Read Harman Kardon AVR 85 (serv.man3) Service Manual online
6 5
Harman Kardon
Dolby Digital Audio/Video Receiver
AVR75/85
INTEGRATED CIRCUIT DIAGRAMS 5
QM09: PM4007A
RF DEMODULATOR
Demoduration
SYNC
Detection-
Safeguard
S/P
Address
SRAM
32K x 8
Error
Correction
Timing
DAI
Control
SW
1/2048
Divider
1/2
Phase
Comparator
46.08 MHz
Oscillator
VCXO
18.432 MHz
LPF
46.08 MHz
9 KHz
9.216 KHz
QPSK Input
CPIN
CMIN
DOUT
DOUTB
PDDIS
PDO
VI
VO
RESET
OSCON
C9M MUTI
DAIN
Serial data stream output
DAOUT
MUTO
C1F0
C1F1
C2F0
C2F1
WEB
OEB
DB(7:0)
A(14:0)
1
GND
-
GND
2
VDD
-
+5VD
3
RESET
I
System Reset At "L" reset
4 OSCON
I
Oscillator Control
At "H" during normal operation At "L" during standby
5
DATA
I
TEST
6
MCK
I
TEST
7
MLTB
I
TEST
8
IDST
O
TEST
9
IDCK
O
TEST
10
IDO
O
TEST
11
TM0
I
TEST
12
ECCK
O
TEST
13
DEN
O
TEST
14
DRY
O
TEST
15
MSYC
O
TEST
16
TM1
I
TEST
17
A0
O
RAM A0
18
A1
O
RAM A1
19
A2
O
RAM A2
20
A3
O
RAM A3
21
A4
O
RAM A4
22
A5
O
RAM A5
23
TM2
I
TEST
24
TM3
I
TEST
25
XOUT
O
TEST
26
XIN
I
TEST
27
XENT
I
TEST
28
GND
-
GND
29
VDD
-
+5VD
30
A6
O
RAM A6
31
A7
O
RAM A7
32
GND
-
GND
33
VDD
-
+5VD
34
A12
O
RAM A12
35
A14
O
RAM A14
36
WEB
O
RAM WEB
37
A13
O
RAM A13
38
A8
O
RAM A8
39
A9
O
RAM A9
40
GND
-
GND
41
A11
O
RAM A11
42
OEB
O
RAM OE
43
A10
O
RAM A10
44
DB7
B
RAM D7
45
DB6
B
RAM D6
46
DB5
B
RAM D5
47
DB4
B
RAM D4
48
DB3
B
RAM D3
49
DB2
B
RAM D2
50
DB1
B
RAM D1
No. Name
I/O
Function
51
DB0
B
RAM D0
52
VDD
-
+5VD
53
GND
-
GND
54
TI1
I
TEST
55
VIN
I
VCXO input
56
VOUT
O
VCXO output
57
TI2
I
TEST
58
TI3
I
TEST
59
TLDB
I
TEST
60
TCK
I
TEST
61
TRP
O
TEST
62
TDO
O
TEST
63
PDO
O
Phase comparator output (3-state)
64
TI4
I
TEST
65 PDDIS
I
Control input for PDO out At "L" Output ON
66
MUTO
O
Muting output. Mutes at "H."
Sets to "H" when MUTI = H or the AC-3 period cannot be received.
67
TI5
I
TEST
68
VLDY
70 DAOUT
O
Digital OUT (serial data stream output)
71
DAIN
I
Digital external input: Sets to DAOUT when DASEL is at "H"
72 DASEL
I
Selects digital OUT
73
TI8
I
TEST
74
C2F1
O
N.C.
75
C2F0
O
N.C.
76
C1F1
O
N.C.
77
C1F0
O
Displays C1 correction error status. Outputs error count at C1.
78
MUTI
I
Muting input. Mutes at "H."
79
VDD
-
+5VD
80
GND
-
GND
81
AVDD
-
+5VD
82
CPIN
I
Analog converter inverted input
83
CMIN
I
Analog converter inverted input
84
AGND
-
GND
85
TM4
I
TEST
86
VDD
-
+5VD
87
DIN
I
TEST
88
DOUT
O
Analog converter inverted input
89 DOUTB
O
Analog converter inverted reverse output
90
C9M
O
N.C.
91
GND
-
GND
92 WINGT
O
TEST
93 SYST0
O
TEST
94 SYST1
O
TEST
95 ADST0
O
TEST
96 ADST1
O
TEST
97
TM5
I
TEST
98 BUNRI
I
TEST
99
AGND
-
GND
100 AVDD
-
+5VD
O
TEST
69 DASYO
O
TEST
No. Name
I/O
Function
Q201: LA1836
FM/AM IF, MPX
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
AM
FM
AM
MIX
AM
OSC
ALC
BUFF
AM
RF AMP
AGC
S METER
AM
IF
AM
DET
LEVEL
DET
S-CURVE
FM IF
FM
DET
AM/FM
IF
BUFF
COMP
TUNING
DRIVE
REG
GND
VCC
AM/FM
SW
PHASE DET
VCO
FF
FF
FF
PILOT
DET
DECODER
ANTI SIROIE
STEREO
DRIVE
STEREO
SW
TRIG
MUTE
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