Sony KDL-46CX525 Service Manual ▷ View online
KDL-46CX525 28
SECTION 5 - FLOW CHARTS AND DIAGRAMS
NO POWER
No Power
Check STBY 3.3V
at 10 pin of CN6001
on the B* Board
Harness
G* Board
Replace Harness
Between G* Board and
B* Board
B* Board
NG
OK
NG
OK
FIGURE 5-2. NO POWER
KDL-46CX525 29
SECTION 5 - FLOW CHARTS AND DIAGRAMS
STANDBY LED BLINKING
2X Blink
Check REG12V at
pins 2/3 of
CN6001 on
the B* Board
B* Board
Harness
G* Board
Replace Harness
between G* Board and
B* Board
12V NG
12V OK
NG
OK
FIGURE 5-3. 2 BLINK ERROR
KDL-46CX525 30
SECTION 5 - FLOW CHARTS AND DIAGRAMS
3 X Blink
Check D+1.2V at
JL6007
on the B* Board
F6001,IC6005,etc
(B* Board)
Speaker
Check +3.3V_MAIN
at JL9234 on
the B* Board
Check
Speaker Connector
F6003,IC6003,etc
(B* Board)
Check AUDIO+12.5V
at pin 8/9 of
CN6001 on
the B* Board
G* Board
Check +12.5V
at F4601 on
the B* Board
F4601,IC4601,etc
(B* Board)
IC4601,etc
(B* Board)
DC_ALERT
NG
OK
AUDIO
AUDIO
FE/BE Communication
NG
OK
NG
OK
NG
OK
NG
OK
FIGURE 5-4. 3 BLINK ERROR
KDL-46CX525 31
SECTION 5 - FLOW CHARTS AND DIAGRAMS
5X Blink
Check
LCD PANEL_VCC
at pin 1 of
CN6001 on
on the B* Board
G* Board
Replace the
Harness
between G* and
LCD PANEL
(a)
Replace
the LVDS Connector
LCD PANEL (TCON)
change
B* Board
Harness
LVDS Connector
TCON (LCD PANEL)
(a) exclude 60Hz LCD PANEL Model
12V NG
12V OK
NG
Symptom
improvement
Symptom
improvement
Symptom
improvement
NG
NG
FIGURE 5-5. 5 BLINK ERROR
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