Motorola MTH500 Service Manual page 59

68P02963C70-O
DC Distribution (V2_2.775V) Test (Cont.)
A
Check Filt_B+ at
C640 or C652
for 3.6 Vdc
No
Is the voltage OK?
Yes
Check TP600 for
32 kHz clock with 2.775V
amplitude
Are frequency
and amplitude OK?
Yes
Check TP603
for the Reset high
Is Reset
high?
Yes
B
Replace U600 (GCAP III)
Replace
No
U600 (GCAP III)
No
Troubleshooting
3 - 9