Vitek TA-739B Schematic
00
REV:
8 OHM/2W
AC4
+
-
SP2
BIT_OUT
VCC
16
OUT1
15
34
+ _
14B.S.1
100U
C33
100U
SW3
+ _
AM/FM
GND
13
12GND
11IN1-
10IN1+
9PRE_GND
FM/OFF
AM_IF
TO_LCD_AL
CD2025
U300
B.S.2
GND
GND
IN2-
IN2+
FIL
1
2 OUT2
3
4
5
6
7
8
+_
+_
+_
4U7
C19
0.22U
0.22U
470U
C7
100U
C16
100U
C14
203P
3K3
+_
100U
C15
C266
C26
R703
150R
D6
IN4001
C121
223P
223P
C201
D4
IN4001
C6
223P
D3
IN4001
C13W
R6
0R
R3E
50KB
104P
C25L
0R
R3E1
0R
R3E2
D8
C161
223P
D5
IN4001
2200/25V
C25
Q2
B772
C1
104P
R10
220R
SW1
OFF/ON
4V3
+_
220U
R29
D702
220R
104P
D11
C36
LED
C35
核准:
DATE:
DATE:
审核:
RADIO:SA2003+CD2025
TAB-739B
2007-09-10
贺发坤
SCHEMATIC DIAGRAM
TITLE:
DATE:
制作:
OFF/ON
C205PC21
T1
AM_OSC
22P
2.5Tx3.5MM
25P
5P
PVC-C
C8
150P
PVC-B
C13
L2
L3
3.5Tx3.5MM
C4
PVC-A
CD2003
IC2
8 9
PVC1-A
FM/IF_IN
7
AM/IF_IN
6
VCC
5
AGC
4
AM/MIX_OUT
3
FM/MIX_OUT
2
GND FM/RF_OUT
1
FM/RF_IN
104P
C33EW
FM/ANT
GND
10
QUAD
223P
C17EW
11
DET_OUT
12
AM_OSC
101P
13
C11
1
2
FM_OSC
14
15
16
AM/FM_SW
AM/RF_IN
3
4
AM/ANT
10.7M
CF3
455B
CF1
R5
3K3
R4
30P
Q1
R1
100k
30P
CF2
10.7M
220R
C10
30P
C9
1k5
R2
9018
C1
3k3
47U
SW2
202P
3V3
30P
D7
C12
R3
104P
100u
L1
4.5Tx3.5MM
C5
D2
D1
AM/FM
C191
C29
C27
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403P
C108
DATE:
D
C
B
A
22
BUZZ
8050
Q17
8 ohm
REVISION RECORD
ECO NO: APPROVED:
LTR
9
8
7
LCD
6
5
4
3
LCD1
2
LCD16P
1
DRAWING NO:
R67
1K
CODE: SIZE: REV:
CHECKED: DATED:
C
SCALE: SHEET: OF
DATED:QUALITY CONTROL:
RELEASED: DATED:
C2
X1
16
15
14
13
12
11
10
22P
32.768KHz
C111
22P
IC1
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SGG1
SEG0
COM3
COM2
COM1
CSCIN
SEG12
SEG11
SEG10
SC3610
1819
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
VLCD CSCOU
20
RST
21
AL ON/OFF
22
AL DISP
23
MIN SET
24
HOUR SET
25
NC
26
CLKFREQ SET
27
AL SIG
28
AL OUT
29
IF 70K
30
NC
31
RANGE
32
AM/FM SET
33
AMIN
34
VSS
35
FMIN
36
VDD
R8
5K6
103P
C18
20P
AL/OFF
C17 104P
MIN
HR
ALA
TITLE:
COMPANY:
DATED:DRAWN:
C24
R9
1M
C23
104P
SNOOZE
R66
R19
150R
VCC2
100K
+
C3
220R
R21
VCC
R20
ZD2
47U/10
3.3V
22R
FMOSC
10K
R7
RADIO-VCC
R28
1M
1M
R31
R32
Q15
8550
6 5 4 3 2 1
R65
4K7
1M
8550
Q14
9014
Q16
1M
R48
+
C34
22U
D
C
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B
A
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