rezident
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Откуда: Пермь Сообщений: 4561 Регистрация: 31.03.2004
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Trouble Shooting
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3. Trouble shooting procedure
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d) Screen is black with no high voltage.
1) Check for 80V at anode of DP12 --- Check 80V with no load if no 80V Check SMPS If 80V OK, Check TH04, QH04,DH05
2) Check for 12V at pin7 of ICH03 --- Check 12V with no load If no 12V, Check QP10,DP15,QP07, SMPS If 12V OK, Check ICH01,ICH03,ICC01
3) Check Switching pulse of pin6 of ICH03 --- Check ICH03, RH24, CH11
4) Check Switching pulse at Drain of QH04 --- Check QH04
5) Check TH04(FBT) |
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00:39 02-12-2005
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