Harman Kardon AVR 7000, Service Manual

Page: 27 / 163

harman/kardon
TECH TIPS
Troubleshooting tips and solutions to common service problems
For models:
AVR7000/7200/7300/8000
AVR100/200/300/500
AVR110/210/310/510
AVR120/220/320/520
AVR125/225/325/525
AVR130/230/330/430/630
AVR135/235/335/435/635
AVR10
DPR1001
DPR1005
DPR2005
HK3370/3470/3375/3475
HK3250 TIP# HKTT2003-01 Rev5
Subject: Backup Memory on AVR/DPR/HK series receivers
In the event of the complaint: “the receiver is losing its memory (any programmed system settings)
when the unit is turned off, or after the unit is unplugged (briefly*)”:
Check and replace:
Model Designator Location Description Part number
AVR10
C712
D709
Front PCB
0.047 Farad 5.5v capacitor
and 1N4148 diode #3439247315
#2058322101
AVR7000 C730 Front PCB 0.047 Farad 5.5v capacitor
# P10790-ND or
# J3432147324X
AVR7200 C106 Front PCB 0.047 Farad 5.5v capacitor # P10790-ND
AVR7300 C657 DSP PCB 0.047 Farad 5.5v capacitor # H01-CEZXA0479MN-5
AVR8000 C726 Front PCB 0.047 Farad 5.5v capacitor
# 55230310NR or
# P10790-ND
AVR100/200 C412 Front PCB 0.047 Farad 5.5v capacitor # CEGT-B473J-0J0
AVR300 C906 Front PCB 0.1Farad 5.5v capacitor
# J4433210421X
or # P10791-ND
AVR500 C906 Front PCB 0.1Farad 5.5v capacitor
# J4433210421X
or # P10791-ND
AVR110/210/310/510
AVR120/220/320/520
C216 Front PCB 0.047 Farad 5.5v capacitor # P10790-ND
AVR125/225 C734,C885 Front PCB two 0.1F capacitors in parallel # BCESOHD104
AVR325/525 C106 Front PCB 0.047 Farad 5.5v capacitor # P10790-ND
AVR130/230/330 BAT1 Front PCB 3.6v Battery # HABGP40BVH3A3H
AVR135/235/335 BAT1 Front PCB 3.6v Battery # HGP15BNH3A3H
AVR430/630 C657 DSP PCB 0.047 Farad 5.5v capacitor # CEZXA0479MN-5
AVR435/635 C557 DSP PCB 0.047 Farad 5.5v capacitor # H03-CEZXA0479MN-0
DPR1001 BC601 Main PCB 0.1Farad 5.5v capacitor # CEGT-B104J-0J0
DPR1005/2005 C437
Processor
PCB
0.047 Farad 5.5v capacitor # CEZXA0479MN-5
HK3370/3470 C301 Front PCB 0.1Farad 5.5v capacitor # CEGT-B104J-0J0
HK3375/3475 C301 Front PCB 0.1Farad 5.5v capacitor # CEGT-B104J-0J0
HK3250
C712
D709
Front PCB
0.047 Farad 5.5v capacitor
and 1N4148 diode #3439247315
#2058322101
* After approximately two weeks of being disconnected from AC supply, even a normally functioning receiver may
lose any programmed settings and switch to default settings. (Four weeks for the DPR1005 & 2005)
AVR7000 harman/kardon
27