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SERVICE MANUAL
D D P P 2 2 5 5 H H / / D D P P 2 2 5 5 K K
N N T T S S C C
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TECHNICAL CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CIRCUIT PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CAUTIONS WHEN CONNECTING/DISCONNECTING THE HV CONNECTOR . . . . . .12
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
REMOTE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
CUSTOMIZED PICTURE AND SOUND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . .15
REAR PANEL CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
DISPLAY PICTURE FORMATS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
PROTECTION CIRCUIT BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
TROUBLESHOOTING FLOWCHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
DC VOLTAGE TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
BASIC CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
PRINTED CIRCUIT BOARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
FINAL WIRING DRAWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155
QUICK REFERENCE PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
DISASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .176
PWB Parts List Added ................................................................................................... 180
These servicing instructions are for use by qualified service personnel only. To reduce the risk of
CAUTION:
electric shock do not perform any servicing other than that contained in the operating instructions
unless you are qualified to do so. Before servicing this chassis, it is important that the service
technician read the "IMPORTANT SAFETY INSTRUCTIONS" in this service manual.
Components having special safety characteristics are identified by a
Service Data and its supplements and bulletins. Before servicing the chassis, it is important that the service technician
read and follow the "Important Safety Instructions" in this Service Manual.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
PROJECTION COLOR TELEVISION
FEBRUARY 2003
Version 0168.01
C C h h a a s s s s i i s s
TO GO TO A CHAPTER, CLICK ON ITS HEADING BELOW
SAFETY NOTICE
USE ISOLATION TRANSFORMER WHEN SERVICING
HHEA-MANUFACTURING DIVISION
PA
43F300:DP25K
53F300:DP25H
R/C: CLU-4321UG
CONTENTS
on the schematics and on the parts list in this
!
No. 0168
CLU-4324UG
27
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Summary of Contents for Hitachi CLU-4321UG
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Page 1: Table Of Contents
53F300:DP25H SERVICE MANUAL D D P P 2 2 5 5 H H / / D D P P 2 2 5 5 K K R/C: CLU-4321UG N N T T S S C C CLU-4324UG C C h h a a s s s s i i s s... -
Page 2: Important Safety Instructions
“Important Safety Instructions” in this Service Manual. For continued X-Radiation protection, replace picture tube with original type or Hitachi approved equivalent type. This Service Manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. - Page 3 DP25H/K IMPORTANT SAFETY INSTRUCTION 1. Before returning an instrument to the customer, always make a safety check of the entire instrument, including but not limited to the following items. (READING a. Be sure that no built-in protective devices are SHOULD NOT LEAKAGE defective and/or have been deleted during servicing.
- Page 4 For continued X-radiation protection, the replacement making test measurements. tube must be the same type as the original, Hitachi 2. To prevent X-radiation, after replacement of approved type. picture tube and lens, confirm these components...
- Page 5 4. Picture Tube Implosion Protection Warning – The safety characteristics as the recommended replace- picture tube in this receiver employs integral ment part in Hitachi service data parts list might implosion protection. For continued implosion create shock, fire, and/or other hazards. Product...
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Page 6: Servicing Precautions
DP25H/K SERVICING PRECAUTIONS CAUTION: Before servicing instruments covered by this 7. Do not apply AC power to this instrument and/or any of its service data and its supplements and addenda, read and electrical assemblies unless all solid-state device heat- follow the “Important Safety Instructions” on page 3 of this sinks are correctly installed. - Page 7 IC Removal/Replacement 4. Securely crimp each connection and solder it. Some Hitachi unitized chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and 5. Inspect (on the circuit board copper side) the solder joints then bent flat against the circuit foil.
- Page 8 2. Trace along the copper pattern from both wire sides of ensure the maintenance of reliability and safety standards, the pattern break and locate the nearest component contact your Hitachi personnel. directly connected to the affected copper pattern. At IC Connections 3.
- Page 9 DP25H/K SERVICING PRECAUTIONS NOTE: These components are affixed with glue. Be careful not to break or damage any foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose.
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Page 10: Technical Cautions
DP25H/K TECHNICAL CAUTIONS High Voltage limiter circuit operation check. 4. When the limiter circuit is operating properly, High 1. Turn off TV and connect jig as shown in Figure 2. Adjust Voltage will be less than 30.5 kV at 1.4mA when TV shuts jig fully counter-clockwise for minimum resistance. -
Page 11: Specifications
DP25H/K SPECIFICATIONS 43F300, 53F300 Models: Picture l-F Carrier 45.75 MHz Intermediate Frequency: Cathode-Ray Tube: Sound l-F Carrier 41.25 MHz 43F300 R=P16LXS00RFA B Color Sub Carrier 42.17 MHz G=P16LXS00HHA B B=P16LXS00BMB B Video Input: 1 Volt p-p, 75 Ohm 53F300 R=P16LXL00RFA U G=P16LXL00HHA U 1 Volt p-p, 75 ohm Video Output:... -
Page 12: Cautions When Connecting/Disconnecting The Hv Connector
DP25H/K CAUTIONS WHEN CONNECTING / DISCONNECTING THE HV CONNECTOR Perform the following when the HV connector (anode connector) is removed or inserted for CPT replacement, etc. Anode connector Deflection P.W.B. During Removal Roll out silicon cover from FBT’s contact area slowly. While turning the connector about 90 degrees following the arrow (0 position), push the connector PUSH... -
Page 13: General Information
DP25H/K GENERAL INFORMATION PULL POWER S-VIDEO -AUDIO- MAGIC FOCUS VOL- VOL+ INPUT MENU VIDEO L/MONO INPUT 5 EXIT SELECT CURSOR FRONT CONTROL PANEL ANT A INPUT 1 (MONO)/L AUDIO CONVERTER Y/VIDEO INPUT 2 (MONO)/L AUDIO ANT B (MONO)/L VIDEO S-VIDEO INPUT 3 (MONO)/L VIDEO S-VIDEO... -
Page 14: Remote Control
DP25H/K REMOTE CONTROL POWER CBL/SAT DVD/VCR SWAP PIP MODE FREEZE PIP CH MENU VIDEO SELECT LAST CH MUTE EXIT INFO VID3 VID4 VID1 VID2 ASPECT VIRTUAL HD VID5 CLU-4321UG CLU-4324UG BACK TO TABLE OF CONTENTS... -
Page 15: Customized Picture And Sound Adjustments
DP25H/K CUSTOMIZED PICTURE AND SOUND ADJUSTMENTS Video Select VIDEO to adjust picture settings and improve picture quality. Video Video Picture Mode Sports Audio Contrast 100% Ch. Manager Brightness CURSOR Locks Color Setup MENU Tint Move Sharpness Vertical Position Magic Focus Color System Advanced Settings Move... - Page 16 The Magic Focus button will not work when Adjustment Mode is set to Manual (see page 17). Your HITACHI Projection TV has three color projection tubes: one for red, one for green, one for blue. When mixed together in the proper proportion, the output of these three color tubes can produce any color.
- Page 17 DP25H/K CUSTOMIZED PICTURE AND SOUND ADJUSTMENTS Manual Convergence Adjustment Mode NOTES: 1. Please turn ON your television for at least 20 minutes before using this feature. 2. Auto Adjustment Mode is recommended. If convergence is still not acceptable, use the Manual Adjustment Mode. DO NOT press MAGIC FOCUS or use Auto Adjustment Mode after using Manual Adjustment Mode.
- Page 18 DP25H/K CUSTOMIZED PICTURE AND SOUND ADJUSTMENTS Audio Select AUDIO to adjust the TV to your preference and to improve the sound quality. Video Audio Treble Audio Bass Ch. Manager Balance Locks Sound Enhancement Setup CURSOR CURSOR Advanced Settings MENU Move SELECT Move Return...
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Page 19: Rear Panel Connection
DP25H/K REAR PANEL CONNECTIONS TYPICAL FULL-FEATURE SETUP Outside antenna or cable TV coaxial cable DVD Player 2-Way signal splitter HDTV Set-Top Box OUTPUT OUTPUT VCR #1 ANT A OUTPUT S-VIDEO INPUT 1 (MONO)/L AUDIO CONVERTER Y/VIDEO INPUT 2 (MONO)/L AUDIO ANT B (MONO)/L VIDEO S-VIDEO... - Page 20 DP25H/K REAR PANEL CONNECTIONS CONNECTING A STEREO SOURCE TO INPUT2~INPUT5 Connect the cable from the VIDEO OUT of the VCR or the laserdisc player to the INPUT (VIDEO) jack, as shown on the TV set below. Connect the cable from the AUDIO OUT R of the VCR or the laserdisc player to the INPUT (AUDIO/R) jack. Connect the cable from the AUDIO OUT L of the VCR or the laserdisc player to the INPUT (AUDIO/L) jack.
- Page 21 DP25H/K REAR PANEL CONNECTIONS CONNECTING AN S-VIDEO SOURCE TO INPUT 3, 4 AND 5 Connect the cable from the S-VIDEO OUT of the VCR or the laserdisc player to the INPUT (S-VIDEO) jack, as shown on the TV set below. Connect the cable from the AUDIO OUT R of the VCR or the laserdisc player to the INPUT (AUDIO/R) jack.
- Page 22 DP25H/K REAR PANEL CONNECTIONS CONNECTING A COMPONENT SOURCE TO INPUT 1 OR 2: Y-P B P R . Connect the cable from the Y OUT of the Laserdisc/DVD player or HDTV set top box to the INPUT (Y) jack, as shown on the TV set at right.
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Page 23: Display Picture Formats Service Adjustments
DP25H/K DISPLAY PICTURE FORMATS BACK TO TABLE OF CONTENTS... -
Page 24: Service Adjustments Display Picture Formats
DP25H/K... - Page 25 DP25H/K...
- Page 26 DP25H/K...
- Page 27 (480P) signal generator, as well as the usual NTSC (480i) signal generator. Hitachi recognizes that few companies offer HDTV or SDTV signal generators and that the cost of these generators is sometimes prohibitive. For this reason, we suggest the use of a set-top-box for HDTV and SDTV adjustments.
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Page 28: Assembled P.w.b Adjustment
DP25H/K 1. ASSEMBLED P.W.B. ADJUSTMENT 1.1 Service Menu Access Adjustment Procedure (1) Press and hold INPUT key on Control Panel and then press POWER key on control panel to access I adjustment mode. (2) Receive signal on main picture. (NTSC, SDTV or HDTV). Some menu pages have I C adjustments for SDTV and HDTV. - Page 29 DP25H/K BACK TO ADJUSTMENTS...
- Page 30 DP25H/K BACK TO ADJUSTMENTS...
- Page 31 DP25H/K 1.2 I C Parameter List Mode ON/OFF SURF NORMAL mode mode mode (ANT A only) MENU ADJUST MODE SUB CONT(TV-S) Press to select. OSD POSITION Press to set to the AFC/CLOCK TEST initial data of each MEMORY INIT device. I2COPEN IR BLASTER CH U/D, INPUT...
- Page 32 DP25H/K 1.2 I C Parameter List Cont. MENU CH U/D, INPUT DEVICE ADJUST MODE CH U/D, INPUT CH U/D, INPUT UPD64083 TA1340F Select FLEX Select UPD64083 TA1360N DEVICE ADJUST DEVICE ADJUST and press key. and press key. AUDIO DATA DATA FLEX TVCINE SYNCDET...
- Page 33 DP25H/K BACK TO ADJUSTMENTS...
- Page 34 DP25H/K BACK TO ADJUSTMENTS...
- Page 35 DP25H/K BACK TO ADJUSTMENTS...
- Page 36 DP25H/K BACK TO ADJUSTMENTS...
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- Page 39 DP25H/K BACK TO ADJUSTMENTS...
- Page 40 DP25H/K BACK TO ADJUSTMENTS...
- Page 41 DP25H/K BACK TO ADJUSTMENTS...
- Page 42 DP25H/K BACK TO ADJUSTMENTS...
- Page 43 DP25H/K BACK TO ADJUSTMENTS...
- Page 44 DP25H/K BACK TO ADJUSTMENTS...
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- Page 46 DP25H/K BACK TO ADJUSTMENTS...
- Page 47 DP25H/K BACK TO ADJUSTMENTS...
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Page 48: Comb Filter Operation Check
DP25H/K 1.3.4 Noise Reduction 1.2 Comb filter operation check (16) Select noise reduction mode using CURSOR Adjustment preparation and then press select button to set it ON and check (1) Receive the color bar signal at the regular tuning point. that the noise is reduced. -
Page 49: High Voltage Adjustment
DP25H/K Adjustment procedure Important: High Voltage adjustment should (1) Press and hold INPUT key on control panel and NOT be adjusted in field. This is then POWER ON to access I C adjustment adjusted at factory using precise mode. loads should (2) Choose “SERVICE”... -
Page 50: Horizontal Position Adjustment (Coarse)
DP25H/K (4) Turn the deflection yoke of R or B and set so that the 2.3 Horiontal Position Adjustment (Coarse) inclination of R or B light with respect to the green light is as shown below on the top and bottom sides. Adjustment preparation (1) DCU PHASE DATA SETTING should be (5) After raster inclination adjustment, fixing screw of DY... -
Page 51: Raster Position
DP25H/K 2.6 Raster position adjustment = NORMAL MODE Units = millimeters Adjustment preparation 43” 25.4mm = 1in. (1) The set can face east or west. (2) Input the single cross test signal. 53” (3) Set video conditions to factory preset. The 5th line Tolerance: ±... -
Page 52: Beam Form
DP25H/K Adjustment procedure 2.9 Beam Form adjustment (1) Loosen the fixing screw or wing nut on the lens Adjustment preparation cylinder so that the lens cylinder can be turned. (1) The beam alignment should have been (Be careful not to loosen too much). After completed. - Page 53 DP25H/K OPTICAL FOCUSING ADJUSTMENT GREEN (5) In case of R lens. Set the position where the chromatic aberration changes from red to CHASSIS DP25K DP25H crimson. As shown below, observe the vertical SCREEN SIZE 43” 53” bright line and adjust lens focus where the L1 and L2 crimson or red chromatic aberration slightly (PITCHES from CENTER)
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Page 54: Static Focus
DP25H/K NOTE: Checking point for the periphery of picture. NOTE: Setting to the center between purple and Checking point crimson is optimum. 2.12 Digital convergence adjustment OPTICAL FOCUSING ADJUSTMENT BLUE Note: 1. If replacing a PRT, DY, etc. perform auto- CHASSIS DP25K DP25H... -
Page 55: Magic Focus Character Set Up
DP25H/K 2.12.1 MAGIC FOCUS Character Set-Up TABLE 1. - DCU PARAMETER This instruction should be applied when a new DCU is being replaced. Parameter Normal Squeeze Adjustment Preparation ADJ. DISP (1) Receive NTSC RF or video signal. DEMO WAIT (2) With Power off, PRESS and HOLD the SERVICE INT. -
Page 56: Magic Focus Pattern Set Up
DP25H/K 2.12.2 MAGIC FOCUS Pattern Set-Up Pattern Position NOTE: (1) This instruction should be applied when a new DCU is being replaced. (2) This instruction shows how to set up the pattern position for MAGIC FOCUS. Adjustment Procedure (1) Receive NTSC RF or video signal. (2) With Power off, PRESS and HOLD the SERVICE ONLY button on DEF./CONV. -
Page 57: Convergence Jig Screen Specification
DP25H/K 2.12.3 Convergence Jig Screen Specifications 43” NORMAL (4:3) (P#H312251) 43” V. squeeze (16:9)...39.6” (P#H312252) BACK TO ADJUSTMENTS... - Page 58 DP25H/K 53” NORMAL (4:3) (P#H312253) 53” V. squeeze (16:9)...48.9” (P#H312254) BACK TO ADJUSTMENTS...
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Page 59: Raster Position Adjsutment
DP25H/K If only minor adjustments to convergence are Adjustment procedure Note: needed, the jig screen is not necessary. Use (1) Receive any NTSC signal. digital data stored in memory and one color as a (2) Start adjustment at the center of the screen. reference (red, green, or blue). -
Page 60: Magic Focus Initialize
DP25H/K 2.12.6 Magic Focus Initialize Digital Convergence Remote Control Adjustment Preparation (1) Receive any NTSC signal. (2) Digital convergence adjustment should have been completed. (3) Set is in DCU adjustment mode. Adjustment Procedure POWER (1) Press “PIP MODE” and then “PIP CH” to initialize ROM READ CBL/SAT DVD/VCR... -
Page 61: Blue Defocus
DP25H/K (6) BLUE defocus ADJ. should be finished. 2.13 Blue defocus adjustment (7) The vertical incident illumination on the screen Adjustment Preparation should be 20 Lux. or less. (1) Optical and electrical focus adjustment should (8) Picture Format is 16:9 Standard Mode. have been completed. - Page 62 DP25H/K WHITE BALANCE ADJUSTMENT FLOW CHART START Cut Off Adj. Blue defocus Adj. Sub bright Adj. Adj. High Light W/B Repeat two or three times, until no adjustment is needed Adj. Low Light W/B Sub bright Adj. Check If NOT OK Low Light W/B High Light W/B If OK...
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Page 63: Sub Brightness
DP25H/K 2.15 Sub brightness adjustment Adjustment preparation (1) Start adjustment after the power is turned ON for 20 minutes or more. (2) Receive the color bar signal. (3) The vertical incident illumination on the screen should be 20 lux or less. (Room should be dark). (4) Picture Formats is 16:9 Standard Mode. -
Page 64: Sub-Picture Signal Amplitude Adjustment
DP25H/K 2.16 Sub Picture Signal Amplitude Adjustment Adjustment preparation (1) Sub-brightness adjustment should be finished. (2) Start adjustment about 20 minutes after the power switch is turned on. (3) Condition should be as follows: Contrast : Max Brightness : Center (4) Press PIP button on R/C unit. -
Page 65: Horizontal Position
DP25H/K 2.17 Horizontal position adjustment 2.18 Scanning area check Adjustment preparation Checking condition (1) The screen face of set should be turned to East (1) Digital convergence adjustment should have or West. been completed. (2) VIDEO control should be set to Factory Preset (2) Receive the circle pattern signal. -
Page 66: Raster Distortion Check
DP25H/K 2.19 Raster distortion check Checking condition (1) Digital convergence adjustment should have been completed. (2) Receive the cross-hatch signal (internal signal of the set is acceptable). (3) Brightness/Contrast --- standard condition Contrast : max Other controls : center position (4) Check the raster distortion specification: Value shown in the table below or less. - Page 67 DP25H/K 5. Convergence Errors. If an error message or code appears while performing MAGIC FOCUS or initialize (PIP MODE, PIP CH in DCU service mode) follow this confirmation and repair method. 1. Turn on power and receive any signal. 2. Press service switch on DEF./CONV. board. 3.
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Page 68: Adjustment Point
DP25H/K 3. ADJUSTMENT POINT 3.1 CRT, cabinet locations 1. CENTERING MAGNET FOR RED PRT 2. CENTERING MAGNET FOR GREEN PRT 3. CENTERING MAGNET FOR BLUE PRT 4. 4-POLE MAGNET FOR BEAM FORM ADJUSTMENT 5. BEAM ALIGNMENT MAGNET 6. FOCUS PACK (Top Adjustments for Screen, Bottom for Focus) BACK TO ADJUSTMENTS... -
Page 69: Signal Block Assembly
DP25H/K SIGNAL BLOCK ASSEMBLY (Except DP25/21) BACK TO ADJUSTMENTS... -
Page 70: Main Chassis Deflection P.w.b
DP25H/K DEFLECTION P.W.B. BACK TO ADJUSTMENTS... -
Page 71: Power Supply P.w.b
DP25H/K POWER SUPPLY P.W.B. BACK TO ADJUSTMENTS... -
Page 72: Cpt (R)(G)(B), Focus Pack
DP25H/K CPT P.W.B. BACK TO ADJUSTMENTS... -
Page 73: Control P.w.b
DP25H/K CONTROL P.W.B. (DP25K) BACK TO ADJUSTMENTS... - Page 74 DP25H/K BACK TO ADJUSTMENTS...
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Page 75: Protection Circuit Block Diagram
DP25H/K DP2X Protection Circuit Block Diagram (Signal Power Supply) BACK TO TABLE OF CONTENTS... - Page 76 DP25H/K DP2X Protection Circuit Block Diagram (Deflection Power Supply)
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Page 77: Troubleshooting Flowchart
DP25H/K TROUBLE SHOOTING FLOWCHART 1. NO RASTER AND NO POWER (How to check LED’s Diagnosis) BACK TO TABLE OF CONTENTS... - Page 78 DP25H/K TROUBLE SHOOTING FLOWCHART...
- Page 79 DP25H/K TROUBLE SHOOTING FLOWCHART...
- Page 80 DP25H/K TROUBLE SHOOTING FLOWCHART 2. CONVERGENCE NOT CORRECTED (How to check)
- Page 81 DP25H/K...
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Page 82: Waveforms
DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. I001 P01 VHOLD1 I001 P13 XOUT I001 P21 OSD BLK I001 P22 HALFTONE I001 P23 M/S SYNC DET I001 P28 SCL2 DP25K DP25H BACK TO TABLE OF CONTENTS... - Page 83 DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. I001 P29 SCL1 I001 P30 SDA1 I001 P31 SDA2 I001 P32 OSD R I001 P33 OSD G I001 P34 OSD B DP25K DP25H...
- Page 84 DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. I001 P52 DATA/KEY OUT2 I001 P54 (FLASH) I001 P62 OSD HSYNC IN I001 P64 OSD VSYNC IN DP25K DP25H I005 P01 Y1 I005 P02 Y0 DP25K DP25H...
- Page 85 DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. I005 P03 Z1 I005 P04 Z I005 P05 Z0 I005 P12 X0 I005 P13 X1 I007 P01 Vcc DP25K DP25H DP25K DP25H...
- Page 86 DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. I401 P24 FBP IN I401 P26 H OUT I401 P27 VP OUT I401 P41 B OUT I401 P42 G OUT I401 P43 R OUT DP25K DP25H...
- Page 87 DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. I601 P01 (10X Reduced) V. OUT I601 P03 TRIGGER INPUT I601 P07 RAMP GEN. I701 P06 DP25K DP25H DP25K DP25H I901 P01 (100X Reduced) D I902 P03 (100X Reduced) D DP25K DP25H...
- Page 88 DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. IH01 P01 IH01 P04 GEN. DP25K DP25H IK04 P18 PCG or CYV+ IK05 P09 PCG or CYH+ DP25K DP25H IZ02 P03 SYNC-OUT IZ02 P15 VD-OUT DP25K DP25H...
- Page 89 DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. IZ02 P26 CW-OUT PPD2 P06 H. DRIVE DP25K DP25H PPD2 P08 H. BLK PPD2 P10 V.DRIVE PPD2 P12 V. BLK PPS2 P06 H. DRIVE DP25K DP25H...
- Page 90 DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. PPS2 P08 H. BLK PPS2 P10 V. DRIVE PPS2 P12 V. BLK PST1 P01 MAIN HSYNC DP25K DP25H PST1 P02 MAIN VSYNC PST2 P28 SUB. HSYNC DP25K DP25H...
- Page 91 DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. PST2 P29 SUB. VSYNC Q709 (10X Reduced) BASE DP25K DP25H Q709 COLLECTOR Q709 EMITTER Q777 (10X Reduced) BASE Q777 (100X Reduced) COLLECTOR DP25K DP25H...
- Page 92 DP25H/K WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. Q777 EMITTER Q851 COLLECTOR DP25K DP25H DP25K DP25H QH01 (100X Reduced) DRAIN QH02 COLLECTOR DP25K DP25H DP25K DP25H T902 P11 (100X Reduced) CONTROL +115V TH01 P05 (10X Reduced) 50P DP25K DP25H...
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Page 93: Dc Voltage Tables
DP25H/K DC VOLTAGE TABLES Signal 1 of 3 Symbol Pin No. Pin No. Pin No. Pin No. V(DC) V(DC) V(DC) V(DC) I001 Symbol Pin No. Symbol Pin No. Pin No. V(DC) V(DC) V(DC) I003 I002 Symbol Pin No. Pin No. Symbol Pin No. - Page 94 DP25H/K DC VOLTAGE TABLES Signal 1 of 3 (Cont.) Symbol Pin No. Pin No. Symbol Pin No. Pin No. V(DC) V(DC) V(DC) V(DC) PFH2 PFH1 Symbol Pin No. Pin No. V(DC) V(DC) PRST Symbol Pin No. Pin No. V(DC) V(DC) Symbol Pin No.
- Page 95 DP25H/K DC VOLTAGE TABLES Signal 2 of 3 Symbol Pin No. Pin No. Symbol Pin No. V(DC) V(DC) V(DC) IP51 IP52 Symbol Pin No. Pin No. V(DC) V(DC) Symbol Pin No. V(DC) IP53 U301 Symbol Pin No. Pin No. V(DC) V(DC) 33.9 U302...
- Page 96 DP25H/K DC VOLTAGE TABLES Signal 3 of 3 Symbol Pin No. Pin No. Symbol Pin No. Pin No. V(DC) V(DC) V(DC) V(DC) I402 Symbol Pin No. Pin No. V(DC) V(DC) I401 IA01 Symbol Pin No. Pin No. V(DC) V(DC) Symbol Pin No.
- Page 97 DP25H/K DC VOLTAGE TABLES Signal 3 of 3 (Cont.) Q401 Q420 Q447 Q402 Q421 Q448 Q403 Q422 Q450 Q404 Q426 QA03 Q405 Q428 QA04 Q406 Q429 QA05 Q407 Q431 QA06 Q408 Q433 QA07 Q409 Q434 QA08 Q410 Q438 QA09 Q411 Q439 QA10 -0.3...
- Page 98 DP25H/K DC VOLTAGE TABLES Terminal Symbol Pin No. Pin No. V(DC) V(DC) IV01 -5.0 Symbol Pin No. Pin No. Pin No. Pin No. V(DC) V(DC) V(DC) V(DC) IW01 -1.0 -2.5 Symbol Pin No. Pin No. Symbol Pin No. Pin No. V(DC) V(DC) V(DC)
- Page 99 DP25H/K DC VOLTAGE TABLES Terminal (Cont.) Symbol Pin No. Pin No. Symbol Pin No. Pin No. V(DC) V(DC) V(DC) V(DC) IX01 IX02 QV01 QV06 QV02 QV07 QV03 QV08 QV04 QV09 QV05 QV10...
- Page 100 DP25H/K DC VOLTAGE TABLES Terminal (Cont.) QW01 QX03 QZ01 QW02 QX04 QZ02 QW03 QX05 QZ03 QW04 QX09 QZ04 QW05 QX10 QZ05 QW06 QX11 QZ06 QW07 QX12 QZ07 QW08 QX13 QZ08 QW09 QX23 QZ09 QW10 QX24 QZ10 QW11 QX25 QZ14 QW12 QZ15 QW14 QZ18...
- Page 101 DP25H/K DC VOLTAGE TABLES Power Supply Symbol Pin No. Symbol Pin No. Symbol Pin No. V(DC) V(DC) V(DC) 143.6 I903 19.5 I902 167.5 I901 17.6 Symbol Pin No. V(DC) 12.0 I906 10.9 Symbol Pin No. Symbol Pin No. V(DC) V(DC) 17.4 I904 I905...
- Page 102 DP25H/K DC VOLTAGE TABLES Deflection Symbol Pin No. V(DC) 15.4 Q603 QN01 27.1 Q604 QN02 I601 92.4 Q701 116.1 QN03 91.5 27.5 Q703 17.2 QN04 Q706 QN05 Symbol Pin No. V(DC) Q709 12.7 QN06 I701 -0.1 Q710 Q777 89.4 Symbol Pin No.
- Page 103 DP25H/K DC VOLTAGE TABLES Convergence Symbol Pin No. Symbol Pin No. -6.9 V(DC) V(DC) QK01 -5.2 IK01 -7.5 QK02 Symbol Pin No. V(DC) QK03 -6.3 IK02 QK06 Symbol Pin No. V(DC) QK07 -30.4 -31.6 QK08 31.8 27.9 IK04 -27.8 -0.1 -27.9 -0.1 Symbol...
- Page 104 DP25H/K DC VOLTAGE TABLES Sensor Symbol Pin No. V(DC) QL10 QL11 PDS1 QL12 QL13 QL14 Symbol Pin No. V(DC) QL15 QL16 QL17 Symbol Pin No. V(DC) Symbol Pin No. V(DC)
- Page 105 DP25H/K DC VOLTAGE TABLES CPT/VM Q801 Q8A7 QEA1 Q802 Q8C1 QEA2 Q803 180.7 Q8C2 QEA3 180.6 195.6 Q804 QE01 QEA6 100.1 181.9 196.2 182.0 Q805 221.9 QE02 QEA7 99.7 181.8 199.2 Q812 QE03 QEA8 199.5 196.0 Q851 QE06 196.5 Q852 QE07 100.2 221.5...
- Page 106 DP25H/K DC VOLTAGE TABLES CPT/VM (Cont.) Symbol Pin No. Symbol Pin No. Symbol Pin No. V(DC) V(DC) V(DC) P801 P8A1 EGR1 Symbol Pin No. Symbol Pin No. Symbol Pin No. V(DC) V(DC) V(DC) 221.9 99.8 PVMB 99.7 PDC1 Symbol Pin No. V(DC) 100.1 PVMG...
- Page 107 DP25H/K DC VOLTAGE TABLES Control Symbol Pin No. V(DC) QM01 QM02 Symbol Pin No. V(DC) QM03 QM04 QM05 Symbol Pin No. V(DC)
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Page 108: Basic Circuit Diagram
DP25K BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Signal 1 of 3 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V). - Page 109 DP25K BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Signal 2 of 3 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 110 DP25K BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Signal 3 of 3 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 111 DP25K BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Terminal safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 112 DP25K BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Power Supply safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 113 DP25K BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Deflection safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. 32 33 All DC voltage to be measured with a tester (100k /V).
- Page 114 DP25K BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Convergence safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 115 DP25K BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Sensor safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 116 DP25K BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to CPT/VM safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 117 DP25K BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Control safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 118 DP25H BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Signal 1 of 3 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 119 DP25H BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Signal 2 of 3 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 120 DP25H BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Signal 3 of 3 safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 121 DP25H BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Terminal safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 122 DP25H BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Power Supply safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 123 DP25H BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Deflection safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 124 DP25H BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Convergence safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 125 DP25H BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Sensor safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 126 DP25H BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to CPT/VM safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
- Page 127 DP25H BASIC CIRCUIT DIAGRAM PRODUCT SAFETY NOTE: Components marked with a and shaded have special characteristics important to Control safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. All DC voltage to be measured with a tester (100k /V).
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Page 128: Printed Circuit Boards
DP25K/H PRINTED CIRCUIT BOARD Signal CS BACK TO TABLE OF CONTENTS... - Page 129 DP25K/H PRINTED CIRCUIT BOARD Signal SS...
- Page 130 DP25K/H PRINTED CIRCUIT BOARD Terminal CS...
- Page 131 DP25K/H PRINTED CIRCUIT BOARD Terminal SS...
- Page 132 DP25K/H PRINTED CIRCUIT BOARD DEFLECTION P.W.B. - PART SIDE...
- Page 133 DP25K/H PRINTED CIRCUIT BOARD DEFLECTION P.W.B. - PATTERN SIDE...
- Page 134 DP25K/H PRINTED CIRCUIT BOARD POWER/SENSOR/CABLE C/EXTEND 1/EXTEND 2 P.W.B. - PART SIDE...
- Page 135 DP25K/H PRINTED CIRCUIT BOARD POWER/SENSOR/CABLE C/EXTEND 1/EXTEND 2 P.W.B. - PATTERN SIDE...
- Page 136 DP25K/H PRINTED CIRCUIT BOARD CPT/CONTROL/IR/SUB IR P.W.B. - PART SIDE...
- Page 137 DP25K/H PRINTED CIRCUIT BOARD CPT/IR/SUB IR P.W.B. - PATTERN SIDE...
- Page 138 DP25K/H PRINTED CIRCUIT BOARD CONTROL PWB (DP25H)
- Page 139 DP25K/H PRINTED CIRCUIT BOARD CONTROL PWB (DP25H)
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Page 140: Block Diagram
DP25K/H BLOCK DIAGRAM BACK TO TABLE OF CONTENTS... -
Page 141: Wiring Diagram
DP25K/H WIRING DIAGRAM BACK TO TABLE OF CONTENTS... -
Page 142: Final Wiring Drawing
DP25K/H DP25H CHASSIS WIRING DRAWING NOTE:(1) Refer to the figure below about assembly of FOCUS PACK leads. SCREEN FOCUS FOCUS(R,G,B) FOCUS PACK SCREEN(R,G,B) UFPK R make double loop L make a loop NOTE:(2) MR,CR,MG,CG,CB MG,CG,L MB,DF1,DC1,L Connector "VMR","VMG" and "VMB" MB.CB should be connected before CPT P.W.B is inserted to PRT. - Page 143 DP25K/H DP25H CHASSIS WIRING DRAWING S1/S2 EAS0 NOTE: EAS1 EAS2 Detail of correct wiring dressing of Focus and Screen wires from CPT P.W.B. (Red, S0/S1/S2 Green & Blue) to avoid these wires touch with Resistors and Heat Sinks. to VM Coil FOCUS EAS7 EAS3...
- Page 144 DP25K/H DP25H CHASSIS WIRING DRAWING NOTE:(2) CPT SOCKET HOLDER ASSEMBLY.(R.G.B) CAUTIONS WHEN CONNECTING/DIS CONNECTING THE HV CONNECTOR CPT SOCKET HOLDER ASSEMBLY SHOULD (UFPK) FOCUS PACK ASY. BE FOLLOWED BELOW DIAG. During Removal 1. Roll out silicon cover from FBT's PAINT EACH COLOR contact area slowly.
- Page 145 DP25K/H DP25K CHASSIS WIRING DRAWING NOTE:(1) Refer to the figure below about assembly of FOCUS PACK leads. SCREEN FOCUS DF1 SF FOCUS(R,G,B) R make double loop FOCUS PACK SCREEN(R,G,B) make double loop UFPK DF1,DC1,MR,CR MG,CG,L R,L,MG,CG,MB,CB NOTE:(2) DF1,MR,CR MB,CB CG,L,DC1 Connector "VMR","VMG"...
- Page 146 DP25K/H DP25K CHASSIS WIRING DRAWING S1/S2 EAS0 EAS1 EAS2 NOTE: Detail of correct wiring dressing of Focus and S0/S1/S2 Screen wires from CPT P.W.B. (Red,Green & Blue) to avoid these wires touch with Resistors and Heat Sinks. to VM Coil FOCUS EAS7 EAS3...
- Page 147 DP25K/H DP25K CHASSIS WIRING DRAWING NOTE:(2) CPT SOCKET HOLDER ASSEMBLY.(R.G.B) CAUTIONS WHEN CONNECTING/DIS CONNECTING THE HV CONNECTOR CPT SOCKET HOLDER ASSEMBLY SHOULD (UFPK) FOCUS PACK ASY. BE FOLLOWED BELOW DIAG. During Removal 1. Roll out silicon cover from FBT's PAINT EACH COLOR contact area slowly.
- Page 148 DP25K/H DP25K CHASSIS WIRING DRAWING S1,S2 EAS2 EAS0 EAS1 S0,S1,S2 43F300 Sensors Wire Dress *Follow Drawing and be sure wires are not loose EAS7 EAS3 *Follow Drawing and be sure wires are not loose S0,S1 S2,S7 EAS4 EAS5 EAS6 S3,S4 S3,S4,S5 S0,S1,S2,S3 S4,S5,S6,S7...
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Page 149: Exploded View
DP25H/K EXPLODED VIEW 43F300 Core Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts NOTES: list for the correct part number. The circled numbers correspond to the parts list shown on pages 144, 145 and 147. BACK TO TABLE OF CONTENTS... - Page 150 DP25H/K EXPLODED VIEW 43F300 Front Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts NOTES: list for the correct part number. The circled numbers correspond to the parts list shown on pages 144, 145 and 147.
- Page 151 DP25H/K EXPLODED VIEW 53F300 Core Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts NOTES: list for the correct part number. The circled numbers correspond to the parts list shown on pages 144, 145 and 147.
- Page 152 DP25H/K EXPLODED VIEW 53F300 Front Some parts may appear different than those shown in the exploded view. When ordering, refer to the replacement parts NOTES: list for the correct part number. The circled numbers correspond to the parts list shown on pages 146 and 148.
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Page 153: Exploded View Parts List
DP25H/K EXPLODED VIEW PARTS LIST Model 43F300 Part No Description Quantity QD08993 43" BACK COVER KS02025 00 43MODELS MIRROR GLASS NA47451 H. MIRROR METAL 43" SECC20/20E NA47441 CENTRAL METAL RIGHT SECC20/20E NA47442 SENTRAL METAL LEFT SECC20/20E NA47171 H. SCREEN METAL NA47181 V. - Page 154 DP25H/K EXPLODED VIEW PARTS LIST model 53F300 Part No Description Quantity Not Avail. CONTROL PANEL ASSY 53F300 Not Avail. 53F300 CABINET ASSY KS05783 1ST MIRROR 53" 33020100 BARRIER BOARD ASSY 53F300 55020075 FRONT BOARD 53" Not Avail. LOWER REAR BOARD 53F300 PH08914 53F300 SPEAKER GRILL ASSY KR02842...
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Page 155: Replacement Parts List
DP25H/K REPLACEMENT PARTS LIST PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. ABBREVIATIONS Capacitors: Resistors:... - Page 156 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 157 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 158 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 159 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 160 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 161 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 162 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 163 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 164 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 165 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 166 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 167 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 168 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 169 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 170 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 171 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 172 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 173 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
- Page 174 DP25H/K PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART PART...
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Page 175: Quick Reference Parts List
DP25H/K QUICK REFERENCE PARTS LIST CIRC. # PART NO. DESCRIPTION FUNCTION PWB asy SG DP25H DP25K 1 I001 CK37374U M306V7MG-XXXFP TV u-com (MASK) Signal 2 I002 CK37051R BD4729G-TR RESET IC Signal 3 I003 CK35894R CAT24WC32J1 E2PROM Signal 4 I005 CK31992R BU4053BCF-E2 CCD SELECTOR Signal... -
Page 176: Disassembly Instructions
DP25H/K The following instructions are for models with a Light Box design. This new cabinet design will enable servicers to remove the Light Box assembly, with out the need to take a complete PTV out for service. Disassembly Instructions for Screen Frame Assemblies and Light Box STEP INSTRUCTIONS IMAGE... - Page 177 DP25H/K STEP INSTRUCTIONS IMAGE Remove the screws on the left and right corners of the screen frame (4 screws on each side). The lower rear board needs to be removed. Remove 14 screws all around the lower rear board. Remove the 16 screws all around the back cover. The image to the right shows the back of the right side of the back cover.
- Page 178 DP25H/K STEP INSTRUCTIONS IMAGE Look for the sensor board located on the top right corner. Remove the sensor interface connections. Remove the 4 screws (2 on each corner) that partially hold the screen frame assembly. This image shows the 2 screws on the right corner near the sensor board.
- Page 179 DP25H/K STEP INSTRUCTIONS IMAGE Remove the 6 screws that hold the light box. (3 screws on each side, the picture is taken from the front.) Move to the chassis area on the back of the PTV. Remove the 2 screws on the left side and the 4 screws on the right side.
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Page 180: Pwb Parts List Added
43F300 / DP25K CS00592 CS00622 FLEX CONVERTER JT23804 SIGNAL PWB JT23814 TERMINAL PWB JT23824 DEFL / CONV PWB JT23834 POWER PWB JT23844 CPT PWB KR02841 SCREEN ASSEMBLY UE21694 DP25K CHASSIS UE21744 RED CRT UE21745 GREEN CRT UE21746 BLUE CRT CH 1... - Page 181 53F300 / DP25H CS00592 CS00642 FLEX CONVERTER JT23805 SIGNAL PWB JT23815 TERMINAL PWB JT23835 POWER SUPPLY PWB JT23845 CPT PWB JT23961 CONTROL PWB JT24135 DEF.CONV. PWB KR02842 SCREEN ASSEMBLY UE20751 RED CRT UE20752 GREEN CRT UE20753 BLUE CRT UE21695 DP25H CHASSIS CH 1...
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