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Daewoo DW-Q73D2N-LS User Manual

Daewoo DW-Q73D2N-LS
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44
TROUBLESHOOTING
2. SYSTEM CIRCUIT
No LED display.
Is 5V obtained at IC701
pin # 9, 25?
Oscillation at IC701 pin #1?
Check L703, pin#6 of PJ701
Exchange IC701.
Check IC 701 pin #6, 7, 8
Check IC 701 pin #
10-12,14,15
NO
YES
YES
NO
Check PCB
NO
NO
KEY output at PORT of IC701?
Is there KEY/SEG signal?
YES
SEG output at PORT of IC701?
Exchange IC701.
YES
A. LED DISPLAY
NO

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Daewoo DW-Q73D2N-LS Specifications

General IconGeneral
BrandDaewoo
ModelDW-Q73D2N-LS
CategoryDVD Recorder
LanguageEnglish

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