Sony TC-818 - Page 2

TC-818 |
REPAIRING PRECAUTION . PARTS IDENTIFICATION
[To apply B+ voltage]
Thepower of this unit is fed from amilifier.
Because of this, connect the DC Power supply as
illustrated below when this unit alone operates.
DC Power
supply
GND 20VDC 2A =
©
(0) (33) (34) (34) [30]
(26) Cassette holder
Tape operation buttons
<4 PP Fast winding
(> :Forward play
<J:Reverse play
[ ]:Stop
§8:Pause
O :Record muting
@ : Record
EJECT button
[31] DIRECTION MODE selector
DOLBY NR = switch
AMS/BLANK SKIP button
DUBBING SPEED selectors
AUDIO BOARD
—Component Side—
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK /\ OR DOTTED
LINE WITH MARK /\ ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
TABLE OF CONTENTS
Section Title Page Section . Title Page
SPCCIHGaliONs: 2:4. < 45h Bie a Ae eh ee 1 3. DIAGRAMS
Parts Edentieauoe es OR a GRE Tee Sale 8h 0? ORE an ee He LS, fo eee cae 2 3-1. IC801 M50964-212FP Pin Functions ... ; 7
Troubleshooting ............ 000002 eee 2 3-2. Block Diagram ................4.. 9
3-3. Printed Wiring Boards .............. 1]
1. DISASSEMBLY .............-.--. 3 3-4. Schematic Diagram ................ 15
2. ADJUSTMENTS 4. EXPLODED VIEWS............... 18
2-1. Mechanical Adjustments ............ 4 .
2-2. Electrical Adjustments.............. 4 5, ELECTRICAL PARTS LIST......... 22.