TRINITRON® COLOR TELEVISION
SERVICE MANUAL
BA-5 CHASSIS
MODEL NAME
REMOTE COMMANDER
DESTINATION
CHASSIS NO.
KV-13FM13
RM-Y172
C
anada
SCC-S41N
-A
KV-13FM14
RM-Y172
Canada
SCC-S41P
-A
KV-13FM13
RM-Y172
9-965-909-01
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KV-13FM13 / 13FM14
TABLE OF CONTENTS
SpeciÞcations.......................................................................................................................................3
Warnings and Cautions........................................................................................................................4
Safety Check-out .................................................................................................................................5
Self-Diagnostic Function......................................................................................................................6
1. Disassembly
1-1. Rear Cover Removal ....................................................................................................................9
1-2. Chassis Assembly Removal .........................................................................................................9
1-3. Service Position............................................................................................................................9
1-4. Picture Tube Removal ..................................................................................................................10
Anode Cap Removal Procedure ..........................................................................................................10
2. Set-up Adjustments
2-1. Beam Landing ..............................................................................................................................11
2-2. Convergence ................................................................................................................................12
2-3. Focus............................................................................................................................................13
2-4. Screen (G2) ..................................................................................................................................14
2-5. Method of Setting the Service Adjustment Mode..........................................................................14
2-6. White Balance Adjustments..........................................................................................................14
3. Safety Related Adjustments
3-1. Hold Down ConÞrmation and Readjustments...............................................................................15
3-2. B+ Voltage ConÞrmation and Adjustment.....................................................................................15
4. Circuit Adjustments
4-1. Setting the Service Adjustment Mode...........................................................................................17
4-2. Memory Write ConÞrmation Method.............................................................................................17
4-3. Remote Adjustment Buttons and Indicators .................................................................................17
4-4. MB Board Adjustments Lists.........................................................................................................20
5. Diagrams
5-1. Circuit Board Location ..................................................................................................................22
5-2. Printed Wiring Boards and Schematic Diagrams .........................................................................22
5-3. Block Diagram ..............................................................................................................................23
A Board .....................................................................................................................................28
MB Board ...................................................................................................................................29
CB Board ...................................................................................................................................33
HC Board ...................................................................................................................................35
HD Board ...................................................................................................................................36
5-4. Semiconductors............................................................................................................................37
6. Exploded Views
6-1. Chassis.........................................................................................................................................38
7. Electrical Parts List ......................................................................................................................................39
SECTION TITLE
PAGE
-- 3 --
KV-13FM13 / 13FM14
Power Requirements
120V, 60Hz
Number of Inputs/Outputs
Video 1)
2
Audio 2)
2
Headphone Out
1
Speaker Output
3W
1)
(1 Vp-p 75 ohms unbalanced, sync negative)
2)
(500 Vrms (100% modulation), Impedance: 47 kilohms)
Power Consumption
In Use (Max)
80W
In Standby
1W
Dimensions (W x H x D)
450 x 338 x438 mm
17 3/4 x 13 3/8 x 17 1/4 in
Mass
12 kg
26 lbs 7 oz.
Television system
American TV standard, NTSC
Channel coverage
VHF: 2-13/ VHF: 14-69/ CATV: 1-125
Picture tube
Trinitron
® tube
Visible screen size
13" inch picture measured diagonally
Actual screen size
14" inch measured diagonally
Antenna
75 ohm external terminal for VHF/UHF
Supplied Accessories
Remote Commander RM-Y172
Size AA (R6) batteries (2)
SPECIFICATIONS
Design and speciÞcations are subject to change without notice.
-- 4 --
KV-13FM13 / 13FM14
WARNINGS AND CAUTIONS
CAUTION
Short circuit the anode of the picture tube and the anode cap to the metal chassis, crt shield, or carbon painted on the crt, after
removing the anode.
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of
this receiver is directly connected to the ac power line.
! SAFETY-RELATED COMPONENT WARNING!!
Components identiÞed by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for
safe operation. Replace these components with sony parts whose part numbers appear as shown in this manual or in supplements
published by sony. Circuit adjustments that are critical for safe operation are identiÞed in this manual. Follow these procedures
whenever critical components are replaced or improper operation is suspected.
ATTENTION!!
Apres avoir deconnecte le cap de l'anode, court-circuiter l'anode du tube cathodique et celui de l'anode du cap au chassis metallique
de l'appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.
AÞn d'eviter tout risque d'electrocution provenant d'un chássis sous tension, un transformateur d'isolement doit etre utilisé lors de tout
dépannage. Le chássis de ce récepteur est directement raccordé à l'alimentation du secteur.
! ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identiÞes par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de
pieces sont d'une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants sony dont
le numero de piece est indique dans le present manuel ou dans des supplements publies par sony. Les reglages de circuit dont
l'importance est critique pour la securite du fonctionnement sont identiÞes dans le present manuel. Suivre ces procedures lors de
chaque remplacement de composants critiques, ou lorsqu'un mauvais fonctionnement suspecte.
-- 5 --
KV-13FM13 / 13FM14
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly soldered
connections. Check the entire board surface for solder splashes and
bridges.
2. Check the interboard wiring to ensure that no wires are "pinched" or
touching high-wattage resistors.
3. 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.
4. Look for unauthorized replacement parts, particularly transistors,
that were installed during a previous repair. Point them out to the
customer and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs of
deterioration. Point them out to the customer and recommend their
replacement.
6. Check the line cords for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
7. Check the B+ and HV to see if they are speciÞed values. Make sure
your instruments are accurate; be suspicious of your HV meter if sets
always have low HV.
8. 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 microamperes). 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
instructions.
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" indication is 0.75 V,
so analog meters must have an accurate low voltage scale. The
Simpson's 250 and Sanwa SH-63TRD are examples of passive
VOMs that are suitable. Nearly all battery-operated digital multimeters
that have a 2 VAC range are suitable (see Figure A).
How to Find a Good Earth Ground
A cold-water pipe is a 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 cold-water pipe with an
ohmmeter. The reading should be zero ohms.
If a cold-water pipe is not accessible, connect a 60- to 100-watt 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 on the
line; the lamp should light at normal brilliance if the screw is at ground
potential (see Figure B).
Figure A. Using an AC voltmeter to check AC leakage.
Figure B. Checking for earth ground.