Read Harman Kardon AVR 200 (serv.man9) Service Manual online
< CPU PIN DISCRIPTION >
uPD780206GF QFP TYPE
Pin No
Pin Name
I/O
ACTIVE
PORT NAME
R E M A R K
1
Vdd
-
H
+5V
SYSTEM POWER SUPPLY
2
P37
I/O
H
SDA
EEPROM DATA
3
P36
O
H
SCL
EEPROM CLOCK
4
P35
O
H/L
PWR_LED(RED)
L : Amber L : Green H : Red
5
P34
O
H/L
PWR_LED(GRN)
L : STBY H : OPER L : PROT
6
P33
I
L
POWER DOWN
POWER OFF : "L"
7
P32
I
L
PROTECT
PROTECT DETECT : "L"
8
P31
I
H/L
HEADPHONE ON/OFF
HEADPHONE ON: "H" OFF:"L"
9
P30
O
H
POWER RELAY
POWER ON : "H"
10
RESET
I
L
SYSTEM RESET
LOW RESET
11
X2
-
-
MAIN OSC
MAIN SYSTEM OSCILLATION
12
X1
I
-
4.19MHz
13
Vpp
-
L
Connect to Vss
14
XT2
-
-
OPEN
NOT USED
15
P04
-
L
GND
NOT USED
16
Vdd
-
H
+5V
SYSTEM POWER SUPPLY
17
P27
O
H
6-CH LED
6-CHANNEL LED
18
P26
O
H
FREQ2
32KHz, 44.1KHz, 48KHz
19
P25
O
H
FREQ1
88.1KHz, 96KHz
20
P24
O
H
FREQ0
21
P23
I
H
AC3 ERROR FLAG
DIGITAL INPUT?
22
P22
O
H
AC3 CLOCK
AC3 CLOCK
23
P21
O
H
AC3 SO
AC3 SERIAL OUTPUT
24
P20
O
H
AC3 SI
AC3 SERIAL INPUT
25
Avss
-
L
GND
ANALOG GROUND
26
P17
O
H
LC7821/3 DATA
COMMON DATA
27
P16
O
H
LC7821/3 CLK
COMMON CLOCK
28
P15
I
H/L
IF IN
IF COUNTER IN
29
P14
O
H
PLL DATA
30
P13
O
H
PLL CLOCK
31
P12
O
H
PLL CE
14
AVR100 / AVR200
Click on the first or last page to see other AVR 200 (serv.man9) service manuals if exist.