Harman Kardon HK 990/230 Service Manual page 112

+3.3V +3.3V
D5
BAS16
+5VSTBY C74
10uF/50V
R94
10K
R98
1
10K
R103
1 Q15
2SC2406
10K
R106
10K
INT1#
INT2#
AMP_FAULT#
HP_DETECT#
INT_AK4683
I2C_SCL
I2C_SDA
+5VSTBY
J12
6
GPIO_FAV
5
4
3
2
1
R108
6P(2.0)
10K
Standby# from front MCU
TxD from front MCU
RxD to front MCU
R90
4K7
J9
R92
Barrette 6P
10K
1
+3.3V 2
R93
3
470R
4
5
6
Q12
2SC2406
+3.3V
U17
PIC18F66J10
+3.3V
7
MCLR
24
RA0/AN0
23
NJU7313_SCK RA1/AN1
22
NJU7313_SDO RA2/AN2/Vref-
21
NJU7313_CS RA3/AN3/Vref+
28
RA4/TOCKI
27
RA5/AN4
48
RBO/INT0/FLT0
47
RB1/INT1
46
RB2/INT2
45
RB3/INT3
44
RB4/KBI0
GPIO_BUTTON 43
RB5/KBI1
42
RB6/KBI2/PGC
R53 37
RB7/KBI3/PGD
10K
30
RC0/T1OSO/T13CKI
29
RC1/T1OSI/ECCP2/P2A
33
GPIO_FAV
RC2/ECCP1/P1A
R81 27R 34
RC3/SCK1/SCL1
R82 27R 35
RC4/SDI1/SDA1
36
RC5/SDO1
31
RC6/TX1/CK1
+3.3V 32
RC7/RX1/DT1
R104 39
CLK_24MHZ OSC1/CLKI
10K 40
OSC2/CLKO
18
AV3.3V ENVREG
+3.3V
SW1
5mm(PUSHBUTTON)
GPIO_BUTTON
R99
10K
+3.3V
+3.3V
FB1
FB2
FB0805
FB0805
C41 C73
47uF/25V
47uF/25V
C68
100nF
+3.3V
C69
100nF
C64
10uF/50V
C65
100nF
58
RD0/PSP0
55
RD1/PSP1
54
RD2/PSP2
53
RD3/PSP3
52 R78 27R
RD4/PSP4/SDO2
51
RD5/PSP5/SDI2/SDA2
50 R79 27R
RD6/PSP6/SCK2/SCL2
49
RD7/PSP7/SS2
2
RE0/RD/P3D
1
RE1/WR/P2C
64 RELAY_MC_MM#
RE2/CS/P2B
63 RELAY_MIC
RE3/P3C
62 PREOUT_RELAY
RE4/P3B
61
RE5/P1C
60 DIRECT_ANALOG
RE6/P1B
59
RE7/ECCP2/P2A
3
RG0/ECCP3/P3A
4
RG1/TX2/CK2
5
RG2/RX2/DT2
6
RG3/CCP4/P3D
8
RG4/CCP5/P1D
17
RF1/AN6/C2OUT
16
RF2/AN7/C1OUT
15
RF3/AN8
14
RF4/AN9
13
RF5/AN10/CVREF
12
RF6/AN11
11
RF7/SS1
U15
ULN2003AD
1
1B 1C
2
2B 2C
3
3B 3C
4
4B 4C
5
5B 5C
6
6B 6C
7
7B 7C
9
+5V COM GND
CS_AD1955_1#
CS_AD1955_2#
CS_WM8740#
SDO
SCK
CS_VOL#
+5VSTBY
R95
22K
1
MUTE_LISTEN#
+5VSTBY
SPEAKER_A
SPEAKER_B
TRIG_AMP
R68
22K
R67
22K
1 Q9
2SA1035
Q10
1 BSS123
R66
10K
MC_MM#
+5V
16 1 K4C
RL_MIC
15 16 JRC-27F/005-M(555)
14
1
13
16 PREOUT_RELAY
12
K1C
11
JRC-27F/005-M(555)
10
8
1 K3C
16 JRC-27F/005-M(555)
RL_DIRECT
HEADPHONE_MICRO#
TO IR PCB
CN1
TX
3
2 GND
1 RX
3P(2.0)
R96
22K
1 Q18
2SA1035
1 Q19
Q20 2SA1035
BSS123 R91
R89 10K
SUB_MUTE_OUT
10K
R97
47K
-15VA
1 Q8
2SA1035
R65
10K
MUTE_OUT
R64
47K
-15VA