Marantz SR-6200 Sevice Bulletin

Date:

15-May-2003

Model:

Page:

Int.ref:

SERVICE BULLETIN

Subject:

SR5200/SR6200/SR7200

1/2 REF.NBR: MZ02-033

Circulation: Application:

x for information

customer complaint
in case of service

See below

mandatory

[ PHENOMENON]

Hum noise can be heard from Headphone out

[REASONS]

Caused by ground loop of the headphone out.

[SOLUTION]

Please apply the following solution.

Hum noise can be heard from Headphone out.

Cut a jumper J118

Main PCB

Connect the GND (at J118) to the chassis
by the earth rug.

Approved by H.TAMURA Written by K.ONO

[REMARKS]

This solution has already been applied in the production after the serial numbers below.

SR5200/N2B MZ020149006031 and after
SR5200/N2G MZ020149004426 and after
SR5200/U2B MZ020149003041 and after
SR5200/K2G MZ020149003041 and after

SR6200/N2B MZ020149003531 and after
SR6200/N2G MZ020150002446 and after
SR6200/U2B MZ020149004311 and after
SR6200/K2G MZ020150001666 and after

SR7200/N2B MZ010148002426 and after
SR7200/N2G MZ010148002781 and after
SR7200/U2B MZ010148008211 and after
SR7200/K2G MZ010149000681 and after

MZ02-033 Page 2/2

Approved by H.TAMURA Written by K.ONO

Date:

15-May-2003

Model:

SR5200/SR6200/SR7200

Page:

Int.ref:

SERVICE BULLETIN

1/6 REF.NBR: MZ02-032

Subject:

Circulation: Application:

Pop noise

x for information

customer complaint
in case of service

See below

mandatory

[ PHENOMENON]

Pop noise appears when stop playing or track skip on CD playback with Digital connection.
Pop noise appears in the condition of the Main volume is changed 74dB to 75dB(Mute) .

[SOLUTION]

Please apply the modifications as mentioned in page 2 to page 6.

[Caution] Modifications are deferent with version of the P.C.Board.
Please confirm the version of the P.C.Board

* Version 1 P.C.Board (7020 06076 001-0) : Please apply the modification mentioned on Page2 to 4.
* Version 2 P.C.Board (7020 06076 001-3) : Please apply the modification mentioned on Page5 to 6.

[REMARKS]

This solution has already been applied in the production after the serial numbers below.

SR5200/N2B MZ020149006031 and after
SR5200/N2G MZ020149004426 and after
SR5200/U2B MZ020149003041 and after
SR5200/K2G MZ020149003041 and after

SR6200/N2B MZ020149003531 and after
SR6200/N2G MZ020150002446 and after
SR6200/U2B MZ020149004311 and after
SR6200/K2G MZ020150001666 and after

SR7200/N2B MZ010148002426 and after
SR7200/N2G MZ010148002781 and after
SR7200/U2B MZ010148008211 and after
SR7200/K2G MZ010149000681 and after

Approved by H.TAMURA Written by K.ONO

MZ02-032 Page 2/6

* Version 1 P.C.Board (7020 06076 001-0) : Please apply the modification mentioned below (Page2 to 4).

Version1 P.C.B.

Replace R582 (7 pcs) 470k ohm to 68k ohm
(Parts #: NN05683610).

Replace R549 (7pcs) 470k ohm to 100k ohm
(Parts #: NN05104610).

Approved by H.TAMURA Written by K.ONO

Replace/change the condenser C502 (7pcs) 100pF to
the resister 100k ohm (Parts #: NN05104610)

MZ02-032 Page 3/6

Remove R543/R544/R545/R546/R547 and C505.

Approved by H.TAMURA Written by K.ONO