DOWNLOAD Sony KLV-32EX330 / KLV-40EX430 Service Manual ↓ Size: 6.99 MB | Pages: 82 in PDF or view online for FREE

Model
KLV-32EX330 KLV-40EX430
Pages
82
Size
6.99 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
klv-32ex330-klv-40ex430.pdf
Date
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Sony KLV-32EX330 / KLV-40EX430 Service Manual ▷ View online

KLV-32EX330/40EX430(CH)
57
PC display problem
Check PC input source 
signal or cable.
OK
NG
NG
PC Signal Source Problem or 
cable problem
Check PC jack ‘CN3001’
connection
OK
Replace jack
Confirm PC input source format 
/ resolution supported by TV?
OK
Change PC input source to TV 
supported format 
NG
PC detail path 
troubleshooting
6) PC - Troubleshooting flow
TROUBLE SHOOTING
KLV-32EX330/40EX430(CH)
58
PC NG/No picture
Check input 
signal 0.7Vpp at 
C3046_BP line, 
C3048_GP line 
& C3050_RP 
line
R3059 orR3060 or 
R3061 defect
Confirm RB3002 & 
C3046 (BP line) 
connection and value 
IC5000 
defect
NG
NG
OK
Confirm RB3002 & C3048 (GP line) 
connection and value 
Confirm RB3002 & 
C3050 (RP line) 
connection and value 
Check pull 
up 5V at  
R3066 & 
R3067
Confirm D3000, 
R3066 & R3067 
connection and value
Check 5V at 
C3042_HSY
NC & 
C3043_VSY
NC 
Confirm RB3001 
connection and value
OK
OK
OK
NG
NG
Confirm waveform
at C3046 (face to IC5000) same
as BP-signal. Confirm waveform at
C3048 (face to IC5000) same as
GP-signal. Confirm waveform
at C3050 (face to IC5000)
same as RP-signal.
Input CB pattern.
7) PC detail path troubleshooting flow
TROUBLE SHOOTING
RP-signal
GP-signal
BP-signal
KLV-32EX330/40EX430(CH)
59
HDMI  Problem
Check HDMI input source 
signal or cable.
OK
NG
NG
HDMI Signal Source Problem or 
cable problem
Check LVDS harness 
connection between 
BxM board.
Reconnect LVDS cable 
or change new LVDS 
cable
Check HDMI 
jack.
NG
OK
OK
Change B* board
Change board circuit
Confirm HDMI input source format / 
resolution supported by TV?
OK
Change HDMI input source to TV 
supported format 
NG
(*)
Size
B* Board Type
32”
BWM 
40’’
BFM 
3-8. HDMI TROUBLESHOOTING FLOW
TROUBLE SHOOTING
KLV-32EX330/40EX430(CH)
60
TROUBLE SHOOTING
1) HDMI 1/2 Troubleshooting
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