SERVICE MANUAL
Contents
1. 16101 10213 iC214 16215 LAR 16218 1 i i 2 OV OV ov 17 oy 3 av ov ov 4 ov Ov 5 t5V 18V 15V t5V 15V 15V 6 0v 0v ov 0v ov 7 ov 0v OV DV 8 ov ib 0v ov 0V ov 9 15V 15V 15V 15V 15V 15V 15V 10202 10203 10204 1 1 33j PULSE PULSE i621 16322 7 27 2 34 PULSE 2 PULSE i 0V ov 1 2 35 L3 j Ru NC 41 4 3 NC EE 51 5 4 5 6 5 ov 6 7 7 6 ov 7 8 8 7 NC 8 9 8 15V 9 1 9 5V 10 15V faal 12 4V 14 ov 13 4V 145 ov 14 3V 146 ov 15 sv 47 16 5V 48 17 ov 17 5V 49 50 51 isis 16504 IC801 18V cificTi i iej 2ei sizes 1 uie o Sag si as2. 035315 E i 13 5 ze 1 ay 30m 55 Corrs i lanfe 535 je GINE es im CASSA M ES 4485 sto des Sts O es we 2x Kee O tors Ek os oz av rz TWAYON O wo zz zo 10 5 z e o 2 O y zu ul WNMIOVLS o9 o 9APCHTS Q t3 5 ex 2 lt eo ob 4 e 5 e t s THRESHOLD PORTO E i iz AL IN RENIN ore Pet t wot HO wey ms PROGRAMMABLE PROGRAM COUNTER zia 5 WO e o z i e ian 2 gt 2 u lol 3 o JZ e E o c a i oa 5 gt x 5 E OP c 5 hk IZ lt CN bs i a 1 3 N Uoc 55 eq O DOn pem Bac eo an eme eg ae a prs 2 5 22 5 5 IG 2 gt a NZa XXL H i 1 5 aa x o z eee ses 233522 Y a d MEME p S2 i re e B I NN ee M RO ES eer SN Ay rad wv 7 RH o app Eee ee m 24 36 e o L 2 E ss E Ie s 5 zo x wa oe
3. e o a a M NO E CENE ES 1 o o o Y lt c E 17 1 Schematic Diagram 2 4 OM Ra Sy b Fs a o Q654 C651 Q653 1C 804 Q604 JE Ss Q323 Q751 Q321 Q704 10202 Q702 TRANSISTORS Schematic Diagram 4 4 o 5 E ENEE a S Tc QST B pre eae s al F a i a PPO OO Ole i 9i e i e 3 A i x ec a Q o ii Su la CL x o H RENE NE la r e z oc 3 E B m9 5ij oo o fall Lun ns rl p sig X bo pu i E i e Oo e d lt i I l e oor x l a z cme eet I ic NE I x Dow 8 ec oil 4 Zu lt d uj o o e Lu ze d le a z ee a ee ea e S Jo oL aa 5 LS 4 a J X00 S99u SuB STRAIGHT gt s Att 999u f i08M o 90 zorii soad Sw o o sym 22 oc Qo i e c lt 2 xe 699 u b 2E IU T Ja A Ix ufs le a q om oe fe d i GND 4 OVER CURRENT DETECT CIRCUIT DC VOLTAGE DETECT SM CiRCUIT T C193 1998844 eS PROTECTION D 00
4. 2 2 Wo 10217 a a m m m m we we we wm wi ew eee i i as i ee Lo 1 1 r e m e w e C208 1 2 ose i 1 0 t2 ii i i i coy at mg Er R232 10K 1 8W CON NOISE SEQUENCER INTERFACE CONTROL MODIFIED B TYPE N R DECODER tC323 1 2 10203 1C322 u31 103U 7HWN9 f 9 14145 OSEX 0 1C 204 BCK WCK CO DGND gt C251 7750 C267 77 50 R268 470 4 R283 470 4 R W Cleck Generater Generator RAS Cieck pai iam Pn T 1 SS 2 Tes Oan Daaa Daaa Damas aman O amaa 0 0 9 10322 ELECTRIC s i x te Vee VOLUME AMP 3 1 t 1 i t t e 1 EX due Vh 341 e a 1 o I me N i 1 i E P ME Eae Re Xd ui f E o c i l p b I i BUFFER AMP D BUFFER AMP STEERING CIRCUIT Van Generator 004o lt CAS p03 gt a EPA SR PEST CE D1 CK OPL A y 001 2024 5 04 isto 8919 goiy CE DILCK P M M DOPL AGNO sce oii sa 291 302 669099 C7 L FRONT VARIABLE ip LINE L TRANSISTORS C U T B C U T B TO CN301 VOLUME CONTROL P C Board Schematic Diagram 3 4 Schematic Diagram 1 4 Q503 TRANSI
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7. SERVICE MANUAL Surround Sound Processor Amplifier Disassembly Instructions i j Adjustment Procedures Adjustment Locations Block Diagram MASTER VOLUME SIMULATED Dl Pao Loic zs SURROUND SELECT iia Be od E SPE center LJ AKERS fear CENTER VOLUME REAR VOLUME down down d d A Disassembly Instructions 1 Caution on Removing the Front Base You cannot remove the Front Base unless you remove the Front Panel first When you remove the Front Panel follow the procedure given below 1 Remove the four screws that fix the lower Part of the Front Panel To remove the Front Panel push the panel in the direction of arrow C as you press down Hooks A located in three places in the direction of arrow B using a minus screwdriver see Figures 1 and 2 2 Caution on Removing the Display P C Board Remove the four screws fixing the Board Remove the Display P C Board as you press Hooks D located in six places in the direction of arrow E using your fingers see Figures 3 and 4 Note Be careful when you handle Hooks A and D They may break easily 3 Caution on Removing the Volume Control P C Board To prevent cutting off the Connector F which comes out from the Volume Indicator P C Board at the rear of the Volume Control Knob disconnect the connector before removing the knob see Figure 5 Volume Control Knob V
8. STORS a JK501 SERIAL j M IN O oy n PET 7 asse AEM OUT Q506 j2 RN1204 n AL IN 5 d SERIAL OUT F PY m SYNC 1 i I 2801815 MONITOR QUT R540 a T 8524 C514 75 330 16 JK503 BUS LINE st 55 22 i n Vi REGULATER 470 Q 1 OUTPUT INPUT 3 N x 1K504 BUS LINE 3 n m e S 9 SS 8542 i S 470 502 TO FW202 Oo pa p C813 47 25 30 i SEE l aM 100K mc Net eee 4 cjowo d VIDEO AMP AMP SU MAIN P C Board OUTPUT INPUT COMMON D504 184002 Ewei Ass 650 TO cNso1 IL 1 1 4w 943234 TRANSFORMER e 5 T P C Board Me vee TRY T Q9 9 R543 COMMAND i R P0S RESISTER CONTROL 0505 in 2501041 SCREEN TV SCREEN m DISPLAY 10502 NJM2229S o ol me 5502 4 CSBS503F2 C516 one E 50 iit yo io o ssa R526 C515 C 068 L501 cw P i m o on of 18 H of a o 5 w o o o o 56 La 0 nn ee ee a e a i u iim a a n
9. olume Indicator P C Board V 4 Front Base Volume Contro P C Board Connector F Figuer 5 Volume Contro P C Board Display P C Board Figuer 1 c3 Driver Front Panel Front Base Figuer 2 Power Switch Volume Control P C Board P C Board Hooks D i E Rear Volume A Display B Switch P C Board P C Board Input Volume Speaker Switch Control P C Board P C Board Figuer 3 Hook D E f v Display P C Board Front Base Figuer 4 mA Adjustment Procedures 1 Idling Adjustment 1 Connection A B or een Set Multi Meter Figure 6 2 Control Settings Volume Control Minimum Power Switch 20 00 0 00 0 2 ON Others ERNIE Socata teeta OFF 3 Adjustment Procedures Description Connection Adjust Points Test Point Remarks VR601 TP601 603 REAR L REAR L Power switch on and wait Idling Figure 6 VR602 TP602 604 5 minutes for warming Adjustment REAR R REAR R up Adjust to 5 7 VR701 TP701 702 CENTER CENTER Es F 114 F 114 Adjustment Locations VR601 R719 VR602 R638 5 R637 vR701 TP701 TP602 TP603 IC802 205 801 oe 10217 1 C320 IC804 IC803 IC216 CIJI C3 D 1C208 IC211 IC212 IC213 IC206 1C209 IC210 IC201 B SURROUND MAIN P C Board Top View
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