DOWNLOAD Harman Kardon AVR 137 Service Manual ↓ Size: 17.82 MB | Pages: 87 in PDF or view online for FREE

Model
AVR 137
Pages
87
Size
17.82 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
avr-137.pdf
Date
PREV: Harman Kardon AVR 135 (serv.man12) User Manual / Operation Manual

Harman Kardon AVR 137 Service Manual ▷ View online

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AVR137/230 Service Manual
Page 77 of 87
AVR 137/230
harman/kardon
AVR137/230 Service Manual
Page 78 of 87
AVR 137/230 BLOCK DIAGRAM
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AVR137/230 Service Manual
Page 79 of 87
AVR 137/230 wiring diagram
AMPLIFIER SECTION BIAS ADJUSTMENT
Measurement condition
.No input signal or volume position is minimum.
Standard value
.Ideal current = 48mA (± 5%)
.Ideal DC Voltage = 25.92mV  (± 5%) 
CUP11911Y (MAIN PCB)
DC VOLTMETER  ; Connect to   
  CN66(SL),CN61(CEN),CN64(SR),CN63(FL),CN65(SBL/SL(AVR132,144,145)),CN62(FR),CN67(SBR)
CN61
CN65
Adjust for
Adjustment
25.92mV  (± 5%) 
CN64
25.92mV  (± 5%) 
25.92mV  (± 5%) 
25.92mV  (± 5%) 
25.92mV  (± 5%) 
CN63
CN62
Channel
Front Left
Front Right
Center
Surround Left
Surround Right
4
5
NO.
1
2
3
CN61
 
VR32
CN64
 
VR33
CN63
 
VR34
CN65
 
VR35
CN62
 
VR36
+
-
DC EVM
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AVR137/230 Service Manual
Page 80 of 87
AVR 137/230
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