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NEC ACCUSYNC AUDIO BASE Service Manual

Other manuals for ACCUSYNC AUDIO BASE: Brochure
Manual is about: COLOR MONITOR

Summary of ACCUSYNC AUDIO BASE

  • Page 1

    Models n9902-1 color monitor service manual better service better reputation better profit /mitsubishi nec-mitsubishi electric visual systems models: multisync v920 multisync v921-1 multisync 95 accusync 90 accusync 90 m (n9902-1 series model).

  • Page 2

    ! W a r n i n g the service personnel should have the appropriate technical training knowl- edge and experience necessary to : be familiar with specialized test equipment, and be careful to follow all safety procedures associated with high voltage crt circuit designs to minimize danger to themselves...

  • Page 3: Contents

    Contents page no. Specifications ...................................................................................................... 1 controls ................................................................................................................ 2 serial number information ...............

  • Page 4

    1 specifications monitor specifications n9902 monitor notes picture tube diagonal: viewable: image size: radius: 19 inch 18 inch 1360 mm 90° deflection, 0.26 mm dot pitch crt, medium –short persistence phosphor, multi-layered anti static screen coating, semi-tint screen, invar shadow mask and opticl...

  • Page 5

    2 select reset – + controls on-screen display control buttons on the front of the monitor function as follows: select enters and exits the osd menu and decides the icon. Control − / + selects one of the controls and increases or decreases the adjustment. Reset resets the highlighted control to the f...

  • Page 6

    3 increases or decreases the curvature of the sides either to the left or right. Rotates the entire display clockwise or counterclockwise. Degauss control: eliminates the buildup of stray magnetic fields that alter the correct scan of the electron beams and affect the purity of the screen colors, fo...

  • Page 7

    Serial number label model n9902 serial no. 00001 ~ on ward (start from 00001 ~ when month is changed.) it doesn’t have meaning specially 4 serial number information refer to the serial number information shown below. Manufactured year : ( last digit ) manufactured month : january to september 1 to 9...

  • Page 8

    5 disassembly • before you disassemble the set, turn off power and pull out the power plug. • use a proper screwdriver. If you user screwdriver that does not fit, you may damage the screws. • disassembly is the opposite process of assembly. • carefully discharge the crt anode potential by grounding ...

  • Page 9

    6 adjustment specifications table of contents page (1) adjustment tools ........................................................................................................................... 7 (2) timing table ........................................................................................

  • Page 10

    Mode resolution h-sync ereq. V-sync freq h . Polarity v . Polarity 1 vga400 31.4khz 70hz - + 2 vga640*480 31.4khz 60hz - - 3 640*480(75) 37.5khz 75hz - - 4 640*480(85) 43.2khz 85hz - - 5 800*600(75) 46.8khz 75hz + + 6 mac ¢º 50k 49.7khz 75hz - - 7 800*600(85) 53.6khz 85hz + + 8 1024*768(75) 60.0khz ...

  • Page 11

    8 (5) free run adjustment (a) mode: 30khz 70hz (b) make tp6 to be short to the ground, and adjust vr306 to make the picture to the normal position. (6) h.V. Adjustment: (a) mode: 90.1khz 110hz (b) pattern: all black(brightness cut off) (c) adjustment: adjust vr302 to make the high voltage has 25.8 +...

  • Page 12

    9 (12) focus adjust: (a) adjust h.Parabola vp-p by osm h-focus control. > 53k h.Para : 90% ~ 100% 53k h.Para : 80% ~ 90% check t303 output vp-p. H.Para : 350 vp-p (max. 500 vp-p) hitachi v.Para : 190 vp-p (max. 190 vp-p) samsung v.Para : 150 vp-p (max.150 vp-p) (b) mode: 79.9khz 1280*1024(75) (c) pa...

  • Page 13

    10 (c) contrast control set to max and brightness control set to the center, adjust r.G.B. Gain standard as below 9300k x = 0.283 + 0.010 y = 0.297 + 0.010 y = 155 + 5 cd/m² 7500k x = 0.300 + 0.010 y = 0.315 + 0.010 y = 155 + 5 cd/m² 6500k x = 0.315 + 0.010 y = 0.325 + 0.010 y = 155 + 5 cd/m² (d) pa...

  • Page 14

    P re s e t m o d e n o . 1 2 3 4 5 6 v g a v g a v e s a v e s a v e s a (m a c ) s ig n a l n a m e 6 4 0 *4 0 0 6 4 0 *4 8 0 6 4 0 *4 8 0 6 4 0 *4 8 0 8 0 0 *6 0 0 8 3 2 *6 2 4 (7 5 ) (8 5 ) (7 5 ) (7 5 ) r e s o lu tio n 6 4 0 *4 0 0 6 4 0 *4 8 0 6 4 0 *4 8 0 6 4 0 *4 8 0 8 0 0 *6 0 0 8 3 2 *6 2 ...

  • Page 15

    P re s e t m o d e n o . 7 8 9 1 0 11 1 2 v e s a v e s a v e s a v e s a v e s a v e s a s ig n a l n a m e 8 0 0 *6 0 0 1 0 2 4 *7 6 8 1 2 8 0 *1 0 2 4 1 0 2 4 *7 6 8 1 2 8 0 *1 0 2 4 1 2 8 0 *1 0 2 4 (8 5 ) (7 5 ) (6 0 ) (8 5 ) (7 5 ) (8 5 ) r e s o lu tio n 8 0 0 *6 0 0 1 0 2 4 *7 6 8 1 2 8 0 *1...

  • Page 16

    P re s e t m o d e n o . 1 3 1 4 1 5 1 6 v e s a v e s a s ig n a l n a m e 1 6 0 0 *1 2 0 0 1 0 2 4 *7 6 8 f r e e h .C e n t (7 5 ) (6 0 ) r e s o lu tio n 1 6 0 0 *1 2 0 0 1 0 2 4 *7 6 8 6 4 0 *4 0 0 1 2 8 0 *1 0 2 d o t c lo c k (m h z ) 2 0 2 .5 6 5 . 0 2 5 .2 4 1 5 7 .5 fh (k h z ) 9 3 .7 5 4 ...

  • Page 17

    Monitor program disk pc signal cable fixture power cable 14 write and inspection for plug and play communication 1. C onstruction of system this system should be connected as shown below. Note: pc clock speed should be below 266mhz. Os is pc-dos. Fixture board can be connected directly to pc without...

  • Page 18

    0 1 2 3 4 5 6 7 8 9 a b c d e f 00 00 ff ff ff ff ff ff 00 38 a3 c1 5d 01 01 01 01 10 24 09 01 02 0c 25 1b 78 ea 22 28 a1 54 48 99 26 20 11 48 4c ff ff 80 31 59 45 59 61 59 71 4f 81 59 30 81 99 a9 4f d1 40 86 3d 00 c0 51 00 30 40 40 a0 40 13 00 64 0b 11 00 00 1e 00 00 00 fd 00 37 a0 1f 50 60 18 00 0...

  • Page 19

    0 1 2 3 4 5 6 7 8 9 a b c d e f 00 00 ff ff ff ff ff ff 00 38 a3 c5 5d 01 01 01 01 10 24 09 01 02 0c 25 1b 78 ea 22 28 a1 54 48 99 26 20 11 48 4c ff ff 80 31 59 45 59 61 59 71 4f 81 59 30 81 99 a9 4f d1 40 86 3d 00 c0 51 00 30 40 40 a0 40 13 00 64 0b 11 00 00 1e 00 00 00 fd 00 37 a0 1f 50 60 18 00 0...

  • Page 20

    17 trouble shooting refer to user’s manual trouble shooting section before using this chart. Table of contents page 1.No operation, power led flash ....................................................................................... 18 2.No operation, power led off ..................................

  • Page 21

    18 power led flash power sw turn off power sw turn off multimeter test q315, q312, d114, d110,d111,d112,d113 1. No operation, power led flash.

  • Page 22

    19 1. Dc p/s o/p voltage set at 17v,current set at 200ma. Positive connect to c109”+”. Negative connect to c105”-“. 2. Scope set at 10v/div, 10us/div, probe connect to q101-gate and c105”-“. Power sw turn off check f101 check q101 check u101 u101 pin6 pulse o/p power sw turn on failure r111, zd103 c...

  • Page 23

    Check horizontal frequency c114 to gnd check q312 frequency syncronize with h-sync check u301 normal operation check q101 g-s frequency syncronize with h-sync check c114, r116 d109, r115, r117 yes yes no no no 3. Video noise, unsynchronous 20

  • Page 24

    No video yes check screen control clockwise yes check u201 pin 2, 6, 11 signal level yes check u201 pin 29, 32, 35 signal level trouble in u201 clamp(pin 19) u201 12v voltage yes check u203 pin 1, 3, 5 signal level check cathode video level trouble in crt yes yes trouble in u203 r220, r240, r260 no ...

  • Page 25

    Check u301 pin 1, pin 2 h/v sync no raster check b+ trouble in mcu u701 yes yes trouble in q315,q318,t301,d320, d321,q325,q305,q306,t302 check q315 collector about 1050vp-p check g1 voltage about -45~65v trouble in g2 voltage yes yes trouble in q331, q323, q329, r394, d314, t302, c328, u701 no no ch...

  • Page 26

    Trouble in hor. Or ver. Sync check connector s701 (pin6,7), signal trouble in signal cable check u701(pin 39,40) h/v sync. Signal trouble in h/v sync line & q701, q702 check u701(pin 32,33) h/v sync. Signal check u701(pin 5) voltage 5v? Trouble in 5v line yes no yes yes yes check u701(pin 1, 2) trou...

  • Page 27

    Pincushion parabola wave check u301 pin 24 parabola trouble in u301 check c350, q332, r30v, r30w check q309, q311, no no yes yes yes 24 7. Pincushion poor.

  • Page 28

    Focus poor check t302 14pin h-dynamic parabola waveform 550vpp, v-dynamic parabola waveform 180vpp adjust t302 static focus vr and dynamic focus vr check t303 h and v parabola waveform trouble in t303, q305, r360, r32h, r331, r339, c322, c324, c320 yes yes 1. Check static focus and dynamic focus vr ...

  • Page 29

    N9902 theory of circuit operation this monitor contains the following blocks page 1.Power supply .................................................................................................................................. 27 2.Video circuit & osd ..................................................

  • Page 30

    Sw1 sw2 sw3 hf/s fh h h h l 52.0k l h h h 74.0k l l h h 83.0k l l l h 96.5k>=fh h h h h 1. Power supply (a) the filter network consists of l104, c101, c107, l101, l102, c103 and c104. The main function of this filter circuit is to eliminate the noise that is produced from monitor itself. (b) t101 is...

  • Page 31

    Input output sync sync ps cs mode state h v h v mute 1 2 1 2 3 4 on pulses pulses pulse pulse l h h depend on fh stand by no pulses pulses l l h l h l l l l suspend pulses no pulses l l h l h l l l l user pms_off no pulses no pulses l l h l l l l l l on pulses pulses pulses pulses l h h depend on fh...

  • Page 32

    Cs table by frequency cs1 cs2 cs3 cs4 fh 0 0 0 0 30k 0 0 0 0 34k 0 0 1 0 36.5k 0 1 1 0 45k 1 0 0 1 52k 1 1 0 1 62.5k 0 0 1 1 67k 1 0 1 1 74k 1 1 1 1 83k 1 1 1 1 96.5 1 1 1 1 29 (c)horizontal linearity compensation circuit: (1)the main component is that l303 is linearity coil and l302 is choke, when ...

  • Page 33

    Replacement parts list 1) multisync v920 30 l: lg, s: samsung, b: asia, c: china, r: australia. Assy code parts no description location q'ty alt remark 1 bracket(pwb)assy 12000341 bracket(pwb,a) 1 2 bracket(pwb)assy 12000351 bracket(pwb,bl) 1 3 bracket(pwb)assy 12000361 bracket(pwb,br) 1 4 bracket(p...

  • Page 34

    31 53 crt board a/i ga322715 elect 85oc/t 220u/10v m c288 1 54 crt board a/i ga310715 elect 85oc/t 100u/10v m c289 1 55 crt board a/i gb210458 ceramic y5v/t 0.1u/50v z c290 1 56 crt board a/i gf210362 mef cap box 0.01u/63v j c291 1 57 crt board a/i gf210352 mef cap box 0.01u/50v j c291 or 58 crt boa...

  • Page 35

    32 106 crt board a/i r0319116 jumper wire ai/t 17.5mm j11 1 107 crt board a/i r0319113 jumper wire ai/t 10mm j12 1 108 crt board a/i r0319112 jumper wire ai/t 7.5mm j13 1 109 crt board a/i r0319112 jumper wire ai/t 7.5mm j14 1 110 crt board a/i r0319112 jumper wire ai/t 7.5mm j15 1 111 crt board a/i...

  • Page 36

    33 159 crt board a/i fa240101 carbon 1/4w(t) 5% 100ohm r216 1 160 crt board a/i fa040102 carbon 1/8w(t) 5% 1k r217 1 161 crt board a/i fa040224 carbon 1/8w(t) 5% 220k r218 1 162 crt board a/i fa330103 carbon 1/2w(t) 5% 10k r219 1 163 crt board a/i fa040913 carbon 1/8w(t) 5% 91k r220 1 164 crt board ...

  • Page 37

    34 212 crt board a/i fa040103 carbon 1/8w(t) 5% 10k r289 1 213 crt board a/i fa040103 carbon 1/8w(t) 5% 10k r290 1 214 crt board a/i fa040151 carbon 1/8w(t) 5% 150ohm r293 1 215 crt board a/i fa040105 carbon 1/8w(t) 5% 1m r294 1 216 crt board a/i fa040562 carbon 1/8w(t) 5% 5.6k r295 1 217 crt board ...

  • Page 38

    35 265 main board a/i ga347625 elect 85oc/t 47u/16v m c151 1 266 main board a/i ga310735 elect 85oc/t 100u/25v m c154 1 267 main board a/i gf233262 mef cap box 0.0033u/63v j c155 1 268 main board a/i gf222362 mef cap box 0.022u/63v j c157 1 269 main board a/i ga322615 elect 85oc/t 22u/10v m c162 1 2...

  • Page 39

    36 318 main board a/i gb7561f3 ceramic y5p(b)/t 560p/500v c338 1 319 main board a/i gb7102h3 ceramic y5p(b)/t 1000p/1kv k c339 1 320 main board a/i gb710353 ceramic y5p(b)/t 0.01u/50v k c340 1 321 main board a/i gb710353 ceramic y5p(b)/t 0.01u/50v k c341 1 322 main board a/i gb710353 ceramic y5p(b)/...

  • Page 40

    37 371 main board a/i gf215472 mef cap box 0.15u/100v j c404 or 372 main board a/i gf247462 mef cap box 0.47u/63v j c405 1 373 main board a/i gf247452 mef cap box 0.47u/50v j c405 or 374 main board a/i gf247472 mef cap box 0.47u/100v j c405 or 375 main board a/i gb768153 ceramic y5p(b)/t 680p/50v k ...

  • Page 41

    38 424 main board a/i ejac0017 diode/t 1a 1n4936 d318 1 425 main board a/i ejac0017 diode/t 1a 1n4936 d319 1 426 main board a/i 80004031 diode/t 11dq06 d322 1 427 main board a/i ej044148 diode "t" 1n4148 d325 1 428 main board a/i eja00018 diode/t 1a uf4006 d326 1 429 main board a/i ej044148 diode "t...

  • Page 42

    39 477 main board a/i r0319113 jumper wire ai/t 10mm j133 1 478 main board a/i r0319112 jumper wire ai/t 7.5mm j134 1 479 main board a/i r0319113 jumper wire ai/t 10mm j135 1 480 main board a/i r0319112 jumper wire ai/t 7.5mm j136 1 481 main board a/i r0319112 jumper wire ai/t 7.5mm j137 1 482 main ...

  • Page 43

    40 530 main board a/i r0319112 jumper wire ai/t 7.5mm j181 1 531 main board a/i r0319112 jumper wire ai/t 7.5mm j182 1 532 main board a/i r0319112 jumper wire ai/t 7.5mm j183 1 533 main board a/i r0319114 jumper wire ai/t 12.5mm j184 1 534 main board a/i r0319113 jumper wire ai/t 10mm j185 1 535 mai...

  • Page 44

    41 583 main board a/i r0319112 jumper wire ai/t 7.5mm j61 1 584 main board a/i r0319115 jumper wire ai/t 15mm j62 1 585 main board a/i r0319115 jumper wire ai/t 15mm j63 1 586 main board a/i r0319115 jumper wire ai/t 15mm j64 1 587 main board a/i r0319115 jumper wire ai/t 15mm j65 1 588 main board a...

  • Page 45

    42 636 main board a/i 80005251 tr npn ksp44 to-92(t) q103 1 637 main board a/i 80003231 tr npn ktc945-p to-92(t) q105 or 638 main board a/i eaa09456 tr npn 2sc945p to-92(t) q105 1 639 main board a/i eaa22355 tr npn 2sc2235y to-92(t) q106 1 640 main board a/i 80003231 tr npn ktc945-p to-92(t) q107 or...

  • Page 46

    43 689 main board a/i eba07336 tr pnp 2sa733p to-92(t) q334 1 690 main board a/i 80003231 tr npn ktc945-p to-92(t) q335 or 691 main board a/i eaa09456 tr npn 2sc945p to-92(t) q335 1 692 main board a/i 80003241 tr pnp kta733 to-92(t) q336 or 693 main board a/i eba07336 tr pnp 2sa733p to-92(t) q336 1 ...

  • Page 47

    44 742 main board a/i r0319112 jumper wire ai/t 7.5mm r142 1 743 main board a/i fa240681 carbon 1/4w(t) 5% 680ohm r143 1 744 main board a/i fa040103 carbon 1/8w(t) 5% 10k r144 1 745 main board a/i fb242751 metal 1/4w(t) 1% 2.75k r145 1 746 main board a/i fb245602 metal 1/4w(t) 1% 56k r146 1 747 main...

  • Page 48

    45 795 main board a/i fa240101 carbon 1/4w(t) 5% 100ohm r31t 1 796 main board a/i fa040103 carbon 1/8w(t) 5% 10k r31u 1 797 main board a/i fa040102 carbon 1/8w(t) 5% 1k r31w 1 798 main board a/i fa040103 carbon 1/8w(t) 5% 10k r31x 1 799 main board a/i fa040472 carbon 1/8w(t) 5% 4.7k r31y 1 800 main ...

  • Page 49

    46 848 main board a/i fa040103 carbon 1/8w(t) 5% 10k r351 1 849 main board a/i fa040103 carbon 1/8w(t) 5% 10k r352 1 850 main board a/i fa040104 carbon 1/8w(t) 5% 100k r353 1 851 main board a/i fa040104 carbon 1/8w(t) 5% 100k r354 1 852 main board a/i fa040104 carbon 1/8w(t) 5% 100k r355 1 853 main ...

  • Page 50

    47 901 main board a/i fa040472 carbon 1/8w(t) 5% 4.7k r706 1 902 main board a/i fa040105 carbon 1/8w(t) 5% 1m r707 1 903 main board a/i fa040472 carbon 1/8w(t) 5% 4.7k r708 1 904 main board a/i fa040472 carbon 1/8w(t) 5% 4.7k r709 1 905 main board a/i fa040472 carbon 1/8w(t) 5% 4.7k r710 1 906 main ...

  • Page 51

    48 954 main board insert 80003801 diode bridge 600v/4a ts4b06g(tsc) bd101 or 955 main board insert 80004741 diode bridge 600v/4a d3sb60(sd) bd101 or 956 main board insert gj022405 safety x-cap 0.22u/275v m philips c101 1 957 main board insert gj022400 safety x-cap 0.22u/275v m arcotronic c101 or 958...

  • Page 52

    49 1007 main board insert 80003551 diode 200v/1.6a rg2z sanken Ås¨¤ d114 1 1008 main board insert 80003891 diode/a 3a/400v sf36g Ås¨¤ d317 1 1009 main board insert 80004171 diode dtv56f to-220 d320 1 1010 main board insert 80004521 diode dtv64f to-220 d320 or 1011 main board insert 14000041 screw(p-...

  • Page 53

    50 1060 main board insert 80005721 toshiba 2sc5411(fhe) q315 or 1061 main board insert r0311d04 screw cttwc m3.0x10 q315 1 1062 main board insert 18000381 edge saddle(t2) q315 1 1063 main board insert 80006581 wire gnd 1015 18awg l=240mm q315 1 1064 main board insert 12800261 heat sink(134*14*60) q3...

  • Page 54

    51 1113 main board insert 80005841 reply 12v 8p omi-ss-212l(oeg) rl301 1 1114 main board insert 80006131 base pin 3p(2nc) 7.5mm(l-type) s102 1 1115 main board insert r0224308 base pin 2.36 p=8/10 4p s301 1 1116 main board insert r0224315 base pin 3p+housing 3 ­± p=2.5 s601 1 1117 main board insert r...

  • Page 55

    52 1166 packing assy 15200241 label (d8,cyan) 1 r 1167 packing assy 15200251 label (d8,magenta) 1 c 1168 revolving stand assy 11000361 revolving stand assy(b) 2nd tooling or 1169 revolving stand assy 17000451 cushion sheet(14.8*14.8*t4) for 2nd base or 1170 revolving stand assy 11000251 revolving st...

  • Page 56

    2) multisync v921-1 different parts list assy code part no description location q'ty alt remark 1 bracket(pwb)assy 12000341 bracket(pwb,a) 1 2 bracket(pwb)assy 12000351 bracket(pwb,bl) 1 3 bracket(pwb)assy 12000361 bracket(pwb,br) 1 4 bracket(pwb)assy 12000371 bracket(pwb,c) 1 5 bracket(pwb)assy 120...

  • Page 57

    53 set assy 18000351 fixed cable clip(gl-140a) 1 54 set assy 80005391 single cable 1.8m d-sub(blue) 1 55 set assy 14300031 screw (pl-cpims*4*10*15bf) 3 56 set assy 18000241 cable clip(l=100) 2 57 set assy 18000261 anode clamper(spa-11g) 2 58 set assy 14600011 scerw special(5*25) 4 59 set assy 148000...

  • Page 58

    3) multisync 95 different parts list assy code part no description location q'ty alt remark 1 bracket(pwb)assy 12000341 bracket(pwb,a) 1 2 bracket(pwb)assy 12000351 bracket(pwb,bl) 1 3 bracket(pwb)assy 12000361 bracket(pwb,br) 1 4 bracket(pwb)assy 12000371 bracket(pwb,c) 1 5 bracket(pwb)assy 1200038...

  • Page 59

    53 set assy 18000351 fixed cable clip(gl-140a) 1 54 set assy 14300031 screw (pl-cpims*4*10*15bf) 3 55 set assy 18000241 cable clip(l=100) 2 56 set assy 18000261 anode clamper(spa-11g) 2 57 set assy 14600011 scerw special(5*25) 4 58 set assy 14800011 special washer(d20,m6,t2) 4 59 set assy 18000271 s...

  • Page 60

    4) accusync 90 different parts list assy code part no description location q'ty alt remark 1 bracket(pwb)assy 12000341 bracket(pwb,a) 1 2 bracket(pwb)assy 12000351 bracket(pwb,bl) 1 3 bracket(pwb)assy 12000361 bracket(pwb,br) 1 4 bracket(pwb)assy 12000371 bracket(pwb,c) 1 5 bracket(pwb)assy 12000381...

  • Page 61

    53 set assy 17000301 cushion piece (back) 1 54 set assy 18000351 fixed cable clip(gl-140a) 1 55 set assy 80005391 single cable 1.8m d-sub(blue) 1 56 set assy 18000241 cable clip(l=100) 2 57 set assy 18000261 anode clamper(spa-11g) 2 58 set assy 14300031 screw (pl-cpims*4*10*15bf) 3 59 set assy 14600...

  • Page 62

    5) accusync 90m different parts list assy code part no description location q'ty alt remark 1 audio base assy 80006011 audio signal cable cable 1 2 audio base assy 80005891 wire ul1015awg22 l150mm blue cn-ac1 1 3 audio base assy 80005901 wire ul1015awg22 l150mm brown cn-ac1 1 4 audio base assy 80005...

  • Page 63

    53 audio pcb assy fa040101 carbon 1/8w(t) 5% 100ohm r14 1 54 audio pcb assy fa040271 carbon 1/8w(t) 5% 270ohm r15 1 55 audio pcb assy fa040103 carbon 1/8w(t) 5% 10k r21 1 56 audio pcb assy fa040103 carbon 1/8w(t) 5% 10k r22 1 57 audio pcb assy fa040102 carbon 1/8w(t) 5% 1k r23 1 58 audio pcb assy fa...

  • Page 64

    106 set assy 18000361 holder,pcb 4 107 set assy 80005391 single cable 1.8m d-sub(blue) 1 108 set assy 10100951 cabinet front assy 1 109 set assy 10100812 cabinet back 1 110 set assy 11000261 revolving stand (t) 1 111 set assy 14600011 scerw special(5*25) 4 112 set assy 14800011 special washer(d20,m6...

  • Page 65

    Video output amp u203 r-out g-out b-out hv vertical amp output u401 v-dy horizontal & vertical process u301 dynamic focus q302, q303, q304 q305, q338, t303, q301, q317 brightness control q329,q323,vr304 horizontal driver & output t301, q315, q316 high voltage generator t302 g2 g4 2 h-dy video pre-am...

  • Page 66

    63 schematic 1) video board.

  • Page 67

    64 2) main board.