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SCHEMATIC DIAGRAM (AMPLIFIER)
CN401
MIC 1
(L-CH)
R4730
1
1K
2
6
3
4
5
GND
3
CN402
4
CE
MIC 2
OUT
2
(R-CH)
5
VDD
1
IN
1
2
6
3
4
5
R-CH
L-CH
C4703
0.015
R4704
56
C4750
0.01
R4707
VR401
-1
R4753
5.6K
10K
0
C4708
R4712
1M
C4710
0.47
R4715
1
R4716
1
CN403
REMOTE
This is a basic schematic diagram.
2
3
1
R4203
6
C4200
4
5
C4201
IC420
TC7WB66FK
8
7
1
2
R4720
6.8K
1
2
3
(L-CH)
IC401
5
4
LA4167M
C4704
4.7
1.6
EQ
0
PRE-NF
51.5dB
PRE-GND
C4720
3900P
C4706
1.5
1.6
0.047;B
PRE-OUT
EQ-IN
C4722
C4721
4700P
1.6
MIC
RX
1.6
0.1
REC-IN
R4706
MIC-IN
18K
REC
C4723
47;6.3-T
1.6
1.6
(B2)
R4711
REC-OUT
VREF-OUT
20K
2K
470K
C4724
220;4
0
RX
RX
2.7
47;6.3-T
(B2)
ALC-CONT
MIC-VCC
C4725
220;4
0
VAS
1.6
ALC
VOX-CONT
AF-OUT
C4709
1.0
C4726
22/6.3
1.4
0
VOX
0.2
LED-DRIVE
VOX
VOX-DELAY
1.6
0
2.7
CUE TONE ON/OFF
R/P-SW
OFF
MIC
CUE TONE OSC
VCC
1.6
0.7
R4752
PAUSE
1K
R4723
1.6
1.2
R/P-MUTE
R4012
CUE TONE OUT
1.6
3.3K
0.2
POWER-IN
GVN-CONT
4.8
R4013
C4713
1K
1.2
1
1.3
GVN-VREF
0.1
POWER-OUT1
R4727
560
0
2.4
2.8
R.F
R/P
POWER GND
VS
C4714
0.1
1.2
R4728
470
2
0
GVN-GND
POWER-OUT2
GVN
3.0
VCC
GVN-OUT
1.7
- 6 -
R4202
100K
100K
0.1
R4201
0.1
180
6
5
3
4
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
R4818
2.2K
D4701
UDZS10B
C4730
D4001
DAN202K
0.022
C4851
0.01
C4803
SLOW
R4804
C4804
56
4.7/25
0.015
NOR
C4850
0.01
FAST
R4022
VR401-2
C4806
2.2K
0.047
10K
R4023
R4807
C4727
2.2K
5.6K
0.1
R4806
18K
R4024
R4025
10K
R4811
470K
10K
C4808
47/4
R4026
C4809
1.0
8.2K
R4027
R4029
680
R4028
10K
10K
S4004
R4841
ON
470K
R4812
1M
R4031
120K
R4030
5.6K
130
C4810
0.47
R4032
10K
VR471
1K
R4033
R4815
C4813
910
1
0.1
R4816
C4814
1
0.1
1
2
3
5
4
R4015
4.7K
S4001:RECORD/PLAY SW
S4002:TAPE SPEED SW
S4003:PLAY SPEED SW
S4004:PAUSE SW
S4005:VAS SW
S4200:REC MODE SW
S4201:CUE-INDEX SW
R4045
100K
8
7
6
5
Q4903
IC409
R4908
KRC103S
TC7WB66FK
47K
Q4902
1
2
3
4
2SB1295
R4901
1.5K
1
2
3
5
4
R4035
(R-CH)
120K
IC402
LA4167M
R4820
6.8K
1.6
EQ
0
PRE-NF
51.5dB
PRE-GND
C4820
C4828
3900P
0.1
1.5
1.6
PRE-OUT
EQ-IN
C4822
C4821
4700P
1.6
MIC
RX
1.6
0.1
REC-IN
MIC-IN
REC
1.6
C4823
47/4
1.6
REC-OUT
VREF-OUT
20K
2K
C4824
220;4
0
RX
RX
2.7
ALC-CONT
MIC-VCC
0
VAS
C4825
220;4
1.6
VOX-CONT
ALC
AF-OUT
C4826
22/6.3
1.4
0
VOX
0.2
LED-DRIVE
VOX
VOX-DELAY
1.6
0
2.7
CUE TONE ON/OFF
R/P-SW
MIC
CUE TONE OSC
VCC
1.6
0.7
PAUSE
R4823
120K
1.6
1.2
R/P-MUTE
CUE TONE OUT
1.6
0.2
POWER-IN
GVN-CONT
1.2
1
1.3
GVN-VREF
POWER-OUT1
0
2.8
R.F
R/P
POWER GND
VS
1.2
2
0
GVN-GND
POWER-OUT2
GVN
3.0
VCC
GVN-OUT
1.7
R4701
39
R4801
39
R4002
Q4009
Q4011
Q4010
47K
KTA1504
KRC103S
KRC103S
- 7 -
CN491
CN405
HEAD PHONE
1
2
6
3
4
5
C4030
220/4
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