RB1G
CHASSIS
W900A/904A/905A
Troubleshooting
3-2-3. LED BLINKING 3x (Audio Error) – BKE and BKX board only (Not applicable for this model)
Size
B* Board Type
G* Board
Type
OTHERS
JP
OTHERS
JP
40”
BA2-S BA2-W
G1A
46”
BA2-S BA2-W
G1A
55”
BA2-S
BA2-W
G1B
F4601,IC4601
,etc
(B* Board)
#2
IC4601
,etc
(B* Board)
#3
Check 19.5V
(at fuse F4601)
to GND
Replace
F4601
High
enough
Check the
IC4601
Out pin 38, 42, 43, 47
Switching 0V to
19
V
No
Check the IC4601
pin 18
(at CL4606)
is HIGH?
No
impedance
Low impedance
IC4601 or parts around IC4601 NG
around 300-400kHz
Yes
Yes
Solder NG
IC4601
Check broken parts
IC4601 or parts around IC4601 NG
Check the CN4601
DC level ~
9.7
V
No
L4601-L4604
or
C4611-C4614
No
burn or broken ?
Yes
around
IC4601
(at JL4621~JL4624)
C 6
C 6
NG
Yes
Check the IC4601
I2S line pin
NG
Replace
IC4601
I2S line pin
4, 12, 15, 16
(at
CL4601~CL4604)
IC9000 NG
OK
Note:
50
IC4601 NG
(AYU2) – IC9000
(Brownie)- IC9001
Summary of Contents for BRAVIA KDL-55W900A
Page 2: ...SERVICE MANUAL COMMON SERVICE MANUAL COMMON RB1G CHASSIS Segment HG LCD TV LCD TV ...
Page 118: ...RB1G CHASSIS W900A 904A 905A Troubleshooting 3 4 RB1 Analog Signal Path 118 ...
Page 149: ...RB1G CHASSIS W900A 904A 905A Troubleshooting Troubleshooting Reference BA2S SIDE B IC2201 149 ...
Page 159: ...RB1G CHASSIS W900A 904A 905A Troubleshooting Troubleshooting Reference BA2S SIDE B IC2201 159 ...
Page 232: ...RB1G CHASSIS W900A 904A 905A 5 2 Block Diagram Diagrams g 5 2 1 EUROPE 232 ...
Page 233: ...RB1G CHASSIS W900A 904A 905A 5 2 Block Diagram Diagrams 5 2 Block Diagram 5 2 2 JAPAN 233 ...
Page 234: ...RB1G CHASSIS W900A 904A 905A 5 2 Block Diagram Diagrams g 5 2 3 UC 234 ...
Page 236: ...RB1G CHASSIS W900A 904A 905A 5 2 Block Diagram Diagrams 5 2 Block Diagram 5 2 5 CHINA HK 236 ...
Page 237: ...RB1G CHASSIS W900A 904A 905A 5 2 Bl k Di Diagrams 5 2 Block Diagram 5 2 6 TAIWAN COL 237 ...
Page 238: ...RB1G CHASSIS W900A 904A 905A 2 Diagrams 5 2 Block Diagram 5 2 7 PAN ASIA 238 ...