Yamaha k 1020

Page 1

STEREO CASSETTE DECK

-"=-..:..-- K-1020

I FRONT PANEL

,71.

1 / " "* "" -*i-\
A I
i, i IMPORTANT NOTICE
i
1' This manual has been proyided ior the use pi authorized Yamaha Retailers and their service personnel, 1'
it has been assmrtcd that basic serwcc procedures luhcrant to the industry, and more specificaliy Yamaha
. p i Products, are already known and undtrstood by the users, and have therefore not been restated,
WARNING: Failure to {oiiow appropriate scrwcc and safety procedures when scrviclrlg :hls product
may result in personal injury, oestrucrion OI expensive components and iailure oi the
product to perform as specified. For these reasons, we advise all Yamaha product owners
I i that all scryice required should be periormed by an authorized Yamaha Retailer or the
appointed service representative,
IMPORTANT: The presentation or saint of this manual ro any individuai or firm does not cumuture
authorization, certification, recognition of any applicable technical capabilitltes, or
i establish a principle agent relationship oi any lorm.
The data pmvlded rs believed I0 be accurate and applicable lo the unltls indicated on the cover. The
i research, engineering. and scrvlce departmenls of Yamaha are continually striving to improve Yamaha
i pruduclsr Modifications are, therefore, inevrtaple and changes In specification are sulnect to change wilhoui
1 notice Oi obligation to retrofit. Should any discrepancy appear to exist, piease contact the distributors
Seryicc Dillsmrls
F l WARNING: Slam discharges can destroy expensive components, Disenarge any static electricity your
i body may have accumulated by grounding yourself to the ground buss in the unir (heavy
gauge black wires connect to this buss).
; IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck ali work before
l you apply power [0 [he unit.
_ ,/
TOSERVICEPERSONEL........t.......s. 1 LSIDATATABLES .......... . ........ .. 12
REARPANELS ............... a.........1 TIMINGCHART.......................13
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . 2 PRINTED CIRCUIT BOARD (Pattern Side) .. 14~ 17
SPECIFICATIONS ....................... 3 WIRING.............................18
INTERNALVIEW......r................3 ICBLOCK........................19~21
DISASSEMBLY PROCEDURES .. . . . . . . . . . 4N6 SCHEMATIC DIAGRAM . . . . . . ...... . . . . 22,23
MECHANICALADJUSTMENTS........... 7~9 PARTSLIST...r......,..........a.24~36
ELECTRICAL ADJUSTMENTS .. . . . . . . . . _9~ 11

E m ® YAMAHA

NIPPON GAKKI C0,. LTD. HAMAMATSU, JAPAN
2.6K 633a @Primed in Japan. '85. I

Page 2

K-l 020

ITO SERVICE PERSONNEL

1. Critical Components Information.
Components having special characteristics are marked
and must be replaced wuth parts having specifications equal
to those originally installed.

2. Leakage Current Measurement (For 120V Model Only).

"335]

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W

EN

TER

When service has been completed, It is imperative that you
verify that all exposed conductive surfaces are properly /'
insulated from supply circuits. - :D
I Meter impedance should be equivalent to 1500 ohm shunted WALL :
by 015: OUTLET INSULATING TABLE 7

0 Leakage current must not exceed 0.5mA.

0 Be sure to test lor leakage With the AC plug in both polarities.

I REAR PANELS

U.S.A. & Canadian models

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