參數(shù)資料
型號(hào)： SYNCMASTER170T_180T
英文描述： Monitor_ICs:GS1881 AD9884AKS-140 416S1020B MTV121P-31 MX88L282FC 3P863
中文描述： Monitor_ICs：GS1881 AD9884AKS - 140 416S1020B MTV121P - 31 MX88L282FC 3P863
文件頁數(shù)： 21/65頁
文件大?。?/td> 1211K
代理商： SYNCMASTER170T_180T
SyncMaster 753DF/755DF
5-1
5 Troubleshooting
5-1 Parts Level Troubleshooting
Notes:
1. If a picture does not appear, fully rotate the brightness and contrast controls clockwise and reinspect.
2. Check the following circuits.
No raster appears: Power circuit, Horizontal output circuit.
High voltage develops but no raster appears: Video output circuits.
High voltage does not develop: Horizontal output circuits.
5-1-1 No Power Supply
Chirping noise exists
Check and replace IC601.
Check and replace D601, FH1
Done.
No
Yes
Repeating start
Check and replace D606.
No
Yes
IC601 Pin 1 waveform is right
Check and replace D614, IC601,
Q602, ZD601.
Yes
No
C622 Voltage is 13 V ± 0.5V
Check and replace IC201, IC301,
IC401, Q402, Q404.
Yes
No
Normal operation
Replace Main board.
Yes
Verify voltages.
Yes
No
WAVEFORMS
1
1
100 V (IC601, #1)
CH1 P-P = 100 V
CH1 RMS = 350.2 V
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