Sony tc wa 7es service manual

Page 1

TC-WA7ESMR565MR665S

SERVICE MANUAL

Photo : Tc-WR6658

US Model
TC-WA7ES/WR565/WR665S
Canadian Model
AEP Model

UK Model

E Model
Austral/an Model
Chinese Model

TC-WH565/WFI665S

' Dolby noise reduction and HX Pro headroom extension
manufactured under license from Dolby Laboratories Licensing

Model Name Using Similar Mechanism

TC-WR545/INR741

Corporation. HX Pro originated by Bang 6: Olufsen. TC-WR565/WR665S I
. TCM-190RA14CL
"DOLBY", the double-D symbol on and "HX PRO" are trademarks Tape Transnort Machanlsm DECK A Tc.wA7Es ;
of Dolby Laboratories Licensing Corporation» Type TCM-190RA12CL
DECK B TCM-190RB1ZCL
SPECIFICATIONS

System
Recording system
4-traok 2-channei stereo
Fast-winding time (approx)
90 see. (with Sony 060 cassette)
Bias AC bias
Singnal-to-noise ratio (at peak level and weighted with Dolby NR off)
Type I tape, Sony Type I (NORMAL) : 55 dB
Type H tape, Sony Type 11 (HIGH) : 57 dB
Type IV tape, Sony Type IV (METAL) : 58 dB
S/N ratio improvement (approximate values)
With Dolby B NR on : SdB at lkl-lz, lOdB at SkHZ
With Dolby C NR on : 15dB at SOOHz, ZOdB at lkHz
With Dolby S NR on (TC-WA7ES/WR6655 only) :
IOdB at 100Hz, 24dB at lkHz
Harmonic distortion
0.4% (with Type I tape, Sony Type I (NORMAL):
160 nWb/m 315 Hz, 3rd H.D.)
1.8% (with Type IV tape, Sony Type IV (METAL) :
250 nWb/m 315 Hz, 3rd HD.)
Frequency response (Dolby NR off)
Type I tape, Sony Type I (NORMAL) :
30-15,000l-lz ( i 3dB, IEC)
Type II tape, Sony Type ll (HIGH):
30«17,000Hz ( i 3dB, lEC)
Type IV tape, Sony Type IV (METAL) :
30-18,000l-lz( i 32:18, lEC)
30-13,000Hz( i 3dB, - 4dB recording)

Wow and flutter
TC-WA7BS/WR6655 : t 0.13% W. Peak (lEC)
0.07% W. RMS (NAB)
i 0.18% w, Peak (DIN)
TC-WR565 : i 0.14% W. Peak (lEC)
0.08% W. RMS (NAB)
: 0.19% W. Peak (DIN)
Variable pitch range (approx)
- 30 to +30%

Inputs
Line inputs (phone jacks)
Sensitivity : 0.16V
Input inpedance : 47 kilohms

Outputs
Line outputs (phono jacks)
Rated output level : 0.5V at a load impeadance of
47 kilohms
Load impedance : Over 10 kilohms
Headphones (stereo phone jack)
Output level : ImW at a load impedance of 32 ohms

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