Roadstar TRA-2350 - Main Circuit Schematic; Central Control and Display Interface; Input Controls and Power Circuitry

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A B C D
4
321
D
C B A
Title
Number RevisionSize
A4
Date: 13-Jul-2006 Sheet of
COM0
1
COM1
2
COM2
3
COM3
4
SD
5
SC
6
CST
7
LIGHT
8
VDD
9
VSS
10
XOUT
11
XIN
12
TEST
13
XTIN
14
XTOUT
15
RST
16
BAND0
17
GND
18
BAND1
19
VREF
20
GND
21
BAND2
22
FFW
23
FFD
24
MUTE
25
POWER
26
DO
27
CLK
28
DI
29
CE
30
VDD
31
GND
32
ST
33
TUNE
34
BATT
35
ADKEY0
36
ADKEY1
37
ADKEY2
38
SEG25
39
SEG24
40
SEG23
41
SEG22
42
SEG21
43
SEG20
44
SEG19
45
SEG18
46
SEG17
47
SEG16
48
SEG15
49
SEG14
50
SEG13
51
SEG12
52
SEG11
53
SEG10
54
SEG9
55
SEG8
56
SEG7
57
SEG6
58
SEG5
59
SEG4
60
SEG3
61
SEG2
62
SEG1
63
SEG0
64
U1
SW10 HOLD
RST
C1
22P
C2 22P
R2 22K
R3 100K
R4 100K
C3 104
X1
32.768K
C6
4.7uF
R30
3.3K
VDD
C4
104
R50
R60
R70
R80
R9100K
R10100K
R11100K
R12100K
R13100K
R14100K
R15100K
R16100K
R17100K
R18100K
R19100K
R20100K
R21100K
R22100K
R23100K
R24100K
R25100K
R26100K
VDD
R31 10K
R32 10K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
LCD 26PIN
LT
RST
CHARGE
R35 820K
BUZZ
VDD
C5
104
STEREO
INBAND0 EXTIN BATT
SEGA
SEGA KIN0 KIN1 KIN2 KIN3
C12 471
C13 471
T1 9014
R37 560K
R36 680K
R38 560K
GND
R27100K
R28100K
R29100K
SCAN0
SCAN1
SEG16 SEG17 SEG18 SEG19
SEG16
SEG17
SEG18
SEG19
SCAN0
SCAN1
AGC
SW12 LIGHT
R40 1K
C8 102
LIGHT HOLD
R1 1K
C9 103
R44 1K
R45 1K
R46 75
R47 10
T3 9014
T4 S8550
LED2 LED
B1 BUZZER
VDD1
LT
BUZZ
POWER
AGC INBAND0
CHARGE
IBATT VIN
VDD
STEREO
C16 102
C18 102
D2 IN60
C14
0.47F
L1
1.8uh
POWER
SW13 BEEP
SW14 STOP
FFW FFD
CE DI CLK DO
SW15 FAST
SW16 SLOW
SW1
HOURE
SW2 SNOOZE
SW3 MODE
SW4 CHARGE
SW5 TIMERB
SW6 TIMERA
SW7 WORLD
SW8 MINUTE
SW9
TSET
SW11
POWER
D1
4148
D3
4148
D4
4148
D5
4148
TUNESW
R33 680K
R34 680K
VDD
C7 202
C10 202
R41 3K
R42 3K
R43 3K
R49 1K
CE DI CLK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J2 CON14
V_TUNE
V_TUNE
C19 101
R39 820K
R52 820K
OPTION
R53 1K
R54 1K
SW17 SNOOZE
SW18 LIGHT
LED1 LED
LLIGHT
R51 470K
R55 470K
S1 9K/10K
R39=BLANK S1=OPEN :SELECT 1206--12HOURE 9K
:SELECT 1206--12 HOURE 10K :SELECT 1206--24HOURE 9K :SELECT 1206--24HOURE 10K
R39=BLANK S1=CLOSE R55=BLANK S1=OPEN R55=BLANK S1=CLOSE
R50 75
Q1 8050
R48 1K
LLIGHT
VDD1
R56 75
R57 75
R58 75
LED3
LED5
LED6
LED4
L1 L2 L2L1
SW20 RST
VIN IBATT INBAND0 AGC
VDD1
1
2
3
J1
CON3
1
2
3
J3 CON3
1
2
3
4
J4 CON4
R59 22K
L2 10uH
R60
4.7K
LED7
LED8
R61 3K
R62 680K
R63 680K
VDD
R64 75
R65 75
R66 75