124
18 Terminal Function of ICs
18.1. IC2801 (RFKWMAK980PU): IC Microprocessor
Pin
No
Pin Name
I/O
Fucntions
1
SD_CMD
O Jupiter and CD communication
UART(TX)
2
SD_STAT
I Jupiter and CD communication
UART(RX)
3
SD_NRST
O Jupiter and CD Communication
line NRST
4
SD_INT/OCD_SDA
O Jupiter and CD Communication
line interrupt/ Micro P flashing
5
M.Port SW
I Detection of Mport Jack con-
nectivity . Hi - connect
6
OCD_SCL
O Flashing of microp communica-
tion line
7
HP SW
I Detection of Headphone Jack
connectivity . Hi - connect
8
DEMO
I Activation of Demo . Preset to
demo off
9
REG_A
I Country Region setting A
10
REG_B
- NC
11
MMOD
I Flashing of microp communica-
tion line
12
XTOUT
O Resonator Oscillation . 10Mhz
13
XTIN
I Resonator Oscillation . 10Mhz
14
VSS
- Ground
15
XI
I crystal clk Oscillation .32.7khz
16
XO
O crystal clk Oscillation .32.7khz
17
VDD33
- 3.3V supply
18
VDD18
- 3.3V supply
19
NRST
I Reset for mircop for programme
initialize
20
CR14_Mode_SW
I CR14 mode detection
21
CR14_Top_SW
I CR14 Top SW detection
22
CR14_UD_Sensor
I CR14 UD sensor detection
23
CR14_LO_F
O CR 14 loader motor fordward
movement
24
CR14_LO_R
O CR14 loader motor reverse
movement
25
CR14_Close_SW
I CR14 close sw detection
26
CR14_Home_SW
I CR14 Home sw detection
27
CR14_Open_SW
I CR14 Open sw detection
28
CD_OPEN_SW
O CD Open sw detection
29
CD Loading CCW
O CD loading counterclockwise
30
REG_C
I Country Region setting C
31
Ipod TX
- Not used
32
Ipod RX
- Not used
33
CD_RESET
O CD reset pin
34
CD loading CW
O CD loading clockwise
35
CD REST SW
I CD rest sw detection
36
EPR_CLK
O EEPROM communication line
37
VDD18
- 3.3V supply
38
EPR_DAT
O EEPROM communication line
39
VSS
- Ground
40
MIC_SW
I Detection of mic
41
EPR_CS
O EEPROM communication line
42
Option_PLAY
- Not used
43
Option_RSKIP
- Not used
44
option_FSKIP
- Not used
45
option_stop
- Not used
46
Option_DET1
- Not used
47
Option_DET2
- Not used
48
IPOD_DET
- Not used
49
ASP_DATA
O ASP commiunication line
50
ASP_CLK
O ASP commiunication line
51
DCdet1
I Detect of DAMP faulty
(F61)
52
DCdet2
I Detect of Power Supply &
SMPS faulty (F76)
53
SW-MUTE
O Muting for subwoofer
54
SW_LED
O SW LED control
55
SWJOGA
I Subbwoofer jog Level detect
56
SWJOGB
I Subbwoofer jog Level detect
57
NC
- Not used
58
MUTE A
O Muting control
59
SW_LVL1
O Subwoofer Level control
60
SW_LVL2
O Subwoofer Level control
61
Option Pwr
- Not used
62
CRTIMER
I CR timer pin
63
VSS
- Ground
64
MOD_DAMP
O To activate Damp . Active hi
65
FHOP
O To shift Damp switching freq
from interfernce to AM freq
66
MUTE
F
O To mute Damp for speaker
ouput muting
67
MUTES
O Not used
68
SMPS BP
O To shift SMPS switching freq
from intefernce to AM freq
69
WMUTE
- NC
70
WDET
I wireless detection
71
NC
- Not used
72
RDS DATA
- NC
73
RDS CLK
- NC
74
USB rec LED
O to activate LED blinking effect
when USB recording
75
Pcont
O To switch on all power sup-
ply.Active Hi
76
RDS_RDY
- Not used
77
Clip
Attn
O TO level down outoput to
reduce distortion. Active Hi
78
TU_STEREO
I Tuner stereo mode detection
line
79
TU_SDA
O Tuner communication line
80
TU_TUNED
I Tuner communication line
81
TU_CLK
O Tuner communication line
82
REG_D
I Country Region setting D
83
M.FUNC.LED
O Memory LED light up when
reading. Active Hi
84
M.REC.LED
O Memort rec LED light up when
recording to Memory. Active Hi
85
Sync/Halt
I Pulse wave from SMPS to
Detect of AC plug in or out
86
RMT
I Remote controller detection
communication line
87
BASS JOG2
I Detection of basss jog
88
BASS JOG1
I Detection of basss jog
89
VDD
- 3.3V supply
90
LED dimmer
O Dim down the LED when dim-
mer on . Active Lo
91
VSS
- Ground
92
Level meter
AD To detect signal level for LED
light up and light off
93
Clip cont
AD To detect signal and distortion
by level adjustment
94
Halt_sense
AD Not used
95
Rotary SKIP
AD TO detect rotary pulse for track
search
Pin
No
Pin Name
I/O
Fucntions
Summary of Contents for SA-AK980
Page 15: ...15 5 3 Disc Information ...
Page 27: ...27 6 6 2 Error Code Table For Power Supply ...
Page 28: ...28 7 Troubleshooting Guide 7 1 Jupiter USB ...
Page 29: ...29 7 2 Troubleshooting Guide ...
Page 30: ...30 ...
Page 32: ...32 7 3 2 Troubleshooting Guide ...
Page 38: ...38 ...
Page 39: ...39 9 1 Disassembly Flow Chart ...