2 r181...

  • Page 54

    1-11-11 t1102scm5 main 5/6 schematic diagram play mode rec mode dvd mode voltage indications for play, rec and dvd modes on the schematic diagrams are as shown below: 1 2 3 5.0 (2.5) 0 > ~ 5.0 the same voltage for play, rec & dvd modes. Indicates that the voltage is not consistent here. “ “ = smd.

  • Page 55

    1-11-12 t1102scm6 main 6/6 schematic diagram play mode rec mode dvd mode voltage indications for play, rec and dvd modes on the schematic diagrams are as shown below: 1 2 3 5.0 (2.5) 0 > ~ 5.0 the same voltage for play, rec & dvd modes. Indicates that the voltage is not consistent here. “ “ = smd no...

  • Page 56

    1-11-13 main 6/6 schematic diagram parts location guide ref no. Position ref no. Position ref no. Position ref no. Position c1604 dd-3 d1611 dd-2 q1604 ee-1 r1638 ee-2 c1605 cc-3 d1613 ee-4 q1605 ff-1 r1639 ff-2 c1606 dd-3 d1614 ee-3 q1606 ff-1 r1640 ff-1 c1607 dd-3 d1615 ee-2 q1607 ff-1 r1641 ff-1 ...

  • Page 57

    Main cba parts location guide 1-11-14 ref no. Position ref no. Position ref no. Position ref no. Position ref no. Position ref no. Position c1001 f-1 c1257 a-4 c1450 b-4 c1766 c-4 d1224 c-3 ic1201 b-3 c1002 g-1 c1258 b-5 c1452 c-4 c1767 d-4 d1229 c-1 ic1202 b-4 c1003 g-1 c1261 a-4 c1461 d-3 c1768 d-...

  • Page 58

    Dvd-y tp1672 wf17 dvd-c tp1673 wf18 v-out tp1401 wf5 pin 59 of ic1201 wf16 wf15 pin 58 of ic1201 tp1301 b-out +b adj vr1601 to sensor cba (start-sensor) to sensor cba (end-sensor) main cba top view because a hot chassis ground is present in the power supply circuit, an isolation transformer must be ...

  • Page 59

    Wf7 pin 49 of ic1401 pin 32 of ic1401 pin 9 of ic1401 wf8 wf4 wf2 pin 10 of ic1401 rf-sw tp1402 wf1 ctl-amp-out tp1202 wf3 dvd-audio-l tp1001 wf19 env. Jm1403 wf6 1-11-16 main cba bottom view because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. ...

  • Page 60

    T1102sccrt t1102scf function schematic diagram function schematic diagram parts location guide ref no. Position ref no. Position cn2401 a-1 sw2401 a-2 cn2801 c-1 sw2402 b-2 sw2403 b-2 r2401 a-2 sw2404 b-2 r2402 b-2 sw2405 b-2 r2403 b-2 sw2406 c-2 r2404 b-2 sw2407 c-2 r2405 b-2 sw2408 c-2 r2406 c-2 r...

  • Page 61

    Wf13 q2502 collector wf12 q2503 collector wf14 q2501 collector 1-11-18 crt cba top view crt cba bottom view bt1100f01022-b crt cba parts location guide ref no. Position ref no. Position ref no. Position ref no. Position c2504 a-2 d2501 a-2 r2502 a-1 r2515 a-1 c2505 a-1 d2502 a-2 r2503 a-1 r2516 a-1 ...

  • Page 62

    Function cba top view function cba bottom view bt1100f01022-c junction cba bottom view junction cba top view bt1100f01022 1-11-19 ref no. Position cn2401 d-1 cn2801 a-1 r2401 d-1 r2402 c-1 r2403 c-1 r2404 b-1 r2405 b-1 r2406 b-1 r2407 b-1 sw2401 d-1 sw2402 c-1 sw2403 c-1 sw2404 c-1 sw2405 b-1 sw2406...

  • Page 63

    1-11-20 t1102scsub1 sub 1/2 schematic diagram play mode rec mode dvd mode voltage indications for play, rec and dvd modes on the schematic diagrams are as shown below: 1 2 3 5.0 (2.5) 0 > ~ 5.0 the same voltage for play, rec & dvd modes. Indicates that the voltage is not consistent here..

  • Page 64

    Sub 1/2 schematic diagram parts location guide 1-11-21 ref no. Position ref no. Position ref no. Position ref no. Position c2531 c-4 d2571 b-3 r2551 a-3 r2586 e-2 c2533 d-4 d2572 d-2 r2552 b-3 r2587 d-2 c2552 b-3 d2584 e-1 r2555 e-1 r2588 e-2 c2553 b-2 d2585 e-2 r2556 b-3 r2589 b-1 c2555 a-3 d2586 e...

  • Page 65

    1-11-22 sub 2/2 schematic diagram parts location guide ref no. Position ref no. Position ref no. Position ref no. Position c2601 k-3 d2603 h-2 q2615 h-2 r2671 i-2 c2604 h-1 d2613 k-2 q2616 h-1 r2672 i-2 c2610 k-3 d2625 h-1 q2617 i-2 r2673 j-2 c2616 k-2 d2627 k-1 r2675 g-1 c2618 k-3 d2648 i-2 r2613 k...

  • Page 66

    1-11-23 sub 2/2 schematic diagram t1102scsub2 play mode rec mode dvd mode voltage indications for play, rec and dvd modes on the schematic diagrams are as shown below: 1 2 3 5.0 (2.5) 0 > ~ 5.0 the same voltage for play, rec & dvd modes. Indicates that the voltage is not consistent here..

  • Page 67

    Sub cba parts location guide ref no. Position ref no. Position ref no. Position ref no. Position ref no. Position ref no. Position ref no. Position c2531 c-1 c2618 c-4 d2597 a-2 q2592 a-2 r2563 b-3 r2598 a-2 r2684 a-4 c2533 c-1 c2625 c-4 d2598 a-2 q2610 b-4 r2564 b-3 r2599 a-2 r2685 a-4 c2552 c-2 c2...

  • Page 68

    R2583 (h f 0 adjustment) +b tp2501 j2550 gnd sub cba top view bt1100f01022-a 1-11-25.

  • Page 69

    H-drive tp2503 wf11 pin 5 cn2571 q2571 collector wf10 wf9 wf20 j2537 spdif 1-11-26 bt1100f01022-a sub cba bottom view.

  • Page 70

    1-11-27 t1102scd1 dvd main 1/3 schematic diagram 3 5.0 (2.5) play mode stop mode voltage indications for play and stop modes on the schematic diagrams are as shown below: 1 2 ~ 5.0 the same voltage for both play & stop modes. Indicates that the voltage is not consistent here. “ “ = smd 1 note: eithe...

  • Page 71

    1-11-28 t1102scd2 dvd main 2/3 schematic diagram 3 5.0 (2.5) play mode stop mode voltage indications for play and stop modes on the schematic diagrams are as shown below: 1 2 ~ 5.0 the same voltage for both play & stop modes. Indicates that the voltage is not consistent here. “ “ = smd.

  • Page 72

    1-11-29 ic101 voltage chart pin.No play stop pin.No play stop pin.No play stop pin.No play stop 1 ~ ~ 33 ~ ~ 65 ----- ----- 97 ----- ----- 2 ~ ~ 34 3.4 3.4 66 3.4 3.5 98 3.4 3.4 3 0 0 35 0 0 67 3.2 3.2 99 0.9 0.8 4 ~ ~ 36 ~ ~ 68 ----- ----- 100 0 0 5 ~ ~ 37 ~ ~ 69 3.4 3.4 101 2.4 2.4 6 3.4 3.4 38 0....

  • Page 73

    1-11-30 t1102scd3 dvd main 3/3 schematic diagram 3 5.0 (2.5) play mode stop mode voltage indications for play and stop modes on the schematic diagrams are as shown below: 1 2 ~ 5.0 the same voltage for both play & stop modes. Indicates that the voltage is not consistent here. “ “ = smd.

  • Page 74: Waveforms

    X6twf waveforms 1-12-1 wf2 wf1 wf5 wf4 wf8 wf7 wf3 wf9 wf11 wf13 wf14 wf10 wf15 wf16 wf12 wf18 wf17 wf19 wf20 spdifspdif 1v 0.1 µ secsec input: ntsc color bar signal (with 1khz audio signal) --- wf1~wf16 dvd video (power on (stop) mode) --- wf17, wf18 cd (1khz play) --- wf19, wf20 initial position: ...

  • Page 75: Wiring Diagram

    T1102wit 1-13-1 wiring diagram 1 2 5 5 cr t cb a focus screen gnd l551 d. Y . Hd vd cl2501a cl2501b main cb a sub cb a cn1302 cn2501 w1601 cn1601 1 2 3 4 5 t2571 fbt cl2504a anode 1 3 4 1 2 3 4 cl2504b cn2504 cn2571 junction cb a sp1801 speaker r-ch cl1802 full erase head cl403 fe head a u dio head ...

  • Page 76: Wiring Diagram

    Wiring diagram 1-13-2 t1102wid dvd main cba unit continue wiring diagram to cn1 cn301 3 4 tra y -in gnd sl(-) 5 6 sp(-) 7 sp(+) 8 sl(+) tray-in drive cba m sled motor m spindle motor ev+1.2v ev+1.2v ev+3.3v dvd-on+3.3v dvd-on+5v ev+9v gnd 1 2 3 4 5 6 7 gnd gnd pwrcon 8 15 9 10 11 12 cn1a pick up uni...

  • Page 77

    1-14-1 t1102ti system control timing charts mode sw: ld-sw note: ej rs: loading fwd (lm-fwd / rev “h”) rs ej: loading rev (lm-fwd / rev “l”) stop (a) = loading stop (b) = unloading note: ld-sw position detection a/d input voltage limit (calculated voltage) symbol 3.76 v ~ 4.50 v (4.12 v) ej 4.51 v ~...

  • Page 78

    1-14-2 t1102ti chart 1 18 rf-sw f-ad ( internal signal ) c-drive pb ctl 66 c-f/r still still frame advance roll compensation (drum servo) h-a-sw 15 rota at the first rise of rf-sw after a rise in f-ad signal. St t1 bl "h" "h" t2 "z" 1) sp mode 1 2 3 4 acceleration detection stop detection slow track...

  • Page 79

    1-14-3 t1102ti chart 2 18 rf-sw f-ad ( internal signal ) c-drive pb ctl 66 c-f/r still still frame advance roll compensation (drum servo) h-a-sw 15 rota at the first rise of rf-sw after a rise in f-ad signal. St t1 bl "h" "h" t2 "z" 2) lp/ep mode 1 2 3 4 acceleration detection stop detection slow tr...

  • Page 80

    1-14-4 t1102ti chart 3 +100ms(ntsc) +620ms(p al) 1. Eject (po wer off) -> cassette in (po wer on) -> st op(b) -> st op(a) -> pla y -> rs -> fs -> pla y -> still/slo w -> pla y -> st op( a) eject cass.Load st-s/ end-s "off" play rew ff play play stop /eject 0.2s 0.4s 0.2s ld-fwd stop(a) stop(a) ld-fw...

  • Page 81

    1-14-5 t1102ti chart 4 pin no . Ld-sw cl/ss ld-cont c-drive "z" on on c-f/r dr um r o t a tion p-on-h a-mute d-rec-h d-pb-h ej au rs sf sm tl fb al sb 1 82 66 31 65 44 displa y st-s "on" rec rew ff stop /eject 0.5s 1.0s 0.2s 0.2s 0.5s 0.2s 0.5s 0.5s 0.5s 0.2s 0.2s 0.2s 1.5s 2.5s short rev 1.0s 0.2s ...

  • Page 82

    1-14-6 t1102ti tray in (tl221) sled drive (tp303) disc drive (tp301) focus drive (tp304) tracking drive (tp302) 0v 3.3v 0v 1.65v 0v 0v 0v 1.65v 1.65v 1.65v tray close ~ play / play ~ tray open tray close disc rotation play disc stop tray open.

  • Page 83

    1-15-1 t1102pin ic pin function descriptions ic1201 (tv/vcr micro controller ic) “h” ≥ 4.5 v, “l” ≤ 1.0 v pin no. In/ out signal name function 1 in ld-sw loading switch input 2 out dvd-led dvd-led output 3 in p-safety 2 power supply failure detection 2 4 in st/sap-in tuner stereo/sap detector signal...

  • Page 84

    1-15-2 t1102pin 71 out scl e2prom/chroma ic tuner communication clock 72 in/ out sda e2prom/chroma ic tuner communication data 73 - nu not used 74 in c-sync c-sync input 75 - nu not used 76 out c-cont capstan motor control signal 77 out d-cont drum motor control signal 78 in p-safety 3 power supply ...

  • Page 85: Lead Identifications

    1-16-1 t1102le lead identifications e c b e c b in g out k e a c e c b 80 51 81 100 1 30 50 31 5 4 8 1 e c 60 21 40 41 20 1 80 61 r a k 1 2 3 4 1: vin 2: vo 3: gnd 4: vc 8 5 1 4 1 7 la78040a an15524a 2sa1175(f) 2sa950(o,y) 2sc1627y-tpe2 2sc2785(f) 2sc3331(t,u) 2sc3400 2sc2482 tpe6 ba1f4m-t bn1f4m-t ...

  • Page 86

    1-17-1 electrical parts list miscellaneous 9965 000 28878 dvd main cba unit 9965 000 28879 mps cba 9965 000 28880 mma cba 9965 000 28882 sensor cba mps cba unit mps cba unit consists of sub cba, crt cba, function cba and junction cba sub cba miscellaneous bc2501 9965 000 13874 bead inductors fba04ha...

  • Page 87

    Electrical parts list 1-17-2 q2592! 9965 000 05643 ! Transistor 2sc2785(f) q2592! * 9965 000 10994 ! 2sc3199-gr/ktc3199-gr q2592! * 4822 130 41306 ! 2sc1815gr q2610 9965 000 05644 transistor 2sa1175(f) q2610 * 4822 130 10462 kta1267-gr q2610 * 4822 130 11101 2sa1015gr q2611 9965 000 10994 2sc3199-gr...

  • Page 88

    Electrical parts list 1-17-3 mma cba unit mma cba unit consists of main cba and sensor cba main cba miscellaneous bc1600 9965 000 13875 bead inductors fbr07ha121tb-00 bc1605 9965 000 13874 bead inductors fba04ha600vb-00 bc1606 9965 000 13875 bead inductors fbr07ha121tb-00 bc1607 9965 000 13874 bead ...

  • Page 89

    Capacitors 1-17-4 c1619 * 9965 000 28898 elcap. 1000uf/16v m(vr/hc) c1620 9965 000 25495 electrolytic cap. 1000uf/16v m c1620 * 9965 000 28898 elcap. 1000uf/16v m(vr/hc) c1630! 9965 000 28899 ! Safety cap. 4700pf/250v kx c1643 9965 000 24154 electrolytic cap. 1000uf/6.3v m c1643 * 9965 000 25351 ele...

  • Page 90

    D1350 * 4822 130 30621 1n4148 d1351 4822 130 32778 1ss133 d1351 * 4822 130 30621 1n4148 d1353 9965 000 24180 zener diode mtzjt-779.1b d1353 * 9965 000 28908 zener diode dz-9.1bsbt265 d1419 4822 130 32778 1ss133 d1419 * 4822 130 30621 1n4148 d1420 4822 130 32778 1ss133 d1420 * 4822 130 30621 1n4148 d...

  • Page 91

    Q1402 * 4822 130 11101 2sa1015gr q1403 9965 000 05644 transistor 2sa1175(f) q1403 * 4822 130 10462 kta1267-gr q1403 * 4822 130 11101 2sa1015gr q1404 9965 000 05643 transistor 2sc2785(f) q1404 * 9965 000 10994 2sc3199-gr/ktc3199-gr q1404 * 4822 130 41306 2sc1815gr q1601! 9965 000 25510 ! Mos fet 2sk3...

  • Page 92

    1-18-1 t1102cex exploded views cabinet tb1 tb17 tb10 tl14 tl1-4 tl1-4 tl1-3 l4 l4 tl1-1 tl1-1 tl3 tl4 tl5 tb14 tl3 l1 l1 l1 a2 a3 l1 l3-2 l3-1 tl1-1 tl1-2 tl1-2 dl2 db5 db2 tb3 tb7 tb13 tb30 tl1-2 tl1-4 b5 b5 tb2 l2 b2 b2 b2 b2 b4 b4 b4 b4 b1 a1-7 a1-9 a1-8 a1-5 a1-6 a1-4 a1-3 a1-1 a1-2 b7 b6 b6 tl1...

  • Page 93

    1-18-2 t1102pex fr ont s4 s4 s1 x1 tape x9 s4 x4 x2-1 x25 x3 s3 s6 s7 s2 packing tape x2-1 packing.

  • Page 94

    1-19-1 mechanical set & accessory parts list electrical parts 9965 000 28878 dvd main cba unit 9965 000 28879 mps cba 9965 000 28880 mma cba 9965 000 28882 sensor cba dg601! 9965 000 28868 ! Degaussing coil f-054 dg601! * 9965 000 28869 ! Degaussing coil avdg186 l551! 9965 000 28870 ! Deflection yok...

  • Page 95: Deck Mechanism Section

    Deck mechanism section color tv with built-in vcr/dvd player table of contents standard maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-1 service fixture and tools . . . . . . . . . . . . . . . . . . . . . . ....

  • Page 96: Standard Maintenance

    2-1-1 n2466ftmen standard maintenance service schedule of components this maintenance chart shows you the standard of replacement and cleaning time for each part. Because those may replace depending on environment and purpose for use, use the chart for reference. Notes: 1. Clean all parts for the ta...

  • Page 97

    2-1-2 n2466ftmen cleaning cleaning of video head clean the head with a head cleaning stick or chamois cloth. Procedure 1. Remove the top cabinet. 2. Put on a glove (thin type) to avoid touching the upper and lower drum with your bare hand. 3. Put a few drops of 90% ethyl alcohol on the head cleaning...

  • Page 98: Service Fixture And Tools

    2-2-1 mk14fix_pc vfms0001h6 alignment tape back tension meter (made in usa) flat screw driver (purchase locally) post adjustment screwdriver metric thickness gauges (purchase locally) lock screw driver (purchase locally) head cleaning stick service fixture and tools.

  • Page 99

    2-3-1 mk14nma_pc mechanical alignment procedures explanation of alignment for the tape to correctly run starts on the next page. Refer to the information below on this page if a tape gets stuck, for example, in the mechanism due to some electrical trouble of the unit. Service information a. Method f...

  • Page 100

    2-3-2 mk14nma_pc 1. Tape interchangeability alignment note: to do these alignment procedures, make sure that the tracking control circuit is set to the preset position every time a tape is loaded or unloaded. (refer to page 2-3-4, procedure 1-c, step 2.) equipment required: dual trace oscilloscope v...

  • Page 101

    2-3-3 mk14nma_pc 1-a. Preliminary/final checking and alignment of tape path purpose: to make sure that the tape path is well stabilized. Symptom of misalignment: if the tape path is unstable, the tape will be damaged. Note: do not use an alignment tape for this procedure. If the unit is not correctl...

  • Page 102

    2-3-4 mk14nma_pc 5. To shift the ctl waveform, press [channel k ] or [channel l ] buttons on the unit. Then make sure that the maximum output position of pb fm envelope signal become within ± 2ms from preset position. 6. Set the tracking control circuit to the preset position by pressing [channel k ...

  • Page 103

    2-3-5 mk14nma_pc 1-d. Azimuth alignment of audio/control/ erase head purpose: to correct the azimuth alignment so that the audio/control/erase head meets tape tracks properly. Symptom of misalignment: if the position of the audio/control/erase head is not properly aligned, the audio s/n ratio or fre...

  • Page 104: Of Deck Mechanism

    2-4-1 n2466ftda disassembly/assembly procedures of deck mechanism before following the procedures described below, be sure to remove the deck assembly from the cabinet. (refer to cabinet disassembly instructions of main section.) all the following procedures, including those for adjustment and repla...

  • Page 105

    2-4-2 n2466ftda (1): follow steps in sequence. When reassembling, follow the steps in reverse order. These numbers are also used as identification (location) no. Of parts in the figures. (2): indicates the part to start disassembling with in order to disassemble the part in column (1). (3): name of ...

  • Page 106

    2-4-3 n2466ftda [14] [13] [11] [10] [12] [7] [8] [30] [40] [16] [39] [38] [42] [41] [43] [9] [34] [15] [36] [35] [29] [46] fig. Dm1 top view [32] [20] [33] [24] [25] [27] [26] [23] [28] [31] [21] [22] bottom view fig. Dm2.

  • Page 107

    2-4-4 n2466ftda [1] (s-1) (s-1) fig. Dm3 locking tab view for a first, while pushing the locking tab as shown at right, slide and pull up the right side on [2] to release pin a and pin b from the slots a. Then, remove pin c and pin d on [2] from the slots b as shown. Slot a slots b pin a slot a pin ...

  • Page 108

    2-4-5 n2466ftda desolder from bottom lead with red stripe view for a (s-2) [7] (l-14) [46] [47] a fig. Dm6 view for a desolder from bottom lead with white stripe a [8] [9] (s-4) (s-3) ldg belt [8] fig. Dm7 pin of [12] pin of [10] groove of [28] view for a when reassembling [10] and [12], confirm tha...

  • Page 109

    2-4-6 n2466ftda installation of [13] and [12] pin of [12] groove of [28] hook spring (p-3) up to [12] and [13], then install then to the specified position so that [12] will be floated slightly while holding [12] and [13]. (refer to fig. A.) fig. A [13] [12] (p-3) fig. B (top view) install pin of [1...

  • Page 110

    2-4-7 n2466ftda [20] (s-8) cap belt [20] [21] cap belt a installation position of cap belt view for a fig. Dm11 (l-6) [22] [23] (p-5) [21] (c-1) (c-2) (p-5) [28] when installing [23], install the spring (p-5) to [28] as shown in the left figure, and then install [23] while pressing the spring (p-5) ...

  • Page 111

    2-4-8 n2466ftda [24] (c-4) (s-9) [25] [27] [26] [28] (c-3) (l-8) (l-9) (l-10) fig. Dm13-1 pin of [34] pin of [31] position of mode lever when installed pin of [35] align [25] and [28] as shown. Bottom view [28] [25] [28] top view first tooth on [44] first groove on [28] installation of [25] when rea...

  • Page 112

    2-4-9 n2466ftda [43] [41] [42] (l-13) fig. Dm16 [44] [45] slide (p-9) fig. Dm17.

  • Page 113

    2-5-1 mk14napm_pc alignment procedures of mechanism the following procedures describe how to align the individual gears and levers that make up the tape loading/unloading mechanism. Since information about the state of the mechanism is provided to the system control circuit only through the mode swi...

  • Page 114: Deck Exploded Views

    2-6-1 n2466ftdex deck exploded views deck mechanism view 1 mark description floil g-684g or multemp mh-d (blue grease) slidus oil #150 b12 b492 b11 b571 b37 some ref. Numbers are not in sequence. B126 b8 b121 b426 b560 l1450 l1450 l1466 b501 chassis assembly top view (lubricating point) chassis asse...

  • Page 115

    2-6-2 n2466ftdex deck mechanism view 2 mark description floil g-684g or multemp mh-d (blue grease) slidus oil #150 sankoul fg84m (yellow grease) b508 b414 view for a (grease point) b516 b559 b52 b134 b133 b568 b565 b417 some ref. Numbers are not in sequence. Bottom side (grease point) b507 b488 b570...

  • Page 116

    2-6-3 n2466ftdex deck mechanism view 3 mark description floil g-684g or multemp mh-d (blue grease) slidus oil #150 b563 b300 b562 b482 b355 b354 b483 b425 l1321 b347 l1321 b313 l1341 b303 b555 b514 some ref. Numbers are not in sequence. B361 b359 b529 b360 b561 l1474 1 2 3 4 g h i.

  • Page 117

    2-7-1 mechanical parts list - vcr mechanism b2 9965 000 29043 cylinder assy mk12.5 ntsc 6hd b2 * 9965 000 29044 cylinder assy mk12.5 ntsc 6hd b3 9965 000 23363 loading motor assembly mk12.5 b8 9965 000 17191 pulley assembly mk12 b9 9965 000 23364 moving guide s p.P mk12.5 b10 9965 000 23365 moving g...