Citizen PMU2300III, Service Manual

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PMU2300III Series Service Manual
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4-2. Mechanical Exploded Diagrams.......................................................................................46
4-2-1. PMU2300
III
Mechanism (SN Model, SB Model) ...............................................46
4-2-2. Bezel Assy (SB Model) ......................................................................................47
4-2-3. PMU2300
III
Mechanism (PN Model, PB Model) ...............................................48
4-2-4. Presenter Unit (PN Model, PB Model) ...............................................................49
4-2-5. Bezel Presenter (PB Model) ..............................................................................50
4-2-6. PHU-102S .........................................................................................................51
4-2-7. PHU-203T..........................................................................................................52
4-3. Parts Layout.....................................................................................................................53
4-3-1. Main Control Board (Serial Interface) ................................................................53
4-3-2. Main Control Board (Parallel Interface)..............................................................54
4-3-3. Main Control Board (USB Interface) ..................................................................55
5. CIRCUIT DIAGRAMS.............................................................................56
5-1. Main Control Board (Common Section around CPU).......................................................56
5-2. Main Control Board (Port Expansion Circuit) ...................................................................57
5-3. Main Control Board (Other Common Section) .................................................................58
5-4. Main Control Board (Interface: Serial/USB) .....................................................................59
5-5. Main Control Board (Interface: Parallel)...........................................................................60
5-6. Option (Presenter, Bezel).................................................................................................61
6. Supplementary Information ....................................................................62
6-1. Self-printing......................................................................................................................62
6-2. Hex-dump Mode ..............................................................................................................63
6-3. Memory Switch Setting Mode ..........................................................................................64
6-4. Updating the Firmware.....................................................................................................65