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Summary of Contents for SwissPhone DE10A
- Page 1 Swissphone Service Manual DE10A (DE935) Version 1.2, February 2012 Swissphone Telecom AG Fälmisstrasse 21 CH-8833 Samstagern Service Manual DE10A (DE935) Page 1 / 21...
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Page 2: Table Of Contents
8.15 HF current ..........................19 8.16 µC on current ........................20 8.17 Off mode current ........................20 List of testing points ........................ 21 Service Manual DE10A (DE935) Page 2 / 21... -
Page 3: Document
This manual contains all the information required to perform service work on the DE935, such as adjusting the tuning frequency, checking the function of individual circuit blocks, detailed measurements etc. DE935 usually refers to the end device, whereas the name DE10A is generally used for the project and the device’s components. -
Page 4: Assembly/Disassembly Information
Please always check that the flex is on the correct side of the middle tab. The two sections of the casing are then screwed together using two screws (no. 0 Philips screwdriver). 2 and 3 Position of the self-adhesive tab (Section 0). Service Manual DE10A (DE935) Page 4 / 21... -
Page 5: Disassembly
Carefully separate the two casing sections on the ribbon cable side. The upper casing section must not be pivoted too much otherwise the ribbon cable may become damaged by a tab. Check that the ribbon cable has not been damaged. Service Manual DE10A (DE935) Page 5 / 21... -
Page 6: Separating The Display From The Main Board
Shows the firmware version and the serial number of the device. Return to the hidden menu using the confirmation button. 3.2.2 Delete all messages Deletes all messages in the pager after the query has been confirmed. Service Manual DE10A (DE935) Page 6 / 21... -
Page 7: Delete Idea Keys
A short alert is signalled when a call is received; call suppression is not enabled. The parameters are as follows in verify mode. "Network" is network 1 (can be changed), "RIC" = programmed and "Radio" = economized. Service Manual DE10A (DE935) Page 7 / 21... -
Page 8: Test Lcd
With Test LCD, you can scroll between the following test displays using the navigation buttons. Return to the test menu using the confirmation button. 3.3.3 back Exits test mode and starts the pager in normal mode after a reset. Service Manual DE10A (DE935) Page 8 / 21... -
Page 9: Instructions On Adjustment To The Tuning Frequency
The IF cable is connected to a CO with frequency counter and the HF cable is connected to a signal generator. The two sprung metal pins establish a contact at TP61 and TP62. Freq. counter HF generator HF cable IF cable (450kHz) DE935 TK9xx (rear view) Service Manual DE10A (DE935) Page 9 / 21... -
Page 10: Preparing The Pager For The Tuning Frequency
With C11, C14, C2 (in this order) maximise the IF amplitude again (fine adjustment). Tune band-pass with C11 Adjust VCO control voltage (measured at TP3) with C40 Tune band-pass with C14 Tune antenna with C2 Service Manual DE10A (DE935) Page 10 / 21... -
Page 11: Sensitivity Test
PSWplus (service version) (PSWplus Device information Channel spacing). Changing the frequency band The pager is equipped for a particular frequency band during production. Changing the frequency band is not intended to be included in the service. Service Manual DE10A (DE935) Page 11 / 21... -
Page 12: Function Test/Calibration
The function is only executed when the corresponding button on the right-hand side of the window is actuated. The individual functions are described below. Service Manual DE10A (DE935) Page 12 / 21... - Page 13 In order to do this, a known voltage is measured with the µC; the difference between the measured voltage and the effective voltage corresponds to the correction value. Service Manual DE10A (DE935) Page 13 / 21...
- Page 14 The receiver operates as in normal mode. The frequency is set in accordance with the currently selected network (profile). If 2 different networks are selected for the currently selected profile (scan mode), the receiver operates in scan mode. Service Manual DE10A (DE935) Page 14 / 21...
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Page 15: Service Tools In Pswplus (Service)
Repair number 7.3.1 Power Source Three different power source configurations have been defined. A fourth, user-defined configuration can also be created. Configurations 1 to 3 are pre-defined for the following voltage sources. Service Manual DE10A (DE935) Page 15 / 21... -
Page 16: Rssi Calibration
In “free” test mode, send call 81030307015A to RIC 500D Calibration at -70 dBm Set HF level at the TEM cell to -70 dBm In “free” test mode, send call 810303070046 to RIC 500D Service Manual DE10A (DE935) Page 16 / 21... -
Page 17: Repair Number
The upper limit value can be extended to +80 ppm, then different limit values apply to Main Clock shift (Section 8.6) than if ±50 ppm applied. More detailed information can be found in the following section. Service Manual DE10A (DE935) Page 17 / 21... -
Page 18: Main Clock Shift
PSWplus Tools Receiving frequency Tuning frequency [MHz] Measuring the control voltage of the VCO at TP3 with the tuning frequency Tuning C40 until the voltage at TP3 is within the 1.45 V < U < 1.55 V range. Service Manual DE10A (DE935) Page 18 / 21... -
Page 19: T1/T2 Current (Lna)
1 shunt resistor I Measuring I total total µC_on Permissible current range: 6.0 mA ≤ I ≤ 11.2 mA Service Manual DE10A (DE935) Page 19 / 21... -
Page 20: 8.16 Μc On Current
10 shunt resistor. Note: Only connect the shunt to the measuring Measuring I line after the pager has been switched off. Permissible current range: 0.1 mA ≤ I ≤ 0.4 mA Service Manual DE10A (DE935) Page 20 / 21... -
Page 21: List Of Testing Points
VDD (Flash Programmer Interface) SCLK_FL (Flash Programmer Interface) CNVSS (Flash Programmer Interface) GND (Flash Programmer Interface) HF contact voltage 2.5 V reference voltage Beeper BAT+ Vibrator LCD backlight (yellow) LCD priority alert light (red) Service Manual DE10A (DE935) Page 21 / 21...
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