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)
53
OK
Video1
NG / No 
picture
Check 
signal 
source 
or cable.
Video Signal 
Source problem or 
cable problem
NG
Check 
Input jack 
‘J3005’
connection
Make sure jack 
proper connection 
to board
NG
Check 
input 
signal 
1Vp-p at  
FB3000
R3302 
connection/defect
NG
OK
OK
Confirm R3043, 
FB3000 & C3033 
connection and 
value 
NG
OK
Confirm waveform at 
C3033 (face to IC5000) 
same as Ref1 (CB input 
pattern)
Ref1
IC5000 
defect
2) Video 1 - troubleshooting flow
TROUBLE SHOOTING
KLV-32EX330/40EX430(CH)
54
OK
OK
Video2
NG / No 
picture
Check 
signal 
source 
or cable.
Video Signal 
Source problem or 
cable problem
NG
Check 
Input jack 
‘J3006’
connection
Make sure jack 
proper connection 
to board
NG
Check 
input 
signal 
1Vp-p at  
R3032
R3014 or R3017 
connection/defect
NG
OK
Confirm R3032 & 
C3025 connection 
and value 
NG
OK
Confirm waveform at 
C3025 (face to IC5000) 
same as Ref2 (CB input 
pattern)
Ref2
IC5000 
defect
3) Video 2 - troubleshooting flow
TROUBLE SHOOTING
KLV-32EX330/40EX430(CH)
55
OK
R3014, R3017, 
R3015, R3018, 
R3016 or R3019  
connection/defect
Confirm R3014, 
R3034, C3027 
(Y0P line) 
connection and 
value 
IC5000 defect
NG
OK
NG
Ref3
Ref4
Ref5
Confirm R3015, 
R3036, C3029 
(PB0P line) 
connection and 
value 
Confirm R3016, 
R3037, C3030 
(PR0P line) 
connection and 
value 
Check input signal 0.7Vp-p
at  R3034_Y0P line , 
R3036_PB0P line & 
R3037_PR0P line
Confirm waveform at 
C3027 (face to IC5000) 
same as Ref3. Confirm 
waveform at C3029 
(face to IC5000) same 
as Ref4. Confirm 
waveform at C3030 
(face to IC5000) same 
as Ref5. Input CB 
pattern.
Component
NG / No 
picture
Check 
signal 
source or 
cable.
Video Signal 
Source problem or 
cable problem
NG
Check 
Input jack 
‘J3006’
connection
Make sure jack 
proper connection 
to board
NG
OK
OK
4) Component troubleshooting flow
TROUBLE SHOOTING
KLV-32EX330/40EX430(CH)
56
Auto switching NG
Input Pr-input 
at J3006 and 
check at 
R5033 = 5V?
R3039 defect
IC5000 defect
NG
OK
NG
OK
Take out Pr-
input at J3006 
and check at 
R5033 = 0V?
J3006 defect
Check at 
RB5004 
(pin3)  = 
5V?
RB5004 
connection/ defect
NG
OK
5) Auto switching Component / Video 2 troubleshooting flow
TROUBLE SHOOTING
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