Akai AM-32 Schematic

AKAI AM-32 (60W-channel)

IMPORTANT : this is not the original AKAI AM-32 schematic .

I have copied this scheme,following the traces and solders of PCB board of the amplifier ,when i repaired it.
I don't guarantee that the whole scheme is exact and my instrument is not very precise, then IF YOU USE IT ,YOU DO IT TO

YOUR RISK.

Also, the schematic is not complete , but include the following circuits:

- left channel final amplifier (note that the right channel has the same component's name of left channel )

- final power supply

- safety circuit

- switch board (D board)

- some components data

Do not include primary power supply

Traced by MPANTEC ,with TARGET3001 FOR PCB POOL ,

+24V (26V 7)

W104

+15V

-15V

start

S1

220V~ 50Hz

IC102 HA12002

R152

F1

Fuse

W102

R116 680 ohm

+B1( +56V 6)

W111

R

L

-B(- 66V6 )+B(+ 66V6 )

LEFT IN

DZ11 4

TR10 2 2S C338 1

(DUA L NP N)

R108 92

-65V 6

+B

DZ11 3

R106 220C101

-1V5 8

TR10 3 2S C291 0

-66V 4

R110 100

R105 3K

R101 100

56V56V2

C131 4u7 50V

-0V7 1
+

R107 92

C134

R102 100

L4L3 L2

prim ary supp ly ( not trac ed he re)

R112 3K

BR1

~

D3

D4

R150

~

D108

D1

+-

D2

+ +

+VCC

4700 uF

4700 uF

R

+VCC (+43 V)

-VCC (-43 V)

-0V7 7

C122

L1

R151

D109

+VCC

C119

Pin8Pin7Pin6Pin5Pin4Pin3Pin2Pin1

R153

C114

C114

C119

R152

-B
D103D104

-66V 6

R111 47K

+B1

R137

R136

C108

-15V

R149

1

+15V

IC10 1 52 18

38

+-+

2

4

R139

R140

C116

+

C109

C142

C103

TR10 4 2S A970

56V8

TR113 2SA 970

LED

54V7

DL11 2

TR10 5 2S A970

TR116 2S A970

56V3

C102

TR106 2SC 2910

R130 27K

+24

R144 10

C111

C112

R156 22K

coll ecto r of TR1 11 r ight cha nnel

R135 47K

SAFE TY

43V7

+

C113R134

+VCC

TR11 2 2S A970

R145 47K

TR11 1 2S C224 0

R133 148 K

D107 1N4 148

D106 1N4 148

D110

Rel1

J101

RIGH T OU T

LEFT OUT

C107

R141

R138

R124 3K

VR10 1 1K

C133

-0V18

-0V5

R125 1K5

C132

R118 470K

1V12

TR901 2SC3116

-1V1 2

R119 470K

C105

R157 68

TR11 0 2S A124 8

R159 68

C106

+VCC

TR10 9 2S C311 9

0V6

1/2 R1 0 R22

R126 100

-0V6

-VCC

-65V 9

TR90 2 2S C385 4

R127 16

1/2 R 1 0R 22

R128 16

R120 220

+VCC

0V

-VCC

TR90 3 2S A149 0

D102 1N4 148

-65V2

R115 220

-B

L101

R143 10

FEED BACK

R142

+

R147