Laney TFX2 Service Manual

TFX2

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

R5
22KSM

U2B

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

DRIVE1

C8

22N 1 00V

C12

100N 63V

Treble

220K A6S

220K A6S

VR3

22KB6 S

G

VR5
100K A6S

VR4

Bass

VR2

Mid

2

DRIVE2

VR7
100K B6S

DRIVE 2FET

DRIVE 1FET

G

Q2
SST177

Q1
SST177

R7
1MSM

1KSM

G

R16

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_5.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

Layout detail

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

R1
3R3 2W 5

100N 50VSM

G

G

G

C47

COC

SW1C
4P2WPSPB

COC

SW2C
4P2WPSPB

COC

SW3C
4P2WPSPB

G

LN1
0R0

U1

LM7805

IN OUT

GND

C46

Note:

10U 50V

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

+5V

+5V

R59
10KSM

+5V

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
330K SM

11 10

R43
330K SM

9 8

R42
330K 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

G

R51

10KSM

C21
1N 10 0V

4N7 1 00V

C23

R48
10KSM

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 U1 , MI S S OUT LN 1
NOTE: TFX3 - FIT LN 1, MI S S OUT U 1

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 : 15/09/2003 Sh e et of
File: D:\9 390_5\9 390_ 5.Sch Draw n By:

9390 5

7

1

G

5

A A

1

69

1K 1K 1K 1K

2

+5V

3

4

5

6

7

Gi

SK3

FX Sen d /Line Out

MJACKSJ

Gi

SK2
MJACKGSJ

FX Retur n

8

CLEAN DRIVE1 DRIVE2 FX

G

B B

C C

TFXFS4 FOOTSWITCH WIRING

HD1

To Preamp PCB

10
8

6
4
2

9

+5VPREAMP

7
5
3
1

-15V+15V

LN2
0R0

C4

R3
220R

Gi

C2
470P 1 KV

R11
22K

22U 5 0V

C1

0.47U 63 V

G

Gi

LN6
0R0

G

R12
1K

D1
1N40 07

Gi

R15

47K

D2

R13

1N41 48
C13
4U7 6 3V

4K7

Gi

R2
1K

R1
10K

R8
10K

C12
100U 25 V

G

R4
10K

713
+VI +VP

-IN

2

+IN
GIN

STBY
MUTE
MSGND

1

G

TDA72 94

-VI -VP

LN4

0R0

0R0

C3
100N 63V

OUT

3

Gi

4
9

10

Gi

-30V2

LN3

BS

-30V

+30V

U1

G

14

C6
22UF 50V

6

C5
100N 63V

R5
470R

G

R9

FP

10R 2W5

C14
100N 63 V

C9
10N 1 00V

G

470R 0.5W

R6

R7

47R

0R47 5WF PSO

G

C11

R10

47N 100V

G

To Loudspeaker +V

SP5

To Loudspeaker -V

R14
47R

G

These items not on pcb

-30V2

R19
150R 5 W

D6

15V Z D1. 3W

D3

15V Z D1. 3W

D4

15V Z D1. 3W

G

G G

G G

R17

270R 6 W

270R 6 W

LN5
0R0

R16

5

G

C17
100U 25V

C15
47U 5 0V

C16
47U 5 0V

+5VPREAMP

+15V

-15V

6

BLT

Industries

Title

TFX1/TFX2 OUTPUT PCB

A3

Date: 17/0 9/200 3 Sheet of
File: C:\D ocu ments and S ett ings\..\9389 _4.Sch Drawn By:

230V = T1A L

Mains In

IEC Inlet

Green/Yellow

Chassis

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

!CAUT ION! VERY H OT
65MMFINNEDHS

1

115V = T2A L

Brown

Fuse Integral to IEC

Blue

Mains Sw itch

AC Line(Live) (White)

Transformer Primary

AC Input (Neutral) (Black)

2

(Red)
(Black)
(Red)

~200V TO TUBE
PCB SP1/SP2

TFX2 ONL Y

~12V TO TUBE
PCB SP3/SP4

TFX2 ONL Y

3

+30V

BR1

SP4

G

SP1
SP3

220N 250V

4

C10

+V

AC
AC

-V

6A 20 0V

Revision Hi story

C17 Added.
D5 from 15 V to 5V1
Gnd Track chan ges

C7
3300 U 50V

G

C8
3300 U 50V

-30V

Gi

SK4
SJACKSJ

HeadPhones

SK1

Extension Loudspeaker

MJACKSJ

SP6

FS2 FOOTSWITCH

TFX1FX1

2
4
6
8

10

Gc

2
4
6
8

10

TFX1DRIVE 1

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

Fitted on TFX1 model only

TFX4 FO OTS WITCH

SK6
DB09M

D5
5V1 Z D1. 3W

5

FX2
DRIVE 2
CLEAN
FX1
DRIVE 1

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

Fitted on TFX2 model only

HD3

1
3
5
7

Gd

9

HD10 W.5

R18
680R 2W5

HD2

1
3
5
7

Gc

9

HD10 W.5

Number Revis ionSize

9389 4

7

Gc

119389_4.Sch

Gd

SK5

SJACKSJ

Gd

1

69

Rich Thompson

8