Sony KP-53XBR300 - 53" Color Rear Video Projector... User manual

CHASSIS RA-4ASERVICE MANUAL
MODEL COMMANDER DEST. CHASSIS NO.
–––––––– ––––––––––––––– –––––– ––––––––––––––
KP-53XBR300 RM-Y902 US SCC-P21A-A
KP-53XBR300 RM-Y902 Canadian SCC-P21A-A
KP-61XBR300 RM-Y902 US SCC-P21B-A
KP-61XBR300 RM-Y902 Canadian SCC-P21B-A
MODEL COMMANDER DEST. CHASSIS NO.
–––––––– ––––––––––––––– –––––– ––––––––––––––
MICROFILM
53 61
∗Please file according to model size. .......
TV
2
5
8
0
1
4
7
3
6
9
DISPLAY TV/VIDEO ANT
JUMP
ENTER
MENU
RESET
VOL CH
MUTING TV
OFF
AUDIO SWAP
TV/DBS
PICTURE
MODE
GUIDE ACTIVE
POTITION LEFT RIGHT ZOOM IN
FREEZE
POWER
SYSTEM
OFF
DVD/
VTR DBS CABLE
FUNCTION
DVD/VTR DBS/CABLE TV
CC
KP-61XBR300KP-53XBR300
RM-Y902
COLOR REARVIDEO PROJECTOR

– 2 –
KP-53XBR300/61XBR300
RM-Y902RM-Y902
SPECIFICATIONS

– 3 –
KP-53XBR300/61XBR300
RM-Y902RM-Y902
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.
LEAKAGETEST
TheAC 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. Abattery-operatedAC 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)
HOWTO 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
Ω
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

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KP-53XBR300/61XBR300
RM-Y902RM-Y902
SELF DIAGNOSIS FUNCTION
* : 000 the range of values for number of operations is 000-255. For 256 or higher there is
no count up and the number remains at 255.
3. Blinking count display ofTIMER/STANDBY indicator
1. Summary of Self-Diagnosis Function
• This device includes a self-diagnosis function.
• In case of abnormalities, the TIMER/STANDBY indicator automatically blinks. It is possible to predict the abnormality location
by the number of blinks. The Instruction Manual describes blinking of the TIMER/STANDBY indicator.
• If the symptom is not reproduced sometimes in case of a malfunction, there is recording of whether a malfunction was generated
or not. Operate the remote command to confirm the matter on the screen and to predict the location of the abnormality.
2. Diagnosis Items and Prediction of Malfunction Location
• When a malfunction occurs the TIMER/STANDBY indicator only blinks for one of the following diagnosis items. In case of two
or more malfunctions, the item which first occurred blinks. If the malfunctions occurred simultaneously, the item with the lower
blink count blinks first.
• The screen display displays the results regarding all the diagnosis items listed below. The display “ 0 ” means that no malfunc-
tions occurred.
Lamp OFF :
3.0 seconds
Lamp ON : 0.3 seconds
Lamp OFF : 0.3 seconds
Release of TIMER/STANDBY indicator blinking.
• The TIMER/STANDBY indicator blinking display is released by turning OFF the power switch
on the TV main unit or removing the plug from the power.
*One blink is not used for self-diagnosis.
•EXAMPLE
<Diagnosis Items> <Number of Blinks>
• +B overcurrent 2 times
• +B overvoltage 3 times
• Vertical deflection stop 4 times
< FRONT PANEL >
TIMER/STANDBY indicator
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KP-53XBR300/61XBR300
RM-Y902RM-Y902
4. Self-diagnosis screen displays
• In cases of malfunctions where it is not possible to determine the symptom such as when the power goes off occasionally or when
the screen disappears occasionally, there is a screen display on whether the malfunction occurred or not in the past (and whether
the detection circuit operated or not) in order to allow confirmation.
<Screen Display Method>
• Quickly press the remote command button in the following order from the standby state.
5. Self-Diagnosis Screen Display
• The results display is not automatically cleared. In case of repairs and after repairs, check the self-diagnosis screen and be sure
to return the results display to “ 0 ”.
• If the results display is not returned to “ 0 ” it will not be possible to judge a new malfunction after completing repairs.
<Method of Clearing Results Display>
<Method of Ending Self Diagnosis Screen>
• When ending the self-diagnosis screen completely, turn the power switch OFF on the remote commander or the main unit.
˘
Be aware that this differs from the method of
entering the service mode (volume + ).
DISPLAY bChannel 5 bVOL – bPOWER
Self Check
2 : +B OCP 000
2 : +B OCP 000
3 : +B OVP 000
4 : V Stop 000
5 : AKB 000
6 : H Stop 000
7 : HV 000
8 : Audio 000
9 : WDT 000
000 the range of values for number of
operations is 000-255.
For 256 or higher there is no count up
and the number remains at 255.
Diagnosis
Results
÷

Self-diagnosis screen display
1. Power off (Set to the standby mode)
2. DISPLAY bChannel 5 bVOL + bPOWER (Service Mode)
3. Channel 8 bENTER (Test reset = Factory preset condition)

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KP-53XBR300/61XBR300
RM-Y902RM-Y902
6. Self-diagnosis function operation
OCP Low B and +B line detect DET SHORT, and shut-down POWER ON RELAY.
Reset by turning power on/off.
In case of +B is loaded approx. 1.5A or more, microcomputer detects it via IC6102.
OVP In case of +B becomes approx. 150V or more, POWER ON RELAY shuts down and microcomputer detects it via IC6102.
Reset by turning power on/off just the same as OCP.
V Stop In case of V Drive disappeared, Q5005 detecs it and shut-down POWER ON RELAY. Microcomputer detects it and makes LED
blinking.
AKB IK detection. Makes LED blinking in case of microcomputer doesn’t detect IK returns of IC511 (CXA2101AQ) 30 seconds or
more.
H Stop In case of H DRIVE is disappeared, Q5006 detects it and shut-down POWER ON RELAY shuts down.
Microcomputer receives H Stop data from Q5006 and makes LED blinking.
HV Stop In case of HV becomes 33KV or more. IC8006 and IC8010 detect it and shut-down
POWER ON RELAY. Microcomputer makes LED blinking.
Audio In case of DC component overlaps the output of Audio Amp., POWER ON RELAY shuts down.
Microcomputer detects it and makes LED blinking.
Self-diagnosis block diagram
53
4850
3
4
5 6713
49
47
50
55
27
28
33
5. AKB
5. AKB
3. OVP
2. OCP
4. V.STOP (V Pulse)
6. H.STOP
7. HV.STOP
8. Audio
2. OVP
3. OCP
4. V.STOP
6. H.STOP
7. HV STOP
8. AUDIO
IC1008
MAIN-CPU
IC1009
OSD-CPU
IC511
CXA2101AQ
MCP
D3102
TIMER/STANDBY
R1802
IC1007
EEPROM
Q5006
H PULSE
Detector
IC8006,8010
HV Detector
IC512
CXD2018Q
VDSP
Q5005
V Pulse Detector
IC6102
OVP Buffer
OCP Buffer
C Board
DC Detect
IC5004
V Drive
IC2601, 2602, 2603
6. H STOP
BUS
BUS
56
48
OVP DETECT
OCP DETECT
16
22
Audio AMP

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KP-53XBR300/61XBR300
RM-Y902RM-Y902
TABLE OF CONTENTS
Section Title Page
–––––– –––– –––– Section Title Page –––––– –––– ––––
SELF DIAGNOSIS FUNCTION............................................ 4
1. GENERAL
Remote Control ....................................................................... 9
Installing and Connecting the Projection TV .......................... 9
Basic Set Up .......................................................................... 18
Using Your New Projection TV ............................................ 19
Adjusting Your SET UP (menus) .......................................... 23
Operating Video Equipment.................................................. 34
Operating a Cable Box or DBS Receiver.............................. 35
2. DISASSEMBLY
2-1. Screen Frame Assy and HC Board Removal ............ 37
2-2. Rear Board Removal ................................................. 37
2-3. Main Bracket Removal ............................................. 37
2-4. Service Position......................................................... 37
2-5. G Board Removal...................................................... 38
2-6. Terminal Board and U Board Removal ..................... 38
2-7. K Board Removal...................................................... 38
2-8. BM, BR and BD Board Removal.............................. 38
2-9. BA Board Removal ................................................... 39
2-10. DS Board Removal ................................................... 39
2-11. A and D Board Removal ........................................... 39
2-12. Reflection Mirror Removal ....................................... 40
2-13. HA and HB Board Removal...................................... 40
2-14. Picture Tube Removal ............................................... 41
2-15. High-Voltage Cable Installation and Removal.......... 41
3. SET-UP ADJUSTMENTS
3-1. Screen Voltage Adjustment (Rough Alignment) ....... 42
3-2. Focus Lens Adjustment ............................................. 42
3-3. Screen (G2) Adjustment ............................................ 42
3-4. Focus VR Adjustment ............................................... 42
3-5. Deflection York Tilt Adjustment ............................... 43
3-6. 2-Pole Magnet Adjustment (Green, Red) .................. 43
3-7. 4-Pole Magnet Adjustment........................................ 43
3-8. Defocus Adjustment (Blue) ....................................... 43
3-9. Electrical Adjustment by Remote Commander ......... 44
3-10. Registration Adjustment ............................................ 50
3-11. Auto Registration Error Code List ............................ 53
4. SAFETY RELATED ADJUSTMENTS
4-1. HV Regulation Circuit Check and Adjustment ......... 54
4-2. HV Hold Down Circuit Operation and Adjustment .. 54
4-3. +B OVP Confirmation .............................................. 54
5. CIRCUIT ADJUSTMENTS
5-1. TV Input Sub Contrast Adjustment
(MCD1 SCON) ......................................................... 55
5-2. Video Input Sub-Contrast Adjustment
(MCD3-SCON) ......................................................... 55
5-3. P & P Sub-Contrast Adjustment (MCD2-SCON) ..... 55
5-4. P & P Sub-Contrast Adjustment (MCD4-SCON) ..... 55
5-5. 480 I Sub-Contrast Adjustment(MCP2-SCON)....... 56
5-6. Video 5 Input Sub-Contrast Adjustment
(MCP3-scon) ............................................................. 56
5-7. Sub-HUE and Sub-Color Adjustment
(MCD1-SHUE,SCOL) .............................................. 56
5-8. Video Input Sub-HUE and Sub-Color Adjustment
(MCD3-SHUE,SCOL) .............................................. 56
5-9. P & P Sub-HUE and Sub-Color Adjustment
(MCD2-SHUE,SCOL) .............................................. 57
5-10. P & P Sub-HUE and Sub-Color Adjustment
(MCD4-SHUE,SCOL) .............................................. 57
5-11. P & P Sub Contrast Adjustment (MCD1-SCON)...... 57
5-12. P & P Sub ContrastAdjustment (MCD2-SCON)...... 57
5-13. Sub-HUE and Sub-Color Adjustment
(SCD1-SHUE,SCOL) ............................................... 58
5-14. Sub-HUE and Sub-Color Adjustment
(SCD2-SHUE,SCOL) ............................................... 58
5-15. Video 5 Input Sub-HUE and Sub-Color Adjustment
(MCP3-SHUE,SCOL)............................................... 58
5-16. Display Position Adjustment (OSD-HPOS)............. 59
5-17. Caption Vision Position Adjustment
(MCCD-CCDH) ........................................................ 59
5-18. Mid Display Position Adjustment (MID-HPOS) ..... 59
6. DIAGRAMS
6-1. Block Diagram (1)..................................................... 61
Block Diagram (2)..................................................... 64
Block Diagram (3)..................................................... 67
Block Diagram (4)..................................................... 69
Block Diagram (5)..................................................... 71
Block Diagram (6)..................................................... 74
Block Diagram (7)..................................................... 77
Block Diagram (8)..................................................... 79
6-2. Frame Schematic Diagram ........................................ 81
6-3. Circuit Boards Location ............................................ 84
6-4. Printed Wiring Boards and Schematic Diagrams...... 84
• A (1/4)Board ........................................................... 89
• A (2/4)Board ........................................................... 93
• A (3/4)Board ........................................................... 97
• A (4/4)Board ......................................................... 100
• BA Board .............................................................. 104
• BM Board ............................................................. 107
• BR Board .............................................................. 115
• BD Board .............................................................. 120
• DS Board .............................................................. 123
• D(1/2) Board ......................................................... 127
• D(2/2) Board ......................................................... 130
• K Board................................................................. 139
• CR Board .............................................................. 143
• CG Board .............................................................. 144
• CB Board .............................................................. 145
• ZR Board .............................................................. 147
• ZG Board .............................................................. 148
• ZB Board .............................................................. 150
• U Board................................................................. 151
• HA Board .............................................................. 153
• HB Board .............................................................. 153
• HC Board .............................................................. 153
• G Board................................................................. 157
6-5. Semiconductors ....................................................... 160
7. EXPLODED VIEWS
7-1. Cover (KP-53XBR300)........................................... 162
7-2. Cover (KP-61XBR300)........................................... 163
7-3. Chassis..................................................................... 164
7-4. Picture Tube ............................................................ 165
8. ELECTRICAL PARTS LIST ................................. 166

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KP-53XBR300/61XBR300
RM-Y902RM-Y902
(CAUTION)
SHORTCIRCUITTHEANODE OF THE PICTURE TUBEAND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CAR-
BON PAINTED ON THE CRT, AFTER REMOVING THE ANODE.
WARNING!!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECElVER IS DIRECTLY CONNECTED
TO THE AC POWER LINE.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADINGAND MARK !ONTHE
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESECOMPONENTS WITH SONY PARTS WHOSE PART NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY. CIRCUITADJUSTMENTS THAT
ARE CRITICALTO SAFEOPERATIONARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITI-
CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.
(ATTENTION)
APRESAVOIR DECONNECTE LE CAP DE L’ANODE, COURTCIR-
CUITER L’ANODE DU TUBE CATHODIQUE ET CELUI DE
L’ANODE DU CAP AU CHASSIS METALLIQUE DE L’APPAREIL,
OUAU COUCHE DE CARBONE PEINTE SUR LE TUBE CATHOD-
IQUE OU AU BLINDAGE DU TUBE CATHODIQUE.
ATTENTION!!
AFIN D’EVITER TOUT RISQUE DELECTROCUTION PROVE-
NANT D’UN CHÁSSIS SOUSTENSION, UN TRANSFORMATEUR
D’ISOLEMENT DOIT ETRE UTILISÉ LORS DE TOUT DEPAN-
NAGE.
LE CHÁSSIS DE CE RECEPTEUR EST DIRECTEMENT RAC-
CORDÉ Á L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS ÁLA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET PAR UNE
MAPQUE !SUR LES SCHÉMAS DE PRINCIPE, LES VUES EX-
PLOSÉES ET LES LISTES DE PIECES CONT D’UNEIMPORTANCE
CRITIQUE POUR LASÉCURITÉ DU FONCTIONNEMENT. NE LES
REMPLACER QUE PAR DES COMPOSANTS SONY DONT LE
NUMÉRO DE PIÉCE EST INDIQUÉ DANS LE PRÉSENT MAN-
UEL OU DANS DES SUPPLÉMENTS PUBLIÉS PAR SONY. LES
RÉGLAGES DE CIRCUIT DONTL’IMPORTANCE ESTCRITIQUE
POUR LA SÉCURITÉ DU FONCTIONNEMENT SONT IDENTIFIES
DANS LE PRÉSENT MANUEL. SUIVRE CES PROCÉDURES
LORS DE CHAQUE REMPLACEMENT DE COMPOSANTS CRI-
TIQUES, OU LORSQU’UN MAUVAIS FONCTIONNEMENT EST
SUSPECTÉ.

– 9 –
SECTION 1
GENERAL
The operating instructions mentioned here are partial abstracts from the
Operating Instructions Manual. The page numbers of the Operating
Instruction Manual remain as in the manual. (Part no : 3-867-651-11)

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