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SCHEMATIC DIAGRAM-18 VIDEO CIRCUIT
R372 1K C358 330P C362 50V4.7 R375 <0V> 100K R386 1K R383 1K
<-15.73V>
: +B SIGNAL LINE : -B SIGNAL LINE
: MAIN SIGNAL LINE
R398 8.2K C375 0.1
PRE-OUT
L CH SURR BACK R CH JK351 C331 330P R341 1K
<0V>
Q352
R343 1K
C332 50V4.7 R342 <0V> 100K
R344 1K
<-15.73V>
Q351-353
SUBWOOFER JK352 R366 1K C351 330P
<0V>
2SD1915FTA
MUTING SWITCH
<14.12V>
Q353
R388 1K R395 10K
<0V>
<0V>
R367 100K
8
7
6
<0V>
C360 50V4.7
C373 25V47
5 C336 0.1
<0V>
R379 1K
<-15.13V>
IC356 C0ABBB000125
INPUT BUFFER R385 8.2K 1
<0V>
<0V>
Q351
C366 0.1
C335 0.1 2
<0V>
3
<0V>
4
<-16V>
IC351 C1AA00000647
VIDEO SELECTOR GND Vin1 Vin2 VOUT Ctrl A Ctrl B VCC Vin3 Vin4 R373 22 C365 16V100 D355 MTZJ12CTA
1
<6.95V>
2
<0V>
3
<0V>
4
<0V>
5
<0V>
6
<3.14V>
7
<12.67V>
8
<3.14V>
9
<3.14V> <3.14V>
R363 75 Y TV MON OUT R364 75 CB R365 75 CR
C364 C367
6.3V1000 C368 0.1 6.3V1000
COMPONENT VIDEO
C369
6.3V1000
Y DVD IN CB CR Y
C395 R351 75 R352 75 R353 75 R354 75 C396
16V47 16V47 VOUT Ctrl A
IC352 C1AA00000647
VIDEO SELECTOR GND Vin1 Vin2 Ctrl B VCC Vin3 8
<3.14V>
C397
16V47
1
<7.11V>
2
<0V>
3
<0V>
4
<3.14V>
5
<0V>
6
<3.14V>
7
<12.72V>
C398 C399 C400
16V47 16V47 16V47
TV IN
CB R355 75 CR JK353 R356 75
C401 0.1
Vin4 9
IC353 C1AA00000647
VIDEO SELECTOR GND Vin1 Vin2 VOUT Ctrl A Ctrl B VCC Vin3 Vin4
R411 1K
R396 1K
1
<7.24V>
2
<0V>
3
<0V>
4
<3.14V>
5
<0V>
6
<3.14V>
7
<12.76V>
8
<3.14V>
9
<3.14V>
C359 0.1
SCHEMATIC DIAGRAM-19 VIDEO CIRCUIT
: +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE
+14V +14V -14V -14V AGND AGND SB_R C374 25V47 C376 470P R402 10K R410 10K SW_OUT SB_L AF_MUTE SW_MUTE
18 17 16 15 14 13 12 11 10 9 8 7
R399 3.3K
<14.0V> <0V> <0V> <0V>
TO MAIN CIRCUIT (CN301B) ON SCHEMATIC DIAGRAM-10
V_D V_C C386 25V10 C388 0.01 V_B V_A VGND VGND C381 25V10 C387 0.01
6 5 4 3 2 1
8 R397 10K
7
6
5
IC354 C0ABBB000125
INPUT BUFFER R345 10K 1
<0V>
CN301A
2
<0V>
3
<0V>
4
<-16.0V>
C337 25V47
R346 3.3K C338 470P
R347 10K
R348 10K
C390 R414 10K
25V47
R393 680K
V_D V_C V_B Q355 R404 22 R405 1.8K
7 6 5 4 3 2 1
2SC3940ARA
REGULATOR
Q355 <5.07V> <12.31V>
<5.69V>
V_A +5V
C382 0.01 D352 D351 B0BA5R600016 B0BA5R600016
-5V
TO S-VIDEO CIRCUIT (W351) ON SCHEMATIC DIAGRAM-16
W351
C393 6.3V100
C371 0.1
<5.08V> <4.41V> <0V> <0V> <0V> <0V> <0V> <0V>
C378 6.3V100
C383 6.3V100
<-5.68V>
15 14 13 16 +V 02 S1 IN1
12 11 10 9 GND 03 S2 IN2
C379 6.3V100
C384 6.3V100 R407 1.8K C385 0.01 R408 22 C392 16V47 R415 10K VGND VGND FRT_VCR R418 47K
3 2 1
IC355
C1AB00001588
VIDEO SELECTOR
IC355
01 1
<0V>
Q356 REGULATOR
2SA1534ALA Q356
S5 IN5 S3 IN4 S4 IN3 4 5 3 6 7 2
<4.08V> <0V> <0V> <0V> <0V> <0V>
<-14.39V>
TO VCR (CN351) ON SCHEMATIC DIAGRAM-17
CP351
<-5.15V>
-V 8
<-5.14V>
R409 R412 D353,354 B0AACK000004 R406 1K
1K 1K D353 D354
C352 16V47 R368 10K C370 47P C353 16V47 R360 75 R357 75
DVD/ DVD 7CH IN TV MONITOR OUT JK354 TV IN
C380 0.1
C394 6.3V100
R392 75
COMPOSITE VIDEO
R413 R417
1K 1K R361 75
R369 10K C356 47P C355 R381 75
VCR1 OUT JK355 VCR1 IN VCR2 DVD RAM OUT VCR2 DVD RAM IN JK356
16V47 R362 75
R370 10K
C361 47P C354 16V47 R359 10K R358 75