Led Blinking 3X (Audio Error) Bax-L(He-L, Hm, He-H, Xm-L) Board Only - Sony KJ-32W7 C Series Service Manual

Table of Contents

Advertisement

Troubleshooting

3-2-3. LED BLINKING 3x (Audio Error) BAX-L(HE-L, HM, HE-H, XM-L) board only

#2
F4601,IC4601,etc
(B* Board)
Check 19.5V
(at fuse F4601)
to GND
impedance
Low impedance
IC4601
burn or broken ?
Yes
Replace IC4601
High
enough
Replace F4601
No
Check broken parts
around IC4601
#3
IC4601,etc
(B* Board)
Check the IC4601
No
Out pin 37, 41, 44, 46
Switching 0V to 19V
around 300-400kHz
Yes
Check the CN4601
DC level ~9.7V
No
(at JL4621~JL4624)
Yes
Check the IC4601
NG
I2S line pin
4, 12, 15, 16 (at
CL4601~CL4604)
OK
IC4601 NG
Check the IC4601
No
pin 18 (at CL4606)
is HIGH?
Yes
Solder NG
IC4601 or parts around IC4601
NG
L4601-L4604
or C4611-C4614
NG
IC9000 NG
38

Advertisement

Table of Contents
loading

Table of Contents