1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
E
E
D
D
C
C
B
B
A
A
Title
Number
Revision
Size
A2
Date:
28/10/2003
Sheet of
File:
D:\9390_5\9390_5\9390_5.Sch
Drawn By:
TFX2/3 PREAMP
9390
5
1
1
9390_5.Sch
Rich Thompson
BLT
Industries
Revision History
MJACK
SK1
10N 100V
C1
47
PSM
C27
10KSM
R2
1M
S
M
R4
G
G
G
TL072SM
U2B
TL072SM
U2A
4K7SM
R6
G
+15V
-15V
4N7 100V
C20
3K3SM
R45
220N 63V
C15
220N 63V
C17
22KB6S
VR11
100KA6S
VR9
2K2B6S
VR10
G
100KA6S
VR6
G
SST177
Q5
220KSM
R32
47PSM
C34
TL072SM
U5A
G
1MSM
R7
10KSM
R8
47KSM
R3
270PSM
C3
100KSM
R10
100N 63V
C4
47N 100V
C5
220KA6S
VR4
220KA6S
VR2
22KB6S
VR3
G
G
G
100N 50VSM
C28
100KA6S
VR1
G
+15V
-15V
BAS16
D3
BA
S1
6
D2
+15V
-15V
270PSM
C29
Input
Clean Channel
Treble
Mid
Bass
Treble
Bass
Mid
Drive 1 Volume
100N 50VSM
C25
100N 50VSM
C26
G
G
NOTE: All capacitors to be rated at 16V or higher
NOTE: All resistors to be 1/4W unless otherwise stated
TL072SM
U4A
10KSM
R28
15KSM
R26
15KSM
R30
2K2SM
R23
22N 100V
C11
4K7SM
R29
22N 100V
C13
G
G
39KSM
R25
Drive2 Scoop ON/OFF
TL072SM
U6B
TL072SM
U6A
6K8SM
R46
10KSM
R50
10KSM
R49
33KSM
R52
4K7SM
R47
1N 100V
C19
100PSM
C41
100N 63V
C42
330N 63V
C22
G
4N7 100V
C23
1N 100V
C21
10KSM
R48
10KSM
R51
G
330N 63V
C24
3K3SM
R53
G
2P2WPS
SW4A
VIBE ON/OFF
100KSM
R22
G
COA
4P2WPSPB
SW1A
470PSM
C31
470PSM
C30
BRIGHT ON/OFF
1
2
3
4
5
6
7
8
9
10
HD10W.5
HD4
G
2K2SM
R55
2U2 63V
C16
100KSM
R54
G
+15V
-15V
COA
4P2WPSPB
SW3A
TL072SM
U4B
G
1KSM
R27
12
1
HD2WLSJ
HD1
G
To Tube PCB
22N 100V
C8
100KA6S
VR5
100KB6S
VR7
TL072SM
U3B
SST177
Q2
SST177
Q1
G
LED3MMR
LED4
LED3MMR
LED6
LED5
LED3
1KSM
R16
470KSM
R14
270PSM
C7
DRIVE1
DRIVE2
12
1
HD2WLSJ
HD3
G
TL072SM
U3A
10KSM
R17
15KSM
R15
15KSM
R19
2K2SM
R12
22N 100V
C6
4K7SM
R18
22N 100V
C9
G
G
39KSM
R13
Drive1 Scoop ON/OFF
100KSM
R20
G
+15V
-15V
COA
4P2WPSPB
SW2A
G
100KA6S
VR8
G
Drive 2 Volume
100N 63V
C10
100N 63V
C14
47KSM
R33
47KSM
R37
SST177
Q3
SST177
Q7
CLEAN VOLUME
100KSM
R40
FXSEND
10KSM
R35
10KSM
R31
47PSM
C32
TL072SM
U5B
G
FXRETURN1
SST177
Q4
SST177
Q6
FXRETURN2
OUTPUT/FX/LOOP
4W LOOM TO
FX SEND/LINE OUT
FROM FX CONTROL PCB
FXSEND
FXRETURN1
FXRETURN2
G
+5V
CLEANFXFET
DRIVEFXFET
CLEANFXFET
DRIVEFXFET
CLEANFET
DRIVE1FET
DRIVE2FET
CO
C
4P2WPSPB
SW1C
CO
C
4P2WPSPB
SW2C
CO
C
4P2WPSPB
SW3C
G
G
G
LED3MMGHB
LED1
LED3MMRHB
LED2
LED3MMRHB
LED7
3K3SM
R9
3K3SM
R11
3K3SM
R21
CLEANFET
DRIVE1FET
DRIVE2FET
CLEAN CHANNEL
DRIVE 1 SW ITCH
DRIVE 2 SW ITCH
DRIVE1FET
DRIVE2FET
1KSM
R41
100N 63V
C36
GND
IN
OUT
LM7805
U1
+5V
100N 50VSM
C40
10U 50V
C18
+14V
G
150K SM
R44
100N 50VSM
C39
G
150K SM
R43
100N 50VSM
C38
G
150K SM
R42
100N 50VSM
C37
A5
A6
A7
100N 50VSM
C33
100N 50VSM
C35
100KSM
R36
100KSM
R38
G
G
12
3
45
67
8
9
10
1
HD10WLSJ
HD2
1KSM
R24
+15V
-15V
+15V
-15V
G
BR16BU
BRKT1
SST177
Q8
100KSM
R57
100N 50VSM
C43
G
G
100KSM
R56
+5V
MUTE
1
2
CD4069UBE
U7A
BC847B
TS2
22KSM
R69
10KSM
R73
G
+15V
+15V
G
10KSM
R60
Clean Active
13
12
CD4069UBE
U7F
G
3
4
CD4069UBE
U7B
BC847B
TS1
22KSM
R68
10KSM
R72
G
+15V
10KSM
R59
11
10
CD4069UBE
U7E
G
Drive 1 Active
5
6
CD4069UBE
U7C
BC847B
TS3
22KSM
R70
10KSM
R74
G
+15V
10KSM
R64
9
8
CD4069UBE
U7D
G
G
SW ITCH
10KSM
R61
10KSM
R63
+5V
+5V
+5V
+5V
+5V
µC LINES = ACTIVE LO
Drive 2 Active
22KSM
R66
2K2SM
R71
100N 63V
C12
22KSM
R5
0.47U 63V
C2
22KSM
R67
10KSM
R58
G
3R3 2W5
R1
10
U
50
V
C46
4K7SM
R65
G
G
G
100KSM
R75
G
10
0
N
5
0
V
S
M
C47
G
0R0
LN1
Note:
NOTE: TFX2 - FIT U1+R1. MISS OUT LN1+LN2
NOTE: TFX3 - FIT LN1+LN2, MISS OUT U1+R1
ITEMS WITHIN DASHED LINES
ARE ON PCB 9394
12
HD2WL
HD2
68K 0.5W
R21
ECC83
V1A
ECC83
V1B
1KH
VR10
POLYSW0.9
F2
G
SPADE4.8
SP3
SPADE4.8
SP4
22N 400V
C13
2K2SM
R17
820RSM
R26
470K
R24
470K
R25
100K 0.5W
R22
100K 0.5W
R23
G
G
G
G
G
33
0N
6
3V
C44
10U 400V
C21
33
0N
6
3V
C45
10U 400V
C22
G
10U 400V
C23
1K
R62
1N4007
D7
L
E
D
3
MMR
LE
D
5
HUM TRIM
12
HD2WL
HD3
G
TO PREAMP
To Transformer
10K 5W
R27
4x
10K 5W
R28
Caution High Voltage
G
SPADE4.8
SP2
G
SPADE4.8
SP1
G
Replace only with same type and rating
T100mA L
FUSEIN
F1
1N4007
D3
1N4007
D4
G
1N4007
D5
1N4007
D6
4N7 1000V
C2
4
4N7 1000V
C2
5
4N7 1000V
C2
7
4N7 1000V
C2
6
47
0
P
1K
V
C1
10
0N
5
0V
S
M
C44
G
1MSM
R34
100KSM
R39
100KSM
R62
G
G
100KSM
R76
G
R42,R43,R44 100K>330K
R31,R35 100K>10K
C45,C48,C49 100N>1uF
Switch noise
1U 10VSM
C45
1U 10VSM
C48
1U 10VSM
C49
Eliminate
Link out R1 on TFX3, see CN0323
0R0
LN2
Note:
R42,R43,R44 330K > 150K, See CN0325
