(Natural wood finish)
Television system American TV standards
Cable TV: 1
picture measured diagonally
picture tube measured
external antenna terminal
VIDEO and S VIDEO
S VIDEO IN (S terminal)
Y: 1 Vp-p, 75-ohms
C: 0.286 Vp-p (Burst signal),
Video (phono jacks): 1 Vp-p,
Audio (phono jacks): 500
Impedance: 47 kilohms
More than 408
Impedance: 5 kilohms
MODELS OF THE SAME SERIES
Audio Power: 5 watts/channel minimum continuous
power, 2 channels driven into 8 ohms from
to 20kHz with
or less THD, mea-
sured from auxiliary input to load
120 V AC,
5W Standby mode
758.0 x 100.0 x 635.0 mm
(29% x 39% x 25 in.)
88 6 kg
(195 Ibs 6 oz)
Remote commander RM-Y102 (1) with 2 size AA
(R6) EVEREADY batteries
UN mixer EAC-66
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAPTOTHE METAL CHASSIS, CRTSHIELD, OR CARBON
PAINTED ON THE CRT, AFTER REMOVING THE ANODE.
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BECAUSE
OF LIVE CHASSIS.
THE CHASSIS OF THIS RECEIVER IS DIRECTLY CONNECTED
TO THE AC POWER LINE.
COMPONENTS IDENTIFIED BY SHADING AND MARK
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.
L'ANODE DU TUBE CATHODIQUE ET
DE L'ANODE DU CAP AU CHASSIS
OU AU COUCHE DE
SUR LE TUBE
CATHODIQUE OU AU
DU TUBE CATHODIQUE.
TOUT RISQUE D'ELECTROCUTION PROVENANT
TENSION, UN TRANSFORMATEUR
LORS DETOUT DEPANNAGE.
ATTENTION AUX COMPOSANTS
PAR UNE TRAME ET PAR UNE
A SUR LES
DE PRINCIPE, LES VUES
DE PIECES CONT D'UNE
MANUEL OU DANS DES SUPPLEMENTS
DE CIRCUIT DONT
L'IMPORTANCE EST CRITIQUE POUR LA
(US Model only)
Aftercorrecting theoriginalserviceproblem, performthefollowing
safety checks before releasing the set to the customer:
Check the area of your repair for unsoldered or poorly-soldered
connections. Check the entire board surface for solder splashes
Check the interboard wiring
that no wires are "pinched"
Check that all control knobs, shields, covers, ground straps, and
mounting hardware have been replaced Be absolutely certain that
you have replaced all the insulators.
that were installed during a previous repair Point them out to the
customer and recommend their replacement
Look for parts which, though functioning, show obvious signs of
deterioration. Point them out to the customer and recommend
Check the line cord for cracks and abrasion. Recommend the
replacement of any such line cord to the customer
Check the condition of the
antenna (if any)
Make sure the end is not broken off, and has the plastic cap on it.
Point out the danger of impalement on a broken antenna to the
customer, and recommend the antenna's replacement
Check the B+ and HV to see they are at the values specified. Make
sure your instruments are accurate, be suspicious of your HV
meter if sets always have low HV
Check the antenna terminals, metal trim,
screws, and all other exposed metal parts for AC leakage Check
leakage as described below
To Exposed Metal
Parts on Set
Fig A. Using an AC voltmeter to check AC leakage
Fig B Checking for earth ground.
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
current can be measured by any one of three methods.
A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A Follow the manufacturers' instructions to use these
A battery-operated AC
The Data Precision 245
digital multimeter is suitable for this job
Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter The "limit" indication is 0.75
V, so analog meters must have an accurate low-voltage scale. The
Simpson 2.50 and Sanwa SH-63Trd are examples of a passive
VOM that is suitable. Nearly all battery operated digital multimeters
that have a 2V AC range are suitable (See Fig. A)
HOW TO FIND A GOOD EARTH GROUND
A cold-water pipe is guaranteed earth ground; the cover-plate
retaining screw on most AC outlet boxes is also at earth ground If the
retaining screw is to be used as your earth-ground, verify that it is at
ground by measuring the resistance between it and a coldwater pipe
with an ohmmeter. The reading should be zero ohms. If a cold-water
pipe is not accessible, connect a 60-100 watts trouble light (not a neon
lamp) between the hot side of the receptacle and the retaining screw.
Try both slots, if necessary, to locate the hot side of the line, the lamp
should light at normal brilliance if the screw is at ground potential. (See
Locating the Controls
Antenna/Cable ...... 7
Turning the Cable Mode On or Off
1-4. Presetting TV Channels
1-5. Using Picture-in-Picture .
1.6. Using the Pre-Programmed Remote Commander
l-7. Setting the CURRENT TIME .......
l-8. Using the Timer-activated Functions-GUIDE
l-9. Using CHANNEL CAPTION
l-10. Enjoying Other Useful Features
Rear Plate Removal
2-2. Service Position
Board Removal ....................
2-4. Antenna Terminal Board Removal
B, A and E Boards Removal ...............
How to Improve Interlace
B, A and E Boards Service Position ............
2-8. Picture Tube Removal
3. SET-UP ADJUSTMENTS
Focus Adjustment . . . . . . . . . .
3-4. White Balance
. . . .
4. SAFETY RELATED ADJUSTMENTS
. . . . . . . 27
5. CIRCUIT ADJUSTMENTS
A Board Adjustments .
. . . . . .
5-2 B Board Adjustments
5-3. D Board Adjustments
E Board Adjustments . .
6-1. Block Diagram
. . . . . . . .
6-2. Circuit Boards Location
. . .
Printed Wiring Boards and Schematic Diagrams
6-4. Semiconductors .
. . . . . . . . . . . .
. . . . .
7. EXPLODED VIEWS
7-l. Cover . . . . .
. . . . . . . . .
. . . .
7-2. Chassis .
. . . .
. . . . . .
. . .
8. ELECTRICAL PARTS LIST
1-1. LOCATING THE CONTROLS
A/V WINDOW displays
SLEEP, MUTING displays
Bar display for volume,
CURRENT TIME display
CHANNEL CAPTION display
MTS mode (MAIN, SAP or
CHANNEL +I- buttons*