Fisher CA-890 - Table of Contents

CONTENTS
Functional Block Diagram ......... 0c ccc cece cece cece ene e eee eee tent neen tn teeeenaes 3
SPECIUICATIONS seca save elles enlhie oY sak Soa wih andddoies ad peels pins dae eee eeeaaekadacees 4
CirGUlt DESCFIPTION crccieiseiacoudarsaseeaceelea Bares cieconn’s uot Mow belo toda ad o sible Wieates ele ead a Saree ANS 5
Explanation of Function (TMP4270N) ........0....cc cc cece cece eee eee e cc eeeeeaneenans 6,7
Sub CPU TMP4270N Port Assignment ............ 0. ccc cece cece cee cece eee eeneteenenens 8
Explanation of Functions (TMP47C400N) ............. 0c ccc c cece eect e te vesveeaeeeunes 9
Main CPU Port Designation (TMP47C400N) ............ cece cece eee ee eee e eee eeaeenans 10
Recommended Test Equipments .............-.c cece cect e ec ee cece enenes Apis team wis 11
Harmonic Distortion TeSt .......... 0. cc ccc ccc cece eee eee e eee eee e ence een ene neeetneneees 11
Power Amplifier Adjustment ............. cece c ccc cece cece ete ete c eee teeeeeeereeeeeannes 12
Cabinet & Chassis Exploded View (1) ............ 00... c cece cece eee eee eee eeeesueneesaeaee 13
Cabinet & Chassis Exploded View (2) ........... cc ccc cece ccc c cece n sense eeeeueneeeneas 14
Cabinet & Chassis Exploded View (3) ......... 0.0.0. ccc ccc ce eee cen este ee venusneeanenes 15
Cabinet & Chassis Parts List ......... 0... ccc cece cece ence eee nett ee een e ene eeanenanes 16
Printed Circuit Board Parts List ........... 0. cece cece cece eee e teen eee eneeeeens 17 ~ 24
Printed Circuit Board (Bottom View) .............. 0c ccc cece ccc cence cent cere nn nes 25 ~ 34
Point to Point Wiring Diagram ............ ccc ec cee cee ene e nee e eee e eee n eset neta 35,36
Semiconductor Lead Identification. .......... 0... cece cece eee nee cnet nee ee eee ees 37,38
Integrated Circuit Block Diagram ........... 0.00. ccc cece cece tenet een eeeeeneeeee 38,39
NOTE:
Schematic Diagram is separately attached to this manual.