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Ver.
DATA
CONTENTS
1.0
2003.12
New
1.1
2005. 8
Addition of WARNING AND CAUTIONS (P.3)
MODEL NAME : KDL32XBR950/42XBR950
SERVICE MANUAL
PARTS No. : 9-878-206-02
MODIFICATION HISTORY
* Blue characters are linking.


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SERVICE MANUAL
SPECIFICATIONS
LCD COLOR TV
US Model
Canadian Model
KDL32XBR950/KDL42XBR950
MBD-XBR950L
LDM-3210
LDM-4210
Panel System
LCD (Liquid Crystal Display) panel
Display resolution
KDL32XBR950
1280 pixels (horizontal)
× 768 pixels (vertical)
KDL42XBR950
1366 pixels (horizontal)
× 768 pixels (vertical)
Antenna
75 ohm external terminal for VHF/UHF
Television System
NTSC, American TV Standard
Channel Coverage
VHF
2-13
UHF
14-69
DTV
1-999
CATV
1-125
Power Requirements
120V, 60 Hz
Inputs/Outputs
DVI-HDTV
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.
Video (IN)
3 total (1 on front panel)
1 Vp-p, 75 ohms unbalanced, sync negative
S Video (IN)
total (1 on front panel)
Y: 1 Vp-p, 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
Audio (IN)
total (1 on front panel)
500 mVrms (100% modulation)
Impedance: 47 kilohm
Component Video Input
2 (Y, PB, PR)
: 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 (IN)
1
Mini jack
CONTROL S (OUT)
1
Mini jack
Digital Audio Optical Output
(PCM/Dolby Digital)
1
ptical rectangular (1)
3
6
Y
O


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2
KDL32XBR950/KDL42XBR950 (UC)
Design and specifications are subject to change without notice.
Mass
Display unit
LDM-3210
LDM-4210
28.9 kg (63 lbs 12 oz) (with the supplied stand)
22.1 kg (48 lbs 12 oz) (without the stand)
30 kg (66 lbs 3 oz)
Media receiver unit
MBD-XBR950L
6.5 kg (14 lbs 5 oz)
Power Consumption
In Use
isplay unit
LDM-3210: 150 W
LDM-4210: 240 W
Media receiver unit
MBD-XBR950L: 53 W
In Standby
Under 1.5 W
i.LINK standby
Under 22 W
Supplied Accessories
Media receiver unit
Remote Control (1)
AA (R6) Batteries (2)
AC power cord (2)
Display interface cable (1)
Antenna cable (1)
Operating Instructions (1)
Quick Start Guide (1)
Warranty Card (1)
RM-Y1000
Display unit
Speaker jack covers (2) (KDL42XBR950 only)
D
i.LINK
3 total (1 on front panel)
4-pin S400 i.LINK terminal
Variable/Fixed Audio (OUT)
1
ore than 408 mVrms at the maximum volume
setting (Variable)
More than 408 mVrms (Fixed)
Impedance (output): 2 kilohms
Sub woofer (OUT)
1
Phono jack
RF Inputs
Screen Size (measured diagonally)
KDL32XBR950
32 inches
KDL42XBR950
42 inches
Speaker Output
KDL32XBR950
10 W
× 2
KDL42XBR950
12.5 W
× 2
Dimensions (W
× H × D)
Display unit
LDM-3210
LDM-4210
1052
× 635 × 229 mm
(42 1/4
× 25 × 9 1/8 in) (with the supplied stand)
1052
×569 ×97 mm
(42 1/4
×22 1/2 ×3 7/8 in) (without the stand)
1349
×694 ×102 mm
(53 1/8
× 27 3/8 × 4 1/8 in)
Media receiver unit
MBD-XBR950L
430
×79 × 342.8 mm
(17
× 3 1/8 ×13 1/2 in)
M
2


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KDL32XBR950/KDL42XBR950 (UC)
3
WARNING AND CAUTIONS
CAUTION
These servicing instructions are for use by qualified 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 qualified to do so.
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 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 adjustments that are critical for safe operation are identified 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 qualifié 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 qualifié faire ainsi.
Afin 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 identifies 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 identifies dans le present manuel. Suivre ces procedures lors de chaque
remplacement de composants critiques, ou lorsqu'un mauvais fonctionnement suspecte.


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4
KDL32XBR950/KDL42XBR950 (UC)
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-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, though 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 antenna terminals, metal trim, "metallized" knobs,
screws, and all other exposed metal parts for AC Leakage.
Check leakage as described right.
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
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 0.75 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 bat-
tery 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.
WARNING!!
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 AP-
PEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS 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 IMPROPER OPERATION IS
SUSPECTED.
AVERTISSEMENT!!
ATTENTION AUX COMPOSANTS RELATIFS À LA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET
UNE MARQUE ! 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.
SUIVRE
CES
PROCÉDURES LORS DE CHAQUE REMPLACEMENT DE
COMPOSANTS CRITIQUES, OU LORSQU'UN MAUVAIS
FONCTIONNEMENT EST SUSPECTÉ.
1.5 k
0.15 µF
AC
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground