Sony tc k 420 service manual

Page 1

SERVICE MANUAL

AEP Model
UK Model
Australian Model

SPECIFICATIONS

Recording system
4-track 2~channe| stereo
Bias AC bias
Motors Capstan motorxt (DC servo motor)
Reel motorx1 (DC motor)
0.07% WRMS (NAB)
10.18% (DIN)
Fast winding time
Approx 90 sec. (with 0-60 cassette)
Frequency response (DOLBY NFl OFF)

Wow and flutter

Model Name Using Similar Mechanism

TC-K510

Tape Transport Mechanism Type

TCMCMAY 328

TYPE IV cassette
(Sony METAL-ES)

3048.000 Hz (1'3 dB, DIN)
30-15,000 Hz (OVU recording, :3 dB)

TYPE ll cassette

30-17,ooo Hz (:3 dB, DIN)

(Sony UX-S)

TVPE l cassette
(Sony HF-S)

30-15900 Hz (:3 dB, DIN)

Signalto-noise radio (NAB, at peak level)

Dolby NR switch B~TYPE C-TYPE

Cassette OFF ON ON

TYPE IV (Sony METAL-ES) 59 dB 57 dB 74 dB
TYPE II (Sony UX-S) 58 dB 66 dB 73 dB
TYPE | (Sony HF-S) 56 dB 64 dB 71 dB

Total harmonic distortion
10% (with Sony METAL-ES cassettes)
Inputs

Line inputs Sensitivity 77.5 mV (-20 dB)

(phono JackS) 50k ohms

Input impedance

Outputs

Line outputs
(phono jacks)

Rated output level 0.44 V (-5 dB) at a load

impedance of 47k ohms
Over 10k ohms

Load impedance

Headphones Output level 0.3 mW at a load
(stereo impedance of 32 ohms
phone jack

General

Power requirements

220v Ac (or 240v AC), 50/60 Hz
Power consumption

16W

Dimensions Approx. 430><123><285mm (w/h/d)
(17 X47/a X11 4 inches)
including projecting parts and controls
Weight Approx. 4.1 kg (9 lbs 1 oz)

Supplied accessory
Audio connecting cord (2)

Design and specifications subject to change without notice,

Optional accessory
Wireless remote control unit RM-QOOW.
Wireless remote control unit RMJ701.
Note
This appliance conforms with EEC Directive B7/308/EEC
regarding interference suppression.

STEREfl CASSETTE DECK
SONYZ