Laney TFX3 H TWIN Schematic

TFX3/H/Twin

Service InformationService Information

Laney

Classic British Amplification

Newlyn Road, Cradley Heath, West Midlands. B64 6B£

www.laney.co.uk

1

C1
10N 1 00V
R2
10KSM

R4

G G

+15V

U2B

R5
22KSM

R66
22KSM

R71
2K2SM

Clean Channel

C3

270PSM

R10
100K SM

C4

100N 63V

47N 100V

C5

D3
BAS16

TL07 2SM

D2

C27

BAS16

1MSM

-15V

47PSM

C29

270PSM

C2

0.47 U 63V

R6
4K7SM

G

MJACK

G

SK1

G

A A

Input

B B

C8

22N 100V

C12

100N 63V

G

DRIVE1

VR5
100K A6S

Treble

VR4

220K A6S

Bass

VR2

220K A6S

Mid

VR3

22KB6 S

2

DRIVE2

VR7
100K B6S

DRIVE 2FET

DRIVE 1FET

G

Q2
SST177

Q1
SST177

R7
1MSM

1KSM

D1
BAS16

G

R16

D4
BAS16

R8
10KSM

G

TL07 2SM

LED3M MR

LED6

LED4

LED3MMR

LED5 LED3

C7

270PSM

470KSMR14

U3B

TL07 2SM

To Tube PCB

BRIG H T O N/O F F

+15V

U2A

100N 50VSM

-15V

R3
47KSM

G

C28

3

ITEMS W ITHIN DA SHED L INES
AR E ON PCB 93 94

HD1

121

HD2WL SJ

SW1A
4P2WPSPB

COA

VR1
100K A6S

CLEAN VOLUME

G

HD2WL
HD2

12

C31

G

C44

G

Caution High Voltage

C21
10U 400V

G

R21
68K 0.5W

C45

R17
2K2SM

G

G

330N 63V

330N 63V

C30
470PSM
470PSM

R22
100K 0. 5W

V1A
ECC83

LED3MMR

R40
100K SM

22N 4 00V

C13

R24
470K

LED 5

R62
1K

G

R25
470K

D7
1N40 07

R23
100K 0. 5W

470P 1K V

C1

R26
820RSM

G

G

HUM TRIM

4

R27
10K 5 W

V1B
ECC83

VR10
1KH

R28

10K 5 W
C22
10U 400V

G

TO PREAMP

HD3

12

HD2WL

G

SPADE 4.8

F2
POLYSW0.9

SPADE 4.8

5

Replace only with same type and rating

4N7 1 000V

4N7 1 000V

4N7 1 000V

4N7 1 000V

4x

1N4007D31N4007

1N4007D51N4007

C24

C26

D6

C25

C27

D4

G

C20

G

R45
3K3SM

4N7 1 00V

C15

220N 63V

220N 63V

C17

Bass

VR9
100K A6S

VR10

Mid

G

22KB6S

2K2B6S

Treble

VR11

G

SP3

SP4

C23

10U 4 00V

HD3

121

HD2WLSJ

T100mA L

SPADE4.8

SP1

F1
FUSEIN

To Tran sform e r

SP2

SPADE4.8

R75

TL07 2SM

100K SM

G

R58
10KSM

G

R67
22KSM

U4B

R24
1KSM

100K SM

R27
1KSM

100K SM

6

SW2A
4P2WPSPB

COA

Drive1 Scoop ON/OFF

G

R12

R13

2K2SM

R20

G

SW3A
4P2WPSPB

COA

G

R23
2K2SM

R22

G

G

39KSM

C6

22N 1 00V

R19

15KSM

R18
4K7SM

R17
10KSM

G

22N 1 00V

C9

U3A

TL07 2SM

R15
15KSM

+15V

-15V

Drive2 Scoop ON/OFF

R25

G

39KSM

C11

22N 1 00V

R30

15KSM

R29
4K7SM

R28
10KSM

G

22N 1 00V

C13

U4A

TL07 2SM

R26
15KSM

+15V

-15V

C10

100N 63V

100K A6S

VR6

C14

100N 63V

100K A6S

VR8

7

Drive 1 Volume

R33
47KSM

G

DRIVE 1FET

Drive 2 Volume

R37
47KSM

G

DRIVE 2FET

Q3
SST177

Q5
SST177

Q7
SST177

G

R34
1MSM

FXSEND

C44

8

C36

R41
1KSM

100N 63V

C34

47PSM
R32

220K SM

100N 50VSM

-15V

U5A

TL07 2SM

+15V

G

C45

R76

100K SM

R35
10KSM

G

CLEANFET

Q4
SST177

G

Q6
SST177

G

C48

R39
100K SM

G

R36

100K SM
C33
100N 50VSM

C49

R62
100K SM

G

R38

100K SM
C35

100N 50VSM

119390_6.sch

1U 10 VSM

+5V

R61
10KSM

CLEANFXFET

1U 10 VSM

+5V

R63
10KSM

8

FXRETURN1

FXRETURN2

DRIVE FXFET

Rich Thompson

BRKT1

C C

BR16BU

VIBE ON /OFF

G

Clean Active

LED1

CLEANFET

Drive 1 Active

R11
3K3SM

Drive 2 Active

R21
3K3SM

DRIVE 2FET

R55
2K2SM

Q8
SST177

MUTE

LED3M MGH B

G

LED3M MRHB

LED2

LED3M MRHB

LED7

G

2P2WPS
SW4A

G

Revi si on His tory

R4 2,R43,R44 100K>330K
R3 1,R35 100K>10K
C4 5,C48,C49 100N>1uF

Link out R1 on TFX3, s ee CN0323
R4 2,R43,R44 330K > 150K, See CN0325

FX SEND/LINE OUT

4W LOOM TO

OUTPUT/FX/LOOP

D D

CLEANFXFET

DRIVE FXFET

FXRETURN2

FXRETURN1

FXSEND

E E

FROM FX CONTROL PCB

A5

A6

A7

HD2

G

+5V

HD10 WLSJ

HD4

9

10

7

8

5

6

3

4

1

2

HD10 W.5

+15V -15V

C26
100N 50VSM

µC LINES = ACTIVE LO

123456789101

+14V

G

CLEAN CHANNEL

DRIVE 1 SWITCH

DRIVE 2 SW IT CH

1

2

C25
100N 50VSM

GG

SWITCH

Note:

LN2
0R0

R1
3R3 2W 5

G

G

G

COC

SW1C
4P2WPSPB

COC

SW2C
4P2WPSPB

COC

SW3C
4P2WPSPB

C47

G

LN1
0R0

U1

LM7805

IN OUT

GND

C46

Note:

10U 50V

100N 50VSM

+5V

+5V

R59
10KSM

+5V

R60
10KSM

R72
10KSM

R64
10KSM

R73
10KSM

R74
10KSM

3

+15V

+15V

R68
22KSM

TS1
BC84 7B

G

+15V

G

R70
22KSM

TS3
BC84 7B

G

G

R69
22KSM

TS2
BC847B

3 4

C18
10U 5 0V

+15V

1 2

G

CD4069UBE
U7B

CD4069UBE
U7C

5 6

+5V

CD4069UBE
U7A

C40
100N 50VSM

GGG

+5V

13 12

R44
150K SM

11 10

R43
150K SM

9 8

R42
150K SM

R56
100K SM

U7F

CD4069UBE

G

U7E

CD4069UBE

C38
100N 50VSM

G

U7D

CD4069UBE

G

R57
100K SM

C43
100N 50VSM

G

R9
3K3SM

C39
100N 50VSM

DRIVE 1FET

C37
100N 50VSM

4

G

5

R65
4K7SM

R53
3K3SM

R54
100K SM

G

C24

330N 63V

-15V

U6A

TL07 2SM

+15V

Eliminate
Switch noise

4N7 1 00V

C23

R48

R51

10KSM

10KSM

C21
1N 10 0V

G

D1, D 4 ad ded. See CN0331

R49
10KSM

C41

100PSM

TL072SM

U6B

6

33KSM

330N 63V

C22

R47
4K7SM

R52

C42

100N 63V

R50
10KSM

R46

C19

6K8SM

1N 10 0V

G

BLT

Indus tri es

C16

2U2 6 3V

C32

47PS M

R31
10KSM

U5B

TL07 2SM

G

1U 10 VSM

NOTE: TFX2 - FIT U 1+R1. MISS OUT LN1+LN2
NOTE: TFX3 - FIT LN 1+LN 2 , MI SS O UT U 1+R1

NOTE: All resistors to be 1/4W unless otherwise stated
NOTE: All capacitors to be rated at 16V or higher

Titl e

TFX2 /3 PREAMP

Numbe r RevisionSize

A2

Da te : 11/12/2003 Sh e et of
File: C:\Documents and Setti ngs \..\9390 _6.sch Draw n By:

9390 6

7

1

2

3

4

5

6

7

8

TFX4 FO OTS W ITCH

SK6

Gc

+5V

A A

HD2

1

2

3

4

5

6

7

8

Gc

10

9

HD10 W.5

B B

TO PREAMP/FX/LOOP

C C

DB09M

5

FX2
DRIVE 2
CLEAN
FX1
DRIVE 1

Items within dashed
Lines are on a seperate
Crack-off pcb

LN1
0R0

HD1

9

10

7

8

G

5

6

3

4

1

2

-15V+15V

BLT005103

R5
100K

TS5
MPSA42

LN3
0R0

R10
2K2

R16
220R

MFR- 09 0

F1
POLYSW0.9

R15
10K

C7

47P 50V

LN4
0R0

-45V2

LN8
0R0

SP5

SPADE 4.8

SP7

SPADE 4.8

R11
220R

TS6
MPSA92

D3
1N41 48

TS10

MPSA92
D7
1N41 48

8V~

TS9

MPSA42

C11

2U2 6 3V

R18

R17
330R

6K8

100N 63 VC10

TestPoint1

1N41 48D6

G

BIAS ADJ

6K8R19
330RR20

100N 63 VC13

G

1N41 48D8

TestPoint2

LN9
0R0

1

SK3
MJACKSJ

FX SEND

SK2
MJACKGSJ

FX RETURN

R3
1K

Q1
2N38 19

Gmu

C5
100U 25V

Gmu

+5V

Gmu

Gi

D4
1N41 48

TS8

MPSA42

C1

D2
3V9 Z D0. 5W

D1
3V9 Z D0. 5W

Gmu

C19
100N 63V

G

2U2 6 3V

C2

Gi

R13

33K
R12
10K

Gmu

~8V TO 5VDC SUPPLY
PCB 9397 SP5/SP7

U1

INOU T

GND

C20
10U 5 0V

LM7805

100R

OFFSET ADJ

R4
10K

Gi

Gi

1N 100V

LN10
0R0

G

C6
1U 63 V

BR2

+V

AC

C21
470U 16V

AC

-V

1. 5A 200 V

R9
100R

R8

TS4
MPSA92

1K

TS2

MPSA92

R1

VR1

1KH

TS1
MPSA92

R7
220R

R2
100R

TS3
MPSA92

Gi

C3
47U 5 0V

R6
150R

C4

100P 100 V

-45V2

LN5
0R0

69

Gi

Gi

Gi

R22
220R

G

1K 1K 1K 1K

CLEAN DRIVE1 DRIVE2 FX

G

D5
1N40 07

D9
1N40 07

TFXFS4 FOOTSWIT CH WIRING

C16
47N 100V

R23
10R 2W5

G

R24
10R 2W5

L1
COIL20T

R28
220R

SP4
SPADE 4.8

SP6
SPADE4.8

G

TS7
SAP16N

R14
0R22 5W

R21
0R22 5W

SAP16P
TS11

1

69

+45V

-45V

5

VR2
470RH

+5V

Extension Loudspeak er

SK4
MJACKSJ

Internal Loudspeake r

Head Version Only!

R29
0R22 5W

Mains In

IEC Inlet

Green/Yellow

D D

Flame proof resister

FP

Must only be replaced with same type and rating

Indicates safety critical component
Must only be replaced with approved type

Black(Brown)

White (Blue)

Chassis Transformer Primary

Mai n s T ransf orm er
230V = 560 0-2062B

120V = 560 0-2064B

1

MAINS FUSE 230V =T2A L, 115V = T5A L

Mains Sw itch

Fuse

Fuse Integral to IEC

AC Line(Live)

AC Input (Neutral)

MAINS TRANSFORMER

NOTE:
Set VR2 to give 20mV across TP 1 and TP2

Refer to service manual before adjusting bias preset
Set VR1 to give 0mV across LS+, LS-

2

~200V TO TUBE
PCB 9394 SP3/SP4

~12V TO TUBE
PCB 9394 SP1/SP2

These items not on pcb

3

SP3

SPADE4.8
SP1

SPADE4.8
SP2

SPADE4.8

LN6
0R0

D11

D10

1N40 07

BR1

+V

AC

AC

-V

6A 20 0V

1N40 07

C15

G

220N 250V

4

+45V

C9

C14
100N 63V

4700 U 63V

G

-45V

5

C12

4700 U 63V

-45V2

C8
100N 63V

Gmu

LN7
0R0

R26

680R 5 W

R25
680R 5 W

15V Z D1. 3W

D13

15V Z D1. 3W

6

D12

BLT

Industries

+15V

C17
470U 16V

G

C18
470U 16V

-15V

Title

TFX3 OUTPUT

Number Revis ionSize

A3

Date: 23/1 0/200 3 Sheet of
File: D:\93 97_4\93 97 _4.Sch Drawn By:

9397 4

7

119397_4.Sch

Rich Thompson

8