Sony tc k 777 es mk2 service manual

Page 1

SERVICE MANUAL

AEP Model

'Dolhy' and the double-D symbol are the trade marks of
Dolby laboratories Licensing Corporation. Noise reduction
system manufactured under license from Dolby Laboratories
Licensing Corporation

SPECIFICATIONS I Tape Transport Mechanism Type 1 TOM-120D4J

Recording system 4~track Zchannel stereo

Bias frequency 105 kHz
Signal-tonnise ratio (NAB, at peak level)
°"Y NH MC" OFF BIYPE 0N GTYPE ON
Cassette
TYPE IV (Sony METAL-ES) 61 dB 68 dB 74 a5
TVPE ll (Sony UCX»S) 59 dB 66 dB 72 dB
TYPE I (Sony HF-S) 57 dB 64 dB 70 dB

Total harmonic distortion

07% (with Sony METALAES cassettes)

Frequency response

Wow and flutter

Inputs

MICROFILM

DOLBY NR OFF

- With TYPE IV cassette (Sony METAL-ES)
10420000 Hz
15-19,000 Hz (: 3 (15)
15-14000 Hz (1 3 dB, 0 VU recording)
15-19000 Hz (DIN)

- With TYPE II cassette (Sony UCX-S)
10-20,000 Hz
15-18.000 Hz (1 3 dB)
154134100 Hz (DIN)

0 With TYPE I cassette (Sony HF-S)~
10- 19,000 Hz
15~17,000 Hz (DIN)

002% WRMS (NAB)

. meson/0 (DIN)

Line inputs (phono jacks)
Sensitivity 77.5 mV
Input impedance 47 k ohms

Outputs Fixed line outputs (phono jacks)

Output level 0.44 V at a load impedance of
47 k ohms
Load impedance over 10 k ohms

Variable line outputs (phono jacks)
Maximum output level 0.44 V at a load
impedance of 47 k ohms with LINE OUT level
control at MAX"
Variable from 0.44 V to 0V
Load impedance over 10 k ohms

Headphone output
Output level variable from 1.6 mW to 0 mW at
a load impedance of 32 ohms

- Continued on page 2 -

SAFETY-RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BY SHADING AND MARK

A ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN 'IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY,

3mm CASSETTE DECK
ONYZ

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Tc-K777Esn

General
Power requirements
220 V ac, 50/60 Hz
Fbwer consumption
38 watts
Dimensions Approx 430 x 110 x 390 mm (w/hld)
(167/3 x 4313 x 153/8 inches)
including projecting parts and controls
Weight Approx. 108 kg (23le 13 oz)

FUNCTION OF CONTROLS

CDCAU

LED peak program meters
Response range - 40 dB to +10 dB
Frequency response
20»20,000 Hz t 1.5 dB
Response time 1 millisecond
Decay time (from 0 dB to ~ 20 dB)
750 milliseconds
Overshoot none
indicator elements 30 elements for each channel

[I] [BEE-CD