33
42PD7200 (PW2)
Synchronization
[Video PWB Circuit]
No Sync or Invalid Sync
Trouble of Sub picture
Sub picture ?
YES (Sub picture)
Are waveforms at
TP61(H) and
TP62(V) ?
NO
(Single picture or Main picture)
Check Formatter PWB
YES
NO
Are waveforms at
61pin(H) and 58pin(V)
of I601?
Check I602
YES
NO
Component Input ?
Check I601 and Input terminals
YES (Component Video)
NO
(RF/Composite Video/
S-Video/RGB-Video/HDMI)
Are waveforms at
31pin(H) and 32pin(V)
of I601?
Check I601
YES
NO
NTSC or PAL ?
<RF/Composite Video>
YES (NTSC/PAL<RF/Composite Video>)
NO
(S-Video/SECAM)
SECAM ?
<RF/Composite Video>
YES (SECAM<RF/Composite Video>)
NO
(S-Video)
HDMI Input ?
YES (HDMI)
NO
(RF/Composite Video/S-Video)
Is waveform at
25pin(Y) of I601?
Check I601
Check HDMI PWB
YES
NO
Is waveform at
44pin(Y) of I501?
Check I501 and Q211
Is waveform at
44pin(Y) of I201?
YES
NO
Check Q504 and Q211
Check I201 and Input terminal
YES
NO
Is waveform at 5pin(Y)
of I501?
Check I501
Is waveform at
TP32(Y)?
YES
NO
Check Q304, Q305 and Q306
YES
NO
Is waveform at
44pin(CV) of I501?
Check I501
YES
NO
Is waveform at
44pin(CV) of I201?
Is waveform at
TP31(CV) ?
Check I302
YES
NO
Check Q211, Q301, Q302, Q303
RF Input ?
YES
NO
Check I201 and TUNER PWB
YES (RF)
NO
(Composite Video)
Check I201 and Input terminal
Is waveform at
44pin(CV) of I201?
Check Q211 and Q504
YES
NO
RGB-Video Input ?
NO
(RF/Composite Video/
S-Video/HDMI)
Is waveform at
68pin(CV) of I601?
YES (RGB-Video)
Check I601
YES
Is waveform at
44pin(CV) of I501?
Check I501, Q211 and Q518
YES
NO
NO
Check I201 and Input terminal
Is waveform at
44pin(CV) of I201?
Check Q211 and Q504
YES
NO
Summary of Contents for 42PD7200
Page 10: ...9 42PD7200 PW2 Block diagram ...
Page 41: ...40 42PD7200 PW2 MEMO ...
Page 42: ...41 42PD7200 PW2 9 Basic circuit diagram 1 2 3 4 5 6 6 1 2 3 4 5 D A B C E F G ...
Page 43: ...42 42PD7200 PW2 1 2 3 4 5 6 6 1 2 3 4 5 D A B C E F G ...
Page 44: ...43 42PD7200 PW2 1 2 3 4 5 6 6 1 2 3 4 5 D A B C E F G ...
Page 45: ...44 42PD7200 PW2 1 2 3 4 5 6 6 1 2 3 4 5 D A B C E F G ...
Page 46: ...45 42PD7200 PW2 1 2 3 4 5 6 6 1 2 3 4 5 D A B C E F G ...
Page 47: ...46 42PD7200 PW2 1 2 3 4 5 6 6 1 2 3 4 5 D A B C E F G ...
Page 48: ...47 42PD7200 PW2 1 2 3 4 5 6 6 1 2 3 4 5 D A B C E F G ...
Page 49: ...48 42PD7200 PW2 1 2 3 4 5 6 6 1 2 3 4 5 D A B C E F G ...
Page 50: ...49 42PD7200 PW2 1 2 3 4 5 6 6 1 2 3 4 5 D A B C E F G ...
Page 51: ...50 42PD7200 PW2 1 2 3 4 5 6 6 1 2 3 4 5 D A B C E F G ...
Page 59: ...58 42PD7200 PW2 11 Block diagram ...
Page 63: ...62 42PD7200 PW2 Disassembly diagram 42V 13P CONNECTOR A5 2 Gasket Gasket ...
Page 66: ...THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA ...