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CMD-Z28
SERVICE MANUAL E Model
Ver 1.0 2001.06
SPECIFICATIONS
Signalling format Dual-Band
Frequency range E-GSM 900 MHz,Transmit:880 – 915 MHz
Receive: 925 – 960 MHz
DCS 1800 MHz, Transmit:1710 – 1785 MHz
Receive: 1805 – 1880 MHz
GSM power class Class 4 (2W)
DCS power class Class 1 (1W)
SIM chip Pluggable mini SIM card
Display High resolution grey scale full graphics display
Resolution: 96 × 72 pixels
Graphic Icons
5 lines × 12 (normal font numeric) characters
Channel spacing 200 kHz
Number of
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TABLE OF CONTENTS CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by 1. GENERAL ................................................................... 3 the manufacturer. Discard used batteries according to the manufacturer’s instructions. 2. GENERAL DESCRIPTIONS 2-1. Multi-band ....................................................................... 4 2-2. Real Time Clock (RTC) .............................................
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SECTION 1 GENERAL 3
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SECTION 2 GENERAL DESCRIPTIONS 2-1 Multi-band : CMD-Z28 support E-GSM 900 and DCS 1800 multi-band functionality. Because the usage of multi-band depends on network capabilities, the phone is able to operate as a single band mobile in GSM 900 as well as in DCS 1800; In addition, it supports the extra functionality required for multi-band mobile stations: Inter-band/ “seamless” hand-over, channel assignment, cell selection and re-selection, all between both bands within a Public Land Mobile Netw
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2-6 Accessory Interface The table explains what kind of pins the phone supplies to the different accessories. GND Charge ACC_ Audio Audio ACC ACC TX RX AGND RF RF Pins power IN Out ID Detect (OUT) (IN) GND OUT 18 1/2 3 14 13 11 6 9 10 12 19/22 20 Travel charger √√ (QN-2TC) I/O connector layout Connector view from base of phone 117 218 The connector comprises the following pins: Detection: The detection of accessory is done by the charge pin and the detect pin. Any accessory with an active charge
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SECTION 3 ACCESSORIES 3-1 Travel Charger The Travel Charger QN-2TC is a small and lightweight device. It has a full Input Voltage Range from 110 – 240 Volts. Using a standard cable makes the connection to the mains socket. Specifications: Input voltage 110 to 240 V Rated output voltage 5.0 V Rated output current 500 mA 3-2 Desk Top Charger (not for sale by itself) The desktop charger QN-Z5 DTC can charge either the Standard or Extended battery with the phone attached. The Desk Top Charger gets
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SECTION 4 JIGS AND TOOLS Description Part No. Remark DATA TRANSFER JIG 1-792-172-11 NECESSARY FOR SOFTWARE UPDATE HOOK RELEASE JIG 3-043-180-01 FOR HOUSING OPENING TESTER CONNECTION CABLE 1-792-726-11 FOR CONNECTION TO GSM MEASURE EQUPMENT HOOK RELEASE JIG DATA TRANSFER JIG TESTER CONNECTION CABLE SECTION 5 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. CABINET (UPPER) 1 two screws 2 three claws 3 5 cabinet (upper) 2 four claws 4 three claws CABINET LOWER 2
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LCD 3 claw 6 LCD 1 two claws 5 3 claw 7 light guide 2 1 two claws 4 two claws MAIN BOARD ASS’Y 2 claw 3 flexible PWB unit 2 claw 4 main board ass’y 1 Open connector. 8
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SECTION 6 INTERFACE TO GSM-TESTER CMD-Z28 Level 1 Testing with GSM Tester CMD-Z28 + Battery Pack + Test SIM Card Tester Connection Cable 1-792-726-11 RF cable output RF input Connector GSM – TESTER Level Test Procedure with GSM TESTER recommendation: • Simulate GSM call processing – to check the functionality of transmit and receive audio of loudspeaker and microphone. • Basic GSM transmission & reception parameter testing – to ensure handset's performance compile with standard GSM specificat
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SECTION 7 PROGRAMMING INSTRUCTIONS 7-1 Requirement • PC (486 type or higher) with Microsoft “Windows” Operating System • One COM-port free for usage • The Data Transfer Jig (p/n 1-792-172-11) PREPARATION FOR SOFTWARE UPDATE 7-2 Hardware Set-up • Copy all the files to the PC (define own directory). • Connect the Data Transfer Jig to the PC COM-port (COM 1 or COM 2) and the CMD-Z28 external connector. • Attach battery pack to CMD-Z28; the CMD-Z28 is powered up from the battery pack. • The initia
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SECTION 8 SAVE PERSONAL DATA IN MOBILE Check Load Option to “Save Data in Mobile” Click “START” Select or input file to save data. Connect CMD-Z28 and set battery pack, then start reading data from Mobile. And then save read data in the selected file. The read data can be downloaded to Mobile with this loader. 11
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CMD-Z28 SECTION 9 EXPLODED VIEW NOTE: • The parts with no reference in the exploded The components identified by mark 0 or dotted line with mark view are not supplied. 0 are critical for safety. • The construction parts of an assembled part Replace only with part number are indicated with a collation number in the specified. remark column. LCD1 ANT101 11 2 main board ass'y 8 not supplied CN205 6 3 5 7 12 4 15 14 9 MIC213 13 1 CN401 17 10 16 Ref. No. Part No. Description Remark Ref. No. Part No
