User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 25
Issue 1 06/01
2.6.1 No Accessory Voltage when needed
– Power supply must be 3.7V.
– MJS–14 Test Jig must be used.
– Signals must be measured during Wintesla Accessory Power Output Test .
Check
VACC = 3.3V
( Pin 5 of N104)
Check
X450, V451, R454,
R310, V489 and C459
Check
VB=3.7V (pin 1 of N104),
When
VACC_CTRL=HIGH
(pin 3 of N104)
Fault in D300
or N104
Check
N104, C129, C139, C116,
R310, V489
Yes
No
No
Yes
Test again with Win-
tesla
Fail in WinTesla
accessory power
out test
Figure 15.