DOWNLOAD Sony KF-50XBR800 / KF-60XBR800 Service Manual ↓ Size: 10.86 MB | Pages: 127 in PDF or view online for FREE

Model
KF-50XBR800 KF-60XBR800
Pages
127
Size
10.86 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kf-50xbr800-kf-60xbr800.pdf
Date

Sony KF-50XBR800 / KF-60XBR800 Service Manual ▷ View online

CHASSIS
SERVICE MANUAL
MODEL
COMMANDER
DEST. CHASSIS NO.
––––––
 ––––––––––––
––––– –––––––––––
MODEL
COMMANDER
DEST. CHASSIS NO.
––––––
 ––––––––––––
––––– –––––––––––
LA-1A
KF-50XBR800
RM-Y912
US
KF-50XBR800
RM-Y912
Canadian
KF-60XBR800
RM-Y912
US
KF-60XBR800
RM-Y912
Canadian
LCD PROJECTION TV
RM-Y912
RM-Y912
KF-50XBR800/KF-60XBR800
– 2 –
KF-50XBR800/60XBR800
K
RM-Y912            RM-Y912
SPECIFICATIONS
Projection System
3 LCD Panels, 1 lens projection system
LCD Panel
1.35 inch TFT LCD panel Approx. 3.15 million dots (1,049,088 pixels)
Projection Lens
High Performance, large diameter hybrid lens F2.4
Antenna
75 ohm external terminal for VHF/UHF
Lamp
UHP lamp, 100W
XL-2000U
Television System
NTSC, American TV Standard
Screen Size (measured diagonally)
KF-50XBR800: 50 inches, KF-60XBR800: 60 inches
Channel Coverage
          VHF
2-13
          UHF
14-69
          CATV
1-125
Power Requirements
120V, 60 Hz
Number of Inputs/Outputs
          DVI-HDTV 1 terminal
3.3 V T.M.D.S., 50 ohms
The DVI-HDTV input terminal is compliant with the EIA-861 standard and is not intended for use
with personal computers.
          Video (IN)
4
1 Vp-p, 75 ohms unbalanced, sync negative
          S Video (IN)
3
Y: 1 Vp-p, 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
          Audio (IN)
6
500 mVrms (100% modulation)
Impedance: 47 kiloohms
          AUDIO (VAR/FIX)
1
500 mVrms at the maximum volume setting (Variable)
500 mVrms (Fixed)
Impedance (output): 2 kiloohms
          MONITOR OUT
1
 Video: 1 Vp-p 75 ohms unbalanced, Sync negative
Audio: 500 mVrms (100% modulation)
Impedance (output): 1 kiloohms
          CONTROL S (IN/OUT)
1
minijacks
          Component Video Input
2 (Y, PB , PR) Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative
PB: 0.7 Vp-p, 75 ohms
PR: 0.7 Vp-p, 75 ohms
          RF Inputs
2
          Converter
1
Speaker Output
15 W 
× 2
Dimensions (W 
× H × D)
KF-50XBR800: 1,376 
× 964 × 415 mm (54 
1
/
4
 
× 38 × 16 
3
/
8
 inches)
KF-60XBR800: 1,618 
× 1,103 × 542 mm (63 
3
/
4
 
× 43 
1
/
2
 
× 21 
3
/
8
 inches)
Mass
KF-50XBR800: 50 kg (110 lb 4 oz), KF-60XBR800: 66 kg (145 lb 8 oz)
Power Consumption
          In Use
220 W
          In Standby
Under 1 W
Supplied Accessories
          Remote Control
RM-Y912
          AAA Batteries
2 supplied for remote control
          Cleaning Cloth
1
          Hex key wrench
1
          Brackets with screws
2
Optional Accessories
– 3 –
KF-50XBR800/60XBR800
K
RM-Y912            RM-Y912
          TV Stand
SU-GW1
          Lamp
XL-2000U
          AV Cable
VMC-810/820/830 HG
          Audio Cable
RKC-515HG
          Control S Cable
RK-G69HG
          Component Video Cable
VMC-10/30 HG
          AV Receiver
STR-V555ES or equivalent
          Memory Stick media
8MB (MSA-8A), 16MB (MSA-16A), 32MB (MSA-32A), 64MB (MSA-64A),
128MB (MSA-128A)
                                                Design and specifications are subject to change without notice.
– 4 –
KF-50XBR800/60XBR800
K
RM-Y912            RM-Y912
SAFETY CHECK-OUT
( US model only )
After correcting the original service problem, perfom the follow-
ing safety checks before releasing the set to the customer:
l.
Check the area of your repair for unsoldered or poorly-sol-
dered connections. Check the entire board surface for solder
splashes and bridges.
2. Check the interboard wiring to ensure that no wires are
“pinched” or contact 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 tran-
sistors, that were installed during a previous repair. Point them
out to the customer and recommend their replacement.
5. Look for parts which, through functioning, show obvious
signs of deterioration. Point them out to the customer and
recom mend 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 condition of the monopole 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.
8. 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.
9. Check the antenna temminals, 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 0.5mA (500 microampers) . Leak-
age 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
usc 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 0.75V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are
examples of a passive VOM that is suitable. NearIy all bat-
tery 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 re-
taining 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-l00 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 Fig. B)
To Exposed Metal
Parts on Set
AC
voltmeter
(0.75V)
1.5k 
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
1.5 µ F
Fig. B.  Checking for earth ground.
Trouble Light
AC Outlet Box
Ohmmeter
Cold-water Pipe
Page of 127
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Sony KF-50XBR800 / KF-60XBR800 Service Manual ▷ Download

  • DOWNLOAD Sony KF-50XBR800 / KF-60XBR800 Service Manual ↓ Size: 10.86 MB | Pages: 127 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KF-50XBR800 / KF-60XBR800 in PDF for free, which will help you to disassemble, recover, fix and repair Sony KF-50XBR800 / KF-60XBR800 TV. Information contained in Sony KF-50XBR800 / KF-60XBR800 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.