Tesoro BANDIDO2.pdf

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C:WINDOWS...BANDIDO2.CKT
Choppers
section
Low pass filters
section
Non ferrous
channels
D2
D1
Receive
C1 6 39pF
C29 10nF
C3 3 22nF
C39
4 .7uF
R46
5 .1k R 4 5 1 M
+5V
IC8B
F ~ 11,13 KHz
R29
1 00k
R 50 6 2 0k
R65
2.2k
5
6
R 55 4 .7k
Power supply
RX
6.2mH
R26
5 .1k
7
T3
2N3906
Sens.
C31
4 70nF
IC7B
C17
2 20n F
IC4A
IC9B
R48
4 7k
IC10B
+5V
R5
10k
R33
2 0k
R37
1 00k
+5V
LM393
- 5V Converter
6
C 15
33nF
4066
6
7
6
2
7
1
2
5
7
5
5
C4
1 00uF
T7
2N 390 6
MC33178
R57
1M
-5 V
R27
5 .1k
R30
1k
TLC2262
R52 15 0k
+
D6
1
3
SENS
10k 40%
MC33178
C21
100nF
C24
10nF
R6
10 k
+9V
+5V
C5
100uF
D4
R67
1k
2
IC2
D7
+5V
R53
1k
T4
2N3904
R28
100k
3 IN 1
OUT
D3
R66
200
C34
100nF
LM2931
C28 10nF
R7
2.2k
+
C3 2 22nF
BAT
9V
GND
C6
220uF
R1
1.2k
C38
4 .7uF
R44
5 .1k R 4 3 1 M
R68
10k
R2
12k
C42
100uF
Transmit
R 49 6 20k
+9V
IC8A
LM 393
T1
2N3906
IC9A
C30
4 70nF
R47
4 7k
2
R32
2 0k
IC4B
R36
1 00k
IC10A
R54
4 .7k
R14
20
2
2
4066
1
2
1
C36
1 00nF
Au dio Amp.
3
4
3
1
3
3
Threshold
D5
C2
47nF
R3
20k
MC33178
C20
100nF C23
10nF
TLC2262
C25
1 00nF
R56
1M
+5V
R59
2 00k
R61
1 00k
T6
2N3906
C8
220uF
R51 10 k
R15
5.1k
C1
470nF
TX
5.75mH
All
metal
channel
R42
1k
R41
4 70k
2
SW 1 & 2
- Disc.
- All Met.
- Retune
THRESH
T5
2N3904
R60
2 .2k
IC 3B
R62
2 0k
2 SW1
100k
6
IC6B
7
2
Fosc ~ 10,15 KHz
5
TLC2262
3
1
R16
1 50
R31
2 0k
IC4C
R35
1 00k
4
-5V
U 1
Jack
DISCRI
100k 4 0%
4066
6
7
TLC2262
2
3
8
9
5
C37
470nF
2 SW2
R39
2 00k
C19
1 00nF
C22
10nF
3
1
Battery Check
J 2
R17
100
IC6A
RED
GREEN
C10 22pF
4
R18
150
TLC2262
R40
2 .7M
R58
2 00k
R 19 8 2k
+5V
R38
2 .7M
S1
+9V
+5V
SPK1
8
2
R11
2 00k
-5V
IC5B
1
C9
100pF
3
J1
R25
20k
IC 7A
R23
10 0k
R69
2 7k
LM393
Auto
C35
10nF
-5V
2
1
6
R9
100k
3
7
5
R10
1 00k
IC4D
IC 3A
R13
1k
VOL
+5V
MC33178
R64
1 0k
4066
2
1
10
11
220 ~ 470
3
C12
180pF
R22
20k
C14
8.2pF
R7 0 10k
IC5A
R8
200k
TLC2262
Discrimination
LM393
C7
10uF
2
3
1
R24
68k
R34
47k
50K 3.5 Turns
R12
430k
GND
C18
22pF
+5V
+5V
optional
D11
C13
10pF
R21
10k
R4
47k
IC1
-5V
R20
1k
VDD
Ground Balance
Q1
R63
10 0k
CLK
Q Q2
D10
D 9
D 8
4024
Q4
Q5
Q6
Q7
for Fosc = 10,15 KHz
Q1 = 5 KHz
Q2 = 2,5 KHz
Q3 = 1,25 KHz
Q4 = 625 Hz
RESET
T2
2N3904
Note:
- All IC's except IC1 use + / - supply rails
- C39 C38 can be electrolytics
- RX Fosc ~ 11,13 KHz
- TX Colpitts Fosc ~ 10,15 KHz
VSS
Battery check modification (by Carl)
add R24 68k
change R11 200k => 2M
swap R8 - R9
Put a jumper properly on J1
Put a bicolor LED on J2
Tesoro Bandido II traced by Driscoll
You can add or not the pot in audio stage (220 ~ 470ohm)
to control the header volume (very useful for me).
Rev ID
1
Complete schematic
Date: 27 SEPTEMBER 2004 Page: 1 of 1
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