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Genius GM56USB User Manual

Genius GM56USB
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Service Manual
Chapter 2. Testing Procedures
A. Testing Flow Chart
Check U1
Pin 1
REPLACE U1
T
T
F
F
Check U1
Pin 3
T
Check
Working FR.
T
Check IC1
Pin41
T
F
F
F
REPLACE K4
REPLACE C5,IC1
REPLACE K1,IC2
RESOLDER R8,R9
REPLACE U1,IC2
Check K4
Pin 4
END
START
Version 1.0
Page 3
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Genius GM56USB Specifications

General IconGeneral
BrandGenius
ModelGM56USB
CategoryModem
LanguageEnglish