51
TROUBLE SHOOTING
Check
Is Power LED
(D913,Green)
“ON”?
Is click sound
of Relay(S901)
heard?
Does Red LED
(D912) “ON”,”BLINK”
or “OFF”?
1. Turn OFF the power SW.
2. Wait for 3 seconds.
3. Turn ON again after several
seconds,and observe
green LEDs carefully.
Are 4 Green LEDs
turned OFF at the
same time?
PWB connecter
(PPS5) open.
SW+115V line
E907, D932,
D925, Q777,
QH01, Q701,
TH01, T701
etc.
SW+28V line
E904, D922,
etc.
SW+5.5V line
D955, I905,
etc.
Audio line
D956, E901,
D915, IAA1,
etc.
U901, D902,
etc.
SBY+5V line
I009, I001,
etc.
E907,
etc.
Check
Check
Check
Check
No
Raster
Is Voltage at
pin(4) of I901
14V-20V?
Has Fuse F903
blown?
D911, R906,
R907, C911
I901, D901,
R902
YES
YES
YES
YES
OFF
YES
NO
NO
BLINK
YES
NO
Is base Voltage
Of Q709 normal?
Does raster
Appear with (6) and (5)
Of PPD4 shorted?
Are Voltages
At both ends of T702
(primary side)
normal?
I501 pin(37)
-H out,
I503 pin(31)
-DEF Hvcc
etc.
T702, R748,
R730
etc.
Q777, QH01,
T701, TH01
etc.
NO
NO
NO
YES
YES
Is Voltage
at pin(16) of I001
3.3V?
Is Voltage
at pin(59) of I001
“H”?
YES
Q027, Q028,
PPS3, Q902
S901
etc.
Is Voltage
at pin(7) of I001
“AC CLOCK in”?
Check
Check
Check
Check
Check
Check
Check
Check
I901, D911,
D910, R908,
R909, R910
R911
Replace F903
Check
ON
I001
Check
YES
NO
YES
Check
I009, I001
NO
NO
NO
NO
Is Power LED
(D913,Green)
“ON”?
Q903, Q904,
etc.
YES
Check
Find LED(s) that is
Turned dark or OFF
Earlier than the others.
Q001, Q002,
I902, D906
etc.
Check
NO
TROUBLE SHOOTING
1. No raster and no power (How to check LED’s Diagnosis)
(Power Supply PWB)
(Power Supply PWB)
(Signal PWB)
(Signal PWB)
(Signal PWB)
(Deflection PWB)
(Deflection PWB)
(Power Supply PWB)
(Power Supply PWB)
(Power Supply PWB)
(Power Supply PWB)
(Power Supply PWB)
(Power Supply PWB)
Содержание C43-FD5000
Страница 44: ...44 SERVICE ADJUSTMENTS 2 SIGNAL SUB P W B IG02 IS02 IS01 IT01 IQ01 IG01 Look down view ...
Страница 56: ...56 EXPLODED VIEW ...
Страница 57: ...57 EXPLODED VIEW ...
Страница 96: ......
Страница 97: ......
Страница 98: ......
Страница 99: ......
Страница 100: ......
Страница 101: ......
Страница 102: ......
Страница 103: ......
Страница 104: ......
Страница 105: ......
Страница 106: ......
Страница 107: ......
Страница 108: ......
Страница 109: ......
Страница 110: ......
Страница 111: ......
Страница 112: ...CPT CONTROL LED P W B ...
Страница 113: ...DEFLECTION P W B ...
Страница 114: ...POWER SWITCH SIDE AV SENSOR P W B ...
Страница 115: ...SIGNAL A SIDE P W B ...
Страница 116: ...SIGNAL B SIDE P W B ...
Страница 117: ...TERMINAL SIGNAL SUB DEFLECTION SUB A SIDE P W B ...
Страница 118: ...TERMINAL SIGNAL SUB DEFLECTION SUB B SIDE P W B ...
Страница 119: ......
Страница 120: ......
Страница 121: ......
Страница 122: ......
Страница 123: ......