Sony tc k 679 es service manual

Page 1

TC-K679ES/ K690

SERVICE MANUAL us Model

TC- K679ES
TC' K690

Canadian Model
UK Model

TC*K67QES

AEP Model

TC K690

Dolby noise reduction manufactured under license from

Dolby Laboratories Licensing Corporation.

"DOLBY" and the double-D symbol DU are trademarks of

Dolby Laboratories Licensing Corporation PhotozTc~ K679ES

Model Name Using Similar Mecanism TC-K677ES/K670

SPECIFICATIONS
Tape Tlanspofi TC- K679E$ TCM- 200V9
Recording system 4-track 2-channel stereo Mechanism TYDe TC- K690 TCM- 200V] 0
Fast winding time Approx 90 see. (with Sony 0-60
cassette)
Bias AC bias lnputs
Heads Erasing head xdt (fagohiadlj) Line inputs Sensitivity 01 6 V
Recording hea >< ea (phono lacks) . .
Playback head x 1 (LA head) (K679ES) '"PU 'mpedance 47 0th
Playback headx 1 (SD head) (K690) Outputs
Motors Capstan motor x 1 (DC servo motor) ,
Reel motor X 1 (DC motor) Line outputs Rated output 0.5 V at a load
ASlST (mechanical drive) motor x 1 (p"°° lac) 'eve' 139$??? °
. , . (DC motor) Load Over 10 kilohms
SIgnaHo-noise ratio (at peak level) impedance
Cassette Type Iv Type II Type l Head hones o t t i | 0 ~- 3 mW at a load
(Dolby NR (Sony Metal- (Sony uva) (Sony HF-S) (Wei; Phone jack) 9 eve impedance 0,
OFF) Select/S) 32 ohms
60 dB 59 dB 57 dB
Measured at peak level weighted without NH. The SIN is General
improved by about 15 dB at 500 Hz and by about 20 :15 Power requlrements 120V AC. 60H: : K679ES (US.Canadian)
about 1 kHz with Dolby-C NFl on, and by 5 dB at 1 kHz and K690 (US)
by 10 dB about 5 kHz with Dolbva NR on. 240v Ac. 50H: : K679Es (UK)
220 - 230V AC. : K690 (AEP. Germany)
Harmonic distortion (or 240V AC adjustable
04% (with Sony Type I, 160 nWb/m, by Sony personnel). 50/ GOHze
315 Hz, 3rd H,D,) Power consumption 19 W
145% (With 30W TYpe 1V. 250 nWb/m, Dimensions Approx 430 x 123 X 300 mm (w/h/d)
315 Hz, 3rd HD-l (17 x 4% x 117/3 inches)
Frequency response (DOlbY NR OFF} including projecting parts and controls
Type IV cassette 20- 21 .000 Hz (e seam) (K679ES) WW Approx 4-9 kg (10 lbs 13 02)
(Sony Metal-Select/ 20- 20,000 Hz (t SdBJEC) (K690) Supplled accessories
3) 20' 16.000 HZ [1 3dB <' MB Audio connecting cords (2)
recording)] V 4 ~ _ .
Type ll cassette 20-19,000Hz ( i 3dB,lEC) (K679Es) 5:1:an and speulications are subject to change Without
(Sony Ux-S) 20- 18,000 Hz (: 3dB,lEC) (K690)
Type I cassette
2 -l7,0 H (t 3 dB,IEC
° > STEREU CASSETTE DECK
Wow and llutter :0t09% W.Peak (lEC)

0.05% WeRMS (NAB)
i0.l4% W,Peak (DIN)
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