Sony Bravia KDL-55W790B, Руководство по обслуживанию

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Chassis: RB2G, HE-L
Chassis: RB2G, HE-L 39
2.2-2 - LED BLINKING: 3X(AUDIO ERROR) - BAX-L(HE-L,HM,HE-H) BOARD ONLY
RB2G
CHASSIS
W700B/ W800B
Troubleshooting
2-2 Led Blinking
#2
#3
2-2-2. 3x (Audio Error) – BAX-L(HE-L,HM,HE-H)board only
2-2. Led Blinking
F4601,IC4601 ,etc
(B* Board)
IC4601 ,etc
(B* Board)
Check 19.5V
(at fuse F4601)
to GND
impedance
Replace F4601
High
enough
Check the IC4601
Out pin 37, 41, 44, 46
Switching 0V to 19 V
around 300-400kHz
No
Check the IC4601
pin 18 (at CL4606)
is HIGH?
No
Low impedance
IC4601 or parts around IC4601
NG
Yes
Yes
Solder NG
IC4601
Check broken parts
NG
Check the CN4601
DC level ~ 9.7 V
(at JL4621~JL4624)
No
L4601-L4604
No
burn or broken ?
Yes
p
around IC4601
or C4611-C4614
NG
Yes
Check the IC4601
NG
Replace
IC4601
I2S line pin
4, 12, 15, 16 (at
CL4601~CL4604)
IC9000 NG
OK
IC4601 NG
#2 #3