Yamaha DVX-S301 Service Manual page 47

I DVR-S300 SCHEMATIC DIAGRAM
FOR INFORMATION ONLY (NO REPLACEMENT COMPONENT PARTS WILL BE AVAILABLE)
AV BOARD 4/8
A
B
C
D
E
F
G
H
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1 2 3 4
AV_VIDEO (Supply Distribution )
4401
1401
1402
T401 4402
+3V3 1
GND_D 2
+3V3 3
T402
+5VL
+5VL 4
GND_D
5
T404 +12Va
+12Va 6
Gnd_a 7
T405
-12Va
-12Va 8
T407
Standby_PSU 9
Standby_PSU 3401
T406
Power_Dn 10 PWR_DN
T403
+12VL 100R
+12VL 11
GND_D 12
B12B-EH-A
GND_A
DGND
DGND
7405
L7808CD2T
1405
1 3
+12VL +8VL
IN OUT
IN OUT
2A T
COM
2
GND
DGND
3493
+12Va
1R0
1 2 3 4
The first digit of a component indicates the component type.
1xxx : Connector
2xxx : Capacitor
5 6 7 8
+3V3_POWER
7401
5401 5402 BCP53 5403
+1V8
3486
22R
7402
BC847B
DGND
3487
68R
7404
TS431L
A K 3
5
A K
2 1
NC NC
REF
4409
DGND
7406
L78M05CDT
1 3
IN OUT +5VVID
COM
VGND
5 6 7 8
# Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
# Schematic diagram is subject to change without notice.
3xxx : Resistor 5xxx : Coil 7xxx : IC, Transistor, FET
4xxx : SMD jumper 6xxx : Diode 9xxx : Wire jumper
9 10 11 12
5404
+3V3
33u
7403
LD1117DT33
DGND
5405
3 2
+5VL +3V3_DAC
IN OUT
IN OUT
33u
COM
2410
100u
DGND
DGND
2418
100n
2420
100n
2422
100n
2417
100n
2419
100n
2421
100n
2423
100n
GND_A DGND
9 10 11 12
DVR-S300/
NX-P301/NX-P302
1401 B2
1402 B3
1405 E2
2351 C3
2401 B7
2402 B7
2403 C11
2404 C11
2405 C5
2406 C5
2407 C9
2408 D11
2409 D11
A
2410 D10
2413 E3
2414 E4
2415 G5
2417 G9
2418 F9
2419 G9
2420 F9
2421 G9
2422 G9
2423 H9
3401 B4
B
3480 D9
3481 D9
3486 C6
3487 C5
3488 C6
3490 D7
3492 D7
3493 F4
4401 B4
4402 B4
4409 D6
C
5401 B5
5402 B5
5403 B7
5404 C10
5405 C10
7401 B6
7402 C6
7403 C10
7404 C6
7405 E3
7406 F5
T401 B3
D
T402 B3
T403 C3
T404 B3
T405 B3
T406 B3
T407 B3
E
F
G
H
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