Sony TC-WR87ES Service Manual

SERVICE MANUAL
US Model
Canadian Model
TC-WR775
US Model
TC-WR87ES
Photo: TC-WR87ES
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)
Dolby NR switch
Cassette
[ Type IV 58 dB (WR775)
(Sony METAL-SLT)
C-Type ON
66 dB (WR775) 73 dB (R775)
59 dB (WR87ES) | 67 dB (WR87ES) | 74 dB (WR87ES)
57 dB (WR775) 65 dB (WR775)
58 dB (WR87ES) | 66 dB (WR87ES) | 73 dB (WR87ES)
(
. 55 dB (WR775) 63 dB (WR775) 70 dB (WR775)
DE ee 56 dB (WR87ES) | 64 dB (WR87ES) | 71 dB (WR87ES)
Total harmonic distortion 1.0% (with Sony METAL-SLT cassettes)
Type {I (Sony UX-S) 72 dB (WR775)
Frequency response (DOLBY NR OFF)
| Type IV cassette | 30 - 18,000 Hz (43 dB, IEC)
(Sony METAL-SLT) | 30 - 15,000 Hz [+3 dB OVU(-4 dB)recording]
| Type I! cassette | 30 - 17,000 Hz (+3 dB, 1EC)
(Sony UX-S)
Type | cassette a a
(Sony HF-S) 30 - 15,000 Hz (+3 dB, IEC)
£0.13% W.Peak (IEC)
0.07% WRMS (NAB)
+0.18% W.Peak (DIN)
Wow and flutter
Inputs
Line inputs | Sensitivity 77.5 mV
(phono jacks) | Input impedance 47 k ohms
Model Name Using | TC-WR775 | TC-WR720/ WR720A
Similar Mechanism TC-WR87ES| TC-WR80ES/WR820A
TC-WR775 | DECK A,B |TCM-190RB12
TC-WR87ES; DECK A,B} TCM-190RB31
Tape
Transport
Mechanism
Type
Outputs
Line outputs Rated output level
(phono jacks) |
0.32 V at a load
impedance of
47 k ohms
Load impedance | Over 10 kohms
Output level 0.2 mW at a load
impedance of 32 ohms (WR775)
0-1.25 mW at a load
impedance of 32 ohms (WR87ES)
Headphones
(stereo phone jack)
General
Power requirements 120 V AC, 60 Hz
Power consumption 30 W :
Dimensions Approx. 430 x 135 x 300 mm (w/h/d)
(17 x 5% x 117/s inches)
including projecting parts and controls
Weight Approx. 4.9 kg (10 Ibs 13 oz) (WR775)
Approx. 5.3 kg (11 Ibs 11 0z) (WR87ES)
Supplied accessory Audio connecting cords (2)
Design and specifications subject to change without notice.
WRT75 : TC-WR775
WR87ES : TC-WR87ES
* Dolby noise reduction and HX Pro headroom extension manufactured
under license from Dolby Laboratories Licensing Corporation. HX Pro
originated by Bang & Olufsen.
"DOLBY", the double-D symbol OO and "HX PRO" are trademarks of Dolby
Laboratories Licensing Corporation.
STEREO CASSETTE DECK
SONY.