Marantz SR-4500-2 Sevice Bulletin

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Marantz SR-4500-2 Sevice Bulletin

 

 

 

Date: 27-Sep-2004

Model: SR4500

 

 

 

 

 

 

SERVICE

BULLETIN

Page:

1 / 1

REF.NBR: MZ04-065

 

 

 

Subject:

 

 

 

 

 

 

 

 

 

 

 

 

 

Level

 

Application:

The reading accuracy improvement of the

 

 

 

 

 

 

 

 

See below

continuation code of the Remote Controller.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Int.ref:

 

 

 

 

 

 

 

 

[PHENOMENON]

 

 

 

 

 

A reading leak occurs in the continuation code of the Remote Controller. (It is especially UP / DOWN of the Volume.)

[REASONS]

The protection circuit operates by Impulse Noise.

[SOLUTION]

1.POS.NO R564 RESISTOR (47K OHM) is changed to RESISTOR 15K OHM +-5% 1/6W (Part no. 00MGD05153160 ) on the VIDEO PCB.

R564

[NECESSARY PART]

POS.NO R564 00MGD05153160 (15K OHM +-5% 1/6W)

This is “nsp” part, MARANTZ will not supply this part.

[REMARKS]

1. This problem apply to the following serial number.

SR4500/N1S

MZ000426000001 to MZ000426000520

SR4500/N1G

MZ000426000001 to MZ000426000628

2.This improvement has been done in the production serial number MZ000430xxxxxx and after.

3.The following model has improved from the top of mass production. SR4500/A1B/A1S, SR4500/N1B, SR4500/U1B/U1S, SR4500/K1G and SR4500/L1G.

Approved by S.NAGAO Written by

WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19)

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