Sony STR-K7000 Service Manual page 2

STR-K7000
FM tuner section
Tuning range 87.5 – 108.0 MHz
Antenna FM wire antenna
Antenna terminals 75 ohms, unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
With 10-kHz tuning scale: 530 – 1,710 kHz
With 9-kHz tuning scale: 531 – 1,710 kHz
Antenna Loop antenna
Intermediate frequency 450 kHz
3) You can change the AM tuning scale to 9 kHz or 10 kHz.
After tuning in any AM station, turn off the receiver. While
holding down TUNING MODE, press ?/1. All preset
stations will be erased when you change the tuning scale.
To reset the scale to 10 kHz (or 9 kHz), repeat the
procedure.
Video section
Inputs/Outputs
Video: 1 Vp-p, 75 ohms
COMPONENT VIDEO: Y: 1 Vp-p, 75 ohms
P /C /B-Y: 0.7 Vp-p,
B B
75 ohms
P /C /R-Y: 0.7 Vp-p,
R R
75 ohms
80 MHz HD Pass Through
General
Power requirements
Area code Power requirements
US 120 V AC, 60 Hz
Power consumption
Area code Power consumption
US 170 W
Power consumption (during standby mode)
0.2 W
Dimensions (w/h/d) (Approx.)
430 × 157.5 × 316 mm
(16 × 6
7/8
inches) including
projecting parts and
controls
Mass (Approx.) 8.0 kg (17 lb 11 oz)
Design and specifications are subject to change
without notice.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
2
3)
3)
× 12
2/8 4/8
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, "metallized" knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The "limit" indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able. (See Fig. A)
To Exposed Metal
Parts on Set
0.15 µF
Fig. A. Using an AC voltmeter to check AC leakage.
AC
1.5 kΩ voltmeter
(0.75 V)
Earth Ground