Siemens C55 Diagram
Siemens Mobile Phones
C55 Screenshots for Level 2.5e
Troubleshooting
V1.00
Version Date Department Notes to change
V 1.00 19.11.2002 ICM MP CCQ GRM New document
V 1.0 Page 1 of 8 ICM MP CCQ GRM
C55_Screenshots
Company Confidential
Copyright 2002© Siemens AG
11/02
Table of Content
1 GENERAL INFORMATION 3
2 SPECIAL CIRCUIT DIAGRAM 3
3 SCREENSHOTS RX PATH 5
4 SCREENSHOTS TX PATH 5
5 SCREENSHOTS TX SIGNALS 6
6 SCREENSHOTS 26 MHZ VCO 6
7 SCREENSHOTS LO1 (RF VCO) 7
8 SCREENSHOTS LO2 (IF VCO) 7
9 SCREENSHOTS LOGIC VOLTAGES/SIGNALS 8
V 1.0 Page 2 of 8 ICM MP CCQ GRM
C55_Screenshots
Company Confidential
Copyright 2002© Siemens AG
11/02
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1 General Information
All measurements are done on channel 124 with WinSui Version 1.38. For all measurements an AFC
value is required. The LNA is active and the AGC is select to 20 dBm for RX measurements. Before
TX measurements the PCL, the TXPWM and the IQ Offset value must read out of the FLAH with the
READ buttons. For the Transmitter a random bit modulation with TSC 0 is used.
Abbreviations description:
Norm Rx/Tx Power – Normal Timing
RXCont Rx/Tx Power – RX Continues
TX Cont PA off Rx/Tx Power – TX Continues Power Amplifier off
RF GEN external RF Generator
Channel 124
Frequency Offset: 67.7 kHz
Level –50dBm
No BIT modulation
Continues Wave
2 Special Circuit Diagram
Special_Circuit_Dia
V 1.0 Page 3 of 8 ICM MP CCQ GRM
C55_Screenshots
am.pdf
Company Confidential
Copyright 2002© Siemens AG
11/02
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