Sony TC-K770ES Service Manual

TC-K770ES
Dolby noise reduction and HX Pro headroom extension
manufactured under license from Dolby Laboratories Licensing
Corporation. HX. Pro originated by Bang & Olufsen.
"DOLBY", the double-D symbol DI] and "HX PRO" are
trademarks of Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mecanism TC-K970ES
Tape Transport Mechanism Type TCM- 200D6
SPECIFICATIONS
Recording system 4-track 2-channel stereo Inputs
Fast winding time Approx. 90 sec. (with Sony C-60 cassette) Line inputs
Bias AC bias hono jacks ;
Heads Erasing head x 1 (S&F head) pa Bee et
Recording head x 1 (Permalloy head)
Playback head x 1 (Permalloy head) Outputs
Motors Capstan motor x 1 (direct drive linear torque Line outputs Rated output level | 0.44 V at a load
BSL motor) (phono jacks) impedance of
Reel motor x 1 (DC motor) 47 k ohms
Signal-to-noise ratio (at peak level)
Headphones (stereo
Dolby NR switch
Output level 0- 2.5 mW ata load
impedance of 32 ohms
|
B-Type ON | C-Type ON prone jack)
Type il (Sony UX-S) 59 dB 68 dB 74 dB eae ey Cony Perse nel)
i A .4 1 50 /hid
Total harmonic distortion 1.0% (with Sony METAL-S cassettes) pimeneiens 7 5% : ; 2) es EAN)
Frequency response (DOLBY NR OFF) including projecting parts and controls
Type IV cassette 20 - 21,000 Hz (+3 GB, IEC) Weight Approx. 6.7 kg (14 Ibs 13 0z)
(Sony METAL-S) 20 - 16,000 Hz [+3 dB OVU recording]
Type II cassette 20 - 19,000 Hz (+3 dB, IEC) Supplied accessory Audio connecting cord (2)
(Sony UX-S)
Type | cassette OT ene Design and specifications subject to change without notice.
(Sony HF-S) Gia AM O00 HZ CES GB EC)
+0.07% W.Peak (DIN)