Fisher CA 870 Service Manual
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Page 1
SERVlCE MANUAL
4%» FISHER
CA-870
WITH WlRELESS REMOTE CONTROL REM -885
Integrated
Stereo Amplifier
(EUROPE)
132 299 40
NOTE:
This model is supplied with the Remote Control REM-885. For details, refer
to the Remote Control REM-885 of the Service Manual (WM-17328). wM-16687
Page 2
CONTENTS
Specifications ............................................................................. 3
Functional Block Diagram .............
Cabinet & Chassis Exploded View (1) ...
Cabinet 8. Chassis Exploded View (2) V... .t .. .. 6
Cabinet & Chassis Parts List ............................................................. 7
Recommended Test Equipments ......................................................... 8
Harmonic Distortion Test ................................................................. 8
Power Amplifier Adjustment .............................................................. 9
Integrated CircuitBlock Diagram ........................................... 9,10,11,12,13
Printed Circuit Board Parts List ................................... 14,15,16,17,18,19,20
Function Printed Circuit Board (Bottom View) .......................................... 20
Input Printed Circuit Board (Bottom View) .......................................... 21.22
Rec Out Printed Circuit Board (Bottom View) ........................................... 22
Tone Printed Circuit Board (Bottom View) .......................................... 23,24
Control Printed Circuit Board (Bottom View) ........................................... 24
Main Amp / Power Transistor Printed Circuit Board (Bottom View) ............... 2526
Speaker Out Printed Circuit Board (Bottom View) ..................................... 26
Power Supply Printed Circuit Board (Bottom View) ................................ 27,28
Power Switch Printed Circuit Board (Bottom View) , ...... 28
Fuse Printed Circuit Board (Bottom View) ................. 28
Pointto Point Wiring Diagram 29,30
Schematic Diagram ............... .. 31,32
Semiconductor Lead Identification ................................................. 33,34