Harman Consumer Group AVR75/85, Technical Manual

Page: 114 / 204

7 8
Harman Kardon
Dolby Digital Audio/Video Receiver
AVR75/85
AVR75 (120V) SCHEMATIC DIAGRAM 6 of 8 (VOLTAGE AMP PCB - P714, MAIN PCB - P704, SURROUND AMP PCB - PP04,
SPEAKER TERMINAL PCB - P754, HEADPHONE PCB - PW04, SPEAKER PROTECT PCB - PN54, STANDBY PCB - PB04, POWER SWITCH PCB - PU94)
H G F
F G H
E D C B A
A B C D E
L M K J I
L M I J K
AVR75 US 120V
Schematic 6 of 8
TEST VOLTAGES SHOWN IN RED
0
0
1.3
0
0 0
1.0
0
-7.4
1.0
21.4
21.6
16.2V
8.0V
8.0V
16.2V
21.5 1.0
21.7
20.8
21.6
43.0
28.1
14.0
+44.3V
-44.1V
+44.3
+44.3
-0.1
+43.3
-43.0
-0.1
-0.1
-0.1
-41.8
-41.9
0.6 0.7
43.4
-0.4 42.7
43.2 44.3
-44.1 -43.0
-5.2
-26.2
15.2
21.6
-21.3
-7.4
15.1
-15.1
-15.3
5.0
5.0 9.3
-10.0
-4.9
AC 17.0
AC 8.1
0.0
AC 8.1
AC 18.0
AC
34.0V
AC
33.1V0
0V
AC
33.1V
AC
34.0V
+44.3V
-44.1V
1.2
-1.2
-0.6
1.2
-1.2
-0.6
1.2
-1.2
-0.6 -0.6
0.4
0
1.2
42.5
0.6
43.2
0.6
0 0
0
0
43.4
-43.0
-43.0
0 0
-0.6
-0.6
-42.3
-1.2
0.4
0
-0.6
0.6
1.2
42.5
43.2
0.6
0
0
43.2
43.4
0
0
-43.0
0 0
-0.6
-43.0
-42.3
-0.6
-1.2
0
0.4
-0.6
-0.6
-1.2
-42.3
-0.6
-43.0
0 0
-43.0
0
0
43.4
0
0
43.2
43.2
0.6
42.5
1.2
0.6
19.6
-39.8
21.5
19.9
5.6
19.9
-33.8
-25.0
-25.0
5.6
5.6
-0.7
0
0
-0.6
0
-0.6
0
0
0
-1.3
-40.2
-42.3
-43.0
-42.3
-5.2
-5.2
21.3
0
0.4
-1.0
0 0
-0.6
1.2 -1.2
-40.7
-41.3
-42.0
-42.0
1.2
1.2
42.1
41.4
40.8
42.1
41.5
-42.0
-1.2
1.2
-40.7
-41.3
-42.3
-42.3
-43.0
-40.2
-1.3
-1.0
0 0
-0.6
1.2 1.2
41.5
42.1
40.8
41.4
42.1
-42.0
-1.2
1.2
-40.7
-41.3
-42.3
-43.0
-42.3
-40.2
-1.3
-1.0
0 0
-0.6
41.5
42.1 40.8 41.4
1.2
1.2
42.1
15.0
-15.0
0
0
0
0
0
0
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