Sony TC-WR645S Service Manual

SERVICE MANUAL
license from
Dolby noise reduction manufactured under
Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbo! 0 are trademarks of
Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism
US Model
Canadian Model
AEP Model
Uk Model
E Model
Australian Model
TC-WR635S
DECK A | TCM-190RA12CL
DECK B | TCM-190RB12C7
Tape Transport Machanism
Type
SPECIFICATIONS
4-track 2-channel stereo.
Fast winding time Approx. 90 sec. (with Sony C-60 cassette)
Bias AC bias
Signal-to-noise ratio (at peak level and weighted)
Recording system
Cassette Type IV Type II j Type I
CO 58 dB 57 dB 55 dB
S/N ratio improvement (approximate values)
with Dolby B NR on: 5 dB at 1 kHz; 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 dBat 1 kHz
Harmonic distortion 0.4 % (with Sony Type I, 160 nWb/m, 315 Hz,
3rd H.D.)
1.8 % (with Sony Type IV, 250 nWb/m,
315 Hz, 3rd H.D.)
Frequency response (Dolby NR OFF)
Type IV cassette
30 - 18,000 Hz (+3 dB, IEC)
30 - 13,000 Hz [+3 dB (-4 dB) recording]
Type I cassette 30 - 17,000 Hz (£3 dB, IEC)
Type I cassette 30 - 15,000 Hz (+3 dB, IEC)
Type IV: Sony Type IV (METAL)
Type I: Sony Type II (HIGH)
Typel: Sony Type I (NORMAL)
+ 0.13 % W.Peak (IEC)
0.07 % W.RMS (NAB)
+ 0.18 % W.Peak (DIN)
Input impedance 47 k ohms
Wow and flutter
Inputs
Line inputs
(phono jacks)
Outputs
Line outputs
(phono jacks)
Rated output level 0.5 V ata load impedance of
47 k ohms
Load impedance Over 10 k ohms
Headphones
(stereo phone jack)
Output level 1 mW ata load impedance
of 32 ohms
General
Power requirements US, Canadian model : 120V AC, 60Hz
AEP, German model : 220-230V AC, 50/60Hz
UK model : 240V AC, S0Hz
E model: 120, 220 or 240V AC adjustable, 50/60Hz
Australian model : 240V AC, 50/60Hz
Power consumption 29 W
Dimensions
Approx.
430
x
123
x
290
mm
(w/h/d)
(17
x47/sx11'/2
inches)
including
projecting
parts
and
controls
Mass Approx. 4.5 kg (9 Ibs 15 oz)
Supplied accessories
Audio connecting cords (2)
Remote
commander
RM-J902_
(Canadian
model
only)
Design
and
specifications
subject
to
change
without
notice.
STEREO CASSETTE DECK
ONY.

Sony TC-WR645S Specifications

General

Brand	Sony
Model	TC-WR645S
Category	Cassette Player
Language	English