Sony KDF-37H1000 Service Manual ▷ View online
KDF-37H1000
KDF-37H1000
5
Television system
American TV standard, NTSC
ATSC Compliant 8VSB, ATSC (8VSB terrestrial)
ANSI/SCTE 07 2000, QAM on cable
ATSC Compliant 8VSB, ATSC (8VSB terrestrial)
ANSI/SCTE 07 2000, QAM on cable
Channel coverage
Terrestrial 2-69/ Cable TV: 1-125 (analog)
Terrestrial 2-69/ Cable TV: 1-135 (digital)
Terrestrial 2-69/ Cable TV: 1-135 (digital)
Screen Size (measured diagonally)
37 inches
Antenna
75-ohm external antenna terminal for VHF/UHF
Projection System
3 LCD Panels, 1 lens projection system
LCD Panel System
LCD (Liquid Crystal Display) Panel
LCD Panel
0.73 inch TFT LCD panel (1,280 x 720 pixels)
Projection Lens
High Performance, large diameter hybrid lens F2.4
Lamp
100W, XL-2500 Ultra High Pressure Lamp
Supplied Accessories
Remote Commander RM-YD014
Two Size AA (R6) Batteries
Operating Instructions
Quick Setup Guide
Warranty Card
Online Registration Card
Two Size AA (R6) Batteries
Operating Instructions
Quick Setup Guide
Warranty Card
Online Registration Card
Optional Accessories
Connecting Cables
Lamp
XL-2500 Ultra High Pressure Lamp
Lamp
XL-2500 Ultra High Pressure Lamp
KDF-37H1000
KDF-37H1000
6
WARNINGS AND CAUTIONS
CAUTION
These servicing instructions are for use by qualifi ed service personnel only. To reduce the risk of electric shock, do not perform any servicing other
than that contained in the operating instructions unless you are qualifi ed to do so.
than that contained in the operating instructions unless you are qualifi ed to do so.
CARRYING THE TV
Carrying the TV requires at least two people. Do not hold
by the pedestal or the front panel of the TV. Doing so may
cause these parts to break off.
by the pedestal or the front panel of the TV. Doing so may
cause these parts to break off.
When moving the TV, place one hand in the hole on the
lower portion of the TV while grasping the top with the other
hand, as shown in the illustration below.
lower portion of the TV while grasping the top with the other
hand, as shown in the illustration below.
If you have connected cables and cords, be sure to
unplug them before moving the TV.
unplug them before moving the TV.
Do not grasp the
pedestal or the front
panel of the TV.
pedestal or the front
panel of the TV.
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.
directly connected to the AC power line.
!
SAFETY-RELATED COMPONENT WARNING!!
Components identifi ed 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 identifi ed in this manual. Follow these procedures whenever critical components are replaced or improper operation is
suspected.
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 identifi ed in this manual. Follow these procedures whenever critical components are replaced or improper operation is
suspected.
ATTENTION!!
Ces instructions de service sont à l’usage du personnel de service qualifi é seulement. Pour prévenir le risque de choc électrique, ne pas faire
l’entretien autre que celui contenu dans le Mode d’emploi à moins que vous soyez qualifi é faire ainsi.
l’entretien autre que celui contenu dans le Mode d’emploi à moins que vous soyez qualifi é faire ainsi.
TRANSPORTER LE TÉLÉVISEUR
Le transport du téléviseur doit être effectué par au
moins deux personnes. Ne tenez pas le téléviseur
par son socle ni par le panneau avant. Ces pièces
risqueraient de se détacher.
moins deux personnes. Ne tenez pas le téléviseur
par son socle ni par le panneau avant. Ces pièces
risqueraient de se détacher.
Lorsque vous déplacez le téléviseur, placez une
main dans l’orifice de la partie inférieure du
téléviseur tout en tenant la partie supérieure de
l’autre main, comme illustré ci-dessous.
main dans l’orifice de la partie inférieure du
téléviseur tout en tenant la partie supérieure de
l’autre main, comme illustré ci-dessous.
Si vous avez branché les câbles et les cordons
d’alimentation, veillez à les débrancher avant de
déplacer le téléviseur.
d’alimentation, veillez à les débrancher avant de
déplacer le téléviseur.
Ne tenez pas le
téléviseur par son socle
ni par le panneau avant.
téléviseur par son socle
ni par le panneau avant.
Afi n 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.
chássis de ce récepteur est directement raccordé à l’alimentation du secteur.
!
ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifi es 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 identifi es dans le present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu’un mauvais
fonctionnement suspecte.
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 identifi es dans le present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu’un mauvais
fonctionnement suspecte.
KDF-37H1000
KDF-37H1000
7
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
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.
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.
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.
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.
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 specifi ed values. Make sure
your instruments are accurate; be suspicious of your HV meter if sets
always have low HV.
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.
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.
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.
instructions.
2. A battery-operated AC milliampmeter. 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).
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.
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).
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).
To Exposed Metal
Parts on Set
Parts on Set
0.15 μF
Earth Ground
AC
Voltmeter
(0.75V)
Voltmeter
(0.75V)
Trouble Light
AC Outlet Box
Ohmmeter
Cold-water Pipe
Figure A. Using an AC voltmeter to check AC leakage.
Figure B. Checking for earth ground.
KDF-37H1000
KDF-37H1000
8
SELF-DIAGNOSTIC FUNCTION
Self Diagnosis
Supported model
The units in this manual contain a self-diagnostic function. If an error occurs, the POWER/STANDBY will automatically begin to fl ash. The number of
times the LED fl ashes translates to a probable source of the problem. A defi nition of the POWER/STANDBY fl ash indicators is listed in the instruction
manual for the user’s knowledge and reference. If an error symptom is diffi cult to reproduced use the Remote Commander to display the record that is
stored at the internal NVM to specify the cause of the failure.
times the LED fl ashes translates to a probable source of the problem. A defi nition of the POWER/STANDBY fl ash indicators is listed in the instruction
manual for the user’s knowledge and reference. If an error symptom is diffi cult to reproduced use the Remote Commander to display the record that is
stored at the internal NVM to specify the cause of the failure.
Diagnostic Test Indicators
When an error occurs, the POWER/STANDBY will fl ash a set number of times to indicate the possible cause of the problem. If there is more than
one error, the POWER/STANDBY will identify the fi rst of the problem areas. If the errors occur simultaneously, the one that corresponds to the fewest
fl ashes is identifi ed fi rst.
When an error occurs, the POWER/STANDBY will fl ash a set number of times to indicate the possible cause of the problem. If there is more than
one error, the POWER/STANDBY will identify the fi rst of the problem areas. If the errors occur simultaneously, the one that corresponds to the fewest
fl ashes is identifi ed fi rst.
Results for all of the following diagnostic items are displayed on screen. (No error has occurred if the screen displays a “0”.)
Number of times
LED indicator
flashes Diagnosis
Item
Probable
Cause
1 Lamp
Error
Lamp not seated properly
(Note: The lamp LED will flash red when
this error occurs, not the Power LED)
(Note: The lamp LED will flash red when
this error occurs, not the Power LED)
2
OVP
10.5V is high on B Board
3
LowB Error
10.5V is low on B Board
4
Not Used in this model
5
HV Detect
Ballast is not working
6
Lamp Cover/ Lamp Position
The Lamp cover is not closed securely.
7 Temp
Error
High
Temperature
or
sensor
connection
8
Audio Error
DC error on U Board
9
Fan Error
Fan is not working properly
DISPLAY OF POWER/STANDBY OR LAMP LED FLASH COUNT
TIMER
LAMP
POWER
TIMER
LAMP
POWER
Screen
Flashes red for all except Lamp error
Flashes red for Lamp error
- Example
Diagnosis
Number of times LED Flashes
3 times
Lamp Cover
6 times
LED ON : 0.3 sec
LED OFF : 0.3sec
LED OFF : 0.3sec
LED OFF
3.0sec
LED OFF
3.0sec
LowB Error
- 4 Flash is not used for self-diagnosis
☛
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