MODEL NAME : KE-50XBR900
PARTS No. : 9-978-756-02
* Blue characters are linking.
Addition of Disassembly, Adjustments, Troubleshooting and Diagrams
(P.1-1, P.2-1, P.3-1, P.4-1)
Revised all pages for Exploded Views (P.5-1)
FLAT PANEL COLOR TV
Plasma Display panel
1365 pixels (horizontal)
× 768 pixels (vertical)
75 ohm external terminal for VHF/UHF
NTSC, American TV Standard
120V, 60 Hz
1 terminal, 3.3V 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.
3 total (1 on front panel)
1 Vp-p, 75 ohms unbalanced, sync negative
S Video (IN)
(1 on front panel)
Y: 1 Vp-p, 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
(1 on front panel)
500 mVrms (100% modulation)
Impedance: 47 kilohm
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
CONTROL S (OUT)
Variable/Fixed Audio (OUT)
More than 408 m Vrms at the maximum volume
More than 408 mVrms (Fixed)
Impedance (output): 2 kilohms
Monitor/Fixed Audio (OUT)
Sub woofer (OUT)
AAA (LR03) Batteries
2 supplied for remote control
Screen Size (measured diagonally)
× H × D)
× 856 × 108 mm
× 33 3/4 × 4 3/8 in)
× 105 × 360 mm
× 4 1/4 × 14 1/4 in)
Design and specifications are subject to change without notice.
PDM-5000: 53kg (114 lbs)
Media receiver unit
MBT-XBR900: 7.5kg (16 lbs)
PDM-5000: 540 W
Media receiver unit
MBT-XBR900: 36 W
Under 1.5 W
AC power code (2)
Display interface cable (1)
Antenna cable (1)
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 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" indication is 0.75 V, so
analog meters must have an accurate low-voltage scale. The Simpson 250
and Sanwa SH-63Trd are examples of a passive VOMs that are suitable.
Nearly all battery operated digital multimeters that have a 2 V AC range
are suitable. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
To Exposed Metal
Parts on Set
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
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 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
6. Check the line cords for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
7. Check the connector shell, metal trim, "metallized" knobs, screws, and
all other exposed metal parts for AC Leakage. Check leakage as de-
ATTENTION AUX COMPOSANTS RELATIFS À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET UNE
! SONT CRITIQUES POUR LA SÉCURITÉ. NE LES
REMPLACER QUE PAR UNE PIÈCE PORTANT LE NUMÉRO
SPECIFIÉ. LES RÉGLAGES DE CIRCUIT DONT L'IMPORTANCE EST
CRITIQUE POUR LA SÉCURITÉ DU FONCTIONNEMENT SONT
IDENTIFIÉS DANS LE PRÉSENT MANUEL.
PROCÉDURES LORS DE CHAQUE REMPLACEMENT DE
FONCTIONNEMENT EST SUSPECTÉ.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED 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 ADJUST-
MENTS THAT ARE CRITICAL FOR SAFE OPERATION ARE
IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES
WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IM-
PROPER OPERATION IS SUSPECTED.