Sony KLV-22EX300 Service Manual page 54

KLV-22, 26, 32 EX300, 32, 40, 46 EX400
3-1-3. DDCON Sheet
START
Check JL6306 Voltage.
Is the voltage 3.3V?
yes
Check JL6309 Voltage.
Is the voltage 1.1V?
yes
Check JL6313 Voltage.
Is the voltage 1.8V?
yes
Check JL6205 Voltage.
Is the voltage 1.25V?
yes
3-1-4. Standby Led Blink
a) 3 times blinking
3 times Blinking
Check JL6315
Voltage on the
BAA Board.
5.25V?
OK
Check
Speaker Impedance
at SP Connector
OK
Check +12.5V
at pin 1 of
CN6200 on
the BAA Board
OK
RM-GA019
no
Check F6303
no
Check F6302 or F6305.
no
Check F6301.
no
Check +3.3V_Main
DC_ALERT1
NG
Check F6304.
BAA board
AUDIO
NG
Speaker
NG
G* Board
Change
BAA Board
After checking, take note of
NG condition & change BAA board
AUDIO
Check +12.5V_AU1 NG
F4001, IC4002,etc
at F4001 on
(BAA Board)
the BAA Board
OK
Motionflow
IC9000,etc
(BAA Board)
– 54 –
AZ1A: 3x Blinking For
Audio Error
Note:
G* - Power Board