Sony TC-WR635S Service Manual

TC-WR635$
SERVICE MANUAL
US Model
Canadian Model
AEP Model
Uk Model
E Model
Australian Model
Model Name Using Similar Mechanism | TC-WR521/WR590
Tape Transport Machanism |DECK A} TCM-190RA12C
Type ECK B| TCM-190RB12C
SPECIFICATIONS
Recording system 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
Type |
(Sony HF-S)
55 dB
Cassette Type IV Type Il
(Dolby NR off)
)
(Sony METAL-S) | (Sony UX-S)
58 dB 57 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 dB at 1 kHz
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 (Sony | 30 - 18,000 Hz (+3 dB,IEC)
METAL-S) 30 - 13,000 Hz [+3 dB (-4 dB) recording}
Type Il cassette (Sony - 17.000 Hz (+3 dB.IEC
UX-S) 30 ; z (+3 dB,IEC)
Type | cassette -4 0 Hz (+ IE
(Sony HF-S) 30 - 15,000 Hz (+3 dB,IEC)
Harmonic distortion
Wow and flutter
+ 0.13% W.Peak (IEC)
0.07% W.RMS (NAB)
+ 0.18% W.Peak (DIN)
O16 V
47 k ohms
Inputs
Line inputs
(phono jacks)
Sensitivity
Input impedance
— Continued on page 2 —
Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
"DOLBY" and the double-D symbo! 0 are trademarks of
Dolby Laboratories Licensing Corporation.
STEREO CASSETTE DECK —
SONY.