Tc-700P Vhf Schematic Diagram - HYT TC-700P Service Manual

5
D
B+
R666 R666
470k 470k
C668 C668 R668 R668
0.1u 0.1u 30k 30k
AUDIO_AMP
C669 C669 R669 R669
0.1u 0.1u 30k 30k
C
Q615 Q615
PA_MUTE
DTC114YE DTC114YE
R672 R672
22k 22k
B+
MIC
B
OPT_SEL
A
5
4
TC-700P VHF Schematic Diagram (AF AMP&EXT Interface Circuit)
+ + C685 C685
47u/16V 47u/16V
U609 U609
R667 R667 TDA8547TS TDA8547TS
470k 470k
17
IN1-
18
OUT1-
R670 R670
16
IN1+
10k 10k
3
OUT1+
14
IN2-
R671 R671
13
OUT2-
10k 10k
15
IN2+
5 8
SVRR OUT2+
4
MODE
6
SELECT
C670 C670
1000p 1000p
C666 C666
+ +
10u/10V 10u/10V
R673 R673 R674 R674
2.2k 2.2k 470 470
+ +
C671 C671
10u/6.3V 10u/6.3V
R675 R675 R676 R676
100k 100k
100k 100k
Q618 Q618
UPA672T UPA672T
Q616 Q616
2SJ243 2SJ243
1 6
2 5
3 4
C672 C672
470p 470p
4
3
AFAMP&EXT Interface Circuit
EXT_SP-
EXT_SP+
EXT_SP-
SWB+
PTT_EXT
TXD1
R665 R665
FLAT_OUT
10 10
FLAT_IN
SP-
EXT_SP+
SP+
EXT-MIC
C667 C667
OPT_SEL
0.01u 0.01u
RXD1
SQL
GPS_IN
TP625 TP625
GPS_IN GPS_IN
5CNS
EXT-MIC
MIC+
87
3
2
C680 C680 C679 C679 C678 C678 C677 C677 C676 C676 C675 C675
100p 100p 100p 100p 100p 100p 100p 100p 100p 100p 100p 100p
R680 3.9 R680 3.9
C684 C684
D608 D608 D607 D607 D606 D606 100p 100p
D611 D611 D610 D610
EDZ6.8B EDZ6.8B
EDZ6.8B EDZ6.8B EDZ6.8B EDZ6.8B EDZ6.8B EDZ6.8B EDZ6.8B EDZ6.8B
D609 D609
RSA6.1EN RSA6.1EN
SP-
SP+
MIC-
MIC+
Model Name: Model Name: Model Name:
Part Name: Part Name: Part Name:
File No.: File No.: File No.:
Prepare: Prepare: Prepare:
2
1
C674 C674 C673 C673
100p 100p 100p 100p
J602 J602
1
2
3
4
R679 R679 1k 1k
5
6
7
8
9
10
R677 R677 1k 1k
11
R692 R692 1k 1k
12
13
14
15
16
17
18
C683 C683 C682 C682 C681 C681
19
100p 100p 100p 100p 100p 100p
20
CON20 CON20
HYT Science&technology Co.Ltd. HYT Science&technology Co.Ltd. HYT Science&technology Co.Ltd.
TC-700P VHF MainBoard TC-700P VHF MainBoard TC-700P VHF MainBoard
Page: Page: Page:
1 1 1 of of of 6 6 6
AFAMP&EXT Interface AFAMP&EXT Interface AFAMP&EXT Interface Date: Date: Date:
Tuesday, February 23, 2010 Tuesday, February 23, 2010 Tuesday, February 23, 2010
Rev: Rev: Rev: 1.0 1.0 1.0
Check: Check: Check: Approve: Approve: Approve:
1
D
C
B
A