24
DVD-3910
TROUBLE SHOOTING
ラ
ルシューティン
1. GU-3618 (MAIN UNIT) ,GU-3613-1 (SYSTEM UNIT) 1. GU-3618 (MAIN UNIT) ,GU-3613-1 (SYSTEM UNIT)
1.1. FL TUBE dosen't light 1.1. FL
(1) Check the Set-up process of System 㱘-COM (IC202) (1)
ス
µ-COM (IC202)
ェッ
工
Check Power Supply Voltages.
GU-3613-1(SYSTEM UNIT) GU-3613-1(SYSTEM PWB)
・ [IC202]:80,60 N.G Check Soldering. ・ [IC202]:80,60 N.G
+3.3V_D1,+3.3V_D4 ・ CY131 on SYSTEM UNIT. +3.3V_D1,+3.3V_D4 ・ SYSTEM UNITのCY131
O.K. O.K.
Check Oscillation waveform.
GU-3613-1(SYSTEM UNIT) GU-3613-1(SYSTEM UNIT)
・ [IC202]: N.G Check Soldering. ・ [IC202]: N.G
16MHz at 13pin. ・ X201 on SYSTEM UNIT. 16MHz at 13pin. ・ SYSTEM UNITのX201
O.K. O.K.
Check Power Supply Voltages.
GU-3613-1(SYSTEM UNIT) GU-3613-1(SYSTEM UNIT)
・ [IC202]: N.G Check Soldering. ・ [IC202]: N.G
"H"level at 39pin?"L"level at 7pin and ・ IC202 on SYSTEM UNIT. "H"level at 39pin?"L"level at 7pin and ・ SYSTEM UNITのIC202
44pin? 44pin?
O.K. O.K.
Check Reset Signal RESET
の
GU-3613-1(SYSTEM UNIT) GU-3613-1(SYSTEM UNIT)
・ [IC202]: N.G Check Soldering. ・ [IC202]: N.G
"H"level at 10pin? ・ IC201(Reset IC) on SYSTEM UNIT. "H"level at 10pin? ・ SYSTEM UNITのIC201(Reset IC)
O.K. O.K.
Check Data Bus between
ー
スの
GU-3614-1(DISPLAY UNIT) GU-3614-1(DISPLAY UNIT)
FLD Driver(GU-3614-4(IC101)] N.G (1) Check soldering of CY211 on SYSTEM UNIT. FLD Driver(GU-3614-4(IC101)] N.G (1) SYSTEM UNITのCY211の
・ [VFD_RST]:"H"level? (2) GU-3614-4 is N.G.(No Good). ・ [VFD_RST]:"H"level? (2) GU-3614-4 の
O.K. O.K.
Continue to next step.
のス
ッ
へ
Check the Set-up process of B/E 㱘-COM. (2)B/E µ-COM
ェッ
工
へ
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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