Sony TC-K661S Service Manual

SERVICE MANUAL
TC-K661S
AEP Model
UK Model
Dolby noise reduction manufactured under license form
Dolby Laboratories licensing Corporation.
"DOLBY" and the double-D symbol! [J are trade, marks
of Dolby Laboratories Licensing corporation.
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type TCM-200V21
SPECIFICATIONS
Recording system 4-track 2-channel stereo
Fast winding time Approx. 90sec. (with Sony C-60 cassette)
Bias AC bias
Heads Erasing head X 1 (F&F head)
Recording head X 1 (SD head)
Playback head x 1 (SD head)
Capstan motor X 1 (DC servo motor)
Reel motor X 1 (DC motor)
Assist (mechanism drive) motor X 1
(DC motor)
Motors
Signal-to-noise ratio (at peak level and weighted)
Cassette Type IV Type i Type 1
(Dolby NR off) 61dB 594B
S/N ratio improvement (approximate values)
With Dolby B NR on: 5 dB at 1kHz ; 10 dB at 5 kHz
With Dolby C NR on: 15 dB at 500 Hz ; 20 dB at 1 kHz
With Dolby S NR on: 10 dB at 100 Hz ; 24 dB at 1 kHz
Harmonic distortion 0.4% (with Type I , 160 nWb/m,
315 Hz, 3rd H.D.)
1.5% (with Type IV , 250 nWb/m,
315 Hz, 3rd H.D.)
Frequency response (Dolby NR off)
20-20,000Hz ( + 3 dB, IEC)
Type IV Cassette | 99_ 16 000Hz (+3dB(—44B recording)]
Type I Cassette 20~- 18,000Hz ( + 3 dB, IEC)
Type I Cassette 20- 17,000Hz ( + 3 dB, IEC)
Type IV : Sony Type IV (METAL)
Type Il : Sony Type I (HIGH)
Type I : Sony Type I (NORMAL)
Wow and filuter + 0.065% W.Peak (IEC)
0.045% W. RMS (NAB)
+ 0.12% W.Peak (DIN)
Inputs
Line inputs 0.16V
(phono jacks) Input impedance 47 k ohms
Output
Line outputs
(phono jacks)
0.5V at a load
Rated output level impedance of
47 k ohms
Load impedance Over 10 k ohms
0-3mW ata load
oraa ea ack) | Output level
impedance of
(stereo phone jack)
32 ohms
— Connecting on page 2 —
STEREO CASSETTE DECK
SONY.