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Customer Care Europe, Middle East & Africa
SCCE Training Group
Check TXC at C761, power level 19 and 5 (See picture below).
Oscilloscope settings:
Ampl:
500mV
Time/Div:
10ms/Div
AC/DC/GND:
AC
Power level 19
If the TXC signals are not ok, check UEM D200.
Check TXP signal at J760 (See picture below).
Oscilloscope settings:
Ampl:
500mV
Time/Div:
1ms/Div
AC/DC/GND:
AC
If the TXP signal is not ok, check UPP D400.
Check System Clk = 26 MHz at C752 (see picture at chapter Electrical faults/ Totally dead)
If also the System Clk is ok, check the following voltages:
Check VR3 = 2.8 VDC at C602 (supply voltage for 26 MHz oscillator G740)
Check VR4 = 2.8 VDC at C601
Check VR5 = 2.8 VDC at C604
Check VR6 (VBB) = 2.8 VDC at C605
Check VR1A (VCP) = 4.7 VDC at C600 (control voltage VC for SHF oscillator)
Check VR7 = 2.8 VDC at C299 (supply voltage VCC for SHF oscillator)
Check VREF01 and VREF02 = 1.35 VDC at R726
If one of the voltages described above is not ok, check UEM D200.
If all voltages are ok, change Hagar N600.
© NMP 2003
CONFIDENTIAL
NPE-4 6310/NPL-1 6310i
Date 22.04.2003
Power level 5
Checked by:
SCCE Training Group
18 (29)
Repair Hints
Version 3.0 Approved
Approved by:
SCCE
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