Specifications - Yamaha CT-7000 Service Manual

CONTENTS

SPECIFICATIONS

EXTERNAL VIEWS
FRONT PANEL ..................... .
REAR PANEL (U .S . & CANADIAN MODELS)
REAR PANEL (EUROPEAN MODEL)
INTERNAL VIEWS
TOP VIEW ...... .
BOTTOM VIEW ... .
CIRCUIT DESCRIPTION ..
PARTIAL DISASSEMBLY .
DIAL MECHANISM ..... .
MEASUREMENT AND ADJUSTMENT
PRINTED CIRCUIT BOARD ........
BLOCK DIAGRAM .................................
OVERALL SCHEMATIC DIAGRAM.. . .
PARTIAL CHANGES MADE ACCORDING TO DESTINATION
PARTS LIST .................................
SPECIFICATIONS
Tuning Range
88-108MHz
Sensitivity (mono)
Normal: better than 2.5;LV
IHF
Wide: better than 3.2/lV
DIN (40kHz Dev.; S/N 26dB)
Normal: better than 1.6/lV
Wide: better than 2.5/lV
Sensitivity (stereo)
DIN (40kHz Dev.; S/N 46dBI
50/lV
Image
Frequency Rejection
Over 120dB
Rejection Over 120dB
IF
Spurious Response Rejection
Over 120dB
AM Rejection
IHF Over 60dB
Capture Ratio
1 mV Normal: better than 1.3dB
Wide: better than 1.0dB
1 OllV Normal: better than 2.0dB
Wide: better than 3.0dB
1 OOmV Normal: better than 1.0dB
Wide: better than 1.0dB
Selectivity
IHF (75kHz Dev.)
Normal: over 80dB
Wide: over 18dB
DIN (±300Hz; 40kHz Dev.) ±500kHz
Normal: over 65dB
Wide: over 1 OdB
Normal: over 90dB
Wide: over 35dB
Signal/Noise Ratio (mono)
IHF (75kHz Dev.)
Over 78dB
DIN (40kHz Dev.)
Over 72dB
Signal/Noise Ratio (stereo)
IHF (75kHz Dev.)
Over 75dB
DIN (40kHz Dev.)
Over 69dB
.
. . . . . . . . . . ....
.
Total Harmonic Distortion
(antenna level: 1 mV)
Mono
IHF (400Hz; 75kHz Dev.)
Normal: less than 0.08%
Wide: less than 0.08%
DIN (1kHz; 40kHz Dev.)
Normal: less than 0.08%
Wide: less than 0.08%
IHF (50-1 O,OOOHz; 75kHz Dev.)
Normal: less than 0.3%
Wide: less than 0.15%
DIN (50-10,000Hz; 40kHz Dev.)
Normal: less than 0.3%
Wide: less than 0.15%
Stereo
IHF (400Hz; 75kHz Dev.)
Normal: less than 0.08%
Wide: less than 0.08%
DIN (1kHz; 40kHz Dev.)
Normal: less than 0.08%
Wide: less than 0.08%
IHF (50-10,000Hz; 75kHz Dev. )
Normal: less than 0.5%
Wide: less than 0.2%
DIN (50-10,000Hz; 40kHz Dev.)
Normal: less than 0.5%
Wide: less than 0.2%
Stereo Separation
IHF (400Hz; 75kHz Dev . )
Normal wide: 50dB
&
DIN (1kHz; 40kHz Dev.)
Normal wide: 50d8
&
IHF (50-10,000Hz; 75kHz Dev.)
Normal: 35dB
Wide: 40dB
DIN (50-10,000Hz; 40kHz Dev.)
Normal: 35dB
Wide: 40dB
Frequency Response
50-10,000Hz
±0.3dB
30-15,000Hz
+0.5dB, -1.0dB
.
.
Sub-Carrier Suppression
Over 70dB
Muting Override Signal Level
3-30!-lV
Stereo Level 3-30/lV
Auto Blend Level
1: 1 OO;.t V, II: 1 m V
GENERAL
1 08
Transistors
12 (dual-gate MOS: 3,
FETs
junction:
33
Diodes
9
Zener Diodes
7
ICs
Two-Element Ceramic Filter
Four-Element Ceramic Filter
Two-Element Ceramic Block Filters
Headphone Output
4.16n.
Fixed Output
775mV
Variable Output
2V- 70mV variablao
Antenna Input Impedance
300n. (balanc ed),
75n. (unba lanced)
Power Source
110, 117, 130, 2 20, 240V ,
50/60H z
Power Consumption
23W
1 (unswitched, 500W)
AC Outlet
American walnut
Cabinet
Hairline brushed aluminum
Front Panel
(WxHxDI
Dimensions
436
(17.2"
13kg (28.6 lbs .)
Weight
CT 7 000
-
2
2
2
4
4
5
14
17
18
22
26
27
29
31
9)
1
2
( i l i u m . off: 1 3W )
1 4 4 352mm
x
x
13.9" )
5.7"
X X
1