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118
PARTS REPLACEMENT
5.
Power Supply Unit
(1) Remove
•
Upper case unit according to the procedure described in item 1.
•
Connector [1]
•
Three tapping screws [2]
•
Two screws [3]
•
Two screws [4]
•
Power switch holder [5]
•
Power switch [6]
•
Power supply unit [7]
6.
Fuses
(1) Remove
•
Power supply unit according to the procedure described in item 5.
(2) Inspect
•
Fuse F1 [1]
•
Fuse F2 [2]
•
Fuse F3 [3]
Defective → Replace fuse as follows:
AC Voltage
120V
220V/240V
F1
5TT1A
630mA
Destination F2,F3
For US, UK, AS 5TT3A
For EC, WG, HK EAK3.15A
New fuse blown → Inspect circuit
– 45 –
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Table of contents
- 7 General Specifications
- 9 External Appearance and Composition
- 10 EDS Mode Settings
- 12 Parallel Interface
- 13 Serial Interface (option)
- 15 EE-PROM Mode
- 47 Upper Case Unit
- 47 Control Panel Board
- 48 Printer Mechanism
- 48 Main Logic Board
- 49 Power Supply Unit
- 49 Fuses
- 50 Print Head
- 50 Carriage Motor Unit
- 51 Platen Unit
- 51 10. Tractor Unit
- 52 11. Paper Feed Motor Unit
- 69 Does not Operate at All with Power on
- 70 Power Supply Circuit Abnormal
- 71 Defective Motor Operation
- 72 Defective Print Head Operation
- 73 Defective Interface Operation
- 76 1-1. Disassembly Drawing
- 76 1-2. Parts List
- 79 2-1. Disassembly Drawing
- 80 2-2. Parts List
- 81 3-1. Lower Case Unit
- 83 3-2. Upper Case Unit
- 84 3-3. Paper Feed Roller Unit
- 85 (Option)
- 86 3-5. Frame Unit
- 86 3-5-1. Disassembly Drawing
- 87 3-5-2. Parts List
- 88 3-6. Platen Unit
- 89 3-7. Tractor Unit
- 92 5-1. Circuit Diagram
- 96 5-2. Component Layout
- 100 5-3. Parts List
- 103 6-1. Circuit Diagram
- 104 6-2. Component Layout
- 104 6-3. Parts List
- 105 7. Control Panel Board
- 105 7-1. Circuit Diagram
- 106 7-2. Component Layout
- 106 7-3. Parts List
- 107 8-1. Circuit Diagram
- 108 8-2. Component Layout
- 109 8-3. Parts List
- 111 9-1. Wiring Scheme
- 112 9-2. I/F Board
- 112 9-2-1. Circuit Diagram
- 112 9-2-2. Component Layout
- 112 9-2-3. Parts List
- 113 9-3. CPU Board
- 113 9-3-1. Circuit Diagram
- 114 9-3-2. Component Layout
- 114 9-3-3. Parts List