Sony RB1G Service Manual page 313

Troubleshooting
3-3-2. No Sound : Audio (Additional : For Europe models only)
#1
#1
Check the SCART
(use Digital RF
Tuner input)
NG
Check the IC4511
pin 3
VCC 3.3V
OK
Check the
IC4511 pin 6
VEE-3.3V
OK
OK
No Problem
DC/DC converter is NG
NG
See to section "3-1-2. No
POWER: Ayu2/Ayu2L Control
Check the solder
NG
Of IC4511 CP & CN
(4&5pin) & C4511
OK
Solder NG
IC4511 NG
Check the
CNT pin7 (IC4511)
is HIGH?
OK
INR & INL
pin10 &1 (IC4511)
(at CL4512 and CL4511)
Signal is coming?
OK
IC4511 NG
NG
W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/
W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A
NO
This is MUTE situation.
Check IC9000
No signal
IC9001 is NG
Size
OTHERS
24" BLX
Note:
32" BKX/BLX
(AYU2/Ayu2L) –
42" BKX/BLX
IC9000
(Brownie)- IC9001
50" BLX
RB1G CHASSIS
B* Board Type
(Segment: LW)
EUROPE JP
BLE BLJ
BKE/BLE BKJ/BLJ
BKE/BLE BKJ/BLJ
BLE -
313