Harman Kardon HKTS 7 (serv.man14) Service Manual / Technical Bulletin ▷ View online
harman/kardon
Service Bulletin
HKTS7/230
Service bulletin # HK2004-001
To:
All harman/kardon Service Centers
Models:
HKTS7/230 (under serial number
ME0487-08199)
Subject:
low pass filter cut-off frequency
In the event you receive a HKTS7 sub with the complaint: “the low pas filter cut off frequency is 45Hz and not
as specify, do following modification.
Action: Resistors need to be changed on the JACK PANEL PCB
Parts needed:
2 X 30K
Part number: use local supplier
1 X 10K
Part number: use local supplier
1 X 12K
Part number: use local supplier
Location No:
R223 & R224: change from 51K to 30K
R226: change from 27K to 10K
R227: change from 27K to 12K
R226: change from 27K to 10K
R227: change from 27K to 12K
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