– 62 –
TROUBLESHOOTING
4-2. Power Supply Circuit Abnormal
(1)
Remove connector CN5 (CN6 for Commodore type) of the main logic board.
YES
Replace Fuse F1
Fuse is
blown again?
NO
START
Fuse F1
is blown?
NO
Fuse F2 or F3
is blown?
NO
Check operation.
END
Replace
1) Transformer
2) IC1
YES
F3 is for AC120 only
YES
YES
YES
NO
Replace
Fuse F2 or F3
Fuse is
blown again?
NO
ACS1
and ACS2 are
supplied?
NO
Replace
transformer
The no load voltages are below:
ACS2
AC29.9V
ACS1
AC8.5V
Check or replace
1) D1~D4
2) IC1
NO
Check or replace
1) DB1
2) TR1, TR3
+5V line
is supplied?
YES
+24V line
is supplied?
YES
Содержание lC-10
Страница 1: ...DOT MATRIX PRINTER NX 1000SERIES LC 10SERIES TECHNICAL MANUAL NINTH EDITION ...
Страница 5: ... 2 GENERAL SPECIFICATIONS ...
Страница 9: ... 6 GENERAL SPECIFICATIONS Fig 1 1 External Dimensions ...
Страница 11: ... 8 GENERAL SPECIFICATIONS Fig 1 3 Diagram of Internal Composition ...
Страница 17: ... 14 THEORY OF OPERATION ...
Страница 33: ...ADJUSTMENTS 30 ...
Страница 39: ...PARTS REPLACEMENT 36 ...
Страница 49: ... 46 ...
Страница 52: ... 49 MAINTENANCE AND LUBRICATION Fig 5 1 Lubricated Areas Detail B Monochrome Type Detail B Colour Type ...
Страница 53: ... 50 ...
Страница 55: ... 58 REPLACEMENT AND ADJUSTMENT OF PARTS ...
Страница 69: ... 66 ...
Страница 71: ... 68 1 Printer Assembly Ver 1 and 1 5 1 1 Disassembly Drawing ...
Страница 74: ... 71 2 Printer Mechanism Ver 1 and 1 5 2 1 Disassembly Drawing ...
Страница 79: ... 76 3 3 2 Colour Type ...
Страница 83: ... 80 4 Wiring Scheme of Printer Ver 1 and 1 5 4 1 Parallel Type WIRING SCHEME ...
Страница 84: ... 81 4 2 Commodore Type WIRING SCHEME ...
Страница 85: ... 82 5 Main Logic Board Ver 1 and 1 5 5 1 Parallel Type Ver 1 5 1 1 Component Layout A Board ...
Страница 86: ... 83 B Board ...
Страница 90: ... 87 Blank Page ...
Страница 91: ... 88 5 1 3 Circuit Diagram Ver 1 ...
Страница 92: ... 89 ...
Страница 93: ... 90 ...
Страница 94: ... 91 ...
Страница 95: ... 92 5 2 Parallel Type Ver 1 5 5 2 1 Component Layout A Board ...
Страница 96: ... 93 5 2 1 Component Layout B Board ...
Страница 100: ... 97 Blank Page ...
Страница 101: ... 98 5 2 3 Circuit Diagram Ver 1 5 ...
Страница 102: ... 99 ...
Страница 103: ... 100 ...
Страница 104: ... 101 ...
Страница 105: ... 102 5 3 Commodore Type 5 3 1 Component Layout A Board ...
Страница 106: ... 103 5 3 1 Component Layout B Board ...
Страница 109: ... 106 5 3 3 Circuit Diagram ...
Страница 110: ... 107 ...
Страница 111: ... 108 ...
Страница 112: ... 109 ...
Страница 113: ... 110 6 Power Supply Unit Ver 1 and 1 5 6 1 Circuit Diagram 6 2 Component Layout ...
Страница 117: ... 114 ...
Страница 119: ... 116 1 Printer Assembly 1 1 Disassembly Drawing ...
Страница 122: ... 119 2 Printer Mechanism 2 1 Disassembly Drawing ...
Страница 129: ... 126 4 Wiring Scheme of Printer Ver 2 ...
Страница 130: ... 127 5 Main Logic Board Ver 2 5 1 Component Layout ...
Страница 134: ... 131 Blank Page ...
Страница 135: ... 132 5 3 Circuit Diagram Ver 2 ...
Страница 136: ... 133 ...
Страница 137: ... 134 ...
Страница 138: ... 135 ...
Страница 139: ... 136 6 Power Supply Unit Ver 2 6 1 Circuit Diagram 6 2 Component Layout ...
Страница 143: ... 140 ...
Страница 145: ... 142 ...
Страница 148: ... 145 9 Transistor 2SD1637 10 Transistor 2SD2010 ...
Страница 149: ... 146 ...
Страница 150: ......