Motorola i897 - DC Distribution (V1) Test

TROUBLESHOOTING: DC Distribution (V1) Test
3.14 DC Distribution (V1) Test
Check C721 for 2.775Vdc
Check for US, DFP, etc.
Repair, as necessary.
Is
2.775 Vdc
present at
the parts
?
Check FILT_B+
(3.6 Vdc)
at C900 or C901.
Go to
FILT_B+
flowchart.
Is
3.6 Vdc
present
?
Replace U700B7
ROADRUNNER
Fail
Pass
Pass
Fail
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6880401P59-O