User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 70
Issue 1 06/01
Faulty
N200 (COBBA)
Check analog audio input signal
Signal amplified (ca. 10x)
at N201 pins 5 and 8 ?
NO
NO
OK
Faulty
N200 (COBBA)
NO
NO
OK
OK?
XEAR at C220, min. some 10 mV
Analog audio signal at
C236 and C237?
OK?
NO
Check
L200, L201,
PWB connections
PHF speaker fault continued
Check
R208, C213 and
XEAR traces from
C220 to N200
Check R212, R213,
C220, C241, C223,
C217, C218
Faulty
N201 (audio amp)
OK
Faulty
Figure 58.