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Extracted text from Marantz PM 4200 Service Bulletin (Ocr-read)
Page 1
Approved by M.KIMURA Written by S.NAGAO
AQ-19 2 817/additional rule 3 (first edition2002-03-12) Date:17-Jul.-2002Model:PM4200Page:1/2REF.NBR:MZ02-009revisionCirculation:Application:Subject:Int.ref:[PHENOMENON]
The MUTE LED sometimes blinks and the sounds from output intermit.
[CAUSE]
Contact error between the bracket (Pos. No. 30) and the ground of INPUT/AMPLIFIER PCB (Pos. No. 29).
[SOLUTION]
(Revision)
Repair work was changed. This work is done without removing a circuit board.
Contact to the ground certainly by the wire with the lug.
Please refer to the processing figure of the next page and correct.
[NECESSARY PART]
The wire with the lug: (MJI Part No. YB00091620 or similar product)
[REMARKS]
This improvement has been done in the production line after.
The serial number MZ000149006651 and later. (PM4200/N1B/N2B)
The week code number MZxx0203xxxxxx and later. (PM4200/N1G/N2G)SERVICE BULLETIN
Problem with incorrect operation of MUTE.xfor information customercomplaint in case of service
mandatory
...................See below
Page 2
REF.NBR: MZ02-009 Page 2/2 Processing figure (Part side view)
Solder the wire to the ground side lead of the R922 or R929D374Add the wire with the lug
(MJI Part No. YB00091620 or similar product)Fastens the lug by the screw
