Laney TFX3 - Extension Loudspeaker; Bias Adj; Output;Fx;Loop; Mains Switch

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
Title
Number Revisio nSize
A3
Date: 15/0 9/2003 Sheet of
File: D:\9397 _4\9397_4. Sch Drawn By:
TFX3 OUTPUT
9397 4
119397_4.Sch
Rich Thompson
BLT
Industries
G
+45V
-45V
Extension Loudspeaker
FP
Flame proof resister
Must only be replaced with same type and rating
Indicates safety critical component
Must only be replaced with approved type
4700U 6 3V
C9
4700U 6 3V
C12
AC
AC
-V
+V
6A 200V
BR1
SPADE4.8
SP2
SPADE4.8
SP3
SPADE4.8
SP1
220N 25 0V
C15
G
Mains Switch
Mains In
Black(Brown)
Green/Yellow
White (Blue)
Chassis Transformer Primary
AC Line(Live)
AC Input (Neutral)
These items not on pcb
IEC Inlet
Fuse Integral to IEC
Fuse
MAINS FUSE 230V =T2A, 115V = T5A
MAINS TRANSFORMER
1K
R3
10K
R4
2U2 63V
C1
100U 25 V
C5
Gmu
2N38 19
Q1
Gmu
3V9 ZD0.5W
D2
3V9 ZD0.5W
D1
Gi
1N 100V
C2
Gi
Gi
MPSA92
TS1
MPSA92
TS3
MPSA92
TS2
MPSA92
TS4
MPSA42
TS5
MPSA92
TS10
220R
R7
100R
R9
1K
R8
150R
R6
47U 50V
C3
Gi
10K
R15
100P 100V
C4
100K
R5
1N41 48
D7
1N41 48
D3
2K2
R10
MPSA92
TS6
220R
R11
MPSA42
TS9
2U2 63V
C11
SAP16N
TS7
SAP16P
TS11
330R
R17
330RR20
6K8
R18
6K8R19
100N 63VC10
100N 63VC13
1N41 48D6
1N41 48D8
220R
R22
470RH
VR2
1N40 07
D9
1N40 07
D5
G
G
47N 100V
C16
10R 2W5
R23
10R 2W5
R24
COIL20T
L1
G
+45V
-45V
100N 63 V
C14
100N 63 V
C8
MPSA42
TS8
10K
R12
33K
R13
1U 63V
C6
Gmu
Gmu
1N41 48
D4
Gmu
1N40 07
D11
1N40 07
D10
65MMFINNEDH S
65MMFINNEDH S
MJACKSJ
SK4
0R0
LN3
0R0
LN6
TestPoi nt1
TestPoi nt2
Set VR2 to give 20mV across TP1 and TP2
NOTE:
Refer to service manual before adjusting bias preset
BIAS ADJ
0R0
LN7
Gmu
1KH
VR1
100R
R1
100R
R2
OFFSET ADJ
220R
R16
47P 50V
C7
0R0
LN5
Head Version Only!
TO PREAMP/FX/LOOP
-15V+15V
1 2
3 4
5 6
7 8
9
10
HD1
MJACKGSJ
SK2
FX RETURN
Gi
0R0
LN8
0R0
LN9
-45V2
-45V2
0R22 5W
R14
0R22 5W
R21
0R0
LN4
SPADE4.8
SP4
SPADE4.8
SP6
Internal Loudspeaker
~12V TO TUBE
~200V TO TUBE
PCB 9394 SP1/SP2
PCB 9394 SP3/SP4
0R22 5W
R29
G
220R
R28
680R 5W
R25
680R 5W
R26
15V ZD1. 3W
D13
15V ZD1. 3W
D12
470U 16 V
C17
470U 16 V
C18
+15V
-15V
G
G
G
Gi
0R0
LN10
TFXFS4 FOOTSWITCH WIRING
CLEAN DRIVE1 DRIVE2 FX
G
G
+5V
1
5
69
1K 1K 1K 1K
Items within dashed
Lines are on a seperate
Crack-off pcb
1 2
3 4
5 6
7 8
9
10
HD10W.5
HD2
Gc
TFX4 FOOTSWITCH
Gc
FX2
DRIVE1
DRIVE2
CLEAN
FX1
1
5
69
DB09M
SK6
MJACKSJ
SK3
FX SEND
Set VR1 to give 0mV across LS+, LS-
Gi
Gi
0R0
LN1
-45V2
100N 63 V
C19
+5V
SPADE4.8
SP5
SPADE4.8
SP7
AC
AC
-V
+V
1.5A 200V
BR2
470U 16 V
C21
GND
INOUT
7805
U1
10U 50V
C20
G
+5V
~8V TO 5VDC SUPPLY
PCB 9397 SP5/SP7
8V~
POLYSW0.9
F1