Component Troubleshooting Flow - Sony KLV-24R402A Service Manual

Troubleshooting

3-6-3. Component Troubleshooting Flow

Check Ch
Component
NG / No
source
picture
or cable.
NG NG
Video Signal
Source problem or
cable problem
k Ch Check k
OK
signal Input jack
'J3002'
connection
NG NG
Make sure jack
proper connection
to board
at R3018_Y0P line ,
R3020_PB0P line &
R3021_PR0P line
NG
R3010, R3011, or
R3012
connection/defect
OK OK
Ref2 Ref2
Confirm waveform at
C3015 (face to IC5000)
Check input
same as Ref2. Confirm
signal 0.7Vp-p
OK
waveform at C3017 (face
to IC5000) same as Ref3.
Confirm waveform at
C3018 (face to IC5000)
same as Ref4. Input CB
Confirm R3010,
C3010, R3018,
C3015 (Y0P line)
connection and value
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Ref3
Ref4
OK
IC5000 defect
pattern.
NG
Confirm R3011, Confirm R3012,
C3011, R3020, C3012, R3021,
C3017 (PB0P line) C3018 (PR0P line)
connection and value connection and value
ITC2 CHASSIS
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