Sledgehammer Test - Motorola i425e Detailed Service Manual

TROUBLESHOOTING: SLEDGEHAMMER Test
3.6

SLEDGEHAMMER Test

Use this test to check the SLEDGEHAMMER circuitry.
Check
L653 for
2.775 Vdc (V2-RX).
Is
the voltage
at L653
correct ﾱ10%
?
Pass
Is the
voltage at R669
2.775 Vdc
(V2_
Pass
Is the
voltage at E601
and R6011 at 1.875
Vdc
ﾱ10%?
Pass
Is the
voltage at E955
(SF_OUT) at 2.56 Vdc
ﾱ10%
Pass
Continued
on next
page
72
Go to the
Fail
test flowcharts for
voltage regulator
verification.
Go to the
Fail
test flowcharts for
voltage regulator
verification.
Go to the
Fail
test flowcharts for
voltage regulator
verification.
The problem is in the
Fail
SLEDGEHAMMER.
Repair or replace, as
necessary.
6880401P26-O