Philips ah 784 rec service manual
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Page 1
22AH784-44 Stereo Receiver
Sewfige
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SerVIce
V Service Manual
PHILIPS HIGH FIDELITY LABORATORIES, LTD.
SERVICE DEPT. P.O.BOX 2208 FORT WAYNE, INDIANA 46801
06478 Philip: High Fldelirv Labornorlu LTD., 1978 Printed in USA. I H I ll I s
Page 2
TABLE OF CONTENTS
Description . Fs-gs
Specifications ........................................................................... 1
Chassis Identification ...................................................................... 1
Front Panel.Functions ..................................................................... 2
Rear Panel Functions ..................................................................... 3
Output Transistor Replacement ............................................................... 3
Circuit Description ..................................................................... 4-7
Alignment and Adjustments ............................................................... 9-11
Dial Stringing Procedure ................................................................... 19
Replacement Parts List .................................................................. 20-21
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LIST OF ILLUSTRATIONS
Description Pflc;
r
Graphs ............................................................................... 1
Front Panel ............................................................................ 2
Rear Panel ............................................................................. 3
Chassis Top View ........................................................................ 8
Alignment Reference Guide .................................................................. 9
Schematic Diagram ..... _, ............................................................... 12-14
IC Voltage Charts ....................................................................... 14
Main P.C. Board (Copper Side) ............................................................. 15-16
Switch Guides .......................................................................... 16
Main PAC. Board (Component Side) .......................................................... 16-17
Gain Diagram .......................................................................... 18
Dial Stringing Diagram .................................................................... 19