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Zenith XBV613 - DVD/VCR Combination Service Manual

Manual is about: Service Manual

Summary of XBV613 - DVD/VCR Combination

  • Page 1

    Service manual product type: vcr+dvd combi chassis: d37 + dp-10c manual series: xbv613 manual part #: 3829rgn005g model line: d product year: 2006 summary cabinet & main chassis electrical mechanism of vcr part replacement parts list 1 2 3 4 5 ................................................ ..........

  • Page 2

    Contents section 1 . . . . Summary section 2 . . . . Cabinet & main chassis section 3 . . . . Electrical section 4 . . . . Mechanism of vcr part section 5 . . . . Replacement parts list.

  • Page 3: Section 1

    Section 1 summary contents product safety servicing guidelines for video products ............. 1-3 servicing precautions .................................................................................................. 1-4 • general servicing precautions • insulation checking prodedure • electrost...

  • Page 4

    1-3 caution : do not attempt to modify this product in any way, never perform customized installations without manufac- turer’s approval. Unauthorized modifications will not only void the warranty, but may lead to your being liable for any resulting property damage or user injury. Service work shoul...

  • Page 5: Servicing Precautions

    1-4 servicing precautions caution : before servicing the vcr+dvd covered by this service data and its supplements and addends, read and fol- low the safety precautions. Note : if unforeseen cir- cumstances create conflict between the following servicing precautions and any of the safety precautions ...

  • Page 6

    1-5 service information for eeprom power on dvd logo status (no disk status) remotecontrol pause key-->1-->4-->7-->2 in order. Press number 0~9, press charater a~f (1~6 for a while) use arrow key ( f d g e ) to move to approprite position and make changes press pause key once change will be applied ...

  • Page 7: Specifications

    1-6 specifications • general power requirements 120v, 60hz power consumption 16 w dimensions (approx.) 430 x 78.5 x 265 mm (w x h x d) mass (approx.) 4.2 kg operating temperature 5˚c to 40˚c (41˚f to 104˚f) operating humidity 5 % to 90 % signal system ntsc • inputs antenna in 75 ohms (vhf/uhf/catv) ...

  • Page 8: Section 2

    2-1 section 2 cabinet & main chassis contents exploded views .....................................................................................................................2-2 1. Cabinet and main frame section .......................................................................................

  • Page 9: Exploded Views

    2-2 exploded views 1. Cabinet and main frame secation 280 a43 a44 a26 a00 a46 a47 a50 285 283 284 271 463 330 261 261 260 452 452 452 261 465 272 273 463 463 463 463 469 274 300 250 471 469 469 288 323 324 322 470 457 286 cn50 1 notes) the exclamation point within an equilateral triangle is intended...

  • Page 10

    2-3 2. Deck mechanism section [ dvd md (dp-10c) ] 015a 012a 012a 015b a26 a02 439 018 013 017 014 001 002 003 a01 020 435 015 019 012 432 030 024 025 036 a03 430 021 439 431 435 010 012 026 440 016.

  • Page 11

    2-4 3. Packing accessory section battery 808 bag 804 packing, casing 803 806 instruction assembly rf cable 810 cable ass'y rf 801 remote controller assembly 900 box 802 packing, casing 803 811 812 plug ass'y 1way plug ass'y 2way.

  • Page 12: Section 3

    3-1 3-1 section 3 electrical contents vcr part electrical adjustment procedures .......................................................3-2 electrical troubleshooting guide ..........................3-3 1. Power(smps) circuit..................................3-3 2. System/key circuit....................

  • Page 13: Vcr Part

    3-2 electrical adjustment procedures 1. Servo adjustment 1) pg adjustment • test equipment • adjustment and specification a) oscilloscope b) ntsc model : ntsc sp test tape mode play • adjustment procedure a) insert the sp test tape and play. Note - adjust the distance of x, pressing the tracking(+) ...

  • Page 14

    3-3 electrical troubleshooting guide no check or replace d102 replace d123 replace d124 replace d121 yes yes is d121 normal? Power line of main pcb is short 1. Power(smps) circuit no 5.3va replace fr101 (use the same icw) is the fr101 normal? Is r101 normal? Is bd101 normal? No no no no no no no no ...

  • Page 15

    3-4 no 33v is the vcc(33v) sup- plied to q161 emittor? Check or replace d121 is q162 base ‘h’? Check the pwr ctl “h” signal from µ-com check or replace q161 yes yes yes (5) no 33v no 5.0v_d check or replace d125 is the vcc(5.3v) sup- plied to q165 emittor? Check or replace q165 is the q162 base ‘h’?...

  • Page 16

    3-5 no motor_vcc check or replace d124 is the vcc(14v) supplied to c134? Check or replace the cap / drum no yes yes (6) no motor_vcc (to cap, drum motor ) no reg 12v is the vcc(14v) supplied to q165 collector? Yes is the vcc(14v) sup- plied to q165 base? Check or replace q165 yes yes (7) no reg 12v ...

  • Page 17

    3-6 2. System/key circuit (1) auto stop (2) the unstable loading of a cassette tape auto stop does the sw30 waveform appear at ic501 pin18? Do the t-up reel pulses appear at ic501 pin80? Is 12v applied to pmc01 pin1? Check the drum motor signal. Does 5v appear at rs501? Check the q165 power circuit....

  • Page 18

    3-7 3. Servo circuit (1) unstable video in pb mode unstable video in pb mode. Does the noise level of the screen change periodically? Do the ctl pulses appear at ic501 pin97? Is adjusting the height of the ctl head accurate? Readjust the height of the ctl head. Replace ic501. Refer to “when the y si...

  • Page 19

    3-8 does the cfg signal appear at pmc01 pin1? Does the pwm signal appear at ic501 pin77? Does 2.8v appear at pmc01 pin 9? Check the pmc01 and the capstan motor ass’y. Does the capstan pwm signal appear at ic501 pin77? Are the foil patterns and components between ic501 pin77 and pmc01 pin9 shorted? D...

  • Page 20

    3-9 key doesn’t working. Is 5v applied to ic501 pin99? Does led or fld change when a function button is pressed? Refer to “smps 5.3va trouble shooting”. Replace the defective switches. Yes no no 2. Servo circuit (4) key doesn’t working 4. Osd circuit (1) no osd display. (2) i 2 c bus check no osd or...

  • Page 21

    3-10 5. Y/c circuit (1) no video in ee mode, no video in ee mode does the video signal appear at ic302 pins1, 3? Is there sw5v at ic302 pin6? Replace ic302. Does the video signal appear at ic301 pins28, 30, 32? Is reg 5.0v applied to ic301pins23, 44, 45, 52, 68, 77? Does the video signal appear at i...

  • Page 22

    3-11 3. Y/c circuit (2) when the y(luminance) signal doesn’t appear on the screen in pb mode, is 5v applied to ic301 pins23, 44, 45, 52, 68, 77? Is the y/c bus siganl applied to ic301 pins53, 54, 55? Does the normal rf signal appear at ic301 pin14? Check the line of the sw 5v line. Check the system ...

  • Page 23

    3-12 3. Y/c circuit (3) when the c(color) signal doesn’t appear on the screen in pb mode, is sw 5v applied to ic301 pins23, 44, 45, 52, 68, 77? Does the color signal appear at ic301 pins41, 50? Check the line of the reg 5v line. (power circuit) replace x301. Check c342, c341, r333. Is the oscillatio...

  • Page 24

    3-13 3. Y/c circuit (4) when the video signal doesn’t appear on the screen in rec mode, yes yes yes yes yes yes no no yes yes yes yes yes check system part (v.H/sw) replace ic301. Check the drum *option pins72, 73, 74(sp) pins65, 66, 67(ep) rec mode check the ee mode no is ee mode normal? Is color n...

  • Page 25

    3-14 6. Hi-fi circuit (1) no sound(ee mode) yes no sound. Check the sif.In of ic801 pins57. Check the dvd audio of ic801 pins12, 74. Check the line1 audio of ic801 pins11, 73. Check the line2 audio of ic801 pins9, 71. Check the vcc of ic801 pins3, 5, 15, 32, 36, 46, 54. Yes check the iic clock and d...

  • Page 26

    3-15 3. Y/c circuit (2) hi-fi playback yes yes yes yes pb mode no sound. Check the vcc of ic801 (pins3, 5, 15, 32, 36, 46, 54). Check the hi-fi selection switch. (ic801 pin39) and the tape quality. Is the rf envelope at ic801 pin23 over 3vp-p? Yes check ic801 pin37(data), pin38(clock) yes do audio s...

  • Page 27

    3-16 (3) hi-fi rec hi-fi rec. It is impossible to record hi-fi audio signal. Check vcc of ic801. (pins3, 5, 15, 32, 36, 46, 54) yes yes check ic801 pin37(data), pin38(clock). Yes do audio signals appear at ic801 pin6? Yes do audio signals appear at ic301 pin76(normal audio)? Yes do osc signals appea...

  • Page 28

    3-17 7. Tuner/if circuit (1) no picture on the tv screen no picture on the tv screen does the video signal at the tu701 pin16. Yes yes yes is +33v applied to tu701 pin14? Yes is +5v applied to tu701 pin3? No does the video signal appear at ic501 pin 52. No does the video signal appear at jk901 yes n...

  • Page 29

    3-18 (2) no sound no sound. Check the vcc of tu701 pins3, 14. Yes check 5v, 33v line. No check the tuner sif signal at ic801 pin57. Yes check the audio of ic801 pins78, 80. Yes check the signal flow from ic801 pins78, 80 to jk901 audio out(l), (r) yes check the tuner sif of tu701 pin13. No 1. Check ...

  • Page 30

    3-19 3-20 block diagrams 1. Power(smps) block diagram bd101 t101 trans + br bl (bk)(wh) c103 ! ! ! ! ! Fuse resistor (fr101) noise filter block (c101,l102, c102) photo coupler (ic102) error amp (ic103) snubber block (d101,c105 c106,r104) drive & s/w block (ic101, d102, r105, c104, c108 , c109, c107,...

  • Page 31

    3-21 3-22 2. Tu/if block diagram a.In ch s/w reg 5v control v .In rf agc nc enable clock d ata aft a.Out sif tu 30v nc v .Out 999 gnd 100 aft 732 tu.V.Out 875 mod a.In 61 mod ctl 107 5v 26 vcr 'h' 971 mod vedio 71 iic clk 72 iic data 781 sif out 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 combi ntsc 158 ...

  • Page 32

    3-23 3-24 3. Y/c block diagram ep pb 'a' ep pb 'b' sp pb 'b' sp pb 'a' 64 59 58 57 55 54 53 65 67 72 74 acc det env det c-rot rf-sw in y/c ena y/c da t a y/c clock v.Out audio mute ha sw p p p c-lpf main conv 3.58m bpf2 acc amp acc det clamp y lpf clamp clamp in out vca ccd 3.58m bpf1 y/c mix 6db do...

  • Page 33

    3-25 3-26 4. Normal audio block diagram ic301 la71206m sif a_in rf_mod ic801 la72670m tuner tu701 10 76 det normal audio out line audio(r) in line audio(l) in rear jack a. Out (l) alc 4 6 13 1 57 9 2 71 80 78 a. Out (r) (system) ic801 la72670m ic301 la71206m amp eq amp 78 4 10 a. Out (r) mod. Out da...

  • Page 34

    3-27 3-28 5. Hi-fi block diagram a b hi-fi/ rec ic801 la72670bm a.Out to jack modulator a.Out (to tu) 24 hi-fi pb 'b' hi-fi pb 'a' hi-fi rec 57 12 74 11 73 9 71 6 4 26 27 80 a.Out 'l' a.Out 'r' 78 3 audio input block normal audio out(to avcp) normal audio in(from avcp) sif dvd a.In 'l' dvd audio dvd...

  • Page 35

    3-29 3-30 6. System block diagram gnd mode s1 mode s2 mode s3 mode s4 mode s/w to/from avcp to/from avcp t-up reel t-up end sup reel cst.Sw/rec tap 5v cs501 5.3va 5.3va es501 r550 ld501 deck ir led r553 r555 rs501 rs502 r556 r558 c582 r538 r535 r537 r536 c534 r544 c552 r5c6 c500 c517 r541 r529 r583 ...

  • Page 36

    3-31 3-32 a b c d e f g h i j k l m n o p q r s t notes) symbol denotes ac ground. Notes) symbol denotes dc chassis ground. Note) warning note) parts that are shaded are critical note) with respect to risk of fire or note) electricial shock. Circuit diagrams 1. Power(smps) circuit diagram important ...

  • Page 37

    3-33 3-34 2. Tu/if circuit diagram a 1 2 3 4 5 6 7 8 9 10 11 12 b c d e f g h i j k l m n o p q r s t.

  • Page 38

    3-35 3-36 3. A/v circuit diagram a 1 2 3 4 5 6 7 8 9 10 11 12 b c d e f g h i j k l m n o p q r s t.

  • Page 39

    3-37 3-38 4. Hi-fi circuit diagram a 1 2 3 4 5 6 7 8 9 10 11 12 b c d e f g h i j k l m n o p q r s t.

  • Page 40

    3-39 3-40 5. Jack circuit diagram a 1 2 3 4 5 6 7 8 9 10 11 12 b c d e f g h i j k l m n o p q r s t.

  • Page 41

    6. System circuit diagram a 1 2 3 4 5 6 7 8 9 10 11 12 b c d e f g h i j k l m n o p q r s t 3-41 3-42.

  • Page 42

    3-43 3-44 * ic501 waveform tek stop : 10.0ks/s 280 acqs m5.00ms ch1 ch1 3.04 v 1.00 v t t 1 tek stop : 250ks/s 299 acqs m 200 µ s ch1 ch1 3.04 v 1.00 v t t 1 tek stop : 10.0ks/s 18 acqs m 5.00ms ch1 ch1 3.04 v trigger position: 12% 1.00 v t 1 t tek stop : 10.0ks/s 27 acqs m5.00ms ch1 ch1 3.04 v 1.00...

  • Page 43

    3-45 3-46 • circuit voltage chart stop play mode pin no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 0.02 0 8 0.03 0 2.7 2.93 2.7 2.93 2.72 2.92 1.64 8.04 8.04 2.95 0.01 0 2.79 0.46 2.77 2.94 0.46 0 0 0.46 0 0 0.4...

  • Page 44

    3-47 3-48 stop play mode pin no. 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0.05 0.05 2.25 2.4 5.2 4.94 4.9 4.9 4.77 4.74 0.01 0.01 0.8 0.82 0.01 4.8 4.87 4.85 0 4.11 4.86 0 4.26 0.13 2.6 0...

  • Page 45

    3-49 3-50 printed circuit diagrams 1. Main p.C.Board (top side).

  • Page 46

    3-51 3-52 2. Main p.C.Board (bottom side).

  • Page 47

    3-53 3-54 3. Power p.C.Board location guide notes) warning notes) parts that are shaded are critical notes) with respect to risk of fire or notes) electricial shock..

  • Page 48

    3-55 3-56 4. Key p.C.Board.

  • Page 50: Dvd Part

    3-57 electrical troubleshooting guide dvd part 1. Power check flow no 3.4va. No 3.4va is 3.4va section working? Is 3.4v present at emitter of q121? Replace q121. Replace ic101. Is there a dc voltage at cathode of d105 or d107? Check fr101 no 5v is 3.4va section working? Replace q126. Is 5.6v present...

  • Page 51

    3-58 2. System operation flow no no no yes yes yes yes yes power on 1. 186 cpu initializes servo,dsp & risc registers 2. Write risc code to sdram 3. Reset risc show logo tray closed ? Tray close to closed position sled at inner side ? Sled moves to inner position 1. Judge whether have disc and disc ...

  • Page 52

    3-59 3. Test & debug flow test check the ac voltage power pcba(110v or 220v) yes switch on the power pcba yes is the dc voltage outputs ok? (5v, 3.3v, 12v, 5.6v motor) yes make sure the main pcba don't short on vccs and switch it on. Yes is 3.3v outputs normal on main pcba? Yes connect to pc rs232 c...

  • Page 53

    3-60 no no yes yes yes yes yes yes yes yes yes no no no no no no no a reset or power on. Flash memory operates properly? Show logo? Does tray move inside when it is not at closed position? B check connection lines between flash & zr336888 and the flash access time whether is suitable or not. Sdram w...

  • Page 54

    3-61 b motor driver mute pin is high? Does the sled move to inner side when it is at outter position? Do not put in disc and tray close. Optical lens has movements for searching focus? C no no yes yes yes yes yes yes check the connection line of mute signal. No is sled_s dc level higher than 1.65v? ...

  • Page 55

    3-62 c ld_dvd or ld_cd output properly? Laser turns on when reading disc? Put disc in? Disc id is correct? Does spindle rotate? D no no no no yes yes yes yes yes yes check the laser power circuit on zr36882 and connecting to power transistor. No collector voltage of power transistor is ok? Check the...

  • Page 56

    3-63 d proper signals on a,b,c,d of zr36882 focus on ok? Track on ok? Disc is play ? E no no no yes yes yes yes yes check connections between zr36882 and pick-up head. No check fe signal on zr36882 yes check the focus_s connection on zr36882 and motor driver. No check focus_s signal on zr36882 yes y...

  • Page 57

    3-64 e audio dac received correct data stream? Normal audio output when disc playback? Normal ir.Vfd & front panel key functions? Test end no no yes yes yes yes check connection between zr36882 & audio dac. No normal audio dac out? Yes check the related circuit of audio dac. No check audio filter, a...

  • Page 58

    3-65 details and waveforms on system test and debugging 1. System 27mhz clock, reset signal 1) zr36882 main clock is at 27mh(x601) fig 1-1 3.1v,27mhz 2) zr3682 reset is low active fig 1-2 reset time 3.3va pwr_ctl reset.

  • Page 59

    3-66 2. Sdram clock 1) sdram clock is at 143mhz fig 2-1 ic603 pin38 clk=143mhz,vp-p=3.3v 3. Tray open/close signal 1) tray open/close waveform fig 3-1 open open close close lm- lm+.

  • Page 60

    3-67 2) tray open waveform fig 3-2 3) tray close waveform fig 3-3 open close lm- lm+ open close lm- lm+.

  • Page 61

    3-68 4. Sled control related signal(no disc condition) fig 4-1 5. Lens control related signal(no disc condition) fig 5-1 focus_s focus+ focus- sled_s drvsb sled+ sled-.

  • Page 62

    3-69 6. Laser power control related signal(no disc condition) fig 6-1 7. Disc type judgement waveform fig 7-1(dvd) dclk = 128mhz, vp-p=2.2, vmax=2.7v fact+ fe sbad vr_cd dvd_ld cd_ld.

  • Page 63

    3-70 fig 7-2 (dvd) fig 7-3 (cd) fact+ fact+ fe fe sbad sbad.

  • Page 64

    3-71 fig 7-4 (cd) 8. Focus on waveform fig 8-1 (dvd) fe foso fact+ fact- fact+ fe sbad.

  • Page 65

    3-72 fig 8-2 (cd) 9. Spindle control waveform(no disc condition) (dvd) fig 9-1 focus fact+ spindle_s sp+ sp- fe fact-.

  • Page 66

    3-73 10. Tracking control related signal(system checking) fig 10-1 (dvd) fig 10-2 (cd) te track_s tact+ tact- te track_s tact+ tact-.

  • Page 67

    3-74 11. Rf waveform fig 11-1 12. Zr36882 audio optical and coaxial output(spdif) fig 12-1 rfo spdif.

  • Page 68

    3-75 13. Zr36882 video output waveform 1) full colorbar signal(cvbs) fig 13-1 2) y fig 13-2 jk702 pin6 jk702 pin7.

  • Page 69

    3-76 14. Audio output from audio dac 1) audio l/r fig 14-1 3) c fig 13-3 jk702 pin8 jk702 pin4,5 1khz 0db.

  • Page 70

    3-77 2) audio related signal fig 14-2 aout0 abck alrclk.

  • Page 71: Block Diagrams

    3-78 block diagrams 1. System block diagram m m disc sp indle mot o r lo a d ing mo t o r deck mechanism d v d:rf, a ,b, c,d cd: rf, a ,b ,c, d, e,f pic k up ic 604 m x 26 lv160 t fl a s h r o m y / c a c 90v~240v 50h z/60h z ope n , close 27 m h z x-t a l ic6 0 5 k s 24 c021 cs ee pro m ic402 nj m4...

  • Page 72

    3-79 ic201 am5869s motor dr iver dvd: a,b,c ,d, rf cd: a ,b ,c,d , e, f,rf mot_s p d l +/- x601 ic601 zr36882el c g mpeg / dsp/rf f o c u s_ s, t r ac k _ s, sl e d _s , sp in dle_ s, spdl_ sens +/- fact +/-, t a ct +/- s l ed +/- load +/ - 27 m h z x-t a l dvd_ld , cd_ l d , vr _cd , vr_dvd pic k s...

  • Page 73

    3-80 3. Audio & video in/out block diagram s/w ic 903 b h 78968 fs ic601 mpeg zr36882 ic 605 ee pro m ic 801 hi-fi ic3 0 1 av c p v. In a. In _ l a. In _ r v. Ou t a. O u t _ l a. O u t _ r y pb pr co a x ia l dv d_ a _ l dv d_ a _ r op t ic a l y c a. O u t _ r a. O u t _ r a. O u t _ l a. O u t _ ...

  • Page 74

    3-81 3-82 a 1 2 3 4 5 6 7 8 9 10 11 12 b c d e f g h i j k l m n o p q r s t circuit diagrams 1. System circuit diagram.

  • Page 75

    3-83 3-84 2. Servo circuit diagram a 1 2 3 4 5 6 7 8 9 10 11 12 b c d e f g h i j k l m n o p q r s t.

  • Page 76

    3-85 3-86 3. Av/jack circuit diagram a 1 2 3 4 5 6 7 8 9 10 11 12 b c d e f g h i j k l m n o p q r s t.

  • Page 78: Contents

    Deck mechanism parts locations • top view......................................................4-1 • bottom view ...............................................4-1 disassembly and assembly of deck mechanism 0 1.Disassembly of drum assembly ................4-2 0 2.Disassembly of plate top disassembly...

  • Page 79

    Deck mechanism parts locations 4-1 5 4 3 2 6 9 10 8 12 18 16 19 17 13 15 11 1 33 14 7 15 35 • top view • bottom view 21 21 24 23 22 31 32 31 32 25 34 28 27 29 20 26 30 24 1 drum assembly 3 screws a-1 t 2 plate top 2 hooks a-2 t 2 3 holder assembly cst 6 chasses a-2 t 2,3 4 gear assembly rack f/l 1 h...

  • Page 80

    4-2 disassembly and assembly of deck mechanism cap, fpc drum assembly flat cable (s1) (s1) (s1) holder fpc h1 h2 1. Disassembly of drum assembly (figure a-1) 1) separate the flat cable from the drum fpc and the capstan motor. 2) release 3 screws (s1) on the bottom side of the chassis, and separate t...

  • Page 81

    Disassembly and assembly of deck mechanism 4-3 (b) (e) (c) plate top arm assembly f/l gear assembly rack f/l opener door holder assembly cst (b') (h3) (a) (b) lever assembly s/w (h4) (e) fig. A-2 (fig. A-2-1) (fig. A-2-2) (fig. A-2-5) (fig. A-2-6) (fig. A-2-3) (fig. A-2-4).

  • Page 82

    2. Disassembly of plate top (fig. A-2-1) 1) separate the right part while leaning back the (b) part of the plate top toward the arrow direction. 2) separate the left part while leaning back the (b’) part of the plate top toward the arrow direction. (tool used: tool such as (-) driver, auger, etc wit...

  • Page 83

    Disassembly and assembly of deck mechanism 4-5 8. Motor assembly l/d (fig. A-3-1) 1) take the connector (c1) connected to the capstan motor pcb out. 2) remove a screw (s4) of the chassis (s4) and step back- ward, and disassemble it while holding it up. 9. Gear wheel (fig. A-3-2) 1) release the hook ...

  • Page 84

    4-6 disassembly and assembly of deck mechanism brake assembly t reel t spring tension arm assembly tension spring tension reel s (h7) (h8) (h6) fig. A-4 13. Brake assembly t (fig. A-4-1) 1) release the spring tension from the lever spring hook (h6). 2) disassemble the brake assembly t while holding ...

  • Page 85

    Disassembly and assembly of deck mechanism 4-7 opener lid arm assembly pinch base assembly p4 arm t/up (a) (b) (c) chassis (c) (h9) fig. A-5 16. Base assembly p4 (fig. A-5-1) 1) release the (a) part of the base assembly p4 from the embossing of chassis. 2) hold the base assembly p4 up while turning ...

  • Page 86

    4-8 disassembly and assembly of deck mechanism chassis (s6) belt capstan motor capstan washer(w1) lever f/r clutch assembly d37 (l1) (l1) suppoter capstan fig. A-6 20. Supporter, capstan (fig. A-6-1) 1) turn the supporter and capstan by 90 deg. Clockwise with a driver for disassembly. 21. Belt capst...

  • Page 87

    Disassembly and assembly of deck mechanism 4-9 gear drive washer (w2) gear cam plate slider lever tension lever spring base loading gear sector (b) (a) (h10) (w2) (l2) (h11) chassis gear cam hole(c) gear cam hole(b) gear drive hole(a) brake assembly capstan lever brack fig. A-7 24. Gear drive (fig. ...

  • Page 88: Deck Mechanism Disassembly

    4-10 deck mechanism disassembly gear assembly p3 gear assembly p2 base assembly p2 base assembly p3 (a) (b) (h14) (h12) (h13) chassis gear assembly p2 hole gear assembly p3 hole lever tension boss plate slider hole(b) base loading fig. A-8 31. Gear assembly p2 (fig. A-8-1)/ gear assembly p3 (fig. A-...

  • Page 89

    Disassembly and assembly of deck mechanism 4-11 (a) (b) (c) arm assembly idler jog base tension chassis (d) fig. A-9 34. Base tension (fig. A-9-1) 1) release the (a) part of the base tension from the embossing of chassis. 2) hold the base tension upward while turning it anti-clock- wise. 35. Arm ass...

  • Page 90: Deck Mechanism Adjustment

    Deck mechanism adjustment 4-12 • fixtures and tools for service 1. Cassette torque meter srk-vht-303(not svc part) part no:d00-d006 4. Torque gauge adaptor part no:d09-r001 5. Post height adjusting driver part no:dtl-0005 6. + type driver (ø5) 2. Alignment tape part no ntsc:dtn-0001 pal:dtn-0002 3. ...

  • Page 91: Deck Mechanism Adjustment

    Purpose of adjustment : to make tools normally operate by positioning tools accurately. Deck mechanism adjustment 4-13 1) turn the vcr on and take the tape out by pressing the eject button. 2) separate both top cover and plate top, and check both the hole (a) of gear cam and the hole (a’) of chassis...

  • Page 92: Deck Mechanism Adjustment

    Purpose of measuring : to measure and check the reel torque on the take-up part and the supply part that performs basic operation of the vcr (vcp) for smoothly forwarding the tape. Measure and check followings when the tape is not smoothly wound or the tape velocity is abnormally proceeded: 4-14 • t...

  • Page 93: Deck Mechanism Adjustment

    Adjustment procedure 1) travel the tape and check the bottom surface of the tape travels along with the guide line of the lower drum. 2) if the tape travels toward the lower part of guide line on the lower drum, turn the guide roller height adjusting screw to the left 3) if it travels to the upper p...

  • Page 94: Deck Mechanism Adjustment

    4-16 deck mechanism adjustment 8.3 fig. C-5-1 a/c head base fig. C-5-2 height adjustment screw(b) tilt adjustment screw(c) azimuth adjustment screw(a) x-value adjustment hole fig. C-5-3 a/c head tape tape 0.2~0.25mm p4 a/c head assembly purpose of adjustment : to ensure that audio and control signal...

  • Page 95: Deck Mechanism Adjustment

    Adjustment procedure 1) after releasing the auto tracking, lightly turn the fixing screw. Turn the (+) type driver (Ø 3 ~ Ø 4) on the x-dis- tance adjusting hole to the right or left. Adjust the rf envelope level to the maximum point and then fix the fix- ing screws. 2) for the 31mm head, adjust it ...

  • Page 96: Deck Mechanism Adjustment

    Checking/adjustment procedure 1) play the blank tape (empty tape) and check whether the guide roller crumbles or wrinkles the tape and adjust it if necessary. 2) check that the rf envelope output waveform is flat, and adjust the height of the guide roller while playing the standard test tape. 3) adj...

  • Page 97

    Protection, maintenance and check of video function 4-19 (3) f/e head (5) drum assembly (video head) (4) base assembly p2 (2) tension post (1) supply reel (6) base assembly p3 phenomena replace- ment checking points and cause color beat pollution of full-erase head o s/n, color faded pollution of vi...

  • Page 98

    Protection, maintenance and check of video function 4-20 2. Essential check and repair recording density of the video is far higher than the audio. Therefore video parts are very precise so as to allow only error of 1/1000mm or so in order to maintain compatibility with other videos. If one of these...

  • Page 99

    Protection, maintenance and check of video function 4-21 5-2) grease applications (1) grease application method apply grease by using a cloth swab or brush. Care must be exercised so that excess quantity should not be used. If the excessive quantity is applied, wipe it with the gauze soaked in alcoh...

  • Page 100

    Protection, maintenance and check of video function 4-22 lever, f/r, base, tension gear ay, p2 & p3 lever, f/r clutch contact part (pl-433, yellow) tension arm party hinge part (pl-433, yellow) base, tension pl-433.

  • Page 101

    Mechanism troubleshooting guide 4-23 auto rew doesn't work. Is the supply to the end sensor end sensor "h"? “h”: more than 3.5v “l”: less than 0.7v~1v is the voltage across ir led between 0.8~1.5v? Replace led. Is the vcc. Voltage of end sen- sor 5v? Check the syscon power. Replace end sensor. Check...

  • Page 102

    4-24 mechanism troubleshooting guide auto stop. (play/cue/rev) are there t/up and supply reel pulses. In play/cue/rev is the pinch roller in contact with the cap- stan shaft. Replace reel sensor. Is the output of dfg, dpg ok? Check aligment positions (page 4-14) check pinch spring. Replace drum moto...

  • Page 103

    4-25 mechanism troubleshooting guide in pb mode tape presence not sensed. Is the pinch roller attached to the capstan motor shaft? Check alignment positions (page 4-14) does the t/up reel turn? Replace the belt. Is the belt ok? Does the drum motor turn? Are there dpg, dfg pulses? Are the t/up supply...

  • Page 104

    Mechanism troubleshooting guide 4-26 cassette cannot be inserted. Does the lever assembly switch work? Is the lever assembly switch spring damaged or omitted? Does the cst in switch work normally? Replace or add the lever assembly switch spring. Is the vcc of main p.C.Board 5v? Yes yes check syscon ...

  • Page 105

    Mechanism troubleshooting guide 4-27 cassette will not load. Does the cst insert? Does the cst insert? Is the door opener assembled correctly? Replace the lid opener. Replace the f/l arm assembly. Check the power of l/d motor. Is the cassette holder assembly assembled correctly? Replace the f/l rear...

  • Page 106: Exploded Views

    4-28 exploded views 100 a21 a23 a24 032 109 a22 054a 054 115 116 110 112 113 114 103 105 102 106 107 1. Front loading mechanism section.

  • Page 107: Exploded Views

    Exploded views 4-29 008 011 031 079 017 032 024 406 031 021 028 029 026 a03 027 022 003 004 006 007 014 015 009 409 013 016 012 optional part a01 405 2. Moving mechanism section (1).

  • Page 108: Exploded Views

    Exploded views 4-30 052 517 061 056 518 052a 055 410 032 077 076 078 060 051 064 a11 a12 067 066 065 068 069 070 023 080 058 3. Moving mechanism section (2).

  • Page 110: Section

    Notes) notes) section replacement parts list model : 5 xbv613(lgeus) if you want to purchase flash memory, you must order " ic604a " warning parts that are shaded are critical with respect to risk of fire or electrical shock. Run date : 23-january-06 s al loca. No. Part no. Description specification...

  • Page 111

    S al loca. No. Part no. Description specification remarks 079 3040r-m057a base tension other - d37 100 3301r-m193a plate assembly top - d37 405 1mpc0301270 screw machine,pan head + d3.0 l3.5 swrch18a/fzw 406 1mec0302018 screw machine,pan head spr w + d3.0 l6.0 mswr3/fzy 409 1szzr-0032b screw,drawing...

  • Page 112

    S al loca. No. Part no. Description specification remarks 107 4510r-0061a lever deck/mecha stopper other - d37 nsp 004 5006r-0045a cap deck/mecha fpcb - d37c mold 008 6850r-hg18y cable,flat p=1.25 ffc ul2896(0.05x0.8) 7 015 5870r-0007a opener deck/mecha lid other - d37 022 6520d00004b head(circ) st ...

  • Page 113

    S al loca. No. Part no. Description specification remarks d121 0drgf00239a diode,rectifiers fr104e gulf tp non 400v 1a 30a alternate d123 0dr810040ba diode,rectifiers erc81-004l22 bk fuji do201ad 4 d123 0dr158220aa diode,rectifiers 1n5822 bk rectron do201ad 40v alternate d123 0drgf00210a diode,recti...

  • Page 114

    S al loca. No. Part no. Description specification remarks r172 0rd1001f608 resistor,fixed carbon film 1k ohm 1/6 w 5% ta26 r174 0rd3300f608 resistor,fixed carbon film 330 ohm 1/6 w 5% ta26 t101 6170rngw12p transformer,smps[coil] eer2828 15 pin soojung,samwha v101 656-004c varistor,drawing svc681d-10...

  • Page 115

    S al loca. No. Part no. Description specification remarks c358 0ce1054k638 capacitor,fixed electrolytic 1uf sra,ss 50v 20% fm5 tp 5 c359 0ce4754k638 capacitor,fixed electrolytic 4.7uf sra,ss 50v 20% fm5 tp 5 c366 0ce4764c638 capacitor,fixed electrolytic 47uf sra,ss 6.3v 20% fm5 tp 5 c3a1 0ce4754k638...

  • Page 116

    S al loca. No. Part no. Description specification remarks c866 0ce2254k638 capacitor,fixed electrolytic 2.2uf sra,ss 50v 20% fm5 tp 5 c871 0ce4753k638 capacitor,fixed electrolytic 4.7uf sre,se 50v 20% fm5 tappi c873 0ce2254k638 capacitor,fixed electrolytic 2.2uf sra,ss 50v 20% fm5 tp 5 c876 0ce1054k...

  • Page 117

    S al loca. No. Part no. Description specification remarks sw501 6600rrt001g switch,tact evq 213 09k matsushita 15v dc alternate sw502 556-213c switch,detector thv10912b tact dc 12 v 5-0 a v sw502 6600rrt001r switch,tact skhvbg3910-aa forward 12v dc 5 alternate sw502 6600rrt001g switch,tact evq 213 0...

  • Page 118

    S al loca. No. Part no. Description specification remarks c352 0ch1104k942 capacitor,fixed ceramic(temp.C 0.1uf 50v 80%,-20% y5v(f) 1608 c354 0ch1472k562 capacitor,fixed ceramic(temp.C 4700pf 50v 10% x7r(x) 1608 r/t c356 0ch1333k562 capacitor,fixed ceramic(temp.C 0.033uf 50v 10% x7r(x) 1608 r/ c357 ...

  • Page 119

    S al loca. No. Part no. Description specification remarks c595 0ch4120k412 capacitor,fixed ceramic(high d 12pf 50v 5% np0 1608 r/tp c596 0ch4120k412 capacitor,fixed ceramic(high d 12pf 50v 5% np0 1608 r/tp c597 0ch4681k412 capacitor,fixed ceramic(high d 680pf 50v 5% np0 1608 r/tp c598 0ch1104k942 ca...

  • Page 120

    S al loca. No. Part no. Description specification remarks c694 0ch1102k562 capacitor,fixed ceramic(temp.C 1000pf 50v 10% x7r(x) 1608 r/t c696 0ch1102k562 capacitor,fixed ceramic(temp.C 1000pf 50v 10% x7r(x) 1608 r/t c697 0ch4330k412 capacitor,fixed ceramic(high d 33pf 50v 5% np0 1608 r/tp c698 0ch11...

  • Page 121

    S al loca. No. Part no. Description specification remarks c926 0ch1104k942 capacitor,fixed ceramic(temp.C 0.1uf 50v 80%,-20% y5v(f) 1608 c996 0ch1104k942 capacitor,fixed ceramic(temp.C 0.1uf 50v 80%,-20% y5v(f) 1608 c9a1 0ch1102k512 capacitor,fixed ceramic(temp.C 1000pf 50v 10% b(5yp) 1608 r/t c9a3 ...

  • Page 122

    S al loca. No. Part no. Description specification remarks q306 0tr387509ac transistor,bipolars chip ktc3875s-gr-t1(alg) tp ke q307 0tr103009ac transistor,bipolars kra103s-t1(pc)22-22 chip tp ke q403 0tr103009ac transistor,bipolars kra103s-t1(pc)22-22 chip tp ke q404 0tr103009ac transistor,bipolars k...

  • Page 123

    S al loca. No. Part no. Description specification remarks r303 0rh2200c622 resistor,metal glazed(chip) 220 ohm 1 / 16 w 1608 5.00% d r304 0rh4702c622 resistor,metal glazed(chip) 47k ohm 1 / 16 w 1608 5.00% d r305 0rh2202c622 resistor,metal glazed(chip) 22k ohm 1 / 16 w 1608 5.00% d r306 0rh0000c622 ...

  • Page 124

    S al loca. No. Part no. Description specification remarks r509 0rh5600c622 resistor,metal glazed(chip) 560 ohm 1 / 16 w 1608 5.00% d r511 0rh1001c622 resistor,metal glazed(chip) 1k ohm 1 / 16 w 1608 5.00% d r512 0rh1001c622 resistor,metal glazed(chip) 1k ohm 1 / 16 w 1608 5.00% d r513 0rh3300c622 re...

  • Page 125

    S al loca. No. Part no. Description specification remarks r596 0rh1002c622 resistor,metal glazed(chip) 10k ohm 1 / 16 w 1608 5.00% d r597 0rh2201c622 resistor,metal glazed(chip) 2.2k ohm 1 / 16 w 1608 5.00% d r598 0rh1201c622 resistor,metal glazed(chip) 1.2k ohm 1 / 16 w 1608 5.00% d r599 0rh1001c62...

  • Page 126

    S al loca. No. Part no. Description specification remarks r661 0rh4701c622 resistor,metal glazed(chip) 4.7k ohm 1 / 16 w 1608 5.00% d r670 0rh0332c622 resistor,metal glazed(chip) 33 ohm 1 / 16 w 1608 5.00% d r671 0rh0332c622 resistor,metal glazed(chip) 33 ohm 1 / 16 w 1608 5.00% d r682 0rh4701c622 r...

  • Page 127

    S al loca. No. Part no. Description specification remarks r901 0rh0752c622 resistor,metal glazed(chip) 75 ohm 1 / 16 w 1608 5.00% d r902 0rh8202c622 resistor,metal glazed(chip) 82k ohm 1 / 16 w 1608 5.00% d r903 0rh8202c622 resistor,metal glazed(chip) 82k ohm 1 / 16 w 1608 5.00% d r904 0rh0752c622 r...

  • Page 128

    S al loca. No. Part no. Description specification remarks 431 1szzr-0062a screw,drawing + 1 d1.7 l4.5 swch18a/ni dp8 p 432 1szzr-0072a screw,drawing + 1 d1.7 l4.5 swrch18a/fzy dp8 435 1szzr-0011a screw,drawing machine 439 1szzr-0075a screw,drawing + 1 d1.7 l10.0 swrch18a/fzw dp 026 3390r-0030a tray ...