- 13
I. VCR and Front panel
1. SYSTEM CIRCUIT
No LED display.
Oscillation at IC701 pin #1?
Specific GRID/SEG doesn’t
function.
GRID output at PORT of
IC701?
SEG output at PORT of
IC701?
Check PCB Pattern.
Exchange IC701.
Check IC 701 pin #22~24, 27,
28, 30, 31
.
Check IC 701 pin #10~12,
14~21.
Exchange IC701.
A. LED DISPLAY
YES
NO
YES
YES
YES
NO
NO
NO
Is 5V obtained at IC701
pin #9, 25?
Summary of Contents for DVCR101
Page 1: ...DVCR101 DVD VCR PLAYER SERVICE MANUAL...
Page 41: ...40 2 TOP COVER REMOVAL...
Page 42: ...41 3 LOGIC PCB DISASSEMBLY...
Page 43: ...42 4 DECK AND MAIN PARTS DISASSEMBLY...
Page 44: ...43 5 MAIN PCB DISASSEMBLY...
Page 45: ...44 6 MAIN CHASSIS DISASSEMBLY...
Page 46: ...45 7 EXPLODE VIEW CIRCUIT DIAGRAM...
Page 47: ...46...
Page 48: ...47...
Page 49: ...48...
Page 50: ...49...
Page 51: ...50...