-76-
Main PCB Trouble Diagnosis
- Possible Symptoms when VIDEO or DIGITAL PCB has a trouble
DIGITAL
Y-SUS ( Y-CONTROL : P102
P102A, P103
P103A)
- Possible Symptoms when Y-SUS PCB or SCAN PCB has a trouble
DIGITAL
CONN-LEFT ( P304
P304A )
- Possible Symptoms when DATA COF(1st ~ 3rd PAD from left) or CONN-
LEFT PCB has a trouble ( refer to Trouble Symptom Picture <2> ~ <4> )
DIGITAL
CONN-RIGHT ( P302
P302A, P303
P303A )
- Possible Symptoms when DATA COF(4th ~7th PAD from left) or CONN-
RIGHT PCB has a trouble ( refer to Trouble Symptom Picture <1> )
- Possible Symptoms when X-SUS PCB has a trouble ( P302
P302A
CONNECTION contains X-SUS PCB CONTROL SIGNAL as well as DATA.
So if this CONNECTION is bad, X-SUS PCB might not operate).
CONN-RIGHT
X-SUS ( X-CONTROL : P202
P202A )
- Possible Symptoms when X-SUS PCB has a trouble.
- Only weak discharge (luminescence) shows on screen. But, No Data ison
screen. ( P202
P202A CONNECTION contains Vadd power source as well
as X-CONTROL. So, if this CONNECTION is bad, the problem could be
caused by incorrect power supply to DATA COF )
CONN-LEFT/RIGHT
DATA COF (Z_DATA/CONTROL : PC1~7 )
- Possible Symptoms when DATA COF has a trouble.
( refer to Trouble Symptom Picture <1> ~ <4> )
Summary of Contents for DP-42GM
Page 10: ...10...
Page 41: ...41 Adjusting Method FIG 6 1 X SUS PCB Adjusting Points...
Page 42: ...42 Adjusting Method FIG 6 2 Y SUS PCB Adjusting Points...
Page 56: ...56 Main PCB Trouble Diagnosis 2 DHS 3 DEN...
Page 57: ...57 Main PCB Trouble Diagnosis 4 DCLK 5 CLK50M...
Page 58: ...58 Main PCB Trouble Diagnosis 6 M_CLK 7 F_SUBF...
Page 59: ...59 Main PCB Trouble Diagnosis 8 CLK480 9 SLCT...
Page 85: ...84...
Page 86: ...86 13 FIGURE COLLECTION FIG 1 TOTAL...
Page 87: ...87 FIGURE COLLECTION FIG 2 Y SUS SCAN...
Page 88: ...88 FIGURE COLLECTION FIG 3 X SUS...
Page 89: ...89 FIGURE COLLECTION FIG 4 VIDEO JACK...
Page 90: ...90 FIGURE COLLECTION FIG 5 POWER...
Page 91: ...91 FIGURE COLLECTION FIG 6 INLET...
Page 92: ...92 FIGURE COLLECTION FIG 7 LEFT UP...
Page 93: ...93 FIGURE COLLECTION FIG 8 LEFT DOWN...
Page 94: ...94 FIGURE COLLECTION FIG 9 RIGHT UP...
Page 95: ...95 FIGURE COLLECTION FIG 10 RIGHT DOWN...
Page 96: ...96 FIGURE COLLECTION FIG 11 WITHOUT JACK...
Page 97: ...97 FIGURE COLLECTION FIG 12 DIGITAL...
Page 98: ...98 FIGURE COLLECTION FIG 13 AC SWITCH ASSEMBLY...
Page 99: ...99 FIGURE COLLECTION FIG 14 SCAN ASSEMBLY 1...
Page 100: ...100 FIGURE COLLECTION FIG 15 SCAN ASSEMBLY 2...
Page 101: ...101 FIGURE COLLECTION FIG 16 X SUS_ASSEMBLY...
Page 102: ...102 FIGURE COLLECTION FIG 17 FRONT MASK_ASSEMBLY...
Page 103: ...103 FIGURE COLLECTION FIG 18 FRONT MASK_INSIDE...
Page 104: ...104 FIGURE COLLECTION FIG 19 BACK COVER...
Page 105: ...105 FIGURE COLLECTION FIG 20 POWER ADJUSTING POINTS...
Page 106: ...106 FIGURE COLLECTION FIG 21 POWER HIGH VOLTAGE SWITCH...
Page 107: ...107 FIGURE COLLECTION FIG 22 HOW TO ADJUST VOLTAGE...
Page 108: ...108 FIGURE COLLECTION FIG 23 Y SUS SCAN PCB DIODE TEST...
Page 109: ...109 FIGURE COLLECTION FIG 24 SCANH PCB DIODE TEST...
Page 110: ...110 FIGURE COLLECTION FIG 25 SCANL PCB DIODE TEST...
Page 111: ...111 FIGURE COLLECTION FIG 26 5 STEP GRAY SCALE PATTERN...
Page 112: ...112 14 Trouble Sumpton Picture Trouble Symptom Picture 1...
Page 113: ...113 Trouble Sumpton Picture Trouble Symptom Picture 2...
Page 114: ...114 Trouble Sumpton Picture Trouble Symptom Picture 3...
Page 115: ...115 Trouble Sumpton Picture Trouble Symptom Picture 4...
Page 116: ...116 Trouble Sumpton Picture Trouble Symptom Picture 5...
Page 117: ...117 Trouble Sumpton Picture Trouble Symptom Picture 6...
Page 118: ...118 Trouble Sumpton Picture Trouble Symptom Picture 7...
Page 119: ...119 Trouble Sumpton Picture Trouble Symptom Picture 8...
Page 120: ...120 Trouble Sumpton Picture Trouble Symptom Picture 9...
Page 121: ...121 Trouble Sumpton Picture Trouble Symptom Picture 10...
Page 122: ...122 Trouble Sumpton Picture Trouble Symptom Picture 11...
Page 123: ...123 Trouble Sumpton Picture Trouble Symptom Picture 12...
Page 124: ......