Harman Kardon hk3370 Service Manual page 72

hk3370/hk3470
2. Pin Description
uPD780204GF QFP Type
Pin No. Pin Name I/O ACTIVE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 P04/XT1
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
Vdd - H
P37 I H
P36 I H
P35 I H
P34 I H
P33 - -
P32 - -
P31 O H/L
P30 O H/L
RESET I L
X2 - -
X1 I -
Vpp - -
XT2 - -
I H/L
Vdd - H
P27 - -
P26 - -
P25 I L
P24 O H
P23 O H
P22 O H
P21 I L
P20 O H
AVss - L
P17 O H
P16 O H
P15 I H/L
P15 O H
P13 O H
P12 O H/L
P11 I L
P10 I L
Avdd - H
Avref - L
P03 - -
INTP2 I L
P01 I H
P00 I L
Vss - L
P74 O H/L
P73 O H/L
P72 - -
P71 - -
P70 - -
Vdd - H
PORT NAME
+5V
KR4
KR3
KR2
KR1
-
-
PWR_LED(RED) L:AMBER L:GREEN H:RED
PWR_LED(GRN) L:STBY
System reset
OSC
OSC
Conneced to Vss
-
OPT_RDS
+5V
PWR DOWN
PWR_RLY
VR_UP
VR_DOWN
PROTECT
PWR_MUTE
GND
PRE_MUTE
TUNER_MUTE
IF_IN
PLL CE
PLL CLOCK
PLL DATA
TUNED
STEREO
+5V
GND
RDS CLK
RDS DATA
REMOCON IN
GND
78211 CLK
78211 CE
+5V
72
harman/kardon
REMARK
System power supply
Key read 4
Key read 3
Key read 2
Key read 1
Not used
Not used
H:OPER L:PROT
Low reset
Main system osc.
-
Not used
Rds on/off
System power supply
Not used
Not used
Detect power off
Power Relay on/off
Volume up
Volume Down
Detect protection
Power Mute
Analog ground
Pre mute
Tuner mute
IF conter in
Tuned in on : L
Stereo in on : L
Analog power supply
Not used
Rds clock in
Rds data in
Remocon data in
Ground
Not used
Not used
Not used