Star Micronics LC-8521, Technical Manual

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CHAPTER 7
PARTS LIST
HOW TO USE PARTS LIST
(1) DRWG. NO.
This column shows the drawing number of the illustration.
(2) REVISED EDITION MARK
This column shows a revision number.
Part that have been added in the revised edition are indicated with "#".
Part that have been abolished in the revised edition are indicated with "*".
#1:First edition Second edition *1:First edition Second edition
(3) PARTS NO.
Parts numbers must be notified when ordering replacement parts. Parts described as
′′
NPN
′′
have no parts number and are not
in stock, unavailable.
(4) PARTS NAME
Parts names must be notified when ordering replacement parts.
(5) Q’TY
This column shows the number of the part used as indicated in the figure.
(6) REMARKS
Where differences in specifications exist depending on location/destination.
HK.....Hong Kong AS.....Australia SU.....Russia
(7) RANK
Parts marked “S” are service parts. Service parts are recommended to be in stock for maintenance.
1. Printer Assembly ...................................................... 78
1-1. Disassembly Drawing .................................... 78
1-2. Parts List ......................................................... 79
2. Printer Mechanism .................................................... 80
2-1. Disassembly Drawing .................................... 80
2-2. Parts List ......................................................... 82
3. Sub - Assembly ......................................................... 84
3-1. Lower Cace Unit ............................................. 84
3-2. Sheet Guide Unit ............................................. 85
3-3. Printer Cover Unit ........................................... 86
3-4. Upper Case Unit .............................................. 87
3-5. Tractor Unit ..................................................... 88
3-6. Serial-Parallel Converter (Option) ................. 89
3-7. Carriage Unit ................................................... 90
3-8. Platen Assy ..................................................... 91
3-9. Roller Angle Assy ........................................... 92
3-10. Frame Holder Unit .......................................... 93
3-11. Paper Guide Unit ............................................ 94
3-12. Frame L Unit .................................................... 95
3-13. Frame R Unit ................................................... 96
4. Wiring Scheme of Printer ......................................... 98
5. Electrical Parts ........................................................ 100
5-1. Main Logic Board ......................................... 100
5-1-1. Circuit Diagram ................................... 100
5-1-2. Component Layout ............................. 104
5-1-3. Parts List .............................................. 106
5-2. Control Panel Board ..................................... 110
5-2-1. Circuit Diagram ................................... 110
5-2-1. Component Layout ............................. 110
5-2-3. Parts List .............................................. 110
5-3. Connected Board .......................................... 111
5-3-1. Circuit Diagram ................................... 111
5-3-2. Component Layout ............................. 111
5-3-3. Parts List .............................................. 111
5-4. Power Supply Unit ........................................ 112
5-4-1. Circuit Diagram ................................... 112
5-4-2. Component Layout ............................. 113
5-4-3. Parts List.............................................. 114
6. Serial - Parallel Converter Board ( Option ) .......... 116
6-1. Wiring Scheme .............................................. 116
6-2. I/F Board ........................................................ 117
6-2-1. Circuit diagram .................................... 117
6-2-2. Component Layout ............................. 117
6-2-3. Parts List.............................................. 117
6-3. CPU Board ..................................................... 118
6-3-1. Circuit diagram .................................... 118
6-3-2. Component Layout ............................. 119
6-3-3. Parts List.............................................. 119
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