Sony tc wr 745 s service manual

Page 1

TC-WR7453/WR801ES

SERVICE MANUAL

US Model
Canadian Model
TC-WRBO1ES

AEP Model

E Model
Australian Model

TC-WFT745S

Photo : Tc-WR801ES

" Dolby noise reduction and HX Pro headroom extension
manufactured under license from Dolby Laboratories Licensing
Corporation. HX Pro originated by Bang & Olufsent

of Dolby Laboratories Licensing Corporation.

Recording system
Fast winding time
Bias

Signal-to-noise ratio (at peak level and weighted)

Model Name Using Similar Mechanism TC-WR64SS

Tape Transport Machanism DECK A

TCM-190RB12C7

Cassette
(Dolby NR OFF)

S/N mtio improvement (approximate values)
with Dolby B NR on: 5 dB amid-12:10 dB 2115 kHz

DOLBY, the double-D symbol III and HX PRO" are trademarks Type DECK B
SPECIFICATIONS

4-lrack chhannel stereo Outputs

25%;: 90 59° (wuh 5 0 cam) Line outputs Rated output level 015 v at a load impedance of
(phono jacks) 47 lc ohms

Type IV Type M Type, Load impedance Over 10 k ohms

53 d3 57 d5 55 dB Headphones Output level 1 mw at a load impedance

(stereo phone jack) of 32 ohms
General
Power rerluiremems US, Canadian model : 120V Ac, 60Hz

with Dolby C NR on115 dB at 500 Hz; 20 dB at 1 kHz
with Dolby 3 NR on:10 dB at [00 Hz; 24 dB at 1 kHz

Harmonic distortion

0.4 % (with Sony Type [,1in nWb/rn,315 Hz,

3rd H.Di)

1.3 arr (with Sony Type w, 250 nWb/mr

315 Hz,3rd H.D.)

Frequency response (Dolby NR OFF)

Type IV cassette

30 » 18,000 Hz (13 dB, IEO

30 - 13,000 Hz [13 dB (4 dB) recording]

Typo l1 cassette

30 A 17000 Hz (13 dB, IEC)

Type I cassette

30 A 15,000 Hz (13 dB, IEC)

Type 1v: Sony Type IV (METAL)
Type II: Sony Type ll (HIGH)
Type I: Sony Type I (NORMAL)

Wow and flutter

inputs

t 0113 /7: W.leak (IEC)
0.07 % W.RMS (NAB)
i 0.18 % W,Peak (DIN)

Line inputs
(plmno jacks)

Sensitivity

0,16V

lnput impedance

47 k ohms

AEP, Garman modal : 220»230V AC, 50/60Hz
E modal : 120, 220 or 240V AC adjustablec 50/60Hz
Australian modcl : 240V AC, 50/6011:

Power consumption 30 w

Dimensions Approx. 430 x 123 x 290 mm (w/h/d)
(l7 x 4 7/. XII /2 inches) including proicding
parts and controls

Mass Approx. 45 kg (9 lbs 15 oz)

Supplied accessories
Audio connecling cords (2)

Remote commander RM-I903 (Canadian model only)

Design and specifications subject to change without notice.

STEREO CASSETTE DECK
ONYs