Triage Chart - Sony KDL-22EX420 Service Manual

Self Diagnostic Function

2-6. Triage Chart

Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
Reference
**
2 3 4
▲ ▲
B* BOARD l
▲ ▲
G* BOARD l
H* BOARD （ IR ）
RF Module （ RF ）
▲
SPEAKER
Skype Module
Wifi Module
l
LD B OARD**
▲
LVDS CABLE
TCON
l
LCD Panel
POWER POWER POWER
Problem
AUDIO
D oubtful Part
Few Possibility
* Not applicable for this manual
**
*
5 6 7 8 10
▲ ▲
l l
▲
l
▲
l
*
l
*
▲
▲
▲
l
▲
l
PANEL PANEL
(TCON) (Backlight) TEMP EMIT-TER
FAN
(N/A)
Green LED No
Blinking Power - missing or distorted
Stationary
Green LED colored
non-stop No Green Power lines or
*
Blinking LED (Dead Set) dots
▲ ▲ ▲
▲
l
▲
l l
Segment
P-1
P-1
P-1
P-1
P-1
18
KDL- 22, 26 EX420, 32,40,46 EX520
KDL- 22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
Video
Remote
No video
One of No video
Inputs all Inputs No Remote can't connect
▲
l l
l
*
l
*
▲
Size B* Board G* Board
Type Type
22 BAT-S G1A
26 BAT-S G1B
32 BAT-V GE2A
40 BAT-V GE3A
46 BAT-V GE3A
RM-GD020, CD013
RM-GD020
Skype
Network Audio Skype
Wireless Skype
No Audio Can't W ork
▲ ▲
l
▲
l
l
* ▲
l
*
H* Board
Type
HLR2
HLR2
HLR2
HLR2
HLR2