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HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
SERVICE MANUAL AX-1X CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.
KP-46WT520 RM-Y916 US/CND/MX SCC-M37B-A
KP-51WS520 RM-Y916 US/CND/MX SCC-M37C-A
KP-57WS520 RM-Y916 US/CND/MX SCC-M37A-A
ORIGINAL MANUAL ISSUE DATE: 7/2004
REVISION DATE REVISION TYPE SUBJECT
7/2004 No revisions or updates are applicable at this time.
COLOR REAR VIDEO PROJECTION
9-965-968-01
Self Diagnosis
Supported model
SERVICE MANUAL AX-1X CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.
KP-46WT520 RM-Y916 US/CND/MX SCC-M37B-A
KP-51WS520 RM-Y916 US/CND/MX SCC-M37C-A
KP-57WS520 RM-Y916 US/CND/MX SCC-M37A-A
KP-51WS520 RM-Y916
COLOR REAR VIDEO PROJECTION
9-965-968-01
KP-46WT520/51WS520/57WS520
TABLE OF CONTENTS
SECTION TITLE PAGE SECTION TITLE PAGE
Specifications ................................................................................. 4 SECTION 4: CIRCUIT ADJUSTMENTS.............................................. 60
Warnings and Cautions .................................................................. 5 4-1. P & P Sub Contrast Adjustment (Video) (SCON) ................. 60
Safety Check-Out ........................................................................... 6 4-2. P & P Sub Contrast Adjustment (RF) (SCON) ..................... 60
Self-Diagnostic Function................................................................. 7 4-3. P & P Sub-Hue and Sub-Color Adjustment Video
(SHUE, SCOL) ..................................................................... 60
SECTION 1: DISASSEMBLY............................................................... 10
4-4. P & P Sub-Hue and Sub-Color Adjustment
1-1. Rear Board Removal............................................................ 10
(RF) (SHUE, SCOL)............................................................. 60
1-2. Chassis Assembly Removal................................................. 10
4-5. Blue Offset Adjustment......................................................... 61
1-3. Service Position ....................................................................11
1-4. Terminal Board and P Board Removal..................................11 SECTION 5: DIAGRAMS..................................................................... 62
1-5. BM Board Board Removal ................................................... 12 5-1. Circuit Boards Location ........................................................ 62
1-6. A Board, D Board, and G Board Removal............................ 12 5-2. Printed Wiring Boards and
1-7. High-Voltage Cable Installation and Removal...................... 13 Schematic Diagrams Information ......................................... 62
1-8. Picture Tube Removal.......................................................... 13 5-3. Block Diagrams .................................................................... 64
1-9. Speaker Grille, HA1 Board, and HB2 Board Removal Signal Flow Block Diagram .................................................. 64
(KP-46WT520 Only)............................................................. 14 Power Block Diagram........................................................... 65
1-10. Speaker Grille, HA1 Board, and HB1 Board Removal Audio Signal Path Block Diagram ........................................ 66
(KP-51WS520/57WS520 Only)............................................ 14 Video Path Block Diagram ................................................... 67
1-11. Beznet Assembly Removal .................................................. 15 SYNC/OSD Path Block Diagram.......................................... 68
1-11-1. Screen Tape Method................................................ 15 5-4. Schematics and Supporting Information ............................. 69
1-12. SR Board Removal .............................................................. 16 CR Board Schematic Diagram ............................................ 69
Wire Dressing....................................................................... 17 CB Board Schematic Diagram ............................................ 70
CG Board Schematic Diagram ............................................ 71
SECTION 2: SET-UP ADJUSTMENTS................................................ 31
VM Board Schematic Diagram ............................................ 74
2-1. Screen Voltage Adjustment (G2) (Coarse Adjustment) ........ 31
A Board Schematic Diagram (1 of 6).................................... 75
2-2. Screen (G2) Adjustment (Fine Adjustment).......................... 31
A Board Schematic Diagram (2 of 6).................................... 76
2-3. Deflection Yoke Tilt Adjustment ............................................ 31
A Board Schematic Diagram (3 of 6).................................... 77
2-4. Focus Lens Adjustment........................................................ 32
A Board Schematic Diagram (4 of 6).................................... 78
2-5. Focus VR Adjustment........................................................... 32
A Board Schematic Diagram (5 of 6).................................... 79
2-6. Centering Magnet Adjustment.............................................. 33
A Board Schematic Diagram (6 of 6).................................... 80
2-7. 2-Pole Magnet Adjustment .................................................. 33
D Board Schematic Diagram (1 of 2) ................................... 85
2-8. 4-Pole Magnet Adjustment ................................................... 33
D Board Schematic Diagram (2 of 2) ................................... 86
2-9. Defocus Adjustment (Blue)................................................... 33
BM Board Schematic Diagram (1 of 3) ................................ 90
2-10. Electrical Adjustments by Remote Commander................... 34
BM Board Schematic Diagram (2 of 3) ................................ 91
2-10-1. Method of Entering the Service Adjustment Mode .. 34
BM Board Schematic Diagram (3 of 3) ................................ 92
2-10-2. Memory Write Confirmation Method ........................ 34
G Board Schematic Diagram ............................................... 94
2-10-3. Adjusting Buttons and Indicator ............................... 34
HA1 Board Schematic Diagram .......................................... 97
2-11. Adjustable Service Data Lists .............................................. 35
P Board Schematic Diagram................................................ 98
2-11-1. ID Map Table............................................................ 49
SR Board Schematic Diagram ............................................ 99
2-12. Registration Adjustment (PJE Mode Only)........................... 50
HB1 Board Schematic Diagram
2-12-1. Setup for Adjustment ............................................... 50
(KP-51WS520/57WS520 Only) .............................. 99
2-12-2. Main Deflection Adjustment ..................................... 50
HB2 Board Schematic Diagram
2-12-3. Operation Method for Projector Engine Mode ......... 51
(KP-46WT520 Only) ................................................ 99
2-13. PJE Adjustment (Sub Deflection Adjustment) ...................... 52
5-5. Semiconductors ................................................................. 101
2-13-1. Adjustment for NTSC Full Mode .............................. 53
2-13-2. Copying All Registration Data to Other Modes ........ 55 SECTION 6: EXPLODED VIEWS...................................................... 102
2-14. Auto Registration Offsets ..................................................... 55 6-1. Cover (KP-46WT520 Only) ................................................ 102
2-15. Auto Registration Error Codes ............................................. 56 6-2. Cover (KP-51WS520/57WS520 Only) ............................... 103
2-16. Auto Registration Diagnostics .............................................. 57 6-3. Chassis .............................................................................. 104
6-4. Picture Tube ....................................................................... 105
SECTION 3: SAFETY-RELATED ADJUSTMENTS............................. 58
D BOARD ..................................................................................... 58 SECTION 7: ELECTRICAL PARTS LIST......................................... 106
3-1. HV Regulation Circuit Check and Adjustment...................... 58
3-2. HV Hold Down Circuit Operation Check .............................. 58
G BOARD ..................................................................................... 59
3-3. +B Max Voltage Confirmation .............................................. 59
3-4. +B OVP Confirmation........................................................... 59
KP-46WT520/51WS520/57WS520 3
KP-46WT520/51WS520/57WS520
SPECIFICATIONS
Power Requirements 120V AC, 60Hz
Power Consumption (W) Audio (IN)
In Use (Max) 235W 7 total (1 on front panel)
In Standby Under 1 W 500 mVrms (100% modulation)
Impedance:47 kilohm
Inputs/Outputs HDMI IN
Video Component Video Input
1080i, 720p, 480p, 480i 2 ( Y,PB,PR)
Audio Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative;
Two channel linear PCM 32, 44.1, and 48 kHz, 16, 20, and 24 bit PB: 0.7 Vp-p, 75 ohms;
PR: 0.7 Vp-p, 75 ohms
Video (IN)
4 total (1 on front panel) Control S (IN/OUT)
1Vp-p, 75ohms unbalanced, sync negative 1 total
S Video (IN) Variable/Fixed Audio (OUT)
3 total (1 on front panel) More than 408 m Vrms at the maximum volume setting
Y: 1Vp-p, 75ohms unbalanced, sync negative (Variable)
C: 0.286Vp-p (Burst signal), 75ohms More than 408 m Vrms (Fixed) Impedance (output):2 kilohms
KP-46WT520 KP-51WS520 KP-57WS520
Speaker Output (W) 20W x 2
Dimensions (W x H x D)
mm 1086 x 1017 x 609 mm 1194 x 1280 x 666 mm 1326 x 1377 x 692 mm
in 423/4 x 40 x 24 in 47 x 501/2 x 261/4 in 521/4 x 541/4 x 271/4 in
Mass kg 61.3 kg 77.2 kg 88 kg
lbs 135 lbs 170 lbs 194 lbs
Projection System Screen Size (measured diagonally)
3 picture tubes, 3 lenses, horizontal in-line system 46 inches (KP-46WT520)
51 inches (KP-51WS520)
Picture Tube 57 inches (KP-57WS520)
7-inch high-brightness monochrome tubes (6.3 raster size),
with optical coupling and liquid cooling system. Supplied Accessories
Remote Control RM-Y916
Projection Lenses Batteries (2) size AA (R6)
High performance, large diameter hybrid lens F1.1
Optional Accessories
Antenna A/V Cable (VMC-810/820/830 HG)
75 ohm external terminal for VHF/UHF Audio Cable (RKC-515HG)
Component Video Cable (VMC-10/30 HG)
Television System Control S Cable (RK-G69HG)
NTSC, American TV Standard TV Stand SU-46WT11 (For KP-46WT520 Only)
Channel Coverage
VHF: 2-13/UHF: 14-69/CATV: 1-125
Design and specifications are subject to change without notice.
KP-46WT520/51WS520/57WS520 4
KP-46WT520/51WS520/57WS520
WARNINGS AND CAUTIONS
CAUTION
Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield, or carbon painted on the CRT, after
removing the anode.
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!!
Apres avoir deconnecte le cap de l'anode, court-circuiter l'anode du tube cathodique et celui de l'anode du cap au chassis metallique
de l'appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.
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.
KP-46WT520/51WS520/57WS520 5
KP-46WT520/51WS520/57WS520
SAFETY CHECK-OUT
After correcting the original service problem, perform the following Leakage Test
safety checks before releasing the set to the customer: 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
1. Check the area of your repair for unsoldered or poorly soldered chassis, must not exceed 0.5 mA (500 microamperes). Leakage current
connections. Check the entire board surface for solder splashes and can be measured by any one of three methods.
bridges.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
2. Check the interboard wiring to ensure that no wires are "pinched" or
instructions.
touching high-wattage resistors.
2. A battery-operated AC milliammeter. The Data Precision 245 digital
3. Check that all control knobs, shields, covers, ground straps, and
multimeter is suitable for this job.
mounting hardware have been replaced. Be absolutely certain that
you have replaced all the insulators.
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,
4. Look for unauthorized replacement parts, particularly transistors,
so analog meters must have an accurate low voltage scale. The
that were installed during a previous repair. Point them out to the
Simpson's 250 and Sanwa SH-63TRD are examples of passive
customer and recommend their replacement.
VOMs that are suitable. Nearly all battery-operated digital multimeters
that have a 2 VAC range are suitable (see Figure A).
5. Look for parts which, though functioning, show obvious signs of
deterioration. Point them out to the customer and recommend their
replacement. How to Find a Good Earth Ground
A cold-water pipe is a guaranteed earth ground; the cover-plate retaining
6. Check the line cords for cracks and abrasion. Recommend the screw on most AC outlet boxes is also at earth ground. If the retaining
replacement of any such line cord to the customer. 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.
7. Check the B+ and HV to see if they are specified values. Make sure
your instruments are accurate; be suspicious of your HV meter if
If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble-
sets always have low HV.
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 on the
8. Check the antenna terminals, metal trim, "metallized" knobs, screws, line; the lamp should light at normal brilliance if the screw is at ground
and all other exposed metal parts for AC leakage. Check leakage as potential (see Figure B).
described below.
To Exposed Metal
Parts on Set
Trouble Light
Ohmmeter
AC Outlet Box
AC Voltmeter
0.15 µF 1.5 k (0.75 V)
Cold-water Pipe
Earth Ground
Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.
KP-46WT520/51WS520/57WS520 6
KP-46WT520/51WS520/57WS520
SELF-DIAGNOSTIC FUNCTION Self Diagnosis
Supported model
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to flash. The number
of times the LED flashes translates to a probable source of the problem. A definition of the STANDBY/TIMER LED flash indicators is listed in the
instruction manual for the user's knowledge and reference. If an error symptom cannot be reproduced, the Remote Commander can be used to review
the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
Diagnostic Test Indicators
When an error occurs, the STANDBY/TIMER LED will flash a set number of times to indicate the possible cause of the problem. If there is more than
one error, the LED will identify the first of the problem areas.
Results for all of the following diagnostic items are displayed on screen. If the screen displays a "0", no error has occurred.
No. of times
STANDBY / Display
Diagnostic Item Probable Cause Location Detected Symptoms
TIMER lamp Result
flashes
Power does not turn on Does not light _______ · Power cord is not plugged in. · Power does not come on.
· Fuse is burned out (F6000). (G Board) · No power is supplied to the TV.
· AC Power supply is faulty.
+B Overcurrent (OCP)* 2 times 2:0 or 2:1 · H.OUT (Q5001) is shorted. (D Board) · Power does not come on.
· +B PWM (Q5201) is shorted. · Load on power line shorted.
(D Board)
+B Overvoltage (OVP) 3 times 3:0 or 3:1 · IC6503 is faulty. (D Board) · Has entered standby mode.
Vertical Deflection Stopped 4 times 4:0 or 4:1 · 15V is not supplied. (D Board) · Has entered standby mode after
· IC5101 is faulty. (D Board) Horizontal raster.
· Vertical deflection pulse is stopped.
· Power line is shorted or power
supply is stopped.
White Balance Failure 5 times 5:0 or 5:1 · Video OUT (IC9101, IC9201, IC9301) · No raster is generated.
(not balanced) is faulty. (CR, CG, CB Board) · CRT cathode current detection
· CRT drive (IC452) is faulty. reference pulse output is small.
(A Board)
· G2 is improperly adjusted.**
LOW +B OCP/OVP 6 times 6:0 or 6:1 · +5 line is overloaded. · No picture
(overcurrent/overvoltage)*** (A and BM Boards)
· +5 line is shorted. (A and BM Boards)
· IC303 is faulty. (A Board)
Horizontal Deflection 7 times 7:0 or 7:1 · Q5006 is broken (D Board) · No picture
Stopped · IC452 is faulty (A Board)
Audio Protection 8 times 8:0 or 8:1 · + or - 22V audio supply is not · No picture
present--Check PS600 & PS601
· Audio AMP is damaged IC601 on
A Board
Zero Crossing Detector 9 times 9:0 or 9:1 · D6116 or D6301 is open (G Board) · No picture
HV Protection 10 times 10:0 or · Q8014 or Q8013 have shorted replace · No picture
10:1 along with R8051 on D Board
· IC8005 is damaged (D Board)
* If a +B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. The symptom that is diagnosed first by the
microcontroller is displayed on the screen.
** Refer to Screen (G2) Adjustment (Fine Adjustments) in Section 2 of this manual.
*** If STANDBY/STEREO LED flashes six (6) times, unplug the unit and wait 10 seconds before performing the adjustment.
KP-46WT520/51WS520/57WS520 7
KP-46WT520/51WS520/57WS520
Display of Standby/Timer LED Flash Count
TIMER Indicator STAND BY Indicator
Diagnostic items Flash count
+B Overcurrent 2 times
Low +B Overvoltage 3 times
Vert. Deflection Stopped 4 times
White Balance Failure 5 times
Low +B OCP/OVP 6 times
Horiz. Deflection Stopped 7 times
Audio Protection 8 times
Zero Crossing Detector 9 times
HV Protection 10 times
Lamp ON 0.3 sec. Lamp OFF 3 sec.
Lamp OFF 0.3 sec.
Release of TIMER STAND BY 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.
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.
_
Display Channel 5 Sound Volume* Power ON
SELF DIAGNOSIS *Note that this differs from entering the service mode (sound volume + )
2: +B OCP 0
3: +B OVP 0
Numeral "0"
4: VSTOP 0
means that no fault was detected.
5: AKB 1 Numeral "1"
6: LOWB 0 means a fault was detected one
7: H-STOP 0 time only.
8: AUDIO 0
9: ZCD 0
10: HV PROT 0
101: WDT 24
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
1. Power off (Set to the stand by mode.)
2. Display Channel 5 Sound Volume + Power ON (Service Mode)
3. Channel 8 ENTER (Test reset = Factory preset condition)
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.
KP-46WT520/51WS520/57WS520 8
KP-46WT520/51WS520/57WS520
Self-Diagnosis Function Operation
+B overcurrent (OCP)
Occurs when excessive current flows through R6812. The increase in voltage across Q6803 causes it to turn on which sends a high signal to the
micro.
+B overvoltage (OVP)
IC6801 detects +B OVP condition and turns on Q6802. This sends a high signal to the micro and also shuts down the AC relay.
V-STOP
Occurs when an absence of the vertical deflection pulse is detected by pin 56 of IC452 (A Board). Power supply will shut down when waveform interval
exceeds 2 seconds.
White Balance Failure
If the RGB levels* do not balance within 2 seconds after the power is turned on, this error will be detected by IC452 (A Board). TV will stay on, but
there will be no picture.
*(Refers to the RGB levels of the AKB detection Ref pulse that detects 1K).
Low B OCP/OVP
Occurs when set 5V is out.
Also check for : + 135V line shorted
+ 135V line is going over 145V
Horizontal Deflection Stopped
Occurs when either:
1) a +B overcurrent is detected (Q6803), or
2) IC452 (A Board) is damaged.
Self-Diagnosis Block Diagram
A IC452 A
Y/C JUNGLE
IC702
MAIN MICRO
AKB 58 CRT
STBY-LED
STR CLKO SCL
48 28 53
STBY-LED VPROT 56 VDY-
R5104 R5105
DATO
BM
44 OCP 31 52 SDA
HPROT 57
45 OVP
G R5125
5V
43 LOW B ERR
AC RLY 69 RY6000
Q5018
P_SW(-)
1 2
2 IC5007 14 D
4 3
Q6102
Q451 Q6802
IC6801
D6803 2
1K-PROT2 +B 1
Q452
+B OCP 3
D452
A D6505 R6812
+B +B
+BVOP
IC303 D453
5V 2 1 D
3
D6805
R6803
+B OCP
KP-46WT520/51WS520/57WS520 9
KP-46WT520/51WS520/57WS520
SECTION 1: DISASSEMBLY
1-1. REAR BOARD REMOVAL
2 Rear board
1 10 Screws (KP-46WT520 Only)
13 Screws (KP-51WS520 Only)
12 Screws (KP-57WS520 Only)
Dome Washer Hex Tap 4 x 20
1-2. CHASSIS ASSEMBLY REMOVAL
1 Three screws Dome Washer
(Hex Tap 4 x 20)
2 Chassis assy
KP-46WT520/51WS520/57WS520 10
KP-46WT520/51WS520/57WS520
1-3. SERVICE POSITION
1 Free wiring from purse locks.
NOTE: Observe wire dress
and return to original condition.
2 Covers
Remove covers from chassis assembly
with pliers when checking printed circuit boards.
After checking, turn the covers over
and re-secure them with the screws.
Chassis assembly Screws
(+BVTP 3x12)
1-4. TERMINAL BOARD AND P BOARD REMOVAL
6 Four screws
+BVTT 3x8
P board
4 Disconnect Ground Wire and Cable
5 Two screws
+BVTT 3 X 8
3 One screw
(M3 X 8) P, SW(+)
2 Six screws (+BVTP 3x12)
Main bracket 1
Two screws
Dome Washer Hex Tap 4 x 20
Terminal board
KP-46WT520/51WS520/57WS520 11
KP-46WT520/51WS520/57WS520
1-5. BM BOARD BOARD REMOVAL
3 Pry apart shield
to remove BM board
BM board
1 Pull gently back on clips
to release
2
Main bracket
1-6. A BOARD, D BOARD, AND G BOARD REMOVAL
1 Four screws
(+BVTP 3x12)
Seven screws 2
(+BVTP 3x12) A board
D board
Two screws 3
(+BVTP 3x12)
G board
4 Claws
Main bracket
KP-46WT520/51WS520/57WS520 12
KP-46WT520/51WS520/57WS520
1-7. HIGH-VOLTAGE CABLE INSTALLATION AND REMOVAL
(1) Removal (2) Installation
Gutter
1 Rubber cap
2 HV cable
turn 90 Hook 1 HV cable
1-8. PICTURE TUBE REMOVAL
CAUTION: Removing the arrow-marked screws is strictly prohibited. If removed, it may cause liquid to spill.
4 Four screws
Dome Washer Hex Tap 4x20
Lens
5 Lens
Picture tube
6 Shade (2 screws for Red Shade
1 screw for Green Shade)
10 Four screws
(+BVTP 4x12)
2 Four screws (+BVTP 4x12)
(2 per side) 11 Picture tube
Dome Washer
Hex Tap 4x20 9 Deflection yoke
8 Neck assy
7 CR board
3
1 Four screws (2 per side)
Dome Washer Hex Tap 4x20
KP-46WT520/51WS520/57WS520 13
KP-46WT520/51WS520/57WS520
1-9. SPEAKER GRILLE, HA1 BOARD, AND HB2 BOARD REMOVAL
(KP-46WT520 ONLY)
HB2 board 6
Two screws (+BVTP 3x12)
Input Terminal Plate
5 Input Terminal Bracket
Four screws
Dome Washer
Hex Tap 4 x 20
4 Input Terminal Cover
Two screws
(+BVTP 3x12)
The Speaker Grille Assy
1 Four screws Dome Washer Hex Tap 4x20
Note: (2 per side)
After removing the screws
pull firmly out (from the bottom)
to release it.
3 Four screws
2
(+BVTP 3x12)
HA1 board
1-10.SPEAKER GRILLE, HA1 BOARD, AND HB1 BOARD REMOVAL
(KP-51WS520/57WS520 ONLY)
HB1 board 6
Two screws (+BVTP 3x12)
Input Terminal Plate
5 Input Terminal Bracket
Four screws
Dome Washer
Hex Tap 4 x 20
4 Input Terminal Cover
Two screws
(+BVTP 3x12)
The Speaker Grille Assy
1 Six screws Dome Washer Hex Tap 4x20
Note: -3 per side (KP-51WS520/57WS520 Only)
2
The Speaker Grille Assy
is securely attached.
After removing the screws
pull firmly out (from the bottom) 3 Four screws
2
then down to release it. (+BVTP 3x12)
HA1 board
KP-46WT520/51WS520/57WS520 14
KP-46WT520/51WS520/57WS520
1-11.BEZNET ASSEMBLY REMOVAL
Eight screws (KP-46WT520 Only)
3
Nine screws (KP-51WS520/57WS520 Only)
Dome Washer Hex Tap 4x20
Beznet assy
2 Four screws Dome Washer Hex Tap 4x20
-2 per side
4 Four screws
Dome Washer
Hex Tap 4x20
1 Six screws Dome Washer Hex Tap 4x20
-3 per side (KP-46WT520 Only)
Four screws Dome Washer Hex Tap 4x20
-2 per side (KP-51WS520/57WS520 Only)
1-11-1. SCREEN TAPE METHOD
The following demonstrates the taping method when replacing the Contrast Screen or Diffusion Plates.
For Part Numbers refer to the Miscellaneous section in the back of the manual.
1 Tape, Acetate (P2412) 25x30M
Top
Contrast Screen
2
Tape, Acetate (P2412HD) 25MMx30M
KP-46WT520/51WS520/57WS520 15
KP-46WT520/51WS520/57WS520
1-12.SR BOARD REMOVAL
The Screen Holder does not need
to be removed in order to remove
the SR boards. Sensor
bracket (A)
Sensor
bracket (B)
6 SR board 3 One screw
(+BVTP 4x12)
5 Claws
1 Four screws
(+BVTP 4x12)
2 L screen
holder
4 One screw
(+BVTP 4x12)
KP-46WT520/51WS520/57WS520 16
KP-46WT520/51WS520/57WS520
WIRE DRESSING
46 Cabinet
46" HB
KP-46WT520/51WS520/57WS520 17
KP-46WT520/51WS520/57WS520
46 Cabinet
46" HA Wire
2nd Tape Position
46 Cabinet
46" HB
46" HA
KP-46WT520/51WS520/57WS520 18
KP-46WT520/51WS520/57WS520
51 & 57 Cabinet
51" & 57" HB
51 & 57 Cabinet
51" & 57" HB
51" & 57" HA
KP-46WT520/51WS520/57WS520 19
KP-46WT520/51WS520/57WS520
HV Wire
HV wire
HV Wire
HV wire
KP-46WT520/51WS520/57WS520 20
KP-46WT520/51WS520/57WS520
HV/MV Wire
HV/MV wire
VM Connect
VM wire
KP-46WT520/51WS520/57WS520 21
KP-46WT520/51WS520/57WS520
PWB Block Docking
PWB Block Docking
HA Connect
SP Connect
HB Connect
KP-46WT520/51WS520/57WS520 22
KP-46WT520/51WS520/57WS520
C, FP Connect
B-
G-
R G B
VM
RGB signal wire
46 DY
46" DY wire
Into the 1st purselock
VM,RGB C/N
V
DY-B
DY-G
DY-R
KP-46WT520/51WS520/57WS520 23
KP-46WT520/51WS520/57WS520
51 & 57 DY
51" & 57"DY wire dressing
Into the free purselock (8dia)
Into the 2nd purselock
VM,RGB C/N
V
DY-R
DY-G
DY-B
DY
H
DY-B DY-G DY-R
KP-46WT520/51WS520/57WS520 24
KP-46WT520/51WS520/57WS520
DY
Sub
DY-B DY-G
DY
Excess wire
KP-46WT520/51WS520/57WS520 25
KP-46WT520/51WS520/57WS520
Terminal Bracket Assy
ANT SW
5v C/N
Sub TU PP
HB C/N
Main TU PP
ANT SW GND
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KP-46WT520/51WS520/57WS520
F.P
51" & 57" F.P Wire Dressing
51 & 57 V2 Block Assy
51" & 57"
V2 BLK
2nd-Assy V2
BLK 1st-Assy
Test
Up(lock)/Dow
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KP-46WT520/51WS520/57WS520
AR Sensor
46" & 51"AR Sensor Wire
AR Sensor
57" AR Sensor Wire
Excess Wire
KP-46WT520/51WS520/57WS520 28
KP-46WT520/51WS520/57WS520
AR Sensor
Excess Wire
AR Sensor
KP-46WT520/51WS520/57WS520 29
KP-46WT520/51WS520/57WS520
AR Sensor
46 V2 Assy
HB Wire Connection
KP-46WT520/51WS520/57WS520 30
KP-46WT520/51WS520/57WS520
SECTION 2: SET-UP ADJUSTMENTS
2-1. SCREEN VOLTAGE ADJUSTMENT (G2) 2-3. DEFLECTION YOKE TILT ADJUSTMENT
(COARSE ADJUSTMENT) 1. Connect the color bar generator monoscope pattern to Video 1 input.
2. Cover the red and blue CRT lenses with lens caps to allow only green
1. Receive the Monoscope signal.
to show (or use the method shown in the note below for turning off
2. Set BRIGHTNESS to 50% and PICTURE to minimum. the CRTs individually without using lens caps).
3. Turn the red VR on the focus block all the way to the left and then 3. Loosen the CRT's deflection yoke set screw and align the tilt of the
gradually turn it to the right until the retrace line is barely visible. deflection yoke so that the horizontal bars at the center of the
4. Gradually turn the control to the left until the retrace line disappears. cross-hatch pattern are parallel to the top and bottom edges of the
screen.
4. After aligning the deflection yoke fasten it securely to the
R G B
funnel-shaped portion (neck) of the CRT.
SCREEN
R G B
5. Cover the green and blue CRT lenses with lens caps to allow only
green to show (or use the method shown in the note below for turning
FOCUS
off the CRTs individually without using lens caps), then repeat steps 3
and 4 for the red CRT.
FOCUS Block
Cover the green and red CRT lenses with lens caps to allow only
green to show (or use the