KDL-60W840B, KDL-60W850B, KDL-60W855B, KDL-60W857B, KDL-60W858B, KDL-70W830B, KDL-70W840B, KDL-70W850B, KDL-70W855B, KDL-70W856B, KDL-70W857B - Sony TV Service Manual (repair manual). Page 20

Read Sony KDL-60W840B / KDL-60W850B / KDL-60W855B / KDL-60W857B / KDL-60W858B / KDL-70W830B / KDL-70W840B / KDL-70W850B / KDL-70W855B / KDL-70W856B / KDL-70W857B Service Manual online

RB2G
CHASSIS
W830B/ W840B/ W850B/  W855B
W856B/ W857B
Troubleshooting
3-2-5. LED BLINKING 7x (Temperature Error)
3-3. No Sound
No Sound
7-times blinking
No Sound
Ch
k th
Change to
“Audio System”
Setting 
circumstance is OK?
Temperature, 
Ventilation, etc.
Set to another
location, etc.
No
Check the 
“Speakers setting”
Change to 
“TV Speaker”
“TV Speakers”
Yes
Panel
NG
Change BAXL Board
and
Aging a few
Change 
the Speaker
Harness
Replace
the BAXL 
Board
NG
Symptom 
improvement
No Sound: 
Audio 
BAXL Board
Aging a few 
hours
Symptom 
improvement
Speaker 
Harness
Speaker
NG
Symptom 
improvement
No Sound: 
Tuner
No Sound: 
HDMI
BAXL  
Board
Harness
p
20

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