Harman Kardon HK 980/230 - Microcontroller Unit (MCU) Schematic

R70 10K
R69 10K
R68 10K
R67 10K
R66 10K
R65 10K
R64 10K
R63 10K
R72
10K
C88
104
C89
104
R149
2.4K
R58
10K
R81
10K
R79
10K
R80
10K
R78
10K
R61 2.2K
R85
10K
R60 2.2K
R54
10K
R76
10K
R89 10K
DG ND
R59 10K
DGND
DG ND
1
2
3
4 5
6
7
8
IC2
AT 24C0 2AN- 10SI -2. 7
$
$
$
'* 1'
6' $
6& /
:3
9& &
DG ND
R77
10K
R75
10K
DG ND
R74
10K
R88 10K
R87
10K
R90 10K
R91
10K
R92 10K
R86
10K
R84
10K
P4.2
1
P1.0
2
P1.1
3
P1.2
4
P1.3
5
P1.4
6
P1.5
7
P1.6
8
P1.7
9
RESET
10
P3.0
11
P4.3
12
P3.1
13
P3.2
14
P3.3
15
P3.4
16
P3.5
17
P3.6
18
P3.7
19
XTAL 1
20
XTAL 2
21
GND
22
P4.0
23
P2.0
24
P2.1
25
P2.2
26
P2.3
27
P2.4
28
P2.5
29
P2.6
30
P2.7
31
PSEN#
32
AL E/PRO G#
33
P4.1
34
EA #
35
P0.7
36
P0.6
37
P0.5
38
P0.4
39
P0.3
40
P0.2
41
P0.1
42
P0.0
43
VCC
44
IC1
SM5964C40J(PLCC44)
C51
100U/16
C52
100U/16
C90
10U/16
R83 10K
R71
10K
5; '
7; '
MCU
R73
DE L
Z1
12MHz
C115
16PF
C114
16PF
DG ND
R230
680/0.25W
DG ND
C126
10U/50
DW 2
6C2
C127
47U/35
DW 3
1N4751A(30V)
D1
1N4001
C128
100U/50
DG ND
R231
RF 1/0.25W
C109
104
C113
104
C121
1000U/25
C120
1000U/25
C117
220U/25
C116
220U/25
C105
104
C106
104
I
1
G
2
O
3
IC20
KA78 15
O
3
G
1
I
2
IC21
KA 7915
+
AC2
-
AC1
BL2
2W06M
R207
RF/0.22/1W
R209
RF/0.22/1W
+15V
-15V
TO-22 0
TO-22 0
R208
RF/0.22/1W
DG ND
C110
104
C123
2200U/25
DG ND
C108
104
C119
220U/16
DG ND
I
1
G
2
O
3
IC19
KA 7812
DG ND
+5V
TO-22 0
+
AC2
-
AC1
BL1
2W06M
R206
10R/2W
C122
470U/25V
DG ND
I
1
G
2
O
3
IC18
KA 7805
DG ND
C107
104
C118
470U/10
DG ND
+12V
1
2
2
1
6
3
4
5
1
2
3
4
5
CN5
5P(2.5)
DG ND
1
2
3
1
2
3
Main
Transformer
3P3.96
TO Left Amplifier Bo ard
3P3.96
TO Rig ht Ampli fi er Board
1
2
2P7.92
To Fuse Board
TO-22 0
C112
104
I
1
G
2
O
3
IC22
KA 7805
DG ND
DGND
DG ND DG ND
C124
220U/10
C125
470U/25
DGND
C111
104
DG ND
MCU+5V
1
2
3
CN3
3P(2.0)
TO FUSE BOARD
POWER ON/OFF
GND
+VCC
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20
CN6
1.0D-20P
C104
104
Terminal Erth
E
FB1
FB0805
DGND
1
2 3
4
IC23
LT V817 A
Q3 9
FJN3303R
R156
1K
R82
10K
DW 1
HZ K5B
DG ND
R109
470
+5V
DG ND
SP_CTRL
SP1
SP2
RELAY_CTRL
+12V
OVER_LOAD
OVER_ZERO
AMP_MUTE
SP_CTRL
SP1
SP2
RELAY_CTRL
+12V
OVER_LOAD
OVER_ZERO
AMP_MUTE
1
2
3
4
5
6
7
8
CN1
8P(2.0)
TO R-CH AMP
TO L-CH AMP
+12V
DG ND
Q33
2SC3361
R112
47K
R107
470
DG ND
R55
10K
+12V
Q3 7
SS8550D
Q3 4
2SC3361
R113
47K
R108
470
DG ND
R56
10K
+12V
Q40
FJN3303R
DG ND
C14
104
DGND
Q3 6
SS8550D
C13
104
DGND
DG ND
VFD-DA
VFD-C LK
VFD-S T
VFD-RET
-30V
F1 F2
MCU+5V
4094-DA
4094-CLK
KEY- IN
ST B-KEY
VOL-A
VOL- B
IR
ST ANDB Y-LED P ON/VOL -LED
GND
TO DISPLAY BOARD
VO L-CS
VO L-DA
VO L-MUT E
AN _SW_ STB1
AN _SW_ CLK
AN _SW_ DATA
TO NE-D ATA
TO NE- LATCH
TO NE/V OL-CL K
TA PE-C UT
CDR-CUT
DIR ECT ON/ OF
R62
10K
R57 10K
MCU+5V
MCU+5V
MCU+5V
Software UPDA
R138
33
R139 33 R140 33
R141 33 R142 33 R143 33 R144 33 R145 33 R146 33 R147 33 R148 33
R132
33
R133
33
R134
33
R130
33
R131
33
KF-YL-03
P[1]
P[1]
P[1]
P[1]
P[1]
P[1]
P[1]
P[1]
P[1]
P[1]
P[1]
P[1]
R155
22K
Q3 8
2SA1162
R154
22K
MCU+5V
AMP- MUTE
P[2]
1
2
3
4
5
6
7
8
CN2
8P(2.0)
Pro OUT MUTE
P[1]
1 2 3
CN11
3P(2.0)
MCU+5V
REM
DGND
DG ND
MCU+5V
TO REM IN/OUT B OARD
Q2
2SC3361
Q3
2SA1162GR
R10
4.7K
R13
1.8K
R12
10K
D4
IN4148
D5
IN4148
C10
1U/50
R11
10K
DG ND
DG ND
1
2
3
SW1
SSYB-22D01-G2-0A
Normal
UPDA
DCD
1
RXD
2
TX D
3
DT R
4
GND
5
DSR
6
RTS
7
CTS
8
RI
9
JK5
6222-09-M-S0-U-01
SP2
SP1
AN _SW_ STB2
P[1]
+12V
D6
IN4148
R38
10K
+5V
R41
10K
R34
10K
Q4
2SC3361
DG ND
OVER HEAT
OVER_LOAD
R37
22K
Q5
2SC3361
DG ND
AMP -MUT E
P[1]
C39
22U/10
DG ND
C43
22U/10
DG ND
R218
4.7K
3
4
5
1
2
3
4
5
6
CN7
6P(2.5)
DG ND
harman/kardon
HK 980/230 Service Manual
Page 36 of 50