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Pioneer PDU-50WX2 Service Manual

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PLASMA DISPLAY

PDU-50WX2
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
PDU-50WX2
TUCYV
ΒΆ This service manual should be used together with the following manual(s).
Model No.
PDU-50WX2
CONTENTS
1. SAFETY INFORMATION ....................................... 3
(For SCHEMATIC DIAGRAM, refer to ARP3115)
4. PCB CONNECTION DIAGRAM ... Refer to ARP3115
5. PCB PARTS LIST ................................................ 36
6. ADJUSTMENT ..................................................... 45
For details, refer to "Important symbols for good services" on the next page.
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
c
PIONEER CORPORATION 2002
Power Requirement
AC100 - 240V
Order No.
ARP3115
SCHEMATIC DIAGRAM and PCB DIAGRAM
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
Remarks
7. GENERAL INFORMATION ................................ 68
7.1 DIAGNOSIS .................................................. 68
7.1.1 PCB LOCATION ................................... 68
7.1.3 DISASSEMBLY ..................................... 75
7.2 IC INFORMATION ........................................ 77
T - ZZK JAN. 2002 Printed in Japan
ORDER NO.
ARP3114
Remarks

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   Summary of Contents for Pioneer PDU-50WX2

  • Page 1: Table Of Contents

    PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2002 T –...
  • Page 2 PDU-50WX2 [ Important symbols for good services ] In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them: 1. Product safety You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.
  • Page 3: Safety Information

    PDU-50WX2 1. SAFETY INFORMATION 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 4: Product Safety Notice

    Leakage Current Cold Check With the AC plug removed from an AC power source, place a Many electrical and mechanical parts in PIONEER set have special jumper across the two plug prongs. Turn the AC power switch on. safety related characteristics. These are often not evident from...
  • Page 5 PDU-50WX2 1.3 CHARGED SECTION AND HIGH VOLTAGE GENERATING POINT 7 Charged Section 7 High Voltage Generating Point The places where the commercial AC power is used without The places where voltage is 100V or more except for the charged passing through the power supply transformer.
  • Page 6: Exploded Views And Parts List

    PDU-50WX2 2. EXPLODED VIEWS AND PARTS LIST NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part.
  • Page 7 PDU-50WX2 2.2 UNDER LAYER SECTION (1) Upper side Refer to "2.11 PANEL CHASSIS ASSY (AWU1037)". • UNDER LAYER SECTION (1) PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Wire Saddle AEC1904 CLAMP A Assy AWZ6650 CLAMP B Assy...
  • Page 8 PDU-50WX2 2.3 UNDER LAYER SECTION (2) 11 11 5 or 6 Upper side 7 or 8 11 11...
  • Page 9 PDU-50WX2 • UNDER LAYER SECTION (2) PARTS LIST Mark No. Description Part No. ADR CONNECT A Assy AWZ6626 ADR CONNECT B Assy AWZ6627 ADR CONNECT C Assy AWZ6628 ADR CONNECT D Assy AWZ6629 BRIDGE A Assy AWZ6620 BRIDGE B Assy...
  • Page 10 PDU-50WX2 2.4 UNDER LAYER SECTION (3) Upper side 7 (Upper Side) 8 (Bottom Side) Upper side...
  • Page 11 PDU-50WX2 • UNDER LAYER SECTION (3) PARTS LIST Mark No. Description Part No. Mark No. Description Part No. J202 Flexible Flat Cable ADD1172 DIGITAL VIDEO Assy AWV1937 • • • • • J209 Flexible Flat Cable ADD1191 J204 Flexible Flat Cable...
  • Page 12 PDU-50WX2 2.5 UNDER LAYER SECTION (4) Upper side Upper side...
  • Page 13 PDU-50WX2 • UNDER LAYER SECTION (4) PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Scan IC Spring (L) ABK1026 DIGITAL VIDEO Assy AWV1937 Scan IC Spring (R) ABK1027 Y DRIVE Assy AWZ6645 Scan Insulation Sheet AMR3271...
  • Page 14 PDU-50WX2 2.6 UNDER LAYER SECTION (5) 1 22 16 29 23 SA1 SA2 SA2 SA1 30 22...
  • Page 15 PDU-50WX2 • UNDER LAYER SECTION (5) PARTS LIST Mark No. Description Part No. Mark No. Description Part No. ADR CONNECT A Assy AWZ6626 • • • • • ADR CONNECT B Assy AWZ6627 Flat Clamp AEC1879 ADR CONNECT C Assy...
  • Page 16 PDU-50WX2 2.7 UPPER LAYER SECTION (1) J101 J201 J107 J202 J104...
  • Page 17 PDU-50WX2 • UPPER LAYER SECTION (1) PARTS LIST Mark No. Description Part No. INTERFACE Assy AWZ6665 J201 Flexible Flat Cable ADD1172 J202 Flexible Flat Cable ADD1172 J107 12P Housing Wire ADX2714 J104 Wire WF ADX2712 Sub Frame R ANG2500 Sub Frame L...
  • Page 18 PDU-50WX2 2.8 UPPER LAYER SECTION (2) Note : This product does not include this Terminal Panel. J105 J101 J120 J103 J104 J102 100V SW101 200V...
  • Page 19 PDU-50WX2 • UPPER LAYER SECTION (2) PARTS LIST Mark No. Description Part No. SW Power Supply Module AXY1055 • • • • • Fuse (FU101 : 10A) AEK1071 J105 Housing Wire ADX2715 Screw AMZ30P060FZK Nyron Binder AEC-093...
  • Page 20: Front Section

    PDU-50WX2 2.9 FRONT SECTION • FRONT SECTION PARTS LIST Mark No. Description Part No. Panel Cushion H AED1198 Panel Cushion V AED1199 Front Protect Panel Assy AMR3304 Panel Holder 50 ANG2508 Screw ABZ30P050FZK...
  • Page 21 PDU-50WX2 2.10 PDP SERVICE ASSY 503 (AWU1040) PDP Service Assy 503 (AWU1040) consists of the following parts. • PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Panel Chassis (50) Assy AWU1037 Insullation Sheet AMR3263 Front Chassis V...
  • Page 22 PDU-50WX2 Caution in Replacement of Panel Chassis (50) Assy (AWU1040) Please order the Panel Chassis (50) Assy (AWU1040) when replacing the Chassis block. Panel Chassis (50) Assy is all common use parts of for business, public use and module. Supply it by the state that installed Circuit Board Spacer (AEC1872) and Wire Saddle (AEC1878) as follows.
  • Page 23 PDU-50WX2...
  • Page 24: Block Diagram And Schematic Diagram

    PDU-50WX2 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER CLK/LE VADR2 CLK/LE VADR2 IC6601 VADR2 IC6501 VADR2 ADDRESS CONNECT B BUFFER IC...
  • Page 25: Block Diagram

    PDU-50WX2 3.1 BLOCK DIAGRAM 3.1.1 OVERALL BLOCK DIAGRAM DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER CLK/LE CLK/LE VADR2 VADR2 VADR2 VADR2 IC6801 IC6901 BUFFER IC BUFFER IC...
  • Page 26 PDU-50WX2 3.1.2 DIGITAL VIDEO ASSY INTERFACE DIGITAL VIDEO ASSY 3.3V 2.5V ASSY 3.3V IC1301 (IC31 L) (PD6358) Address Data RGB 2 phase 10 bit DRAM ADR CONNECT A - D Assy (Left section) Line Buffer IC1401 (IC31 R) (PD6358) Address Data...
  • Page 27 PDU-50WX2 3.1.3 X DRIVE ASSY...
  • Page 28 PDU-50WX2 3.1.4 Y DRIVE ASSY IC5V IC2504 Photo Coupler TC74ACT540FT Photo Coupler Photo Coupler OC2-1 To SCAN ASSY Photo Coupler (Lower) Photo Coupler Photo Coupler Photo Coupler Photo Coupler IC2501,IC2502, IC2001 IC2505,IC2510, TC74ACT541FT IC2512,IC2513, IC2514,IC2525, HCPL-M611 To SCAN ASSY (Upper)
  • Page 29 PDU-50WX2 VSUS Q2204 YPR-U1 YPR-U2 Q2205 IC2203 TND301S K2203 SUSOUT A 37-40 IC2212 TND301S 29,30 Q2219 K2220 PSUS Q2218 Q2216 Q2215 Y CONNECTOR IC2213 ASS'Y TND301S Vsus Q2221 Q2220 K2212 SUSOUT B 37-40 IC2216 TND301S 29,30 Q2228 Q2217 Q2226 Q2227...
  • Page 30 PDU-50WX2 3.1.5 SUB ADDRESS A and B ASSYS +60V Current - Voltage Over Current DET. Block Convert Block ADRGND CN8801 R8801 - R8805 Q8801 H : V MID CLAMP OFF L : V MID CLAMP ON ADR Output P.D. Output Block...
  • Page 31 PDU-50WX2 3.1.6 RESONANCE ASSY +60V +60V +60V ICP-S1, 0 +60V CN6702 IC6704 C6703 - C6708 Address Resonance Output Block ADROUT ADRGND ADR B ADR-B ADR-B Pre-Drive VADR Drive C6720 Q6706 DGND Q6707 +12V IC6701 Q6701, Q6704 ADR U ADR-B C6721...
  • Page 32: Power Supply Module

    PDU-50WX2 3.1.7 ADR CONNECT A, B, C and D ASSYS Address Module Address Module Address Module Address Module Address Module (TCP) (TCP) (TCP) (TCP) (TCP) ADR OUT BRIDGE ASSY ADR PD OPEN PD Q6502, Q6503 LBLK HBLK DATA_R DATA_R DATA_R...
  • Page 33 PDU-50WX2 3.2 WAVEFORMS DIGITAL VIDEO ASSY K1327 (VDI) K1326 (DEI) K1308 (VDRB) K1328 (HDI) K1333 (VCLKL) IC1501 - pin 15 (LBLK) V: 2V/div. H: 4msec/div. V: 2V/div. H: 4µsec/div. V: 2V/div. H: 2msec/div. K1327 (VDI) K1326 (DEI) K1308 (VDRB) K1328 (HDI)
  • Page 34 PDU-50WX2 ADR CONNECT A - D SUB ADDRESS A, B RESONANCE ASSY ASSY ASSY CH1 : IC6702 - pin 2 CH1 : IC6501 - pin 8 (CLK) CH1 : IC8801 - pin 3 CH2 : IC6701 - pin 2 CH2 : IC6501 - pin 6 (LE)
  • Page 35 PDU-50WX2 Sustain Waveforms Drive Pulse Waveforms Sustain Waveform (1 field) Sustain Waveform (1 sub-field) Y Drive Pulse Control Waveform (1 field) ch 1 : K3107 (X.PSUS) - K3201 (SUSGND) ch 1 : K3107 (X.PSUS) - K3201 (SUSGND) V: 100V/div. H: 2msec/div.
  • Page 36: Pcb Parts List

    PDU-50WX2 Mark No. Description Part No. Mark No. Description Part No. 5. PCB PARTS LIST NOTES : ÷ Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List. ÷ The mark found on some component parts indicates the importance of the safety factor of the part.
  • Page 37 PDU-50WX2 Mark No. Description Part No. Mark No. Description Part No. C6026, C6027, C6038, C6040, C6044 CCSRCH151J50 CAPACITORS C6048, C6054, C6058, C6059 CCSRCH151J50 C6441, C6442 (0.1µF/100V) ACG1098 C6007, C6008, C6014, C6019, C6025 CCSRCH181J50 C6028, C6035, C6039, C6046, C6047 CCSRCH181J50 OTHERS...
  • Page 38 PDU-50WX2 Mark No. Description Part No. Mark No. Description Part No. Q6802 2SC2712 OTHERS Q6803 2SK209 CN6491 PH CONNECTOR B4B-PH-SM3 D6801 DA227 COILS AND FILTERS ADR CONNECT A ASSY L6801, L6802 (22µH/0.11A) ATH1081 SEMICONDUCTORS CAPACITORS IC6501 TC74VHC541FT Q6502 2SC2712 C6811–C6820 (330pF/100V)
  • Page 39 PDU-50WX2 Mark No. Description Part No. Mark No. Description Part No. Q3124–Q3127 FS16VS-9 COILS AND FILTERS Q3123 FS2AS-14A L6704 CHOKE COIL ATH1111 Q3122, Q3128 FS7VS-14A Q3102, Q3118 HN1B04FU CAPACITORS D3119 1SS184 C6716, C6718 (1.00F) ACE1159 D3108, D3124, D3125, D3130, D3133 1SS355 C6720, C6721 (0.01µF/100V)
  • Page 40 PDU-50WX2 Mark No. Description Part No. Mark No. Description Part No. [X DD CON BLOCK] RESISTORS R2015–R2018 RAB4C0R0J SEMICONDUCTORS R2001, R2002, R2005, R2011 RAB4C470J IC3712 AN1431M R2037, R2038 RAB4C470J IC3701 MIP161 R2035, R2036, R2039, R2040 RAB4C472J IC3702–IC3704 TLP181(GR) Other Resistors...
  • Page 41 PDU-50WX2 Mark No. Description Part No. Mark No. Description Part No. C2202 CEHAT221M25 [Y DRIVE DD-CON BLOCK] C2232 CEHAT331M2A SEMICONDUCTORS C2218, C2224, C2229 CEHAT470M16 C2212, C2214 CEHAT470M25 IC2715–IC2717 AN1431M C2201, C2203, C2205, C2208, C2213 CKSRYF104Z50 IC2709 HCNR201 IC2708, IC2710, IC2718...
  • Page 42 PDU-50WX2 Mark No. Description Part No. Mark No. Description Part No. R2783 RS1/16S4701F SUB ADDRESS B ASSY R2734, R2736 RS1/16S4702F R2779 RS1/16S5102F SEMICONDUCTORS R2773 RS1/16S5601F IC8901, IC8902, IC8904 M5223AFP R2784 RS1/16S5602F IC8903 TC74VHC74FT Q8901, Q8902 2SA1163 R2782 RS1/16S6801F Q8903–Q8905, Q8908 2SC2712 R2744–R2746, R2748–R2753...
  • Page 43 PDU-50WX2 Mark No. Description Part No. Mark No. Description Part No. OTHERS RESISTORS CN1003, CN1004 50P CONNECTOR AKM1201 R1209, R1214, R1245 RAB4C101J K1001 TEST PIN AKX9002 R1242 RAB4C103J CN1001 PH CONNECTOR B12B-PH-SM3 R1207 RAB4C123J R1213, R1216 RAB4C473J Other Resistors RS1/16S...
  • Page 44 PDU-50WX2 Mark No. Description Part No. Mark No. Description Part No. CN1503, CN1603 PH CONNECTOR B8B-PH-SM3 RESISTORS CN1301 8P PLUG CKS3130 R4007, R4030 RAB4C101J CN1702 30P CONNECTOR KF050HA30L R4073–R4087 RAB4C152J R4034–R4048 RAB4C220J R4011–R4025 RAB4C470J [D-D CONVERTER BLOCK] R4055–R4069 RAB4C681J SEMICONDUCTORS...
  • Page 45: Adjustment

    PDU-50WX2 6. ADJUSTMENT • PDU-50WX2 does not have a microcomputer for remote control communication. Therefore perform all adjustment with the RS-232C command. (Baudrate 38400) • Use the remote control receiver unit for 50WX1 or the new jig for 50WX2 with the RS-232C communication.
  • Page 46 PDU-50WX2 Connector Pin Arrangement List of use connector, housing and recommended connection cable Recommended Ref No. PCB Connector Housing Contact Lead-wire CN4007 FX2B-100PA-1.27DSL FX2B-100SA-1.27R AWG#28 Digital signal input CN4010 S14B-XASK-1 XAP-14V-1 SXA-001T-P0.6 AWG#24 Sync. signal input CN4005 S10B-XASK-1 XAP-10V-1 SXA-001T-P0.6...
  • Page 47 PDU-50WX2 6.1 ADJUSTMENT ITEM TABLE RS-232C Command Adjustment Range Name (OFFSET Reference Value) Adjustment Read-out PANEL R-HIGH 0 - 255 [255] PANEL G-HIGH 0 - 255 [255] PANEL B-HIGH 0 - 255 [255] PANEL R-LOW 0 - 999 [512] PANEL G-LOW...
  • Page 48 PDU-50WX2 MASK DISPLAY Command Function Mask Off Pattern 1 (Ramp) Pattern 2 (Color-bar) Pattern 3 (Slanting line) Pattern 4 (For W/B Measurement) Pattern 5 (For W/B adjustment) Pattern 6 (For W/B Peak Measurement) Pattern 7 (For Peak Measurement) Pattern 8 (Reservation)
  • Page 49 PDU-50WX2 DIGITAL INPUT SPECIFICATIONS Input Signal Correspondence External control ... ? : Validity / –: Invalidity (for fixing) Input Signal or Vertical Horizontal Signal Display on the Frequency Frequency Brightness Recommended Mode Panel (Dot ∗ Line) MUTE Dither switch fv (Hz)
  • Page 50 PDU-50WX2 6.2 ADJUSTMENT REQUIRED WHEN THE SET IS REPAIRED OR REPLACED Y DRIVE Assy INTERFACE Assy When repaired When repaired 1. VOFS/VH/IC5V voltage adjustment No adjustment required. 2. Timing adjustment of pulse module When replaced When replaced No adjustment required.
  • Page 51 PDU-50WX2 6.3 MAIN UNIT ADJUSTMENT VOFS/VH/IC5V Voltage Adjustment Adjusting Point Input Signal Adjusting Method VOFS (Offset voltage) adjustment Method 1 1. Write down a adjustment value of V-OFFSET mode with the GAJ of RS-232C command. 2. Set this adjustment value to center (128). → Transmits a VOF 128 command.
  • Page 52 PDU-50WX2 Sustain Pulse Waveform Adjustment Adjusting Point Adjusting Method Input Signal X-SUS-B, Y-SUS-B Adjustment White 100% Set to the specified value with XSB and YSB of RS-232C command. (Refer to "Timing adjustment of control signal of X and Y Drive Assys".)
  • Page 53 PDU-50WX2 Timing Adjustment of X and Y DRIVE Assys Control Signal Purpose • Pulse module loads in DRIVE Assy as one of heat measures of DRIVE Assy. Adjust the drive timing of the pulse module driving parallel with VR. • Pulse module has each peculiar delay time. Readjustment is necessary when replaced the pulse module in the X and Y DRIVE Assys.
  • Page 54 PDU-50WX2 Measuring Waveform of Pulse Module Timing Adjustment Timing adjustment of the pulse module control signal adjusts with the sustain pulse of eighth pulse (X DRIVE) and the ninth pulse (Y DRIVE) from the back of 6SF. Measuring point of waveform...
  • Page 55 PDU-50WX2 SUS-D Adjustment (Y DRIVE) SUS-U Adjustment (Y DRIVE) 1ms/div 1ms/div Magnify 6SF block Magnify 6SF block 5µs/div 5µs/div Magnification Magnification 1ms/div 1ms/div Magnify 6SF block Magnify 6SF block 500ns/div 200ns/div Magnification Magnification 1ms/div 1ms/div Magnify 6SF block Magnify 6SF block...
  • Page 56 PDU-50WX2 SUS-B Ground Timing Adjustment It is necessary to readjust this adjustment when replaced the X or Y DRIVE Assy and the pulse module. Measurement point and method Measurement point of waveform of X and Y DRIVE Assy in timing adjustment is test pin of SUSOUT of the pulse module of bottom of the main unit.
  • Page 57 PDU-50WX2 Y DRIVE Assy X DRIVE Assy K2720 K2716 K3708 K3213 (PSUS) (VH) (VRN_OVP) (1/2VSUS) K2218 K3214 K2215 K2217 K3702 K2717 K3707 (1/2 VSUS) (SUSGND) (SUS_B) (SUS_U) (SUS. GND) K3706 (VH CONT) (VRN) (X DC-DC PD) K2214 (SUS_G) K2216 VR3701...
  • Page 58 PDU-50WX2 6.4 COMMAND 6.4.1 RS-232C COMMAND (for adjustment) Ο Ο − − − − • , • • − − i n i Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο − − − − • 2 •...
  • Page 59 PDU-50WX2 6.4.2 RS-232C COMMAND (for setting) − − − − − − − − − − − − − − − − − − − − − − − − − − Ο − i t l − − −...
  • Page 60 PDU-50WX2 − − v i t v i t − − v i t v i t − − − − − − − − Ο − − − − − − − − − − − − − −...
  • Page 61: Command Description

    PDU-50WX2 6.4.3 GET Command Command Description Command Function Output data of an electronic VR adjustment value and a drive system adjustment value Output data to be related to white balance adjustment of the panel Output data such as version information, hour meter and pulse meter...
  • Page 62 PDU-50WX2 GS1: Output data such as version information, hour meter and pulse meter • Output it according to transmission order and size of the table below. Order Data Contents Size Remarks Display information 3 byte See below Module microcomputer model number...
  • Page 63: Adjustment Function

    PDU-50WX2 6.4.4 Adjustment with the RS-232C Command RS-232C Communication TXD0 (35 pin: TXD0) Terminal RXD0 (36 pin: RXD0) REQ_MD (38 pin: P60) TXD0 : Data output Terminal RXD0 : Data input Specifications REQ_MD : H/L output Control Main microcomputer • Communication between main microcomputer and module microcomputer...
  • Page 64 PDU-50WX2 Electronic VR Reference Value Setting Control EXPANDER, EEPROM Memory Adjustment value Set the reference value for the electronic VR adjustment that considered unevenness of the panel performance. Vsus reference value adjustment : VSU [Numeric data (3 byte, 000 - 255)]...
  • Page 65 PDU-50WX2 Electric Power Upper Limit Adjustment Control Panel microcomputer, EEPROM Memory Adjustment value, Mode setting Adjust the upper limit of power consumption. 1 Mode setting of the electric power upper limit Set to the reference mode : AB0 Set to the offset mode (1/2/3) : AB1/AB2/AB3 •...
  • Page 66: White Balance Adjustment

    PDU-50WX2 White Balance Adjustment Control Panel microcomputer, EEPROM Memory Adjustment value, Mode setting Adjust the white balance of the panel. 1 Setting of the white balance mode Command Set to the reference mode : PT0 Set to the offset mode (1/2/3) : PT1/PT2/PT3 Operation after command reception •...
  • Page 67 PDU-50WX2 3 RGB each color lowlight adjustment Command Red lowlight adjustment : PRL [Numeric data (3 byte, 000 - 999)] Green lowlight adjustment : PGL [Numeric data (3 byte, 000 - 999)] Blue lowlight adjustment : PBL [Numeric data (3 byte, 000 - 999)] Operation after command reception •...
  • Page 68: General Information

    PDU-50WX2 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 PCB LOCATION CLAMP A Assy ADR CONNECT A Assy DIGITAL VIDEO Assy BRIDGE A Assy ADR CONNECT B Assy SENSOR SUB ADDRESS A Assy Assy RESONANCE Assy SCAN (A) Assy ADR CONNECT C...
  • Page 69: Shut Down/power Down Diagnosis By Led Display

    PDU-50WX2 7.1.2 SHUT DOWN/POWER DOWN DIAGNOSIS BY LED DISPLAY When internal circuit abnormality and other operation abnormality occurred from this unit, self-diagnose display function by STANDBY/ON (LED) indicator is loaded. Each NG point by LED blinking and a PD (power down) point are as follows.
  • Page 70 PDU-50WX2 Block Diagram of Shut Down Signal System DIGITAL VIDEO ASSY IC1101 IC1191 Panel UCOM Panel UCOM THERMAL SENSOR external Flash ROM ASSY IC8351 *PU_CE BUSY Thermal REQ_PU Sensor 1 TEMP1 Y DRIVE ASSY INTERFACE ASSY IC1207 Module UCOM DEW_DET...
  • Page 71 PDU-50WX2 Block Diagram of Power Down Signal System...
  • Page 72 PDU-50WX2 Kind and function of the various protection circuit (P.D. circuit) Red LED Kind of P.D. Assy Name OSD Display Number of Remarks Function Circuit Blinks Y-DRV VCP OCP P.D. by VCP overcurrent VOFS OVP P.D. by VOFS overvoltage VOFS UVP P.D.
  • Page 73 PDU-50WX2...
  • Page 74 100V AC, and OFF when the switch is set to do not diagnose or repair the module. 200V AC). Similarly, the switches and the semifixed VRs inside the power- supply module must not be adjusted without a special reason. Setting: For PDU-50WX2, it is set to 200V.
  • Page 75: Disassembly

    PDU-50WX2 7.1.3 DISASSEMBLY SW Power Supply Module Insert it and reduce the Clamper. Remove four screws. Insert the SW Power Supply Module into the slit Remove the SW Power Supply Module. of Sub Frame L and R. SW Power Supply...
  • Page 76 PDU-50WX2 DIGITAL VIDEO Assy Y DRIVE, SCAN (A), (B) Assy Remove the Y DRIVE Assy. Remove the SW Power Supply Module. (Connector, Screws × 8) (Connector, Screws × 4) Remove the DIGITAL VIDEO Assy. (Connector, Circuit Board Spacer × 6) Y DRIVE Assy ×2...
  • Page 77: Ic Information

    PDU-50WX2 7.2 IC INFORMATION ¶ The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. • List of IC SN755860PJ, GAL22V10, M30624FGAFP, PD6358A, PST9246N, FS781BZB, STK795-460 SN755860PJ (SCAN A ASSY : IC6201 - IC6206) SN755860PJ (SCAN B ASSY : IC6001 - IC6006) •...
  • Page 78 PDU-50WX2 • Block Diagram • Pin Function...
  • Page 79 PDU-50WX2 HD64F2328VF (DIGITAL VIDEO ASSY : IC1101) • Panel Microcomputer • Pin Function t i s...
  • Page 80 PDU-50WX2 . ) r . ) r . ) r l l i d l i l l i d l i...
  • Page 81 PDU-50WX2 c i f...
  • Page 82 PDU-50WX2 GAL22V10 (X DRIVE ASSY : IC2006) • Drive Protect PLD • Pin Assignment (Top View) I/CLK I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q • Block Diagram XSUS_BI 1_50 XSUS_BO 1_24 1_40 XSUS_UI 1_49 XSUS_UO 1_23 1_39...
  • Page 83 PDU-50WX2 GAL22V10 (Y DRIVE ASSY : IC3003) • Drive Protect PLD • Pin Assignment (Top View) I/CLK I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q I/O/Q • Block Diagram sus_mute_in 1_64 1_63 ysusbin ysusbout 1_39 1_62 1_20 ysusuin ysusuout...
  • Page 84 PDU-50WX2 M30624FGAFP (DIGITAL VIDEO ASSY : IC1207) • Module Microcomputer • Pin Function l a i n i l l a i n i l n i l , y l l l u l l u t i s...
  • Page 85 PDU-50WX2 a l l g i l g i l t s i l a i n i l...
  • Page 86 PDU-50WX2 PD6358A (DIGITAL VIDEO ASSY : IC1301) • Picture Improved IC • Pin Function ) t r ) t i...
  • Page 87 PDU-50WX2 ) t r ) t i ) t i ) t i ) t i ) t i f i f ) t i ) t i ) t i ) t i ) t i ) t i...
  • Page 88 PDU-50WX2 ) t r ) t i...
  • Page 89 PDU-50WX2 ) t r ) t i f i f ) t i ) t i r i f ) t i ) t i ) t i r i f ) t i ) t i f i f...
  • Page 90 PDU-50WX2 ) t i r i f ) t i ) t r...
  • Page 91 PDU-50WX2 ) t i ) t i ) t i ) t i ) t i ) t i ) t i r i f ) t i ) t i ) t i ) t i ) t i...
  • Page 92 PDU-50WX2 ) t i ) t i ) t i ) t i ) t i ) t i ) t i...
  • Page 93 PDU-50WX2 PST9246N (DIGITAL VIDEO ASSY : IC1208) • Reset IC • Pin Assignment (Top View) SOT - 25 (TOP VIEW) • Block Diagram • Pin Function Pin No. Pin name Functions control pin Substrate pin GND pin Reset signal output pin...
  • Page 94 PDU-50WX2 FS781BZB (DIGITAL VIDEO ASSY : IC1802) • Low EMI Clock IC • Pin Assignment (Top View) Xout FS78x FSOUT 8 Pin SOIC Package • Block Diagram Loop Filter 4(6) 250 K Reference 1(3) Divider Phase 8 pF Detector 10 pF.
  • Page 95 PDU-50WX2 STK795-460 (X DRIVE ASSY : IC3200, IC3201) (Y DRIVE ASSY : IC2206, IC2214) • PDP Pulse Module IC • Block Diagram...

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