AMPEG BA210, BA115 Service Manual

A

B

			+16V
1				700mV RMS
			D10
	J1		1N914	TP1
		C37	75V PIV
	R62			3	1
	22K	.047	R2	2	U1:A
		100V
			680K		TLO-72
		D13		C2
		1N914	R3		R12
		75V PIV			22K
			6.8K	1
				50V	R10
			-16V	+16V	220	C4
	J2					100
						35V
	R65
	100K
	C42
	56 pF
2	200V

3

NET00098	100-120V 50/60Hz		4a	SB
	FC1		2.5a	SB
	220-240V 50/60Hz
		F1
			FUSE CLIP
	FUSE CLIP	4 A SB FC2
{Value}				J18
	J6			{Value}
				{Value}
				J10

C3

.0033

250V

4	J8
	{Value}
	J13
{Value}	{Value}
J14	J12
{Value}	{Value}
J15	J11
	{Value}

5

CAUTION:

THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.

NOTES:

1) CAUTION: SHOCK HAZARD!!

6 THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS.

2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL.

CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.

3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE AND 10 MEGOHM DIGITAL VOLTMETER.

C

D

E

F

G

H

C32

.001

100V

R58

R55

R54

C27

47K

C35

47K

22K

.22

J25

.047

50V

R53

R88

3.8VRMS

C30

100V

47K

22K

C9

TP2

.0047

R87

250mV RMS

5

7

R63

C36

100V

22K

U1:B

TP5

1

6

1.15VRMS

50V

R13

TLO-72

4.7K

1

R57

R52

R48

C26

CW

LEVEL

J5

100K

50V

22K

22K

22K

P9

PAGE_NEXT

TP6

.22

J4

C33

1

R67

50V

R47

450mV RMS

20K RA

RING

2

.047

47K

10K

100V

CW

TP4

JW51

1.15VRMS

RING_SW

3

450mV RMS

U3:B

C50

TP7

TIP_SW

5

5

R11

R15

TLO-72

TUNER OUT

STYLE

TP3

7

6

TIP

C41

S1

P8

10

22K

10K

2

4

CMN

5

7

C45

R32

50K L

TLO-72

3

1

JW52

SLVE_SW

100 pF

CW

C51

35V

6

U2:B

R14

SW1

U3:A

HPGS

200V

2.2

1K

HIGH

R77

SLEEVE

3

P1

R45

C25

TLO-72

50V

C47

56 pF

47K

I

I

R64

C34

R29

4.7K

50K L

CCW

200V

R78

C7

R81

2.2K

CW

47K

.22

R36

100K

.0022

C

C

2.2

GAIN

50V

P7

100V

R86

22K

270

22

50V

22K

47K

50K L

50V

R56

CW

O

O

2

MID

C46

47K

U4:A

1

2

3

R46

C29

C28

P6

.022

MUTE

NE5532

1

50V

R80

R76

C48

3

22K

.015

.22

CW

50K L

22K

22K

.047

R38

100V

J24

50V

50V

R82

22K

LOW

{Label}

22K

R27

47K

R37

R79

6

7

C49

R83

22K

U4:B

R51

C23

C22

1K

5

22

270

3

NE5532

1

50V

2.2K

U2:A

.033

.033

2

R30

C24

50V

50V

TLO-72

22K

.22

R40

R39

50V

4.7K

100K

TP8

1.1VRMS

{Value}

J19

D1

R1

J16

{Value}

2.2K

+16V1

{Value}

+50V

RED

1/2W

R5

J17

J28

J22

ACV

100

1

+16V

{Value}

DCV

2

-16V

BR1

R68

3

PAGE_NEXT

KBU1004G

+16V

C6

330

4

J20

C19

10W

D11

C39

C5

{Value}

5600

.1

1N5353B

5

{Value}

80V

100V

16V

100

22

C1

J7

35V

C21

C18

16V

C43

6

.047

.047

.047

7

.0033

{Value}

100V

100V

100V

HPGS

250V

C14

8

J9

5600

C38

D12

80V

.1

1N5353B

C40

C8

100V

16V

100

22

35V

16V

R66

-16V

DCV

330

ACV

10W

R9

-50V

-50V

100

-16V1

J13

BLK

J13

BLK

J17

BLK

AC

AC

LINE

J12

BLU/WHT

LINE

J17

BLU/WHT

J13

BLU/WHT

AC

LINE

BLUE

J12

BLUE

J16

J12

BLUE

AC

J14

WHT

NEUTRAL J7

WHT

J14

WHT

0

1-9-03 CONTROL ISSUE

J11

BROWN

J15

BROWN

REV

Date

DESCRIPTION

Ecr(s)/Ecn(s) Chgd By Appvd by Date

J15

BROWN

THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC

J11

GRAY

Signatures:

Date:

J17

GRAY

J11

GRAY

Drawn:

RLB

4/18/00

11880 Borman Drive, St. Louis, MO 63146

Checked:

First Used On:

AC

J7

VIOLET

Released:

BA210/115HP

J9

VIOLET

NEUTRAL

AC

J7

VIOLET

Plot Date:

Thu Jan 09, 2003

Drawing Size:

Drawing Title:

NEUTRAL

Plot Time:

08:13:03

Drawing Type: Schematic

SCHEMATIC -BASS AMP

D

Tolerance:

Class Code:

NONE

Drawing Number:

Sheet 1

of 2

07S457-XX

1

2

3

4

5

6

A

B

C

D

E

F

G

H