Casio PA2500U Service Manual

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Handheld Personal Computer

PA-2500U(PX-675)

FEB. 1998

PA-2500U

CONTENTS

HARDWARE SPECIFICATIONS -------------------------------------------------------------- 1

General Specifications------------------------------------------------------------------- 1

Electrical Specifications-----------------------------------------------------------------2 ACCESSORIES ------------------------------------------------------------------------------------ 3 OPTIONS--------------------------------------------------------------------------------------------- 3 SYSTEM CONFIGURATION-------------------------------------------------------------------- 4 GENERAL GUIDE ---------------------------------------------------------------------------------5 ADJUSTING DISPLAY CONTRAST --------------------------------------------------------- 6 DESKTOP COMPUTER SYSTEM CONFIGURATION ---------------------------------- 7 SETTING UP ----------------------------------------------------------------------------------------7 REPLACING BATTERIES----------------------------------------------------------------------- 9

To replace the main batteries----------------------------------------------------------9

To replace the backup battery------------------------------------------------------- 10 RESET ---------------------------------------------------------------------------------------------- 11

To reset the CASSIOPEIA------------------------------------------------------------- 11 FULL RESET-------------------------------------------------------------------------------------- 12

To perform a full reset ----------------------------------------------------------------- 12 CONNECTING TO A DESKTOP COMPUTER------------------------------------------- 13

To connect to a desktop computer ------------------------------------------------ 13 REPLACING THE PC CARD ----------------------------------------------------------------- 14

To replace the PC card----------------------------------------------------------------- 14 REPLACING THE COMPACTFLASH CARD -------------------------------------------- 15

To replace the CompactFlash card ------------------------------------------------ 15 CONNECTING TO EXTERNAL EQUIPMENT ------------------------------------------- 16

To connect external equipment----------------------------------------------------- 16 MEMORY BACKUP / RESTORE ------------------------------------------------------------ 17

Backup -------------------------------------------------------------------------------------- 17

Restore-------------------------------------------------------------------------------------- 19 BLOCK DIAGRAM ------------------------------------------------------------------------------ 21 DEVICE FEATURES ---------------------------------------------------------------------------- 22 LSI/IC DATA -------------------------------------------------------------------------------------- 24

SH-7093 (CPU / IC1)--------------------------------------------------------------------- 24

MB87A915 (Gate Array/IC3) ---------------------------------------------------------- 27

MC34119 (IC9)----------------------------------------------------------------------------- 32

MAX3241CAI (IC5) ----------------------------------------------------------------------- 32

UPD42S16160LG5 ----------------------------------------------------------------------- 33

RN5VD18CA (IC113) -------------------------------------------------------------------- 33

XC61A Series (IC100 ~ IC103,IC107,IC109,IC110,IC112) -------------------- 33

MAX608 (IC105,IC106)------------------------------------------------------------------ 34

EMI FILTER ARRAY--------------------------------------------------------------------- 34

UPD23C32000LGY----------------------------------------------------------------------- 34

POWER SUPPLY CIRCUIT ------------------------------------------------------------------- 35

Primary Circuit---------------------------------------------------------------------------- 35

5 V Circuit ---------------------------------------------------------------------------------- 36

3 V Circuit ---------------------------------------------------------------------------------- 37

PCMCIA Circuit--------------------------------------------------------------------------- 38

LCD power Circuit----------------------------------------------------------------------- 39

Voltage Line ------------------------------------------------------------------------------- 40 DETECTOR CIRCUIT--------------------------------------------------------------------------- 41 DIAGNOSTIC PROGRAM--------------------------------------------------------------------- 42

Introduction-------------------------------------------------------------------------------- 42 OPERATION CHECK--------------------------------------------------------------------------- 43

IrDA Communication Test ------------------------------------------------------------ 48

Current Consumption and Voltage Detectors Check------------------------ 50

Voltage Detectors Check-------------------------------------------------------------- 52 DISASSEMBLY • ASSEMBLY --------------------------------------------------------------- 54

1.Module ------------------------------------------------------------------------------------ 54

2.Upper case ass’y ---------------------------------------------------------------------- 55

3.Removal of touch panel and LCD unit ----------------------------------------- 57

4.Precautions when installing LCD unit------------------------------------------ 60

5.Installation of shaft piece----------------------------------------------------------- 61

6.How to pass FPC through the upper case------------------------------------ 62

7.Precautions when assembling---------------------------------------------------- 63 EXPLOED VIEW --------------------------------------------------------------------------------- 65 PARTS LIST--------------------------------------------------------------------------------------- 66 WIRING DIAGRAM------------------------------------------------------------------------------ 68 PCB VIEW ----------------------------------------------------------------------------------------- 69 SCHEMATIC DIAGRAMS --------------------------------------------------------------------- 70

Z340-1 PCB 1/3 (MAIN)----------------------------------------------------------------- 70 Z340-1 PCB 2/3 (POWER SUPPLY) ------------------------------------------------ 71 Z340-1 PCB 3/3 (DP I/F BLOCK)----------------------------------------------------- 72 Z370-ROM PCB (ROM) ----------------------------------------------------------------- 73 Z340-DPMI PCB (MIC) ------------------------------------------------------------------ 74 Z340-LED PCB (LED) ------------------------------------------------------------------- 75 KEY MATRIX------------------------------------------------------------------------------- 76

* Windows is a registered trademark of Microsoft Corporation in the U.S.A. and other countries. * i486DX and Pentium are registered trademarks of Intel Corporation.

HARDWARE SPECIFICATIONS

General Specifications

Model: PA-2500U Display: 640 × 240 dots/0.24 dot pitch, FSTN LCD, 4 grayscale monochrome CPU: SH3

Memory RAM: 8M bytes

ROM: 8M bytes Speaker: Sound Interfaces: RS-232C: 115.2K BPS

Data communication jack PC card slot CompactFlash card slot Infrared port (IrDA compatible protocol)

Communication distance: 10 to 70 cm Maximum Speed: 115.2K BPS

Power Supply: Main

Two AA-size alkaline batteries LR6 (AM3);rechargeable battery pack(A-B10LT); AC adaptor (AD-C50200)

Back-up

One CR2032 lithium battery

Power Consumption: 3.0 W Battery Life: Main

Two AA-size alkaline batteries: 25 hours (in Word, continuous cycle of oneminute input and 10-minutes input standby), 10 hours (input of 90 characters per minutes in Word) Rechargeable battery pack: 15 hours (in Word, continuous cycle of one-minute input and 10-minutes input standby), 10 hours (input of 90 characters per minutes in Word) * Main Battery life is shortened considerably by use of a modem card or any

other high power consumption PC card.

Back-up

5 year (when main battery is replaced immediately after appearance of low battery message) 1 month (when unit is left without a main battery)

Operating Temperature: 0 °C to 40 °C (32 °F to 104 °F) Dimensions (excluding projections):

Folded: 24.5H × 185W × 94D mm (1"H × 7-1/4"W × 3-11/16"D) Weight: 430 g (15.2 oz) including batteries

— 1 —

Electrical Specifications

Current Consumption (V-in: 2.6 V ± 0.1 V, LCD Contrast VR: MID.):

Main Battery: Diagnostics Program with alkaline batteries

80 MHz: 650 mA or under Sleep: 50 mA or under Standby: 1.4 mA or under

Back-up Battery: OFF: 450 µA Voltage Detectors:

VDET1: 2.0 V ± 1% V or under (Low battery message detector for alkaline batteries) VDET2: 1.6 V ± 1% V or under (Foced power off detector for alkaline batteries) VDET1R: 3.3 V ± 2% V or under (Low battery message detector for rechargeable battery) VDET2R: 3.0 V ± 2% V or under (Foced power off detector for rechargeable battery) VDETS: 2.7 V ± 1% V or under (Low battery message detector for back-up battery)

IrDA:

No. Length (L) Angle (A)

1 L = 80 cm A = ±15 degree 2 L = 10 cm A = 0 degree

PA-2500U

— 2 —

ACCESSORIES

• Stylus • Dummy Card • RS-232C Cable

The stylus is inserted into the CASSIOPEIA.

• CD-ROM

• AC Adapter

*The actual configuration of the AC adapter may differ from that shown in the above illustration.

• Manuals (Hardware Manual, User’s Guide)

The dummy card is inserted in the CASSIOPEIA.

• Rechargeable Battery Pack

OPTIONS

• Cradle PA-2010 IFS

Data Communication Cable SB-62

This cable is used to connect a digital camera or other external equipment to the PA-2500U.

Note: Optional materials are sold separately.

— 3 —

SYSTEM CONFIGURATION

Note that CASSIOPEIA will not operate under AC adapter power alone if its main batteries are not loaded.

AC adapter

CASIO Digital Camera

Data communication cable (SB-62)

Infrared port

CompactFlash Card

PC Card

CD-ROM

RS-232C Cable

Printer

Converter

Desktop Computer

Important

If you have a notebook PC with IrDA capabilities or a built-in modem, its COM port may not be set up for use as a standard serial interface. In such a case, you must change the COM port settings so it can be used as a standard serial interface. You should also check which COM ports are enabled on a desktop PC before starting to install Windows CE Services. See the documentation that comes with your PC for details.

CASSIOPEIA Desktop Computer Printer

Connection to a desktop computer is quick and easy using the optional cradle.

— 4 —

GENERAL GUIDE

• Touch screen

Displays text data and operational indicators, as well as icons that can be operated using the stylus.

• Speaker

Outputs alarm tones and other sounds.

• Infrared port

For infrared communication

• Data communication jack

For connection of a digital camera or other external equipment.

• Keyboard

• Card slot (CompactFlash card)

• Fn (Function) key

Pressing this key and then a number key launches Calendar, Contacts, Tasks, Pocket Word, Pocket Excel, Pocket Power Point or Inbox.

• Microphone

For voice and other sound recording.

• Card eject button (PC card)

Press to eject the card from the card slot.

• Card slot (PC card)

• Backlight button

Press to turn the backlight on and off. The backlight also turns off automatically if you do not perform any key or stylus operation within a certain amount of time.

Light

To remove: Pull on the part of the stylus

that protrudes from the unit.

To replace: Taking care to orient the stylus

correctly, press it until it clicks into place.

• Stylus

For performing operations on the touch screen.

Important

Take care to avoid damaging or losing the stylus.

RESET

• Reset button

See page 11.

• Power button

Press to turn power on and off.

— 5 —

• Battery holder

Holds main batteries (AA-size alkaline).

• Indicator clear button

Clears a warning indicator (red) and alarm operation. Pressing this button also turns on power. Power can be turned off only by pressing the power button.

• Battery holder release

Slide to release the battery holder to remove it, or to secure the battery holder in place.

• Backup battery compartment

Holds the backup battery (CR2032).

• Card cover (CompactFlash card)

• Indicator (red)

Flashes to indicate the preset alarm time has been reached, or to indicate an operational condition of the application being used.

• Charge indicator (green)

Indicates that charging is in progress.

• AC adapter jack

For connection of the AC adapter.

• RS-232C/Cradle connector

For connection of an RS-232C cable or cradle.

ADJUSTING DISPLAY CONTRAST

Adjust display contrast whenever the figures on the display become dim and difficult to see. To adjust display contrast, hold down [Alt] and press [<] (to make the display lighter) or [>] (to make the display darker).

— 6 —

DESKTOP COMPUTER SYSTEM CONFIGURATION

The computer configuration described below is required to support the installer and the software applications contained on the Microsoft CD-ROM supplied with the CASSIOPEIA.

• Microsoft Windows NT Workstation 4.0 or Windows 95 (U.S. version)

• Desktop computer with a 486/33DX or higher processor (Pentium P90 recommended)

• 12 MB of memory for Windows NT Workstation 4.0

8 MB of memory (12 MB recommended) for Windows 95

• Hard disk drive with 10 to 50 MB of available hard disk space (actual requirements will vary based on selection of features and user’s current system configuration)

• Available 9 or 25 pin communications port (adapter required for 25 pin communication port)

• One CD-ROM drive

• VGA or higher-resolution graphics card (Super VGA 256-color recommended)

• Keyboard

• Microsoft Mouse or compatible pointing device

Options for either Windows NT Workstation 4.0 or Windows 95:

• Audio card/speakers for sound

• Microsoft Office 97 or Microsoft Office 95

• Serial or built-in infrared adapter for synchronization

• Modem for remote synchronization

• Ethernet LAN connection for remote synchronization

Important

• If you have a notebook PC with IrDA capabilities or a built-in modem, its COM port may not be set up for

use as a standard serial interface. In such a case, you must change the COM port settings so it can be used as a standard serial interface. You should also check which COM ports are enabled on a desktop PC before starting to install Windows CE Services. See the documentation that comes with your PC for details.

Note: Some of the applications contained on the CASSIOPEIA Bonus Software Applications

CD-ROM may require a system configuration different from that described above. See the applicable files (ReadMe.txt and other files) that are also provided on the CD-ROM.

SETTING UP

Use the following procedure to set up the CASSIOPEIA before using it for the first time.

1. Load the main batteries.

• Load two AA-size alkaline batteries into the battery holder and then attach the holder to the CASSIOPEIA (page 9).

2. Load the backup battery (page 10)

3. Wait for about five seconds, and then press the power switch to turn on power.

• Turning on power causes the CASSIOPEIA display to change in the sequence shown below.

Start up

screen

4. Set up the CASSIOPEIA .

• Perform the procedures in accordance with the guidance messages that appear on the screen.

Set up

screens

— 7 —

Important

• Should the display lock up or go blank at this time, first perform the full reset (page 12). If this does not

correct the problem, remove the main batteries from the CASSIOPEIA and then remove the back-up battery. Wait for about five minutes, and then perform this procedure again, starting from step 1. Be sure that the positive (+) and negative (–) poles of the batteries are facing correctly when you reload them into the CASSIOPEIA.

• If the message “A problem with memory contents has been found, and memory must be initialized...” appears, perform the full reset operation described on page 12.

• If the images on the display appear dim, use the procedure on page 6 to adjust the contrast.

• Further information on the above procedures can be found in the H/PC Companion manual in the section describing system set up.

— 8 —

REPLACING BATTERIES

The CASSIOPEIA has a dual power supply that consists of main batteries and a backup battery. Be sure to load the main batteries and a back-up battery before using the CASSIOPEIA for the first time after purchasing it. Also, replace batteries as soon as possible after they start to get weak.

Important!

• Never remove both the main batteries and the backup battery from the CASSIOPEIA at the same time. If you do, data stored in memory can be corrupted or lost entirely.

• Whenever the main batteries and the backup battery both require replacement, be sure to replace the main batteries first, before replacing the backup battery.

• Use two AA-size alkaline batteries or the optional rechargeable battery pack for the main power supply, and a CR2032 lithium battery for the back-up power supply. Never use any other types of battery with the CASSIOPEIA.

• Be sure to watch out for signs of low battery power. Replace main batteries as soon as possible after the message shown below appears on the display. “Your main batteries are running very low on power. Please change the batteries at your next opportunity.”

Replace the backup battery as soon as possible after the message shown below appears. “Your backup battery is very low or missing. Data loss may result from failure to replace the battery very soon.”

Failure to replace batteries when they are low can result in corruption or loss of data stored in memory.

To replace the main batteries

1. Make sure the CASSIOPEIA is turned off.

• If the CASSIOPEIA is on, press the power switch to turn it off.

2. Close the CASSIOPEIA and turn it over.

3. While holding the battery holder release in the “FREE” position, slide the battery holder from the CASSIOPEIA.

• While holding the battery holder release in position, grasp the center of the battery holder and carefully pull it from the CASSIOPEIA.

4. Remove the old batteries from the battery holder and load two new ones.

• When loading new batteries, make sure that their positive (+) and negative (–) ends are facing correctly.

— 9 —

5. Reattach the battery holder to the CASSIOPEIA.

• The battery holder will emit a click and the battery holder release will automatically lock when the battery holder is securely in place.

To replace the backup battery

1. Make sure the CASSIOPEIA is turned off.

• If the CASSIOPEIA is on, press the power switch to turn it off.

2. Close the CASSIOPEIA and turn it over.

3. While pressing the release A with the stylus, slide the backup battery cover from the CASSIOPEIA.

4. Remove the old battery.

5. After wiping the surface of a new battery with a soft, dry cloth, load it into the CASSIOPEIA with its positive (+) side facing up (so you can see it).

6. Slide the backup battery cover back on to the CASSIOPEIA until it snaps securely into place.

Important!

Failure to observe any of the following battery precautions can cause batteries to leak, creating the danger of property damage, iniury and fire due to explosion.

• When loading batteries,make sure their positive (+) and negative (–) poles are facing correctly.

• Never mix new batteries with old ones.

• Never mix batteries of different types.

• Use only the batteries that are specifically recommended for the CASSIOPEIA.

— 10 —

RESET

You should reset the CASSIOPEIA whenever it stops working or whenever some other operational problem has caused it to malfunction.

To reset the CASSIOPEIA

1. Press the RESET button with the stylus.

• This automatically turns off CASSIOPEIA power.

2. Press the power switch to turn on power and start the reset process.

• What happens next depends on memory status.

Case A: Memory Contents Not Corrupted

In this case, the display changes in the sequence shown below.

Start up

screen

Normal operation is restored after the desktop appears, with all memory contents and settings unchanged.

Nomal

Desktop

Case B: Memory Contents Corrupted

In this case, the message “A problem with memory contents has been found, and memory must be initialized...” appears on the screen. Use the stylus to touch the screen to change in the sequence shown below.

Start up

screen

Set up the CASSIOPEIA as described on page 7 of this manual. The desktop appears after set up is complete.

When memory is seriously corrupted, the above procedure deletes all data stored in memory. When memory contents are not deleted*, save any data you need onto a computer disk or other medium and then perform the full reset procedure on page 12.

*Data may be corrupted, so edit data after checking it.

Set up

screens

— 11 —

FULL RESET

Perform the full reset when you want to clear all memory contents and settings because memory contents are corrupted, because you have forgotten the security code, or for any other reason.

Important

The following procedure deletes all data in memory. Be sure to save any important data contents you may need later to a computer disk or other medium. Always keep separate back-up copies of important data.

To perform a full reset

1. While holding down the [Ctrl] key and the [Alt] key, press the RESET button.

RESET button

[Ctrl] key

[Alt] key

2. The message “All memory contents will be deleted! Touch the screen to continue...” appears on the display.

• If you don’t want to perform a full reset, press the RESET button. This performs the normal reset, which does not clear memory contents.

3. To continue with the full reset procedure and clear all memory contents, touch the screen with the stylus.

• The display changes in the sequence shown below.

Start up

screen

Set up

screens

• Set up the CASSIOPEIA as described on page 7 of this manual.

— 12 —

CONNECTING TO A DESKTOP COMPUTER

Use the following procedure to connect the CASSIOPEIA to a desktop computer. Note that exchanging data with a desktop computer requires Microsoft Windows CE Services, which is on the Microsoft CD-ROM that is included with the CASSIOPEIA.

Requirements

RS-232C cable (supplied with CASSIOPEIA)

To connect to a desktop computer

1. Open the RS-232C connector cover on the side of the CASSIOPEIA.

2. Slide the cover into the CASSIOPEIA case as shown below.

3. Use the RS-232C cable to connect the CASSIOPEIA to your desktop computer.

• You can also connect the CASSIOPEIA to your computer using the cradle. See the documentation that comes with the cradle for details.

• If your desktop computer supports infrared communications, you can also use CASSIOPEIA’s infrared port to exchange data.

— 13 —

REPLACING THE PC CARD

The CASSIOPEIA comes equipped with a PC card slot that supports memory, modem and other PC cards*. * Use only PC cards that are compatible with the CASSIOPEIA.

Important

• Be sure to keep the dummy card that comes with the CASSIOPEIA inserted in the card slot whenever

you are not using a PC card.

• Be sure to save any unsaved input or edited data before replacing the PC card.

• Never remove the PC card from the CASSIOPEIA while a PC card operation is in progress. Doing so

can corrupt CASSIOPEIA memory and PC card memory.

To replace the PC card

1. Extend the card eject button.

2. Press the card eject button to partially eject the card, and then pull the card out of the slot.

3. Insert a new PC card into the slot.

• Push the card into the slot as far as it will go.

Important

• Take care to orient the card correctly. The top of the card should be facing in the same direction as the

top of the CASSIOPEIA. The card will stop part way into the slot if it is not oriented correctly.

• If the card stops part way into the slot, do not try to force it. Doing so can damage the card or the CASSIOPEIA. Remove the card, make sure it is oriented correctly, and then try inserting it again.

4. Return the card eject button back to its folded position.

Important

• See the documentation that comes with the PC card and the H/PC Companion manual for information

on PC card operations.

— 14 —

REPLACING THE COMPACTFLASH CARD

The CASSIOPEIA comes equipped with a card slot that supports CompactFlash cards.

Important

• If the card stops part way into the slot, do not try to force it. Doing so can damage the card or the

CASSIOPEIA. Remove the card, make sure it is oriented correctly, and then try inserting it again.

• Be sure to save any unsaved input or edited data before replacing the CompactFlash card.

To replace the CompactFlash card

1. Make sure that CASSIOPEIA power is turned off.

2. While pressing down on the card cover 1, slide the cover from the CASSIOPEIA 2.

3. Press the card eject button to partially eject the card, and then pull the card out of the slot.

4. Insert a new CompactFlash card into the slot.

• Double-check to make sure that the card is oriented correctly before you insert it into the slot.

Back of card

• Push the card into the slot as far as it will go.

Important

• Take care to orient the card correctly. The top of the card should be facing in the same direction as the

top of the CASSIOPEIA. The card will stop part way into the slot if it is not oriented correctly.

5. Replace the card cover.

Important

• In order to protect data stored in memory, the CASSIOPEIA automatically turns off whenever you re-

move the card cover. Also, power will not turn on while the cover is removed.

— 15 —

CONNECTING TO EXTERNAL EQUIPMENT

You can connect external equipment to the data communication connector. You can also use special software to set up the CASSIOPEIA to exchange image data with a CASIO digital camera. See the documentation that comes with the software for details.

Requirements

Optional data communication cable (SB-62)

To connect external equipment

1. Make sure the external equipment and CASSIOPEIA are both turned off.

2. Use the SB-62 cable to connect the CASSIOPEIA to the external equipment.

— 16 —

MEMORY BACKUP / RESTORE

Make the backup copy by Windows CE Services to your PC before repairing PA-2500U, and restore the data from PC to user’s PA-2500U after repairing. For the details of Backup/Restore, refer to the operation manual of Windows CE Services.

Notes: 1* Backup program of Windows CE Services back up only files and databases. Setup data

including Owner, World Clock and so on, can not be backed up to PC.

2* Use AC adaptor when making backup copy and restoring.

Backup

1. Connect user’s PA-2500U to your PC with RS-232C cable.

2. Start Windows CE Services on your PC.

3. Windows CE Services detects PA-2500U is connected automatically.

4. PC shows the following dialog and click “Guest”.

5. Select “Backup/Restore...” from “Tools” pop up menu.

— 17 —

6. Click “Full: back up all data” and “Back Up Now”.

7. Confirm the file name of bakup copy and then click “OK”. Backup starts.

— 18 —

Restore

Execute Restore after repairing.

1. Turn on the user’s PA-2500U and then Welcome wizard appears.

2. Execute touch panel calibration and then skip other setups after calibration.

3. Connect repaired PA-2500U to your PC with RS-232C cable.

4. Start Windows CE Services on your PC.

5. Click “Restore” and confirm the file name backed up. Then click “OK”.

6. Click “Restore”.

— 19 —

7. Restoring starts.

8. Click “OK”.

— 20 —

BLOCK DIAGRAM

CompactFlash

Card

PCMCIA

Card

10 M 32.768 K

PLL X4

80 MHz

CPU

SH-7093 (IC1)

RAM 8 Mbyte

HM51W16165

(RAM5~RAM8)

ROM 8Mbyte

Memory Slot

(U301~U305)

Audio Amp.

MC34119

(IC9)

Mini Jack

IrDA

RS232C

Connector

+3.3 V +5 V LCD Power

IrDA Transceiver

CIM-10S

(IC4)

RS232C Transceiver

MAX3241

(IC5)

Power Supply

Circuit

Gate Array

MB87A915 (IC3)

Keyboard

ACL Voltage Detector

3.68M

LCD unit

LCD

Indicator (Red) LED

Charge Indicator (Green) LED

EL Driver

Touch Panel

HV803

(IC801)

MIC

AAX2

Alkaline

Li-ion

Recharger

CR2032

— 21 —

DEVICE FEATURES

Device Features

CPU SH-7093 (IC1)

Hitachi 32 bit RISC CPU. Sleep/Standby Power Mode. TLB supports 1K/4K bytes page,128 entries. 8K bytes Cash. Interrupt Controller. User Break Controller. Bus State Controller. Watch Dog Timer. CASIO proprietary RTC. 2K bytes Mask ROM. ON Controller. 1 ch Serial I/F. 1 ch Serial I/F with 16 bytes FIFO. 1 channel Reload Timer. 2 channel Free Run Timer.

System RAM HM51W16165 (RAM5~RAM8)

8M bytes DRAM (16M bit DRAM 4K refresh)

ROM 8M bytes Mask ROM (32 bit Mask ROM) Memory Slot Z370-ROM PCB

Connects to memory board with ROM. This connects a development board as well.

System LSI MB87A915 (IC3)

LCD Controller. System Controller. DRAM Access Controller. Interrupt Controller. Key Controller. Audio Controller. DMA Controller. Dead Man’s Switch. Touch Panel Controller. Infra Red Controller. RS232C I/F Controller. IrDA I/F Controller. 3-pin I/F Controller. LED Controller. PCMCIA Controller. CompactFlash Controller.

LCD 4 gray levels

480 × 240, landscape

0.24 mm/pitch

LCD Driver 2 × 120 ch common driver.

3 × 160 ch segment driver with SRAM and disply control logic.

Touch Panel Resistive input device at the screen pixel resolution.

Just fitting to LCD panel. Controller in System LSI.

— 22 —

Device Features

Touch Panel A/D 10 bit analog to digital converter in System LSI. Audio D/A 10 bit digital to analog converter in System LSI.

8/11.025/22.05 kHz sampling.

Audio A/D 10 bit analog to digital converter in System LSI.

8/11.025/22.05 kHz sampling.

Speaker 20 mm dynamic type. PCMCIA One slot for PCMCIA Type I/II card.

Compliance with PCMCIA ver.2.1.

IrDA / RS232C Serial I/F with 16 byte FIFO in CPU. (alternative) 115.2 kbaud.

IrDA 0 - 1 m. 9-pin RS232C ±12 V I/F.

3-pin Serial Port CASIO proprietary serial interface to Casio’s digital cameras and electric orga-

nizerand so on. Up to 38.4 kbaud. 0 to +5 V I/F.

Dead Man’s Switch ‘Manual Reset’ occurs each 15 seconds when the CPU does’t reset the counter. Notification LED LED Controller in System LSI. Notification Button Independent switch. LCD Contrast LCD Contrast is able to be handled by the software using electric volume and

LCD panel driver function.

Keyboard 56 keys and independent ‘Ctrl’,‘Alt’,‘Right Shift’,‘Caps Shift’,‘Alt-Graph’,‘Fn

(means Function: CASIO original)’and “Windows”. ‘ON’ key is an independent key.

ACL Automatic hard reset for first time. “Power ON Reset” occurs in case of ACL. Reset Mechanism ‘Manual Reset’ occurs when user pushes ‘Reset Switch’.

‘Power ON Reset’ occurs when user push ‘Reset Switch’ with pressing ‘Notification Switch’.

Battery Cover Detector Detects both open and closed. Battery Detector Detects Alkaline or NiMH. Voltage Detector 5 levels with Alkaline / NiMH and 1 level with backup battery. Battery Alkaline AA × 2.

NiMH. AC adapter.

Power Supply 3.3 V for most hardware logic.

5 V for PCMCIA and 3-pin serial interface. 24 V for LCD panel driver.

— 23 —

LSI/IC DATA

SH-7093 (CPU / IC1)

No. Pin Name Io/Out Function To/From

1 D27 I/O Data bus 2 D26 I/O Data bus 3 D25 I/O Data bus 4 D24 I/O Data bus 5 D23/Port 7 I/O Data bus 6 Vss GND 7 V c c +3.3V source 8 D22/Port 6 I/O Data bus

9 D21/Port 5 I/O Data bus 10 D20/Port 4 I/O Data bus 11 D19/Port 3 I/O Data bus 12 D18/Port 2 I/O Data bus 13 D17/Port 1 I/O Data bus 14 D16/Port 0 I/O Data bus 15 D15 I/O Data bus 16 D14 I/O Data bus 17 Vss GND 18 V c c +3.3V source 19 Vss GND 20 V c c +3.3V source 21 D13 I/O Data bus 22 D12 I/O Data bus 23 D11 I/O Data bus 24 D10 I/O Data bus 25 D9 I/O Data bus 26 D8 I/O Data bus 27 D7 I/O Data bus 28 D6 I/O Data bus 29 D5 I/O Data bus 30 Vss GND 31 V c c +3.3V source 32 D4 I/O Data bus 33 D3 I/O Data bus 34 D2 I/O Data bus 35 D1 I/O Data bus 36 D0 I/O Data bus 37 A0 O Address bus 38 A1 O Address bus 39 A2 O Address bus 40 A3 O Address bus 41 Vss GND 42 V c c +3.3V source 43 A4 O Address bus 44 A5 O Address bus 45 A6 O Address bus 46 A7 O Address bus 47 A8 O Address bus 48 A9 O Address bus 49 Vss GND 50 V c c +3.3V source 51 A10 O Address bus 52 A11 O Address bus 53 A12 O Address bus 54 Vss GND 55 V c c +3.3V source 56 A13 O Address bus 57 A14 O Address bus

— 24 —

No. Pin Name Io/Out Function To/From

58 A15 O Address bus 59 Vss GND 60 V c c +3.3V source 61 A16 O Address bus 62 A17 O Address bus 63 A18 O Address bus 64 A19 O Address bus 65 A20 O Address bus 66 A21 O Address bus 67 A22 O Address bus 68 Vss GND 69 V c c +3.3V source 70 A23 O Address bus 71 A24 O Address bus 72 A25 O Address bus 73 Vss (PLL) GND for PLL 74 CAP1 O Capacitor connecting terminal for PLL 75 Vcc (PLL) 76 Vss GND 77 ONENB I ON Circuit enable signal BGA288 78 V c c +3.3V source 79 EXTAL I Oscillator in (10MHz) X2 80 XTAL O Oscillator out (10MHz) X2 81 TESTMDB I Test mode control GND 82 Vss GND 83 V c c +3.3V source 84 MD2 / RXD0 I Data input of serial port 0 BGA288 85 MD1 / TXD0 I/O Data output of serial port 0 BGA288 86 MD0 / SCK0 I/O Not used 87 BREQB I Bus request BGA288 88 RESETB I Reset signal from BGA288 BGA288 89 NMI I Non-maskable Interrupt request BGA288 90 IRL3B I Interrupt request BGA288 91 RXD1 I Data input of serial port 1 IC5(RS232C),BGA288 92 TXD1 O Data output of serial port 1 IC5(RS232C),BGA288 93 SCK1 I/O Clock of serial port 1 BGA288 94 CTS1 I Serial port 1 transmission permission IC5(RS232C) 95 RTS1 O Serial port 1 transmission request IC5(RS232C) 96 BACKB O Bus access permission BGA288 97 IOIS16B I Write protect input BGA288 98 STATUS0 O 99 ONSTATUSB O V3ROM (+3.3V) ON/OFF control. H=ON BGA288,Power supply unit

100 Vs s GND 101 CKIO I/ O System clock I/O BGA288 102 V c c +3.3V source 103 MD4 / CE2BB I/O PCMCIA CE2B signal BGA288 104 MD3 / CE2AB I/O PCMCIA CE2A signal BGA288 105 ONB I On circuit start request BGA288 106 RD / W R B O Read/Write signal BGA288,RAM,ROM 107 RDB O Read pulse BGA288,ROM,LCD unit 108 CS6B / CE1BB O Chip select-6 sigmal BGA288 109 CS5B / CE1AB O Chip select-5 sigmal BGA288 110 CS4B O Chip select-4 sigmal BGA288,ROM Board 111 CS3B O Not used 112 CS2B O Chip select-2 sigmal BGA288 113 CS1B O Chip select-1 sigmal ROM Board 114 CS0B O Chip select-0 sigmal ROM Board 115 Vss GND 116 V c c +3.3V source 117 WE3B / ICIOWRB O D31-D24 select signal / IO Write BGA288 118 WE2B / ICIORDB O D23-D16 select signal / IO Read BGA288,ROM Board

+3.3V source for PLL

STATUS0 si

nal to BGA288

BGA288

— 25 —

No. Pin Name Io/Out Function To/From

119 CASHHB / CAS2HB O D31-D24 / D15-D8 select signal BGA288,ROM Board 120 CASHLB / CAS2LB O D23-D16 / D7-D0 select signal BGA288,ROM Board 121 Vs s GND 122 V c c +3.3V source 123 WE1B O D15-D8 select signal BGA288 124 WE0B O D7-D0 select signal BGA288,LCD uint,ROM Board 125 CASLHB O D15-D8 select signal BGA288,ROM Board 126 CASLLB / OEB O D7-D0 select / memory select signal BGA288,ROM Board 127 Vs s GND 128 V c c +3.3V source 129 RASB / CEB O CE signal for RAM,ROM BGA288,RAM,ROM Board 130 MD5 / RAS2B Not used 131 HSTBYB I Not used +3.3V source 132 WAITB I Hardware wait request BGA288 133 Vs s GND 134 RTCCLK O RTC clock output BGA288 135 Vcc(RTC) +3.3V source(for internal RTC) 136 XTAL2 O Oscillator terminal(for internal RTC) C6 137 EXTAL2 I Oscillator terminal(for internal RTC) C6 138 Vss(RTC) GND(for internal RTC) 139 V c c +3.3V source 140 D31 I/O Data bus 141 D30 I/O Data bus 142 D29 I/O Data bus 143 D28 I/O Data bus 144 Vss GND

— 26 —

MB87A915 (Gate Array/IC3)

No. Pin Name Volt Io/Out Function To/From

1 CFCE1B 3v O CE signal for CompactFlash card CompactFlash card

2 IOPORT0 3v I/O Not used

3 IOPORT1 3v I/O I/O Port 1 LCD unit

4 VSS GND

5 V5D3 5V I/O Data bus PCMCIA CARD

6 VS1 Voltage detect for PCMCIA PCMCIA CARD

7 V5D4 5V I/O Data bus PCMCIA CARD

8 V5D11 5V I/O Data bus PCMCIA CARD

9 CD1B I PCMCIA CARD detect PCMCIA CARD 10 V5D5 5V I/O Data bus PCMCIA CARD 11 VDD1 5V +5V source 12 V5CE2B 5V O CE2 signal for PCMCIA CARD PCMCIA CARD 13 V5D12 5V I/O Data bus PCMCIA CARD 14 V5D6 5V I/O Data bus PCMCIA CARD 15 V5D13 5V I/O Data bus PCMCIA CARD 16 V5CE1B 5V O CE1 signal for PCMCIA CARD PCMCIA CARD 17 V5A10 5V O Address bus PCMCIA CARD 18 V5OEB 5V O OE signal for PCMCIA CARD PCMCIA CARD 19 V5A11 5V O Address bus PCMCIA CARD 20 VSS GND 21 VDD1 5V +5V source 22 VSS GND 23 V5IORDB 5V O IORD signal for PCMCIA CARD PCMCIA CARD 24 V5A9 5V O Address bus PCMCIA CARD 25 V5IOWRB 5V O IOWR signal for PCMCIA CARD PCMCIA CARD 26 V5A8 5V O Address bus PCMCIA CARD 27 V5A17 5V O Address bus PCMCIA CARD 28 V5A13 5V O Address bus PCMCIA CARD 29 V5A18 5V O Address bus PCMCIA CARD 30 V5A14 5V O Address bus PCMCIA CARD 31 VDD1 5V +5V source 32 V5A19 5V O Address bus PCMCIA CARD 33 V5WEB 5V O WE signal for PCMCIA CARD PCMCIA CARD 34 V5A20 5V O Address bus PCMCIA CARD 35 V5A21 5V O Address bus PCMCIA CARD 36 V5A16 5V O Address bus PCMCIA CARD 37 VSS GND 38 V5A22 5V O Address bus PCMCIA CARD 39 V5A15 5V O Address bus PCMCIA CARD 40 VDD1 5V +5V source 41 V5A23 5V O Address bus PCMCIA CARD 42 V5A12 5V O Address bus PCMCIA CARD 43 V5A24 5V O Address bus PCMCIA CARD 44 V5A7 5V O Address bus PCMCIA CARD 45 VDD1 5V +5V source 46 VSS GND 47 V5A25 5V O Address bus PCMCIA CARD 48 V5A6 5V O Address bus PCMCIA CARD 49 V5A5 5V O Address bus PCMCIA CARD 50 V5RESET 5V O Reset signal for PCMCIA CARD PCMCIA CARD 51 V5A4 5V O Address bus PCMCIA CARD 52 V5A3 5V O Address bus PCMCIA CARD 53 V5A2 5V O Address bus PCMCIA CARD 54 V5REGB 5V O 55 VDD1 5V +5V source 56 V5D7 5V I/O Data bus PCMCIA CARD 57 V5D14 5V I/O Data bus PCMCIA CARD 58 V5A1 5V O Address bus PCMCIA CARD 59 V5D15 5V I/O Data bus PCMCIA CARD

Attribute memor

select

PCMCIA CARD

— 27 —

No. Pin Name Volt Io/Out Function To/From

60 V5D0 5V I/O Data bus PCMCIA CARD 61 V5A0 5V O Address bus PCMCIA CARD 62 VDD1 5V +5V source 63 V5D8 5V I/O Data bus PCMCIA CARD 64 V5D1 5V I/O Data bus PCMCIA CARD 65 V5D9 5V I/O Data bus PCMCIA CARD 66 V5BSYB 5V I Busy/Ready signal for PCMCIA CARD PCMCIA CARD 67 VSS GND 68 VSS GND 69 V5WAITB 5V I Wait signal for PCMCIA CARD PCMCIA CARD 70 V5D2 5V I/O Data bus PCMCIA CARD 71 V5INPACKB 5V I Input response PCMCIA CARD 72 V5D10 5V I/O Data bus PCMCIA CARD 73 V5BVD2 5V I Voltage detect for PCMCIA PCMCIA CARD,SP 74 LEDONB 3V O LED signal LCD unit 75 PIRB 3V O Voltage V5IRDA(3V) control Q123(Power) 76 V5BVD1 5V I Battery Detector PCMCIA CARD 77 V5IOIS16B 5V I Write protect PCMCIA CARD 78 IRTXD 3V O Infrared output IrDA 79 CD2B 3V I Card detect PCMCIA CARD 80 IRRXD 3V I Infrared input IrDA 81 VDD2 3V +3V source 82 VSS GND 83 DISPOFFB 3V O LCD off signal LCD unit 84 DISPCSB 3V O CE signal for LCD driver LCD unit 85 DISPRSTB 3V O Reset signal for LCD driner LCD unit 86 DISPWTB 3V I Wait signal from LCD driver LCD unit 87 IOPORT2 3V I/O Not used 88 PSW0 3V O Touch panel control Touch panel 89 PSW1 3V O Touch panel control Touch panel 90 PSW2 3V O Touch panel control Touch panel 91 PSW3 3V O Touch panel control Touch panel 92 PSW4 3V O Touch panel control Touch panel 93 FLSHRSTB 3V O Reset signal for Flash ROM board 94 PMUTE 3V O Audio mute signal Audio amp 95 PRECB 3V O Power supply control for recording circuit LCD unit 96 FUNKEYIN7 3V I Function input Keyboard 97 FUNKEYIN6 3V I Function input Keyboard 98 FUNKEYIN5 3V I Function input Keyboard 99 FUNKEYIN4 3V I Function input Keyboard

100 FUNKEYIN3 3V I Function input Keyboard 101 FUNKEYIN2 3V I Function input Keyboard 102 FUNKEYIN1 3V I Function input Keyboard 103 NC Not used 104 AVCC3 Analog I +3V source for D/A converter of audio +3V source 105 AUDIN Analog I Audio signal input for record LCD unit 106 AUDVRL Analog I Reference voltage for A/D,D/A converters 107 AUDOUT Analog O Audio signal output for play Audio amp 108 AUDVRH Analog I Reference voltage for A/D,D/A converters 109 AVCC2 Analog I +3V source for Touch panel +3V source 110 AGND2 Analog I Ground for Touch panel GND 111 AGND1 Analog I Analog ground GND 112 AVCC1 Analog I +3V source for D/A converter of audio +3V source 113 TCPIN2 Analog I Analog signal input from Touch panel Touch panel 114 VDETADIN Analog I Power detecting signal Power supply 115 TCPVRL Analog I Reference voltage for A/D converter of TP 116 TCPVRH Analog I Reference voltage for A/D converter of TP 117 TCPIN1 Analog I Analog signal input from Touch panel Touch panel 118 NC Not used 119 FUNKEYIN0 3V I Function input Keyboard 120 KBOUT8 3V O Key common signal Keyboard

— 28 —

No. Pin Name Volt Io/Out Function To/From

121 KBOUT7 3V O Key common signal Keyboard 122 KBOUT6 3V O Key common signal Keyboard 123 KBOUT5 3V O Key common signal Keyboard 124 KBOUT4 3V O Key common signal Keyboard 125 KBOUT3 3V O Key common signal Keyboard 126 KBOUT2 3V O Key common signal Keyboard 127 KBOUT1 3V O Key common signal Keyboard 128 KBOUT0 3V O Key common signal Keyboard 129 KBDIN0 3V I Key input signal Keyboard 130 KBDIN1 3V I Key input signal Keyboard 131 KBDIN2 3V I Key input signal Keyboard 132 KBDIN3 3V I Key input signal Keyboard 133 KBDIN4 3V I Key input signal Keyboard 134 KBDIN5 3V I Key input signal Keyboard 135 KBDIN6 3V I Key input signal Keyboard 136 VSS GND 137 KBDIN7 3V I Key input signal Keyboard 138 XCKIN Analog I Oscillator input(3.68MHz) X1 139 XCKOUT Analog I/ O Oscillator output(3.68MHz) X1 140 VDD2 3V +3V source 141 ONSWB 3V I ON switch signal Keyboard 142 PENPUTB 3V I Pen down status signal Touch panel 143 LEDOFFB 3V I LED cancel signal LCD unit (SW) 144 DOCKB 3V I Cradle detector RS232C 145 CHGDTCT 3V I Power supply 146 ACLB 3V I ACL signal at battery loaded. IC113(Power supply) 147 BCVRB 3V I Battery cover detecting port SW100 148 BATDTCT 3V I Alkaline/NiMH detecting port SW101 149 ACDTCTB 3V I AC adaptor detect port Q105 (Power supply) 150 VDETS 3V I Backup battery detecting signal Q119 (Power supply) 151 VDTC5B 3V I Alkaline battery detecting signal IC109 (Power supply) 152 VDTC3B 3V I Alkaline battery detecting signal IC110 (Power supply) 153 VDET3B 3V I Alkaline battery detecting signal IC107 (Power supply) 154 VDET2R 3V I NiMH detecting signal(Off) Q100 (Power supply) 155 VDET2 3V I Alkaline battery detecting signal(Off) Q103 (Power supply) 156 VDET1RB 3 V I NiMH detecting signal(Low Battery) IC101 (Power supply) 157 VDET1B 3V I Alkaline battery detecting signal(Low Battery) IC100 (Power supply) 158 PSEL5 3V O Power supply select signal for PCMCIA (3/5V) Q113 (Power supply) 159 PLCD 3V O LCD Voltage control signal Q201 (I/F Block) 160 PEL 3V O EL Voltage control signal Q116 (Power supply) 161 PDMMYS 3V O For backup battery detector IC115 (Power supply) 162 PDMMYM 3V O V3 system control signal Q112 (Power supply) 163 PCRD2 3V O VGA288 Voltage control signal Q118 (Power supply) 164 PCRD 3V O PCMCIA Voltage control signal Q117 (Power supply) 165 P5DCHG 3V O V5 Voltage control signal Q115 (Power supply) 166 P5V 3V O V5 Voltage control signal Q107,Q111 (Power supply) 167 P25ON 3V O LCD(+25V) Voltage control signal IC201 168 EVOLDAT 3V O Electronic volume (DAT) IC202 (EVOL) 169 EVOLDIR 3V O Electronic volume (DIR) IC202 (EVOL) 170 EVOLCS 3V O Electronic volume (CS) IC202 (EVOL) 171 EVOLCLK 3V O Electronic volume (CLK) IC202 (EVOL) 172 CAS1HUB 3V O CAS signal for DRAM DRAM 173 CAS1HLB 3V O CAS signal for DRAM DRAM 174 CAS1LUB 3V O CAS signal for DRAM DRAM 175 CAS1LLB 3V O CAS signal for DRAM DRAM 176 CAS0HUB 3V O CAS signal for DRAM DRAM 177 CAS0HLB 3V O CAS signal for DRAM DRAM 178 CAS0LUB 3V O CAS signal for DRAM DRAM 179 VSS GND 180 VDD2 3V +3V source 181 CAS0LLB 3V O CAS signal for DRAM DRAM

— 29 —

No. Pin Name Volt Io/Out Function To/From

182 LOCK 3V I Not used 183 MEMCLB 3V I Not used 184 A25 3V I Address bus 185 A24 3V I Address bus 186 A23 3V I / O Address bus 187 A22 3V I / O Address bus 188 A21 3V I / O Address bus 189 A20 3V I / O Address bus 190 A19 3V I Address bus 191 A18 3V I Address bus 192 A17 3V I Address bus 193 A16 3V I Address bus 194 A15 3V I Address bus 195 A14 3V I Address bus 196 A13 3V I Address bus 197 A12 3V I Address bus 198 A11 3V I / O Address bus 199 A10 3V I / O Address bus 200 A9 3V I/ O Address bus 201 A8 3V I/ O Address bus 202 A7 3V I/ O Address bus 203 VSS GND 204 A6 3V I/ O Address bus 205 A5 3V I/ O Address bus 206 A4 3V I/ O Address bus 207 VDD2 3V +3V source 208 A3 3V I/ O Address bus 209 A2 3V I/ O Address bus 210 A1 3V I Address bus 211 A0 3V I Address bus 212 D0 3V I/O Data bus 213 D1 3V I/O Data bus 214 D2 3V I/O Data bus 215 D3 3V I/O Data bus 216 D4 3V I/O Data bus 217 D5 3V I/O Data bus 218 VDD2 3V +3V source 219 VSS GND 220 D6 3V I/O Data bus 221 D7 3V I/O Data bus 222 D8 3V I/O Data bus 223 D9 3V I/O Data bus 224 D10 3V I/O Data bus 225 D11 3V I/O Data bus 226 D12 3V I/O Data bus 227 D13 3V I/O Data bus 228 D14 3V I/O Data bus 229 D15 3V I/O Data bus 230 MCLOCK 3V I CKIO signal from CPU IC1 231 ONENB 3V O ON Circuit enable signal IC1 232 RXD0 3V O Data output of serial port 0 IC1 233 TXD0 3V I Data input of serial port 0 IC1 234 BREQB 3V O REQ signal to CPU IC1 235 RESETB 3V O RESET signal to CPU IC1 236 VSS GND 237 IRQB 3V O IRQ signal to CPU IC1 238 RXDSH 3V I/O Data output of signal port 1 IC5(RS232C),BGA288 239 TXDSH 3V I Data input of serial port 1 BGA288 240 SCK 3V O Clock of serial port 1 IC1 241 BACKB 3V I Bus access permission from CPU IC1 242 IOIS16B 3V O Write protect signal to CPU IC1

— 30 —

No. Pin Name Volt Io/Out Function To/From

243 STATUS0 3V I 244 ONSTATUSB 3V I ONSTATUS signal from CPU IC1 245 CE2B 3V I CE2B signal from CPU IC1 246 CE2A 3V I CE2A signal from CPU IC1 247 VDD2 3V +3V source 248 ONB 3V O ON circuit start signal to CPU IC1 249 RDWRB 3V I/O Read/Write signal from CPU IC1 250 RDB 3V I Read pulse signal from CPU IC1 251 CS6B 3V I Chip select-6 signal from CPU (PCMCIA) IC1 252 CS4B 3V I Chip select-4 signal from CPU (HOTARU) IC1 253 CS2B 3V I Chip select-2 signal from CPU (LCD Driver) IC1 254 CS5B 3V I Chip select-5 signal from CPU IC1 255 ICIOWRB 3V I IOWR signal from CPU IC1 256 ICIORDB 3V I IORD signal from CPU IC1 257 CASHHB 3V I CASHH signal from CPU IC1 258 CASHLB 3V I CASHL signal from CPU IC1 259 WRHB 3V I WE1 signal from CPU IC1 260 WRLB 3V I WE0 signal from CPU IC1 261 CASLHB 3V I CASLH signal from CPU IC1 262 CASLLB 3V I CASLL signal from CPU IC1 263 RASB 3V I/O RAS/CE signal from CPU IC1 264 HSTBY 3V O HSTBY signal to CPU IC1 265 WAITB 3V O WAIT signal to CPU IC1 266 CKRTC256 3V I RTC clock signal from CPU IC1 267 CFCVRB 3V I Compact Flash lock switch SW1 268 CFWEB 3V O WE signal for CompactFlash card CompactFlash card 269 CFWAITB 3V I Wait signal for CompactFlash card CompactFlash card 270 CFVS1 3V I Voltage detect for CompactFlash card CompactFlash card 271 CFRESET 3V O Reset signal for CompactFlash card CompactFlash card 272 CFREGB 3V O REG signal for CompactFlash card CompactFlash card 273 CFRDY 3V I RDY/BSY signal for CompactFlash card CompactFlash card 274 CFOEB 3V O OE signal for CompactFlash card CompactFlash card 275 CFCD2 3V I CompactFlash card detector CompactFlash card 276 CFCD1 3V I CompactFlash card detector CompactFlash card 277 VSS GND 278 CFCE2B 3V O CE2 signal for CompactFlash card CompactFlash card 279 TEST3 3V I Not used GND 280 TEST2 3V I Not used GND 281 TEST1 3V I Not used GND 282 DTYPE64 3V I Not used 283 SIFSHUTB 3V O RXD1 signal for CPU IC5 (RS232C) 284 SIFENB 3V O 9-pin RXD1 control IC5 (RS232C) 285 MDTR 3V O RS232C control signal IC5 (RS232C) 286 MDCD 3V I RS232C control signal IC5 (RS232C) 287 TXDB 3V O 3-pin TXD signal 3pin JACK 288 RXDB 3V I 3-pin RXD signal 3pin JACK

STATUS0 si

nal from CPU

IC1

— 31 —

MC34119 (IC9)

CD FC2 FC1

Vin

2 3 4

VO2

Gnd

VO1

(Top View)

MAX3241CAI (IC5)

C2+ C2–

V– R1IN R2IN R3IN R4IN R5IN

T1OUT T2OUT T3OUT

T3IN T2IN T1IN

1 2 3

MAX3241

4 5 6 7 8

9 10 11 12 13 14

(Top View)

28 27 26 25 24 23 22 21 20 19 18 17 16 15

C1+ V+ VCC GND C1EN SHON R1OUTB R2OUTB R1OUT R2OUT R3OUT R4OUT R5OUT

VCC=3 V

to 5.5 V

LOGIC

INPUTS

LOGIC

OUTPUTS

0.1 µf

28 24

1 2

12 21

C1+ C1–

C2+ C2–

T1IN

T2IN

T3IN R1OUTB

R2OUTB R1OUT

R2OUT

R3OUT

R4OUT

R5OUT

VCC

MAX3241

GND

V+

V–

T1OUT

T2OUT

T3OUT

R1IN

R2IN

R3IN

R4IN

R5IN

SHDN

RS-232 OUTPUTS

RS-232 INPUTS

— 32 —

UPD42S16160LG5B

RN5VD18CA (IC113)

A0 to A11 : Address Inputs I/O 1 to I/O 16: Data Inputs/Outputs RAS : Row Address Strobe UCAS : Column Address Strobe (upper) LCAS : Column Address Strobe (lower) WE : Write enable OE : Output enable VCC : Power Supply GND : Ground NC : No Connection

123

OUT: Output (H=Detected) VDD: Voltage source GND: Ground NC : No connection CD : Connect to capacitor for delay

XC61A Series (IC100 ~ IC103,IC107,IC109,IC110,IC112)

VIN

123

VOUT VIN VSS

VOUT

Vref

VSS

— 33 —

MAX608 (IC105,IC106)

DIP/SO

EMI FILTER ARRAY

EXT

OUT

SHDN

1 2 3 4

(Top View)

8 7 6 5

CS GND AGND REF

UPD23C32000LGY

— 34 —

POWER SUPPLY CIRCUIT

The power supply circuit consists of 5 blocks which are Primary circuit, 5 V circuit, 3 V circuit , PCMCIA power circuit and LCD power circuit as follows;

PCMCIA power circuit

5V circuit

PCMCIA

5 V system

Fuse

Alkaline

Primary

circuit

3V circuit

LCD power circuit

LCD

3 V system

Li-ion

AC Adapter

To Detector (VSUB)

Lithium

Primary Circuit

The voltages from both batteries, alkaline and Li-ion, apply to V5 and V3 circuits through the fuse when the batteries is loaded. CHGDTCTB is for Li-ion detect. When Li-ion is full charged CHGDTCTB becomes L. ACDTCTB is for AC adapter detector. It detects whether AC adapter is used or not. When AC adapter is used ACDTCTB becomes L.

Alkaline

(1.6 ~ 3.4 V)

Li-ion

(3.0 ~ 3.6 V)

AC Adapter L100

F100

CHGDTCTB (to MB87A915)

D101 F101

To 3V and V5 circuits.

Q127

D100

D102

ACDTCTB (to MB87A915)

C105

— 35 —

5 V Circuit

DC/DC converter MAX608ESA (IC105) generates +5.11 V and it makes up 5 V system. VIO : +5 V source for 3-pin jack and LCD power block.

BATDTCT: It distinguishes alkaline and Li-ion to change the load according to the battery. When

alkaline is used, it is H. When Li-ion, it is L.

P5V : Controls ON/OFF of DC-DC converter (IC105). From pin 166 of MB87A915.

V3SYS

SW3

BATDTCT

Alkaline = OPEN

Li-ion = CLOSE

Primary Circuit

Changeover circuit for loading

Q104

L101

SHDN

EXT

MAX608 (IC105)

IC104

D105F101 L102

Q109

D104

Q106

BATDTCT = OPEN

✽

Q104 ON IC104 OFF

BATDTCT = CLOSE

✽

Q104 OFF IC104 ON

VI0

Load: Min.

Load: Max.

Q107

P5V

— 36 —

3 V Circuit

DC/DC converter MAX608ESA (IC106) generates +3.77 V and it makes up 3 V system. V3MAIN : The reference voltage for the detector.

V3SYS : +3.4 V source for IC1,IC3,IC5. V3RAM : +3.4 V source for DRAM (RAM5 ~ RAM8). V3ROM : +3.4 V source for ROM (U301,U302). ONSTATUSB : Controls ON/OFF of V3ROM. From pin 99 of CPU. V3IRDA : +3.4 V source for IrDA Transceiver CIM-10S (IC4). PIRB : Controls ON/OFF of V3IRDA. From pin 75 of MB87A915 (IC3). VSUB : +2.7 V source for detecting memory backup battery. V3AUD : +3.4 V source for MB87A195 (IC3). PDMMYM : Controls ON/OFF of the load at detecting voltage.

Primary Circuit

SHDN EXT

MAX608 (IC106)

DC-DC converter

L103

D103

Q108

V+

Q110

Q122

VIN EXT

VOUT

IC108

3.4 V Regulator

Q123

Q112

V3MAIN V3SYS

V3AUD V3RAM

V3ROM (To ROM)

ONSTATUSB OFF: H ON: L

V3IRDA (To IrDA)

PIRB (Normally H)

VSUB

PDMMYM

(Normally L)

CR2032

— 37 —

PCMCIA Circuit

DC/DC converter MAX1651 (IC111) generates 3.4 V VEL : 5.11 V source for LCD unit.

PEL : Controls ON/OFF of VEL. From pin 160 of MB87A915 (IC3). VPC : 3.4 V or 5.11 V source for detecting PCMCIA power. PSEL5 : Power supply select signal for PCMCIA (H=5 V, L=3 V). VCRDIF : 3.4 V or 5.11 V source for MB87A915 (IC3). PCRD : Controls ON/OFF of VCRDIF, From pin 164 of MB87A915 (IC3). VCARD : 3.4 V or 5.11 V source for PCMCIA connector. PCRD2 : Controls ON/OFF of VCARD. From pin 163 of MB87A915 (IC3). P5DCHG : VCRDIF control signal. ONSTATUSB : VCRDIF control signal. P5V : Controls ON/OFF of VPC. From pin 166 of MB87A915 (IC3).

5V Circuit (VIO)

Q114

Q113

V+ CS

MAX1651(IC111)

EXT

Q125

Q116

VEL

PEL VPC

PSEL5

Q117

Q126

Q120

VCRDIF

PCRD

Q124R140

L104

VCARD

Q115Q128

D109

Q118

PCRD2

Q111

P5DCHG ONSTATUSB

P5V

— 38 —

LCD power Circuit

DC/DC converter RN5VH3 (IC201) generates LCD power and it makes up LCD power system for LCD. VDD : +3.7 V source for LCD unit.

VAMP : +7.0 V source for LCD unit. PLCD : Controls ON/OFF of VAMP. From pin 159 of MB87A915 (IC3). VLCD+: +15.5 V source for LCD unit. VTH : LCD power source for LCD unit. EVOL 0-3 : LCD status. P25ON : Controls ON/OFF of LCD power. From pin 167 of MB87A915 (IC3). VLCD- : -10.0 V source for LCD unit. ONSTATUSB : Controls ON/OFF of LCD power. From pin 99 of CPU (IC1).

VDD

V3MAIN

Q200

VDD

SCI7660

(IC200)

CAP+

Q201

L219

VDD

Q202

Q203 D203

EXT1

EXT2

D200

RV5 VH3

(IC201)

FB1

CSW

Q204

TC74HC4066 (IC202)

1IO 1C 1OI

2IO 2OI

3IO 3OI

4IO 4OI

2C 3C 4C

Q205

VAMP PLCD VLCD+ VTH

EVOL 0 EVOL 1 EVOL 2 EVOL 3

P25ON

VLCD-

ONSTATUSB

— 39 —

Voltage Line

V3AUD

V3RAM

V3SYS V3ROM V3IRDA

VCRDIF

VIO

VCARD

VLCD+

VLCD–

VDD

VEL

VTH

IC1 SH-7093 CPU

CN5 3P Jack

IC3 BGA288 GATE ARRAY

Connector PCMCIA

U301/U302 32M-MASK ROM

Connector RS-232C

Connector CF

RAM5~8 ECSTOJY106R D-RAM

Connector LCD unit

IC5 MAX3241 RS232C

IC9 MC34119 AudioIC

IC4 CIM-10S IRIC

— 40 —

DETECTOR CIRCUIT

The detector circuit consistes of 7 blocks as follows;

1 : VDETECTOR1 (Alkaline and Li-ion) 5 : Full charge detector 2 : VDETECTOR2 (Alkaline and Li-ion) 6 : 3V detector (AC adaptor is not used) 3 : Backup battery detector 7 : PCMCIA voltage detector 4 : AC Adaptor detector

VDETECTOR 1

VBAT

VSUB

CN101

Li-ion(CN105)

Alkaline Detector

IC100(2.0V±5%)

Li-ion Detector

IC101(3.3V±2%) VDET1RB

VDETECTOR 2

Alkaline Detector

IC102(1.6V±1%)

Li-ion Detector

IC103(3.0V±2%)

BACKUP BATTERY DETECTOR

IC112(2.7V±1%)

AC ADAPTER DETECTOR

Q105

FULL CHARGE DETECTOR

Q101

VDET1B (L=Low battery message)

(L=Low battery message)

VDET2 (H=Forced power off)

VDET2R (H=Forced power off)

VDETS (H=Low battery message)

ACDTCB (L=Adapter used)

CHGDTCTB (L=Full charge)

V3MAIN

VPC

3V DETECTOR (AC ADAPTOR NO USED)

IC107(3.4V±1%)

VDET3B (L=Low 3V voltage message)

PCMCIA VOLTAGE DETECTOR

5 Voltage

IC109(4.5V±2%)

3 Voltage

IC110(2.1V±2%)

— 41 —

VDTC5B (L=Low PCMCIA voltage message)

VDTC3B (L=Low PCMCIA voltage message)

DIAGNOSTIC PROGRAM

Introduction

The following steps must be followed before diagnostics.

START

Remove Main

and Backup

batteries

Press RESET

button and then

Replace

batteries with

new ones

Load main

batteries

Press ON

Display appear?

❋Make sure that Battery Holder Release

switch is on “NORMAL OPERATION” side.

YES

Display appear?

Repair needed

— 42 —

YES

To Diagnostic

OPERATION CHECK

Preparation

1 : PA-2500U 5 : AC-adapter 2 : Alkaline batteries 6 : Charger 3 : Jigs of RS-JIG-232C and RS-JIG-3PIN 7 : Rechargeable battery pack 4 : RAM Card XC-110 8 : Diagnostic program (Diag 340.EXE)

Notes: •Be sure to keep separate back-up copies of all important data in PA-2500U, because the

DISGNOSTICS make data corrupt.

• Diag 340 EXE. (Program is included in CD-ROM(Service Information Disc) with Service Manual PA-2500U)

•When using alkaline batteries use new ones.

•After all inspections are done perform Full Reset. (After performing Full Reset make sure Diag 340. EXE is not in the computer.)

Step Operation Display Note

1 Picture of sky with sun and

Turn power on. Operate full Reset (refer to P12).

Enter

Touch five crosses as they appear. Enter

Done

Connect PA-2500U and a PC

then copy Diag 340.exe onto the desk top of PA-2500U.

Disconnect PA-2500U

and the PC Double click Diag icon

clouds. Wait for about 10 seconds. HP/C Setup Wizard Introduction

Touch Screen Calibration Touch five crosses as they ap-

pear

World Clock (World Map) World Clock (Calender, Clock)

Owner Properties Synchronizing with your Desk-

top Computer Differences from Microsoft Win-

dows Finished! Windows CE Menu Display

Copy Diag 340EXE to PA-2500U from CD.

** Main Menu ** 0 AUTO MODE 1 DISPLAY 2 TOUCH PANEL 3 MEMORY 4 SERIAL 5 POWER CONTROL 6 AUDIO 7 OTHERS 8 AUTO MENU1 9 AUTO MENU2 – AUTO MENU3 CPROG Rev, 0.83 for ZX34x(APO OFF)

Make sure the diagnostic program is copied.

Make sure that the diagnostic program starts.

Notes: • If the diagnostic program is not stored in the RAM, you need to load the program otherwise

the tests 11, 12 cannot be done.

• Take CF card out after turning the power off.

• When new Diag program comes out, the Rev. value will vary.

• To make the task bar disappear, touch the task bar with the stylus or press control + ESC.

— 43 —

Step Operation Display Note

Boot inspection program.

Space

** Main Menu ** 0 AUTO MODE 1 DISPLAY 2 TOUCH PANEL 3 MEMORY 4 SERIAL 5 POWER CONTROL 6 AUDIO 7 OTHERS 8 AUTO MENU1 9 AUTO MENU2 – AUTO MENU3 CPROG Rev, 0.83 for ZX34x(APO OFF)

To continue the inspection you must make the task bar disappear. When there is a task bar on the bottom of the display press Ctrl + Esc to make it disappear.

Checker pattern

Reverse checker pattern

Space

Frame. The most outside dots.

Space

All dots

No display

— 44 —

Step Operation Display Note

Space, Alt + <, Alt + >

** Main Menu ** 0 AUTO MODE 1 DISPLAY 2 TOUCH PANEL 3 MEMORY 4 SERIAL 5 POWER CONTROL 6 AUDIO 7 OTHERS 8 AUTO MENU1 9 AUTO MENU2 – AUTO MENU3 CPROG Rev, 0.83 for ZX34x(APO OFF)

Check variable resistor. Check if display brightness is changeable.

Tap on four of the crosses in any order

Enter

** Touch Panel ** 1 Case 2 Points 3 Cross

Touch Panel OK

** Touch Panel ** 1 Case 2 Points 3 Cross

NG if crosses remain on the display after tapping all four crosses.

Trace on the center of the

black lines.

1➝2 3➝4

Enter

** Touch Panel ** 1 Case 2 Points 3 Cross

— 45 —

OK when the lines are reversed.

Step Operation Display Note

Enter, 3

Enter

Enter, 6

Enter, 4

Press R then speak “test

test”, S

P, S

Enter, Enter, 7

Inspection of Auto-hide function. Touch four points 1➝4 as shown in the left. NG if

no sound is heard.

** Memory ** 1 ROM CHECK SUM 2 ROM BUS CHECK

ROM1=059a ROM2=059a ROM3=***

** Memory ** 1 ROM CHECK SUM 2 ROM BUS CHECK

** Audio ** 1 0.5KHz 2 1 KHz 3 2 KHz 4 Record

AUDIO 2KHz Make sure that the unit

emits a sound.

R Key :Start Recording P Key :Play Recorded Sound Enter Exit

Push ”S” Key to Stop Recording

Start recording. Stop recording.

Push ”S” Key to Stop playing

Start replay. Check your voice “test test”. Quit replay.

** Others ** 1 Switch 2 PCMCIA(implement) 3 PCMCIA(RAM card) 4 Compact Flash(CDs) 5 Keyboard SERIAL1 6 Keyboard SERIAL2 8 Compact Flash

VDET1 OFF VDET2 OFF VDET1R ON VDET2R ON VDET3 OFF VDETS OFF Recharge OFF VDETC3 OFF VDETC5 ON AC Adapter NOT USED Cover CLOSED FC Cover CLOSED

— 46 —

Red LED flashes.

Step Operation Display

Note

Put backup battery back in

Press battery notification

SW. Release battery notifica-

tion SW.

Plug in AC adapter.

Install lithium battery

Rmove battery cover. Replace the battery with alkaline battery. Put the cover back on.

Plug out AC adapter

Slide the battery cover lock switch to FREE

Slide the battery cover lock switch to LOCK

Remove CF cover Put CF cover back on

38 39

Press Indicator clear button

Enter, 6

Light, On, Esc , 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, –, BS, ~, q, w, e, r, t, u, i, o, p, +, |, Enter, Tab,a, s, d, f, g, h, j, k, l, ;, ’, Enter, Shift, z, x, c, v, b, n, m, <, >, ?, , Caps, Ctrl, Windows, Fn, Alt, Space, {, }, , ,

Enter, Enter

Reset

VDETS OFF

VDETS ONRemove backup battery

Recharge ON

Recharge OFF

AC Adapter USED

AC Adapter NOT USED COVER OPEN

COVER CLOSED

FC COVER OPEN FC COVER CLOSED

** Keyboard Serial ** ** Keyboard Serial **

KEY OK

** Main Menu ** 0 AUTO MODE 1 DISPLAY 2 TOUCH PANEL 3 MEMORY 4 SERIAL 5 POWER CONTROL 6 AUDIO 7 OTHERS 8 AUTO MENU1 9 AUTO MENU2 – AUTO MENU3 CPROG Rev, 0.83 for ZX34x(APO OFF)

(Power off)

Make sure backup battery is installed.

Green LED lights.

Make sure green LED goes out. Put battery cover back on after checking.

Red LED goes out.

Press Windows key. Wait for two seconds, then press Fn key.

— 47 —

IrDA Communication Test

Prepare 2 units and place them as follows;

PA-2500U

10 cm

Step

Operation Display

IrDA

** Main Menu ** 0 AUTO MODE 1 DISPLAY 2 TOUCH PANEL 3 MEMORY 4 SERIAL 5 POWER CONTROL 6 AUDIO 7 Others

** Serial ** <RS232C Check> 1 Loop Back 2 Send/Receive <IrDA Check> 3 Interactive 4 Send/Receive <3 PIN Check> 5 Loop Back

<Infrared SEND/RECEIVE> 1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

PA-2500U

80 cm

UNIT-1 UNIT-2

Operation Display

** Main Menu ** 0 AUTO MODE 1 DISPLAY 2 TOUCH PANEL 3 MEMORY 4 SERIAL 5 POWER CONTROL 6 AUDIO 7 Others

** Serial ** <RS232C Check> 1 Loop Back 2 Send/Receive <IrDA Check> 3 Interactive 4 Send/Receive <3 PIN Check> 5 Loop Back

<Infrared SEND/RECEIVE> 1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

±15 deg.

PA-2500U

Note

<Infrared SEND/RECEIVE> 1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

<Infrared SEND/RECEIVE> 1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

HHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHH

HHHHHHHH.........

"H" indication continuing without error message for more than 1 second

(ERROR message is indicated in transmission beginning and transmission closing, it is normal.)

— 48 —

Step

Operation Display

ENTER

<Infrared SEND/RECEIVE> 1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

UNIT-1

UNIT-2

Operation Display

HHHHHHHHHHHHHHHHH HHHHHHH

Note

Make sure H display stops

ENTER

ENTER, ENTER

<Infrared SEND/RECEIVE> 1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

HHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHH

HHHHHHHH.........

HHHHHHHHHHHHHHHHH HHHHHHH

<Infrared SEND/RECEIVE> 1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

** Main Menu ** 0 AUTO MODE 1 DISPLAY 2 TOUCH PANEL 3 MEMORY 4 SERIAL 5 POWER CONTROL 6 AUDIO 7 Others

ENTER

ENTER, ENTER

<Infrared SEND/RECEIVE> 1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

<Infrared SEND/RECEIVE> 1 Send data (MAX Baudrate) 2 Receive data(MAX Baudrate) 3 Send data (MIN Baudrate) 4 Receive data(MIN Baudrate)

** Main Menu ** 0 AUTO MODE 1 DISPLAY 2 TOUCH PANEL 3 MEMORY 4 SERIAL 5 POWER CONTROL 6 AUDIO 7 Others

"H" indication continuing without error message for more than 1 second

(ERROR message is indicated in transmission beginning and transmission closing, it is normal.)

Make sure H display stops

Change the communication distance or angle, and repeat the IrDA communication check.

End of IrDA check

— 49 —

Current Consumption and Voltage Detectors Check

Prepare the following items;

1 : Power supply 1 unit 2 : Ammeter 1 unit 3 : Voltmeter 1 unit 4 : AC adapter 1 unit 5 : Charger 1 unit

Current Consumption Check

Step Operation Display (Wiring) Note

Setting

Main Battery at SLEEP

1: Maximum of contrast dial. 2: Set the range of Amme-

ter

to 1 A.

3:Vb = 2.6 ± 0.1 V

Boot the diagnostic program

ON, 3

Alkaline battery terminal

** Main Menu ** 0 AUTO MODE 1 DISPLAY 2 TOUCH PANEL 3 MEMORY 4 SERIAL 5 POWER CONTROL 6 AUDIO 7 Others

** Power Control ** 1 40MHz 2 standby 3 sleep

Sleep mode

PA-2500U

Connect the items as shown. Do not load the backup battery.

To boot the diagnostic, refer to page 43.

Current consumption at SLEEP.

Measure the current. Ib = 50 mA or under.

Main Battery ON

5ON

Currently CPU clock is 180MHz Push on key to exit

** Main Menu ** 0 AUTO MODE 1 DISPLAY 2 TOUCH PANEL 3 MEMORY 4 SERIAL 5 POWER CONTROL 6 AUDIO 7 Others

— 50 —

Current consumption at ON.

Measure the current. Ib = 650 mA or under.

Step Operation Display (Wiring) Note

Main Battery at OFF

Backup battery

1 : Turn the power off. 2 : Supply the voltage to backup battery termi-

nals as right figure .

3 : Remove main batter-

ies.

4 : Measure the current.

Vs = 3.0 ± 0.1 V

(Power off)

Backup battery terminal

(No display)

PA-2500U

Current consumption at OFF.

Measure the current. Ib = 1.4 mA or under

Connect the items as shown.

Current consumption of backup battery.

Measure the current. Is = 450 µA or under.

— 51 —

Voltage Detectors Check

Check the following detectors; VDET1: Low battery message detector for alkaline batteries.(2.0 V ± 1 %)

VDET2: Foced power off detector for alkaline batteries.(1.6V ± 1 %) VDET1R: Low battery message detector for rechargeable battery.(3.3 V ± 2 %) VDET2R: Foced power off detector for rechargeable battery.(3.0 V ± 2 %) VDETS: Low battery message detector for back-up battery.(2.7 V ± 1 %)

Step

Setting Connect the items as

Vb = 2.6 ± 0.02 V

Operation Display (Wiring) Note

Alkaline battery terminal

shown.

ENTER, 7, 1

VDET1 OFF VDET2 OFF VDET1R OFF VDET2R (indefinite) VDET3 OFF VDETS ON Recharge OFF CHKPRG OFF AC Adapter USED Cover CLOSED CardLock CLOSED Cradle NOT STAY

PA-2500U

ChargerAC adapter

VDET1

VDET2

Put power supply voltage down by degrees.

VDET1 ON VDET2 OFF

VDET1 ON VDET2 ON

— 52 —

Measure the voltage that VDET1 becomes ON.

VDET1 = 2.0 V ± 5 %

Measure the voltage that VDET2 becomes ON.

VDET2 = 1.6 V ± 1 %

Step Operation Display (Wiring) Note

Setting Change to connect power

supply to the terminals for rechargeable battery.

Vr = 2.6 V

VDET1R

VDET2R

Put power supply voltage down by degrees.

Rechargeable battery terminal

VDET1R ON VDET2R OFF

VDET1R ON VDET2R ON

PA-2500U

ChargerAC adapter

Connect the items as shown.

Measure the voltage that VDET1R becomes ON.

VDET1R= 3.3 V ± 2 %

Measure the voltage that VDET2R becomes ON.

VDET2R= 3.0V ± 2 %

VDETS

Change to connect power supply to the terminals for backup battery.

Vs = 3.0 V

Put power supply voltage down by degrees.

Connect the items as

Backup battery terminal

shown.

VDETS ON Measure the voltage that

PA-2500U

VDETS becomes ON. VDETS = 2.7 V ± 1 %

— 53 —

DISASSEMBLY • ASSEMBLY

1. Module

1. Remove dummy card and stylus.

2. Remove the backup battery cover by pressing a point with the stylus shown below, then remove the backup battery.

3. Remove the main batteries by releasing the lever.

4. Remove the flash memory card cover (23).

5. Unscrew six screws (5).

6. Open the case by unhooking three places by pressing from outside.

— 54 —

7. Remove the connecter in the main battery campartment leading from the backup battery compartment by pulling it straight up. Caution:Pulling the wire may cause the pins and hooks to break.

8. Separate upper case and lower case.

2. Upper case ass’y

1. Remove four connectors placed on the main board (38). Caution: Do not pull the wire that leads from the speaker. Use a minus screw driver to remove the

connector as shown below.

2. Remove ROM board (10).

3. Unscrew ten screws (30).

— 55 —

4. Unscrew two screws (30) to remove the terminal holders. Remove both battery terminal.

Terminal holder

5. Remove the terminal wire, then remove the main board.

6. When you replace K-film (35), stick K-spacer (34) on the “ON” key on new K-film. * This is to prevent from accidentaly turning the computer off.

K-spacer

— 56 —

3. Removal of touch panel and LCD unit

* Removal is possible without removing the main board.

1. Unscrew two screws (25), then remove hinge holder (24).

Hinge holder

2. Set the lower case with diplay facing up and unscrew six screws (2).

3. Lift up the side with hinges and remove DP lower case (1).

4. Unscrew two screws (56) from the hinge on FPC side.

Two screws

— 57 —

5. Remove three screws (56) from the hinge on tilt unit side then open the diplay at an angle of about 45 degrees and slide it sideways.

6. Remove the hinges and place the cases flat as shown below.

7. Hold two FPCs togother and roll them up as shown below.

8. Lift up the main board side, then tilt the case with the board and pass the rolled up FPCs through the hole of the case and separate the keyboard case.

— 58 —

9. Slide the shaft piece (55) to the direction of the arrow to remove it.

10. Remove seven screws (56) and screw (49) , then remove LCD unit. Caution:When doing so do not touch the TAB shown by the arrows below. (To prevent open circuits which cause no display)

Do not touch

11. Remove the connector of the touch panel.

12. Unscrew two screws (56).

Two screws

13. Lift up the touch panel and slide it upwards to remove it.

— 59 —

14. Remove the connector on microphone board, then remove the LCD unit.

4. Precautions when installing LCD unit.

1. Do not touch the TAB of the display. (To prevent open circuits)

— 60 —

5. Installation of shaft piece

1. Roll up the FPC of the display around on a precision screwdriver.

2. Pass FPC through an opening on the bottom of shaft piece (55).

3. Pass FPC through inside of shaft piece then through an opening on the top of shaft piece.

4. Pull the FPC to adjust its position relative to shaft piece.

— 61 —

6. How to pass FPC through the upper case

1. Place upper case with keyboard side facing up above the display which is also facing up.

2. Hold two FPCs togother and roll them up as shown below.

3. Let the upper case stand and pass the rolled up FPCs through the hole.

4. Pull the FPC from inside the upper case.

— 62 —

5. Pull to the point where the FPC is bent 90 degrees. Then move the upper case so that the FPC will go through the hole.

6. Pull the FPC all the way.

7. Precautions when assembling

1. Speaker and backup battery both are connected by 2-pin connectors. The connector closer to the hinge are for the backup battery. * Be sure to connect them to the right place. * Make sure you get the + and – right.

Hinge holder

2. When closing the upper case and lower case do not forget to set the connector for backup battery.

3. Wires for the main battery, set the gray wire in the gutter of the case first then the black wire next. When putting the upper case and lower case together make sure no wires are nipped.

Battery wire

— 63 —

4. Before putting the upper case and lower case together do not forget to set the filter (16) next to the three pin connector.

5. Before putting the upper case and lower case together do not forget to set the hinge holder (24).

— 64 —

EXPLODED VIEW

32 39

58 59

— 65 —

PARTS LIST

Item Code No. Parts Name Specifications Q R

COMPONENT

1 6670 1912 CASE/LOWER (DISPLAY) C341910*1 1 C 2 6562 1170 SCREW C442157-1 6 X 3 6566 0220 COVER/LED C341823-1 1 X 4 6670 1908 CASE ASS'Y/BATTERY (MAIN) C140597*2 1 B 5 6339 1750 SCREW A33953-33 5 X 6 6566 1420 PLATE/RATING C442658-1 1 X 7 6562 1140 COVER/CONNECTOR C341538-1 1 B 8 6562 1730 PEN ASS'Y C341657*1 1 A

9 6670 2075 CARD ASS'Y/DUMMY C241046*2 1 X 10 6670 1909 PCB ASS'Y/ROM C140601*2 1 B 11 6566 0270 LABEL/BATTERY (BACK-UP) C341668-2 1 X 12 6390 0432 CAP A310765B-1 1 B

KEY LOWER CASE ASSY

13 6418 4250 SPRING C441562-1 1 C 14 6562 1260 LEVER/BATTERY C241000-1 1 C 15 6562 1270 HOLDER/PEN C241001-1 1 X 16 6562 1280 FILTER C341539-1 1 B 17 6562 1390 SCREW C341659-1 3 X 18 6562 2580 SPACER C442378-1 1 X 19 6670 1650 PCB ASS'Y/BATTERY (BATTERY) C341683*1 1 C 20 6562 1740 CASE/LOWER (KEYBOARD) C140544-1 1 C 21 6562 1670 COVER/BATTERY (BACK-UP) C341535-1 1 B 22 6562 1660 COVER/ROM C341536-1 1 X 23 6562 1650 COVER/CF CARD C341537-1 1 B

KEY UPPER CASE UNIT

24 6562 1310 HOLDER/HINGE C341542-1 1 X 25 6339 1750 SCREW A33953-33 4 X 26 3335 6652 UNIT/TILT ST145A0001 1 C 27 6339 1750 SCREW A33953-33 4 X 28 6562 1370 HOLDER/TERMINAL (LEFT) C341540-1 1 X 29 6562 1380 HOLDER/TERMINAL (RIGHT) C341541-1 1 X 30 6562 1390 SCREW C341659-1 12 X 31 6562 1400 BLACKET/SPEAKER C442147-1 1 X 32 6562 1410 NET/SPEAKER C442148-1 1 X 33 6562 1890 SPRING/EARTH C442306-1 1 X 34 6562 2550 SPACER/KEY C442419-1 1 C 35 6566 0250 FILM/KEYBOARD C140548-2 1 C 36 6566 0260 KEYBOARD C140549-2 1 C 37 6566 0390 CASE/UPPER (KEYBOARD) C140547-2 1 C 38 6670 1915 PCB ASS'Y/CPU C140598*3 1 A 39 6670 1654 SPEAKER ASS'Y C341682*1 1 B 40 6562 1470 SHIELD/PC CARD C241002-1 1 X 41 6562 1480 SHIELD/CF CARD C341559-1 1 X 42 6562 1490 BLIND C442158-1 1 X 43 6562 1510 FRAME/CONNECTOR 305027000952000 1 C 44 6562 1520 FRAME/CONNECTOR 55021-0001 1 C 45 6670 1658 TERMINAL ASS'Y/CHGOUT (CN104) C341715*1 1 C 46 6670 1659 TERMINAL ASS'Y/DETFULL (CN105) C341716*1 1 C 47 6670 1660 TERMINAL ASS'Y/POSITIVE POLE (CN103) C341717*1 1 C 48 6670 1661 TERMINAL ASS'Y/NEGATIVE POLE (CN106) C341718*1 1 C 49 6511 4660 SCREW A310044-25 1 X

Notes: Q – Quantity used per unit A: Essential

R – Rank B: Stock recommended

R –

C: Others D: No stock recommend

— 66 —

Item Code No. Parts Name Specifications Q R

DP UPPER CASE UNIT

50 6670 1921 TOUCH PANEL ASS'Y C341909*1 1 A

51 6670 1919 PCB ASS'Y/MIC C241138*1 1 C 52 6562 1440 RUBBER/STOPPER C442144-1 2 C 53 6566 0180 CASE/UPPER (DISPLAY) C140651-1 1 C 54 6566 0200 BUTTON/NOTIFICATION (LED) C341825-1 1 X 55 6566 0210 SHAFT PIECE C341824-1 1 X 56 6339 1750 SCREW A33953-33 8 X 57 3335 6654 UNIT/LCD MD554TN00-E2 1 A 58 6670 1920 MIC ASS'Y C442406*2 1 B 59 6566 0240 HOLDER/MIC C442524-1 1 C 60 6670 1918 PCB ASS'Y/LED C341912*1 1 B 61 6562 1170 SCREW C442157-1 1 X

Z370-1 UNIT

X1 2254 0540 OSCILLATOR/CERAMIC CSTCC3.68MG-TC 1 C X2 2254 0539 OSCILLATOR/CERAMIC CSTCC10.0MG-TC 1 C

X3 2590 2740 OSCILLATOR/CRYSTAL C-004R-12P15-20 1 B CN7 2254 0558 CONNECTOR WR-80P-VF50-1-E13 1 C CN2 2254 0533 CONNECTOR 145027068140833 1 C

CN101 2254 0553 CONNECTOR HEC3650-012010 1 B

CN6 2254 0554 CONNECTOR 53927-5018 1 C CN4 3013 2586 CONNECTOR 3560-16SR1(11) 1 B

CN8,CN200 2254 0537 CONNECTOR IL-FPR-30S-VF-E 2 B CN9,CN100 7930 0471 CONNECTOR 24 8005 002 000867 2 B

CN5 3501 8197 JACK HSJ1169-019010 1 C

SW1,SW101 2254 0557 SWITCH ESE11MH2T 2 B

SW100 2254 0532 SWITCH ESE22MH2 1 B

F100,F101 3632 0714 FUSE/CHIP F0805B3R00FW 2 B

IC4 2254 0527 IRDA MODULE CIM-10S 1 B

IC105,IC106 2105 6223 CONVERTER /DC-DC MAX608ESA-T 2 C

IC111 2775 3312 CONVERTER/DC-DC MAX1651CSA-T 1 C

IC9 2116 0225 IC/AMP MC34119DTBEL 1 C RAM5,RAM6 2012 5794 LSI/RAM HM51W16165LTBV-7 2 C RAM7,RAM8 2012 5795 LSI/RAM HM51W16165LTBE-7 2 C

ACCESSORY

3301 0451 AC ADAPTOR AD-C50200U-CS0 1 X 3335 6594 CABLE/RS232C TPX1375-010100 1 X 3335 6657 SOFTWARE/CD-ROM (MS) CDZ340AA01A 1 X

JIG

1909 2389 RS232C test connector RS-JIG-232C 1909 2388 RAM card XC-110 1909 2391 3-pin test cable RS-JIG-3PIN

Notes: Q – Quantity used per unit A: Essential

R – Rank B: Stock recommended

— 67 —

R –

C: Others D: No stock recommend

WIRING DIAGRAM

WM-64KY506

115.2kbps

38.4kbps

LR03 Li-ion

MIC

PCB-Z340-LED

IRDA I/F

CIM-10S

CN5 IC4

3pin jack

HSJ1169-019101

Touch panel connector

IL-402-4S-E1000

086212006

CN5

PCB-Z340-DPMI

086212014

MAIN BLOCK PCB-Z370-1

CN1

CN4

RAM5 ~ RAM8

(HM51W16165)

LCD Unit

Touch panel:

CN201

046240030001800

MIC, LCD connector

DATA 0-31

ADD 0-25

MD554TN00-E2

EMU601A2C114

IL-FPR-30S-VF

LCD connector

CN200 CN9

24800500200867

Speaker connector

3.68MHZ

IC3(HB87A915)

ADD 0-16

10MHZ 10MHZ

DATA 0-15

ADD 0-10

PC-CARD connector

145027068140833

DATA 0-15

ADD 0-25

CN2CN6CN4

SP 20D2

PC-CARD

CompactFlash card

AC adapter

Battery

AD-C50200G

ADP connector

HEC3650-012010

CN101

ZX-340 C140694

KEY connector

IL-FPR-30S-VF

CN8 CN7

ZX-340 KEY MATRIX C442652

DATA 0-31 DATA 0-7

ADD 0-25

ROM BOARD

ROM BOARD PCB-Z370-ROM

32.768KHZ

10MHZ

ROM BOARD connector WR-80P-VF50-1

DATA 0-31

IC1(SH-7093)

PLL 80MHZ

CN100

ADD 0-25

53927-5018

CF connector

3560-16SR

RS232C connector

Backup board connector 248005002000867

Sub PCB

PCB-Z370-BATT

115.2kbps

Backup battery CR2032

— 68 —

PCB VIEW

— 69 —

SCHEMATIC DIAGRAMS

Z340-1 PCB 1/3 (MAIN)

DRAM

To KEY MATRIX

To Z340-1 PCB 2/3

3.68 MHz for Oscillator (RS232C,IrDA)

To SP

To Z340-1 PCB 3/3

IrDA I/F

CN2

To Z340-1 PCB 3/3

(DP I/F BLOCK )

32.768 KHz for Clock

10.0 MHz for Oscillator (Main Clock)

CPU

To Z340-1 PCB 3/3

Gate Array

PCMCIA

CN5

3-pin Jack

To Z340-1 PCB 3/3 (DP I/F BLOCK)

RS232C

CN4

— 70 —

Z340-1 PCB 2/3 (POWER SUPPLY)

2.0V

3.3V

Alkaline Detector

1.6V

Li-ion Detector

3.0V

>>>

Li-ion

Alkaline

3.4V DC/DC

5.11V DC/DC

3.4V

3V Detector

4.5V

PCMCIA Detector

> >

2.7V

ACL

> >

Primary Circuit

> >

3.4V Regulator Backup Battery Detector

3.77V DC/DC

2.7V

— 71 —

Z340-1 PCB 3/3 (DP I/F BLOCK)

To LCD unit To LCD unit To Z340-DPMI PCB (MIC)

CN200 CN201

LCD Power Circuit

+15.5 V

–10.0 V

< <

CN6CN7

CompactFlash CardFrom Z370-ROM PCB (ROM)

— 72 —

Z370-ROM PCB (ROM)

CN7

To Z340-1 PCB 1/3 (MAIN)

— 73 —

Z340-DPMI PCB (MIC)

To Z340-LED PCB (LED)

CN5

CN4

CN1

To LCD unit

From Z340-1 PCB 1/3 (MAIN)

— 74 —

Z340-LED PCB (LED)

V3SYS

1M R5

CN5

LEDOFFB

SW1

EVQPSC02K

SML-210LT

R1 680

V3SYS

R2 680

DTA114YKAT146

D2 SML-210LT

V3SYS

SML-210LT

R3 91

R4 91

SML-210LT

LEDONB

CHGDTCTB

GND

V3SYS

To DPMI PCB

— 75 —

KEY MATRIX

Key matrix for American English

Key Key Key Key Key Key Key Key

Imput0 Imput1 Imput2 Imput3 Imput4 Imput5 Imput6 Imput7

KeyOutput0

KeyOutput1

KeyOutput2

KeyOutput3

KeyOutput4

KeyOutput5

KeyOutput6

KeyOutput7

Function-key matrix

EscTab12345

67890

QWER TY U I

ASDFGHOP

ZXCVBNJK

Delete ? |

BackSpace

Resv. Space

Key Key Key Key Key Key Key Key

Imput8 Imput9 Imput10 Imput11 Imput12 Imput13 Imput14 Imput15

—

–

, ; = .

/\ G

{ } Home PgDn End []FHE

Resv. : + >

Resv.

PgUp

Enter Resv. Resv.

Resv. ELON

Resv.

KeyOutput8

Ctrl Alt Shift Shift Windows Resv. Fn Resv.

(R) (L)

— 76 —

CASIO TECHNO CO.,LTD.

Overseas Service Division

8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160-0023, Japan

Casio PA2500U Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual