9-6

Troubleshooting Charts: DC Supply Failure

 

 

 

DC Supply Failure—Page 2

1

Check Voltage

at B502

(VOCON)

Voltage

No

Check R502,

= 3.77V+/-5%?

C506, L502,

 

 

 

 

and D503

 

Yes

 

 

 

 

 

 

 

 

 

Check Voltage

 

 

at R501

 

 

Voltage

No

Check R501,

= 1.85V+/-5%?

D502, L501,

 

 

 

 

and C504

 

Yes

 

 

 

 

 

 

 

 

 

Check Voltage

 

 

at R560

 

 

Voltage

No

2

= V2?*

 

*per Standard Bias Table

Yes

3

Components Yes

OK?

No

Replace

Problem

Component2

Components

Yes

ReFLASH

HOST C

 

OK?

 

 

Code

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace

Fixed?

Yes

Problem

 

End

 

Component

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

Replace

 

 

 

U501

 

 

 

(GCAP II)

 

 

MAEPF-27392-C

November 11, 2004

6881094C12-A

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Image 110
Motorola SSETM 5000 service manual Host C