VOLTAGE
Model : DY-3A66U-AL
1. -COM
IC801 PCB-MAIN
Pin
Pin
No.
AM
FM
CD
No.
AM
FM
CD
1 DISP-SO
Serial data output to DSP
O
L
0
0
0
51 N.C.
Not used
O
L
-
-
-
2 DSP-CLK
Serial clock output to DSP
O
L
0
0
0
52 N.C.
Not used
O
L
-
-
-
3 M-DATA-IN
M-BUS serial data input
I
L
5
5
5
53 N.C.
Not used
O
L
-
-
-
4 M-DATA-OUT
M-BUS serial data output
O
L
5
5
5
54 N.C.
Not used
O
L
-
-
-
5 M-CLK
M-BUS clock output
I/O
L
5
5
5
55 BVdd
VDD 5V
-
-
5
5
5
6 Evdd
VDD5V
-
-
5
5
5
56 BVss
GND
-
-
0
0
0
7 Evss
GND
-
-
0
0
0
57 P-MUTE
Power IC mute control output
O
H
5
5
5
8 OFFSET
Offset detection mode change output
O
H
0
0
0
58 CAR-TYPE1
Switching car type check terminal
I
L
0
0
0
9 CD-ACC ON
CDX2 ACCON output
O
H
0
0
0
59 CAR-TYPE2
Switching car type check terminal
I
L
0
0
0
10 CD-MTS
communication request output to CDX2
O
L
5
5
5
60 CAR-TYPE3
Switching car type check terminal
I
L
0
0
0
11 CD-STM
communication request input from CDX2
I
L
5
5
5
61 CAR-TYPE4
Switching car type check terminal
I
L
0
0
0
12 CD-DSTM
Serial data input from CDX2
I
L
5
5
5
62 N.C.
Not used
O
L
-
-
-
13 CD-DMTS
Serial data output to CDX2
O
L
0
0
0
63 DSP-REQ
Communication request output to DSP
O
H
5
5
5
14 CD-CLK
Serial clock input from CDX2
I
L
5
5
5
64 DSP-RDY
Communication possibility input from DSP
I
H
0
0
0
15 N.C.
Not used
O
L
-
-
-
65 DSP-DRDY
Communication possibility input from DSP
I
H
5
5
5
16 AM-ON
AM power supply output
O
H
5
0
0
66 N.C.
Not used
O
L
-
-
-
17 FM-ON
FM power supply output
O
H
0
5
0
67 DSPO-SRESET
DSPO system reset output
O
L
5
5
5
18 IC/VPP
GND
-
-
0
0
0
68 DSP-IRESET
DSPO, DSPI initial reset output
O
L
5
5
5
19 ACC-5V ON
ACC 5V output
O
H
5
5
5
69 N.C.
Not used
O
L
-
-
-
20 ANT-ON
ANT +B output
O
H
5
5
5
70 DSP-ON
DSP-IC power control output
O
H
5
5
5
21 ST
Stereo input
I
L
5
5
5
71 Avdd
A/D converter analog power supply
-
-
5
5
5
22 SD
Stop level input
I
L
5
5
5
72 Avss
A/D converter ground power supply
-
-
0
0
0
23 IF-REQ
IF output request
O
H
5
5
5
73 AVREF
VDD 5V
-
-
5
5
5
24 POWER-ON1
Power ON
O
H
5
5
5
74 A/D KEY1
A/D key1 input
I
-
5
5
5
25 POWER-ON2
Power ON
O
H
5
5
5
75 A/D KEY2
A/D key2 input
I
-
5
5
5
26 N.C.
Not used
O
L
-
-
-
76 REMO(D/C)
Remote controller code input
I
-
5
5
5
27 N.C.
Not used
O
L
-
-
-
77 S-METER
Electric field level input
I
-
3.6
4.3
0
28 N.C.
Not used
I
L
0
0
0
78 CAR-SENCE
Car type change input
I
-
2.5
2.5
2.5
*3
29 N.C.
Not used
O
L
-
-
-
79 INIT1
Initialization change input
I
-
5
5
5
30 N.C.
Not used
O
L
-
-
-
80 HSD
Offset detection input
I
L
0
0
0
31 RESET
System reset input
-
-
5
5
5
81 RTS
PC communication request input
I
L
0
0
0
32 XT1
Sub clock (Not used)
-
-
0
0
0
82 CD-MUTEIN
CDX2 mute input
I
L
0
0
0
33 XT2
Sub clock (Not used)
-
-
-
-
-
83 TEL-MUTE
Telephone mute input
I
H
5
5
5
34 REGC
Regulator output smoothly capacitor
-
-
3
3
3
84 N.C.
Not used
O
L
-
-
-
35 X2
Main clock - 12MHz
-
-
-
-
-
*1
85 N.C.
Not used
O
L
-
-
-
36 X1
Main clock - 12MHz
-
-
-
-
-
*1
86 ACC-IN
ACC detection input
I
H
5
5
5
37 Vss
GND
-
-
0
0
0
87 BATT-IN
BATT detection input
I
L
0
0
0
38 Vdd
VDD 5V
-
-
5
5
5
88 EJECT-KEY
Eject key input
I
L
5
5
5
39 CLOCKOUT
Clock output (Not used)
O
-
-
-
-
89 DSP RDY CHECK DSP rdy terminal check input
I
L
5
5
5
40 POWER-KEY
Power-KEY input
I
L
5
5
5
90 M-BUSY
M-BUS busy output
I/O
L
5
5
5
41 AUDIO-KEY
Audio-KEY input
I
L
5
5
5
91 N.C.
Not used
O
L
-
-
-
42 SW1
Encoder KEY2 input
I
-
5/0
5/0
5/0
*2
92 N.C.
Not used
O
L
-
-
-
43 SW2
Encoder KEY1 input
I
-
5/0
5/0
5/0
*2
93 ALL-MUTE
All mute output
O
L
5
5
5
44 VOL1
VOL pulse signal1 input
I
-
5/0
5/0
5/0
*2
94 IIC-DATA
IIC-data output (TUNER, EEPROM)
O
L
5
5
5
45 VOL2
VOL pulse signal2 input
I
-
5/0
5/0
5/0
*2
95 CTS
PC communication request output
O
L
0
0
0
46 LED-LATCH
LED driver-IC communication latch output
O
H
0
0
0
96 IIC-CLK
IIC clock output (TUNER, EEPROM)
O
L
5
5
5
47 LED-DATA-IN
LED driver-IC communication serial data output
O
L
0
0
0
97 PC-MAIN
PC communication serial data input
I
L
0
0
0
48 LED VDD ON
Panel ON output
O
L
5
5
5
98 MAIN-PC
PC communication serial data output
O
L
0
0
0
49 LED-CLK
LED driver-IC communication serial clock output
O
L
0
0
0
99 N.C.
Not used
O
L
-
-
-
50 LED-ENABLE
LED driver-IC movement request output
O
L
0
0
0
100 DSP-SI
DSP serial data input
I
L
0
0
0
Note:
*1 : The port is oscillation port. Do not touch it.
*2 : The value is alternated by volume control knob.
*3 : Using PS24 panel
Remark
Remark
Pin Name
Function
I/O
Voltage [V]
Voltage [V]
Pin Name
Function
I/O ACT
ACT
22
Summary of Contents for DY-3A66U-AL
Page 14: ......
Page 15: ......
Page 16: ......
Page 18: ...18 SCHEMATIC DIAGRAM PCB MAIN SUB MODEL DY 3A66U AL Vol 1 ...
Page 19: ...19 SCHEMATIC DIAGRAM PCB MAIN SUB MODEL DY 3A66U AL Vol 2 ...
Page 20: ...20 Back side Back side Back side SCHEMATIC DIAGRAM PCB MAIN SUB MODEL DY 3A66U AL Vol 3 ...
Page 21: ...21 SCHEMATIC DIAGRAM PCB MAIN SUB MODEL DY 3A66U AL Vol 4 ...
Page 38: ...PCB MAIN TO CDX3 PARTS LAYOUT ON PRINTED CIRCUIT BOARD MODEL DY 3A66U AL 2 T PARTS SIDE 14 ...
Page 39: ...PCB MAIN PARTS LAYOUT ON PRINTED CIRCUIT BOARD MODEL DY 3A66U AL 2 T PATTERN SIDE 15 ...
Page 40: ...16 Vol 1 Vol 2 Vol 3 Vol 4 PCB MAIN MODEL DY 3A66U AL 2 T SCHEMATIC DIAGRAM ...
Page 41: ...17 SCHEMATIC DIAGRAM PCB MAIN MODEL DY 3A66U AL 2 T Vol 1 ...
Page 42: ...18 SCHEMATIC DIAGRAM PCB MAIN MODEL DY 3A66U AL 2 T Vol 2 ...
Page 43: ...19 SCHEMATIC DIAGRAM PCB MAIN MODEL DY 3A66U AL 2 T Vol 3 ...
Page 44: ...20 SCHEMATIC DIAGRAM PCB MAIN MODEL DY 3A66U AL 2 T Vol 4 ...
