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Ver.
DATA
CONTENTS
1.0
2005. 9
Issued
1.1
2005. 12 Addition of REPAIR MANUAL for Centralized Service Center (APPENDIX)
MODEL NAME : KDX-46Q005
SERVICE MANUAL
PARTS No. : 9-878-325-02
MODIFICATION HISTORY
* Blue characters are linking.


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SERVICE MANUAL
SPECIFICATIONS
MR3 CHASSIS
KDX-46Q005
LCD DIGITAL COLOR TV
US Model
Canadian Model
Panel System
LCD Panel
Display Resolution
1920 pixels (horizontal) x 1080 pixels (vertical)
Antenna
75 ohm external terminal for VHF/UHF
Television System
NTSC
American TV Standard
ATSC (8VSB terrestrial)
ATSC compliant 8VSB
QAM on cable
ANSI/SCTE 07 2000
Screen Size (measured diagonally)
46 inches
Channel Coverage
Terrestrial (analog)
2-69
Cable TV (analog)
1-125
Terrestrial (digital)
2-69
Cable TV (digital)
1-135
Power Requirements
120V, 60 Hz
Inputs/Outputs
HDMI IN
2 total
Video: 1080i, 720p, 480p, 480i
Audio: Two channel linear PCM 32, 44.1 and
48 kHz, 16, 20 and 24 bit
Not compatible with compressed sound,
such as AC-3 and DTS.
Video (IN)
3 total (1 on front unit)
1 Vp-p, 75 ohms unbalanced, sync negative
S Video (IN)
3 total (1 on front unit)
Y: 1 Vp-p, 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
Audio (IN)
6 total (1 on front unit)
500 mVrms (100% modulation)
Impedance: 47 kilohms
XDM-F4600Q
MBD-Q005


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KDX-46Q005 (UC)
2
Design and specifications are subject to change without notice.
PC (IN)
1 (D-sub 15pin)
PC AUDIO (IN)
1
Stereo mini jack, 500 mVrms, 47 kilohms
Speaker Output
25 W (L), 25 W (R), 50 W (Woofer)
Dimensions (W
× H × D)
Display 1239 x 717 x 130 (mm) Media Receiver Unit 430 x 97 x 350 (mm)
Mass
Display Approx. 59 kg
Media Receiver Unit Approx. 9.1 kg
Power Consumption
In Use
Display 612 W
Media Receiver Unit 60 W
In Standby
Display 0.5 W
Media Receiver Unit 0.4 W
In i.LINK/CableCARD Standby
Less than 30 W
Supplied Accessories
Remote Control
RM-Y1000
AA (R6) Batteries
2 supplied for remote control
AC Power Cord
2
AC Plug Holder
1
1
Display Interface Cable
Antenna Cable
1
Vertical Installation Stand
1
Vertical Installation Stand Screws 2
Owner's Guide
1
Quick Setup Guide
1
Warranty
1
Product Registration Card
1
Component Video Input
2 (YPBPR)
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 (IN)
1
1
Mini jack
CONTROL S (OUT)
Mini jack
AUDIO (VAR/FIX) OUT
1
500 mVrms at the maximum volume setting
(Variable)
500 mVrms (Fixed)
Impedance (output): 2 kilohms
i.LINK
3 total (1 on front panel)
4-pin S400 i.LINK terminal
RF Inputs
2
Digital Audio Optical Output
(PCM/Dolby Digital)
1
Optical Rectangular (1)
CableCARD Slot
PCMCIA Type I/II
SUBWOOFER (VAR)(OUT)
1
1
1
Phono jack
CENTER SPEAKER (IN)
Max. 180 W (6
), 1 kHz, Sensitivity 30 Vp-p
DISPLAY SIGNAL OUT
1 Black
1 White


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KDX-46Q005 (UC)
3
WARNINGS 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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KDX-46Q005 (UC)
4
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 cer-
tain that you have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transis-
tors, 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 ex-
amples of a passive VOMs that are suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k
0.15 µF
AC
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
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 APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE
CRITICAL FOR SAFE OPERATION ARE IDENTIFIED IN
THIS MANUAL. FOLLOW THESE PROCEDURES WHEN-
EVER 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.