Fisher CA 276 Service Manual

Page 1

Service
Manual '

FISHER

CA - 276
INTEGRATED STEREO AMPLIFIER

Page 2

CONTENTS

Functional Block Diagram ................................................................ 2
Specifications ................ .. .. .. 3
Circuit Description ...................................................................... 4,5
Parametric Equalizer Controls Response ................................................ 5
Recommended Test Equipments ......................................................... 6
Harmonic Distortion Test ................................................................. 6
Power Amp. Adjustment ................................................. . .................. 7
IC EquivalentCircuit& Block Diagram ............................................... 7,8,9

Cabinet& Chassis Exploded View (1)
Cabinet & Chassis Exploded View (2) ........
Cabinet & Chassis Parts List ..

P.C.B.Assy Parts List ............................................... 14,15,16,17,18,19,20
Printed Circuit Board (Bottom View) .......................... 21 ,22,23,24,25.26.27,28
Point to Point Wiring Diagram ........................................................ 29,30
Schematic Diagram .................................................................. 31,32
Semiconductor Lead Identification ............................................. . 33
PHONO©->
Equalizer
Amplifier
Pre Amplifier
TUNER ©-> T000
Function TAPE 1 TAPE 2
CD© ' Swrtch -§ Switch-p Switch E/F -> +/--> ---> 21%;,
AUX © M d S b '
VIDEO .. o e u .5°"'°
©.- 5 Ell me" (was)
0 m
TAPE1 RecOut g E
© / a Loudness
Play Back ( Control
TAPE 2
/
/
/
/
/
/
Parametric / Power Amplifier
EqualizerControl // Protector 5
/ Muting Relay
Low High / ->
>-> Band Band _ To Speakrs
/ PreOut Main In
/ .__.
25H: EOOHz Balance1__J/%fi:; Head Phones
1 5
8:1on 213ka -> Power
LevelMeter
o/c
Parametric Control Thermc
smart Sensor
Tharmo
Sensor Cooling Fan
(
- fl