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Yamaha T-80 - To Service Personal; Leakage Current Measurement; Specifications; FM Section Specifications

Yamaha T-80
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WTO
SERVICE
PERSONAL
1.
Critical Compnentt Information.
Components having special characteristics are marked
A
and must be replaced with parts having specifications
equal to those originally installed.
2.
Leakage Current Measurement
(For
120V
Model Only).
When service has been completed,
it
is
imperative that you verify that all exposed conductive surfaces are properly
insulated from supply circuits.
EQUIPMENT AC LEAKAGE TESTER
@
Meter impedance should be equivalent to
1500
UNDER TEST
or
EQUIVALENT
ohm shunted by
0.1
5pF.
@
Leakage current must not exceed 0.5mA.
B
Be sure to test for leakage with the
AC
plug in
WALL
both polarities.
OUTLET INSULATING TABLE
-
IISPECIFSCATIONS
FM
SECTION
Tuning Range
.............
87.6
-
108.OMHz
50 dB Quieting Sensitivity
............
Mono (DX) 1.6pV (15.3dBf)
.........
(NR ON) 1.2pV (12.8dBf)
Stereo (DX)
............
20pV (37.2dBf)
..........
(NR ON) 1OpV (3i.2dBf)
hble Sensitivity
(IHF Mono) 75a
........
.0.9~V (10.3dBf)
Usable Sensitivity (DIN)
............
Mono (SIN 26dB).
.l
.OpV (E)
............
Stereo (SIN 46dB) .3.OpV (E)
I-e Rarpoma Ratio
...............
9548
................
IF
Rslponro
Ratio
.l
15dB
............
Spurious R-ms Ratio.
.l
l
OdB
...............
AM Suppression Ratio 70dB
Capture Ratio
Local
.......................
1.2dB
Alternate Channel Selectivity
DX
.................
.85dB (U,C,R,A)
Selectivity (two Signak)(DIN 40kHz Dev.)
......................
DX 70dB (E)
Adjacent Channel Selsctivity
DX
..................
20dB (U,C,R,A)
Signal to Noise Ratio (IHF)
................
Mono .94dB (U,C,R,A)
...............
Stereo :86dB (U,C,R,A)
Signal to Nobe Ratio
...........
(DIN-Weighted) Mono 88dB (E)
..........
Stereo. 80dB (E)
Harmonic Distortion
.
Mono 100Hz. .DX0.03%, Local 0.02% (U,C,R,A)
..
1 kHz .DX0.15%, Local 0,03%(U,C,R,A)
6kHz
..
.DX0.4%, Local 0.06% (U,C,R,A)
Stereo lM3Hz
.
.DX0.5%, Local 0.04% (U,C,R,A)
1 kHz
..
.DXO.5%, Local 0.03% (U,C,R,A)
6kHz.
.
.DX0.8%, Local 0.07% IU,C,R,AI
(4OkHz Dev)
Stereo 100Hz
......
DX 0.5%, Local 0.05% (E)
l
kHz
.......
DX 0.5%. Local 0.04% (El
.....
6.3kHz.
OX 0.5%, Local 0.08% (E)
Strreo
Separation (IkHz) (Local)
mkHz.
a........
.65dB
1 kHz.
..........
.65dB (U,C,R,A)
60dB
(E)
10kHz
...........
50dB (U,C,R,A)
40dB
(E)
F-affiy
Raporar
0+O.~d9
.
50Hz to lOkHz
...............
-0.3
Subcarrier Product Ratio
.............
65dB
Metat Saturation Level
.........
-3mV (75dBf)
AM
SECTION
Tuning Range
........
.510
-
1620kHz (U,C,R)
513
-
1620kHz (E.A,R)
Usable Sansitivity
.................
,250pV
Selectivity..
....................
30dB
Signal to
Nob Ratio.
...............
55dB
Image Rwnse Ratio
...............
40dB
Spurious Response Ratio.
.............
50dB
Distortion
(400Hz).
.................
0.2%
AUDIO SECTION
Output' Levelllmpedance (HIGH)
FM (100% MOD,
1kHz)
....
1V/2ka (U,C,R,A)
1.6VI2kS2
(E)
.........
FM (30% MOD, 400Hz) 0.3VIZkn
.....
REC CAL (50% MOD, 333Hz) 0.5V12kn
.,
Output Level/lmpedanee (LOW)
i
FM (100% MOD, IkHz)
.
.
0.5VI2.5ka (U,C,R,A)
0.8V12.5kn
(E)
AM (100% MOD,
l
kHzl
.......
0.15V12.5kSZ
REC CAL (50% MOD, 333Hz)
...
0.25VI2.5kn
GENERAL
Power Supply
........
U.S.
&
Canadian Models
120V, 60Hz
.........
General Model.
l1
011 20V, 50/60Hz
220/240V, 50/60Hz
............
European Model. 220V, 50Hz
+,.K
,
240V, 50Hz
............
Australian Model 240V. 50Hz
Power Cbnspmption-
U.S.
&
Canadian Models
.............
13W
..................
General Model. 13W
.
.................
European Model. 13W
.................
Australian Model 12W
Dimemion (WX~D)
.
435
X
93.5
X
357rnm (U,C,R,A)
(1 7-7 18"
X
3-1
132"
X
14-1 116")
435
X
93.7
X
357mm
(E)
(19-118"
X
3-1/32''
X
14-1/16")
Weight-.
........................
5kg
(Illbs)
Specifications subject to change without notice
MARKET
U: U.S.-Model
C: ~anadbn Model
R: General Model
,>.
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A: Australian Model
J: Japanese Model
-
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