53
NO
NO
NO
NO
YES
YES
YES
YES
Is
Voltage at pin(4) of
IP01 14V - 18V ?
Check DP04, RP02,
RP03, CP05
(Deflection PWB)
(Power Supply PWB)
Check D904, R905,
R906, C907
Check IP01
Check I901
Is
Voltage at pin(4) of
I901 14V - 18V ?
Has protector EP91 blown?
Has protector E991 blown?
Check Q008, Q009
I904, D909
B
C
Check Q003, Q004,
D922, S901
Check IP01, DP04
Replace EP91
Check I901, D961
Replace E991
Check I001
NO
NO
NO
YES
YES
YES
Is
Voltage at pin (51)
and (33) of
I001 3.3V?
Is
Voltage at pin (53) of
I001 "L" ?
Is
Voltage at pin (23) of
I001 "AC CLOCK in" ?
Check Q029, D035
and L004
(Signal PWB)
A
Summary of Contents for 50NP4
Page 55: ...55 ...
Page 56: ...56 ...
Page 57: ...57 ...
Page 64: ...PRINTED CIRCUIT BOARD 61 2H Video Terminal P W B ...
Page 65: ...PRINTED CIRCUIT BOARD DEFLECTION P W B 62 ...
Page 66: ...PRINTED CIRCUIT BOARD SIGNAL P W B 63 ...
Page 67: ...PRINTED CIRCUIT BOARD VM SENSOR 2 64 ...
Page 68: ...PRINTED CIRCUIT BOARD POWER SUPPLY P W B 65 ...
Page 69: ...PRINTED CIRCUIT BOARD SRS P W B 66 ...
Page 70: ...67 WIRING DRESS DRAWING ...
Page 71: ...68 50NP4 WIRING DRAWING ...
Page 72: ...69 60NP4 WIRING DRAWING ...
Page 73: ...70 50NP4 WIRING DRAWING ...
Page 74: ...71 60NP4 WIRING DRAWING ...
Page 75: ...72 BLOCK DIAGRAM ...
Page 76: ...73 WIRING DRAWING ...
Page 90: ...88 ...