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Ricoh Aficio IS420 Service Manual page 71

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Table of Contents

October 9th, 1995

REMOVAL AND REPLACEMENT

PCBs

5.4.3. MBU

[A]

G404R524.wmf

First, remove the lens block assembly (see section 5.3.7) and the SCU assembly (see

section 5.4.1.)

[A]: MBU (4 screws; 4 connectors; 2 flat cables)

5.4.4. PSU

[B]

[A]

G404r525.wmf

First, remove the front shield plate and rear shield plate (see section 5.3.5).

[A]: Power Switch Cable

[B]: PSU (4 screws; 2 connectors)

5-21

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