Read Panasonic SA-AK270EB / SA-AK270EG Service Manual online
21.1. IC2801 (RFKWAK270PL)
System Microprocessor
Pin No.
Mark
I/O
Function
1
Lvl Meter
O
Level Meter
2
NC
-
NC
3
NC
-
NC
4
RDS_Dat
I
RDS Data Input
5
RDS_CLK
I
RDS CLK Input
6
NC
-
NC
7
F_HOP
O
F_Hop for Digital Amp
8
BYTE
-
External Data Bus Width Select
Input (Connect to Ground)
Input (Connect to Ground)
9
EFP_CNVSS
-
Flash Mode Terminal
10
Xcin
-
32.768 kHz Sub Clock
11
Xcout
-
32.768 kHz Sub Clock
12
EFP_RESET
-
/RESET Input (Active L)
13
Xout
-
10 MHz Main Clock
14
Vss
-
Ground (0V)
15
Xin
-
10 MHz Main Clock
16
VCC
-
Power Supply (+3.3V)
17
/NMI
-
Connected to vcc (+3.3V)
18
RMT
I
Remote Control Input
19
BLKCK
I
CD Block Clock Input
20
SYNC
I
AC Failure Detect Input
21
Tuner OUT/ST
O
Serial Output Data
22
Tuner IN
I
Serial Input Data
23
PLL_CLK
I/O
Tuner PLL CLK
24
SW_LVL1
-
NC
25
SW_LVL2
-
NC
26
PLL_SD
I
Tuner CE
27
MUTE_F
O
DAMP MUTE_F
28
MUTE_S
O
DAMP MUTE_S
29
USB SCL
I/O
USB I2C clock line
30
USB_SDA
I/O
USB I21C data line
31
IPOD_TXD
-
NC
32
IPOD RXD
-
NC
33
USB_RST (CLK)
O
USB reset pin. (Flash Clock for
on board writer)
on board writer)
34
BUSY
I
Flash Busy for On board writer
35
ASP_DAT
I/O
ASP DATA
36
ASP_CLK
I/O
ASP_CLK
37
HP_SW
I
Headphone SW
38
PA_SW
I
Music Port SW
39
MUTE_DA
O
For Digital Amp Mute
40
MUTE_A
O
Audio Mute
41
EE_CS/EFP/EPM
O
EEPROM chip select (Flash
EPM for On board writer)
EPM for On board writer)
42
EE_CLK
O
EEPROM clock
43
EE_DAT
I/O
EEPROM data
44
DCDET
I
DC detect input
45
SMPS_BP
O
SMPS Beat Proof
46
SMPS_PCONT
O
Main transformer control output
47
DC DET 1
I
DC detect input 1
48
Deck Photo
I
Deck Photo
49
Deck Motor
I/O
Deck Motor, L=OFF
50
Deck Plunger
O
Deck Plunger
51
DMT
O
Deck Mute L= Mute Off, H=
Mute On
Mute On
52
DECK REC
I/O
H when record circuit is
operating
operating
53
VOL_LED
O
Volume LED
54
FL_CLK
O
Serial Clock to FL driver
55
FL_DOUT
O
Serial Data to FL driver
56
FL_CS
O
FL driver CS
57
BASS_JOG1
I
Bass Jog 1
Pin No.
Mark
I/O
Function
58
BASS_JOG2
I
Bass Jog 2
59
VERR
I/O
verify error for USB version up
using CD
using CD
60
MMOD0
I/O
Micon mode switching for USB
version up
version up
61
TERR
I/O
Time Out Error for USB
62
VCC
-
Power Supply (+3.3V)
63
DBASS LED
-
NC
64
VSS
-
Ground (0V)
65
CCW
O
CRS1 CCW
66
CW
O
CRS1 CW
67
ST SW
I
CRS1 ST SW
68
OPEN SW
I
CRS1 Open SW
69
CLOSE SW
I
CRS1 Close SW
70
PLAY SW
I
CRS1 Play SW
71
PLUNGER
O
CRS1 PLUNGER
72
UD SENSOR
I
CRS1 UD Sensor
73
Bottom SW
I
CRS1 Bottom SW
74
USB_REQ
I
USB request
WR Start
I/O
Write start flag for USB version
up.
up.
75
STATUS
I
CD Servo LSI status input
76
MLD
O
CD Command load output
77
MDATA_Out
O
CD Command data output
78
MCLK
O
CD Command CLK output
79
/Reset_SW
I
CD limit SW Input for the most
inner point (activeLow)
inner point (activeLow)
80
HOME_SW
I
Home SW for CRS1
81
CD RST
I/O
CD reset Output
82
NC
I
NC
83
NC
-
NC
84
NC
-
NC
85
DECK_EJECT
I
Deck Eject button
86
CS
I
Chip Select pin
87
NC
-
NC
88
NC
-
NC
89
REG
I
Region Setting
90
VOL_JOG
AD
Volume Jog
91
NC
-
NC
92
Key 3
I
Key 3 Input
93
Key 2
I
Key 2 Input
94
Key 1
I
Key 1 Input
95
DECK_AD1
I
Deck AD Input 1
96
AVSS
-
Analog power supply input
(Connect to GND)
(Connect to GND)
97
DECK_AD2
I
Deck AD Input 2
98
Vref
-
Reference for AD (3.3V)
99
Avcc
-
Analog power supply input
100
DEMO_SEL
I
(H= default demo ON, L= default
demo OFF)
demo OFF)
21.2. IC6601 (C0HBB0000057) FL
DISPLAY
Pin No.
Mark
I/O
Function
1
P0
-
NC
2
P1
-
NC
3
P2
-
NC
4
P3
-
NC
5
OSC
I
Oscillator Input
6
NC
-
NC
7
DIN
I
Data Input
8
CLK
I
Clock Input
9
STB
I
Serial Interface Strobe
21 Terminal Function of Integrated Circuits
104
SA-AK270EB / SA-AK270EG
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