Sony CMD-Z28 Service Manual
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Sony CMD-Z28 Service Manual

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SERVICE MANUAL
Ver 1.0 2001.06
Signalling format
Frequency range
GSM power class
DCS power class
SIM chip
Display
Channel spacing
Number of channels
Frequency stability
RF output power
Battery life
Power requirements
Operating temperature
Accessories operating temperature
Battery pack charging temperature
Dimensions
Weight
Volume
<Supplied accessories>
• AC Adaptor
• Battery (std.)
• Desk Top Charger
• Hand Strap
• AC Cable
Design and specifications are subject to change
without notice.
CMD-Z28
SPECIFICATIONS
Dual-Band
E-GSM 900 MHz,Transmit: 880 – 915 MHz
Receive: 925 – 960 MHz
DCS 1800 MHz, Transmit: 1710 – 1785 MHz
Receive: 1805 – 1880 MHz
Class 4 (2W)
Class 1 (1W)
Pluggable mini SIM card
High resolution grey scale full graphics display
Resolution: 96 × 72 pixels
Graphic Icons
5 lines × 12 (normal font numeric) characters
200 kHz
E-GSM:
174
DCS:
374
Transmit frequency drift (synchronized)
< ± 0.1 p.p.m
GSM: 2W
DCS: 1W
Standby: 30h – 130h standard battery
50h – 220h extended battery
Talk time:1h30 – 3h40
2h30 – 6h extended battery
4.0 V (nominal)
-10°C to +55°C
±0°C to +45°C
±0°C to +40°C
88 mm × 47.5 mm × 22 mm
82 g
3
78 cm
QN-2TC
QN-Z5BPS
QN-Z5DTC
E Model
standard battery

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Summary of Contents for Sony CMD-Z28

  • Page 1 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...

  • Page 2: Table Of Contents

    COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

  • Page 3: General

    SECTION 1 GENERAL...

  • Page 4: General Descriptions

    Users are able to manually roam between PLMN’s operating in GSM 900 and DCS 1800 bands. The CMD-Z28 is a phase II, GSM 900 class 4, DCS 1800 class 1 mobile phone. The nominal maximum output power for GSM 900 is 2 W, for DCS 1800 1 W.

  • Page 5: Accessory Interface

    RF Antenna Connector / Antenna Switch To connect an external antenna for accessory use, the CMD-Z28 contains a stable RF connector with an integrated mechanical switch. This connector is placed on the I/O connector. The integrated mechanical switch switches between the helix antenna and the external RF antenna connection.

  • Page 6: Accessories

    SECTION 3 ACCESSORIES 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...

  • Page 7: Jigs And Tools

    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...
  • Page 8 3 claw 6 LCD 1 two claws 3 claw 7 light guide 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.

  • Page 9: Interface To Gsm-Tester

    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.

  • Page 10: Programming Instructions

    • 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.

  • Page 11: Save Personal 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.

  • Page 12: Exploded View

    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...

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