Sony RB1G Service Manual page 167

Troubleshooting
3-5. No Picture
3-5-9. NO PICTURE: @ Tuner AEP-S2 / AEP-T2C2S2 (SAT part)
Confirm ANT connection
No Picture
of SAT
OK
Sound is normal ?
NG
Connect ANT Cable
Confirm BER of digital RF
correctly
By Service mode
Confirm Power supply
DDEM1.2V / DDEM2.5V/DDEM3.3V
Confirm IC2031 control line
I2CB_SCL / I2CB_SDA
SAT_RESET / SAT_OSC_EN
OK
Confirm RF Level and AGC
of Digital RF by Service mode
AGC = Low
Check IC2031
Check IC9001(Brownie)/
IC9001(Ayu2)
Yes
No sound
Error free
Check Brownie and
M't condition in TS line
NG
NG
Check Power supply
for IC2031
circuit
A2.5V
OK
NG
Check M't condition
for control line
AGC = high
Check M't condition
SAT RF input circuit
Luxor
W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/
W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A
Size B* Board Type
(Segment: LW)
OTHERS
Note:
32" BKX
(AYU2) – IC9000
(Brownie)- IC9001 42" BKX
RB1G CHASSIS
EUROPE JP
BKE BKJ
BKE BKJ
167