Marantz DR-5000 Sevice Bulletin

Date: 15-Dec-00 Model: SR5000

REF.NB

MZ00-013

SERVICE BULLETIN

Circulation: Application:

x for information

customer complaint in
case of service
mandatory

...................

[

PHENOMENON

]

MZxx0032xxxxxx

And earlier

Page: 1/1
Subject:

Improvement for reliability of Power amp circuit

Int.ref:

Blown Power Transistor at Power amp circuit.

[REASON]

Unstable idle current at the power amp section and low sensitivity of speaker protection circuit.

[

SOLUTION

Replace the resistor R

]

641, R642, R643, R644 and R645

to

220 ohm 1/4W (4822 050 22201,

GD05221140).

Replace the resistor

R616, R617, R618, R619 and R620

to

30k ohm 1/6W (9965 000 02635,

GD05303160)

Replace the resistor

R681, R682, R683, R684 and R685

to

1.5k ohm 1/6W (4822 116 52243,

GD05152160)

[

REMARK

]

This improvement has been done in the production line after the year and week code “0033” and
later. The year and week code are mentioned in the serial number label on the rear panel. (ex.
MZxx0033xxxxxx)

Approved by Y. Okabe Written by K. Ono

Date: 16-Mar-01 Model: SR5000

REF.NB

SERVICE BULLETIN

Circulation: Application:

x for information

customer complaint in
case of service
mandatory

...................

[

PHENOMENON

]

Page: 1/1
Subject:

Part code number missing (POS. NO. 1).

ALL

Int.ref:

The part code number (for PCS 12NC) of WINDOW FIP (POS.NO.1) is missing.

POS. NO VERS.

PART NO.(PCS) DESCRIPTION PART NO.(MJI)

COLOR

1 /N1 <missing> WINDOW FIP 285W158010

[

CORRECTION

]

Please add to the part code number for PCS (9965 000 07568) as follows.

MZ01-005

POS. NO VERS.

PART NO.(PCS) DESCRIPTION PART NO.(MJI)

COLOR

1 /N1 9965 000 07568 WINDOW FIP 285W158010

Approved by H. Tamura Written by K. Ono