Sony KDL-32R435A / KDL-40R485A / KDL-46R485A / KLV-24R402A / KLV-24R422A / KLV-32R402A / KLV-32R407A / KLV-32R422A / KLV-40R452A / KLV-40R457A / KLV-40R472A / KLV-46R452A / KLV-46R472A Service Manual ▷ View online
ITC2
CHASSIS
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Troubleshooting
3-6-2. Video Troubleshooting Flow
Vid
Check
i
l
Check
Check
i
t
OK
OK
Ref1
Confirm waveform
Video
NG / No
picture
signal
source
or
cable.
NG
Check
Input jack
‘J3002’
connection
NG
OK
input
signal
0.7Vp-p
at R3018
NG
OK
OK
OK
IC5000
defect
at C3015 (face to IC5000)
same as Ref1
(CB input pattern)
Video Signal
Source problem
or cable problem
Make sure jack
proper connection
to board
R3010
connection/defect
Confirm R3018 &
C3015
ti
NG
C3015 connection
and value
37
ITC2
CHASSIS
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Troubleshooting
Troubleshooting References (BB Board)
R3018
C3015
J3002
JL6012
R3010
38
ITC2
CHASSIS
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Troubleshooting
3-6-3. Component Troubleshooting Flow
Ch
k
Ch
k
Check
signal
source
or cable.
NG
Check
Input jack
‘J3002’
connection
NG
OK
OK
Component
NG / No
picture
Ref2
Ref3
Video Signal
Source problem or
cable problem
NG
Make sure jack
proper connection
to board
NG
OK
Ref2
Ref4
Confirm waveform at
IC5000 defect
OK
OK
Check input
signal 0.7Vp-p
at R3018_Y0P line ,
R3020_PB0P line &
R3021_PR0P line
C3015 (face to IC5000)
same as Ref2. Confirm
waveform at C3017 (face
to IC5000) same as Ref3.
Confirm waveform at
C3018 (face to IC5000)
NG
NG
same as Ref4. Input CB
pattern.
R3010, R3011, or
R3012
connection/defect
Confirm R3010,
C3010, R3018,
C3015 (Y0P line)
connection and value
Confirm R3011,
C3011, R3020,
C3017 (PB0P line)
connection and value
Confirm R3012,
C3012, R3021,
C3018 (PR0P line)
connection and value
39
ITC2
CHASSIS
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Troubleshooting
Troubleshooting References (BB Board)
R3018
R3020
R3021
R3010
C3010
R3011
C3011
C3015
C3017
C3017
R3012
C3012
J3002
40
Click on the first or last page to see other KDL-32R435A / KDL-40R485A / KDL-46R485A / KLV-24R402A / KLV-24R422A / KLV-32R402A / KLV-32R407A / KLV-32R422A / KLV-40R452A / KLV-40R457A / KLV-40R472A / KLV-46R452A / KLV-46R472A service manuals if exist.