1. Manuals
  2. Brands
  3. Insignia Manuals
  4. Plasma TV
  5. NS-42PDP
  6. Service manual

Insignia NS-42PDP Service Manual

Hide thumbs Also See for NS-42PDP:
Table of Contents

Advertisement

Quick Links

Download this manual
PDP TELEVISION
NS-42PDP
America

Advertisement

Table of Contents
loading

Related Manuals for Insignia NS-42PDP

Summary of Contents for Insignia NS-42PDP

  • Page 1 PDP TELEVISION NS-42PDP America...

  • Page 2: Table Of Contents

    CONTENTS Safety precautions………………………………………………………………………..… Alignment instructions …………………………….…….………………………………… Method of software upgrading……………….…….……………………………………….……. Working principle analysis of the unit……………………………….………….…………. Block diagram…………………………………..………………………………….………… IC block diagram………………………………………………………………………..…… Wiring diagram ……………………………………………………………………………. Diagnosis for plasma screen……………………………………………………….…….. Troubleshooting guide ………………………………………………………………..…… Schematic diagram………………………………………………………………………… APPENDIX-A: Exploded View APPENDIX-B: Assembly list...

  • Page 3: Safety Precautions

    Note: This maintenance manual is intended only for the reference of the maintenance people. Please pay attention to the following points before carrying out the maintenance work. Safety Precautions Please read the “Points for attention for the Maintenance & Repair of PDP” and “Criterion for Identifying the Defects on Screen”...
  • Page 4 static electricity. During maintenance operation be sure to cover yourself with anti-static bag and before operation make sure to have it sufficiently grounded. 1.11 There are a big number of connection wires distributed around the screen. Please take care not to touch or scuff them during maintenance or removing the screen, because once they are damaged the screen will fail to work and it’s not possible to repair it.
  • Page 5 become a potential safety trouble. 1.22 In addition to plasma screen, the glass is a part of high value. It has such functions as anti-radiation, adjustment of color temperature etc. Please handle it carefully. 2. “Criterion for Identifying the Defects on Screen” The PDP produced by our Company at present uses the following criterion for identifying the defective points: 2.1 Model PS-42XX:...
  • Page 6 Table 2 Cell Defect Specifications Specification Defect Distance between two defects Number of Cell Defects (N) ►Total N≤4 [cells/full screen] A-zone ►N≤2 [cells/each R,G,B screen] Non-Ignition ►N=0 [adjacency of 2-cells/full-white screen] Dot* ►Total N≤11 [cells/full screen] ►A-Zone:≥100mm +Unstable Dot* ►N≤5 [cells/each R,G,B screen] B-zone ►B-Zone: N≤2 ►N≤5 [adjacency of 2-cells/full-white screen]...
  • Page 7 2.3 Model PH-50XX: There may appear three kinds of defective points for this model as shown in Fig.3 i.e., bright spot (remain bright); dark spot (non-illuminating); flickering spot (remain flickering). However they should not exceed the specification as in table 3. Otherwise the product shall be deemed as sub-standard.

  • Page 8: Alignment Instructions

    Alignment instructions 1. Test equipment PM5515 (video signal generator) VG-849 (YUV, VGA, HDMI signal generator) CA100 (white balancer) 2. The alignment flow chart (see below figure) Check DDC and FLASH To produce digital board and analog board All testing Adjust white balance Connect with central signal source, then check each function of TV such as station missing, analog control etc., check the output of headphone and speaker Input AV/SVIDEO signal, then check each function of all the terminals...
  • Page 9 and “CH-“ to move cursor up and down, when the cursor stays on a certain adjustment item, press “VOL-“ and “VOL+” to adjust. Press “MENU” exit to the level one factory menu; press “EXIT” to exit from the factory menu at any situation. Note: channel switch isn’t available at adjustment menu, only after return to level one factory menu, you can switch channel.
  • Page 10 31.469 59.94 HDTV 480p 44.955 59.94 HDTV 720p 33.716 59.94 HDTV 1080i 4.4 VGA terminal Input VGA signal (VG-849 signal generator), separate input VGA format signal of table 2 and check if the picture and sound are normal. If the image is deflection of the H-field, select manual correction of Advanced Video Menu.
  • Page 11 6) Feature menu, Sleep Timer: Off, Menu Language: English Note: Except for Color Temperature of Cool, the Advanced Video Menu of YPbPr/YCbCr and VGA channels sets according to the adjustment of factory. Trouble shooting Before servicing please check to find the possible causes of the troubles according to the table below.
  • Page 12 Symptoms Possible cause Picture is twisted and deformed Check to see if the picture-frame ratio is properly set up. Picture color changed or colorless Check the “Component” or “RGB” settings of the liquid crystal TV set and make proper adjustment according to the signal types.

  • Page 13: Method Of Software Upgrading

    Method of software upgrading 1. Connect RS-232 cable to computer and TV set. The cable must be a female to female RS-232 cable, and the line is TXD to RXD and RXD to TXD cross-link. It’s popular for PC to PC connection.
  • Page 14 3. Copy the update tools (iDev.exe) to the path you want to do it, and double click it. 4. Select “setup” menu. 5. Confirm the Serial port is right. Base on the port which using for update. And set the band rate to 115200 (default).
  • Page 15 6. Select the “Image path” menu. 7. Confirm it’s the right file. 8. If it’s not right(Maybe you didn’t select it before),click the “…”button to select “*.ecc” file. Sometimes the image file you got it will be “*.rar ”or “*.zip” zip file, needs unzip it first.
  • Page 16 9. You also can click the setup button to select and config, but please don’t select the red one(update boot sector). 10. Then click the “down” button.
  • Page 17 11. You can see the “waiting” window. 12. Then power (off then) on the TV set. 13. After download, it will be burning.
  • Page 18 14. Last it will be finished 15. Press the (IR/ locate keypad) power key and holding for several second to force power off TV set, then power on again. It would be ok now. If it’s failure you can try once again.

  • Page 19: Working Principle Analysis Of The Unit

    Working principle analysis of the unit 1. NTSC signal flow: Antenna reception NTSC signal send to the integrative tuner FQD1236, which contains HF and IF amplifier circuit and video decoding circuit. It is controlled by main IC ZR39660 (inside CPU) through I2C bus.

  • Page 20: Block Diagram

    Block diagram YPBPR1 AUDIO YPBPR2 AUDIO PC AUDIO CVBS_TV HS,VS,CLK 24-BIT Data Panel...

  • Page 21: Ic Block Diagram

    IC block diagram 1. ZR39140...
  • Page 22 Pin descriptions of ZR39660: (1) Serial Transport Input Port T4: MPEG Transport Port Input Clock T3: MPEG Transport Input Data U3: MPEG Transport Input Frame Y1: MPEG Transport Input Valid (2) HDMI Input D1,E3,F3,E2,F2,E1: HDMI Differential Data Pairs D2,C1: HDMI Differential Clock Pair C3: HDMI Serial Clock B2: HDMI Serial Data A1: HDMI Hot Plug Detect...
  • Page 23 (7) UART and I2C Interface N1: UART 0 Transmit P1: UART 0 Receive R1:I2C Compatible Clock 0 P2:I2C Compatible Data 0 M3:I2C Compatible Clock 1 M2:I2C Compatible Data 1 (8) Miscellaneous M4, N3: Two pins required to support the 24.576 MHz crystal N5: Power On Reset L4: Infrared Receive 2.
  • Page 24 Pin configuration of j-L003: (1) TTL SIGNAL INPUT 71: VS INPUT 72: HS INPUT 73: DE 76: CLK INPUT； 74, 78, 79, 80, 81, 82, 84, 93: RED Signal INPUT； 94, 95, 96, 97, 98, 99, 101, 102: GREEN Signal INPUT； 103, 104, 106, 107, 108, 109, 110, 111: BLUE Signal INPUT；...
  • Page 25 Pin configuration of CAS220/CS: Pin descriptions of CAS220/CS: 61: RESET_N 79, 80 oscillator 13 Select I2C address 16: I2C data for host communication with the tuner 18: I2C clock to the tuner 19: I2C clock from host 20: I2C data from/to host 93,94: Differential input for IF 96,97: Differential input for SIF 63: Digital Sound Word select (L/R select)
  • Page 26 4. MST9883 MST9883 is a Triple Video A/D Converter with Clamps & Pixel Clock Synthesizer. The triple ADC support 12 - 110 MHz Sampling Rate. It integrated 5-bit pixel clock phase adjustment for precise sample timing control. It’s Output support 4:2:2 Format Mode and it can Pin Compatible with AD9883A.
  • Page 27 Pin configuration of MST9883: Pin descriptions of MST9883: 54: Red analog input 48: Green analog input 43: Blue analog input 49: Sync on Green analog input 38: External Clamp Input 30: Horizontal SYNC Input 31: Vertical SYNC Input 29: Hold PLL Frequency, do not track HSYNC 56: Serial Interface clock 57: Serial Interface data pin 55: Serial interface address pin...
  • Page 28 26,27,34,35: PLL Power 11,22, 23, 69,78,79: Digital Output Power 1,10,20,21,24,25,28,32,36,40,41,44,47,50,53,60,61,63,68,80:Ground 5. R2S15900SP R2S15900SP is an audio signal processor. It has MUTE and Volume/Tone control. It can support 5 input selector. Pin descriptions of R2S15900SP: 2,27: AV1 AUDIO INPUT L/R 3,26: AV2 AUDIO INPUT L/R 4,25: DTV AUDIO INPUT L/R 5,24: EAR PHONE L/R 6,23: AV OUT L/R...
  • Page 29 6. TPA3001 The sound power amplifier TPA3001 Class D AMP is the high effective D type of power amplifier of the single track. The output power can reach 20W with 8-Ω speakers, +18V power supply, eliminating the need for heat sinks. The TPA3001D1 is available in the 24-pin thermally enhanced TSSOP package.

  • Page 31: Diagnosis For Plasma Screen

    Diagnosis for Plasma Screen of PH42/50FBXX And Maintenance of the Functions of Various Modules on Screen 1. Functions of Various Modules on Screen As shown in the figure below, PDP screen can be divided into power supply board, X driving board, Y driving board, logic board, logic BUFFER board (E, F, G), Y BUFFER board (upper and lower), COF etc.: Y BUFFER(up) Power supply board...
  • Page 32 2. Trouble diagnosis: 1) The screen is not bright: a. Check to see if the power supply plug from the power filter board to the power supply board is well inserted into the socket. If not, plug it in. b. Check if the fuse on the power supply board is blown up. If yes, replace it for a good one. c.
  • Page 33 a. If it’s one vertical unlit line, then COF has problem. b. If it’s a vertical entirely unlit block, then first check if the connection socket between COF and logic BUFFER has problem. If not, check if the connection socket between the logic BUFFER and the logic board is normal.

  • Page 34: Troubleshooting Guide

    Troubleshooting guide Begin Check power board , button board and power A red indicator cord lights? Yes, turn the unit on Check if the pin1 of X602 in data processing A blue indicator board is high level(+5V)? check V660/V661. lights? Check if the crystal in data processing board Display picture? starts, DDR clock is correct?
  • Page 35 (2) no picture, no sound No picture, no sound Check the color of indicator light Blue Check power Check the output voltage of board sockets X601~X603/X606/X608 No sound No picture Power board problem Refer to (3) checking Refer to (4) checking procedure procedure (3) with picture but no sound...
  • Page 36 (4) with sound but no picture With sound but no picture Display OSD MENU? Display LOGO? If pin5 of X602 (IRR) has signal? Check if the crystal in data processing board starts, If there is no picture DDR clock and DDR SDRAM are normal? in all channels? Check N108...
  • Page 37 (5) Check image processing board Check the power supply of N803 Check if pin20, 21, 27, Check if the power supply of 30 of X801is high level L801/L802 are normal Check if pin3, 5, 26 of N806 Check the peripheral and power supply of output H/V-SYNC and clock N801, N802, DDR of data board Check the peripheral and power...
  • Page 38 (6) AV no picture Check if C136 and C137 input signals? Check if pin13 of N104 Check N105/N106 and the circuit outputs signals? from AV terminal to N104 Check the periphery circuit Check N104 and its from XC02 to N801 periphery circuit (7) S-terminal no picture Check if C105 and C138...
  • Page 39 (8) NTSC channel no picture Check if pin11 of TUNER226 output signals? Check if pin13 of N104 Check TUNER226 power supply outputs signals? and the peripheral circuit. Check the periphery circuit Check N104 from XC02 to N801 periphery circuit (9) ATSC channel no picture Check if pin6/7 of TUNER226 output signals? Check if the crystal of...
  • Page 40 (10) YprPb or Ycrcb channel no picture Check if pin4/7/9 of NB07 output signals? Check if pin64/66/67 of Check if pin4/7/9 of NB08 output NA51 are normal? signals? Check resistor Check NA51 Check NB01/NB02 Check NB07 rows RA63~ peripheral and the circuit from peripheral RA68 circuit.
  • Page 41 (12) HDMI channel no picture Check DETECT NA04 and its peripheral circuit? Check signals Check the connection to HDMI RA18~RA25 are normal? socket, NA04 peripheral circuit Check N801 and its peripheral circuit Note: N801 embeds FLASH, which stores DDC and HDCP information of HDMI, so make sure the connection between HDMI socket/interface and the bus line is well- going, the picture will display.
  • Page 42 Block diagram of LG 42” power board...
  • Page 43 Block diagram of LG 50” power board...
  • Page 44 Troubleshooting of LG 42” power board Instruction of system and time sequence control The whole system is composed of EMI, rectify, PFC, DC/DC and MCU. Therein MCU is the control core of the whole system. On the one hand, it controls ON/OFF time sequence of each voltage and the main, AC voltage test.
  • Page 45 Troubleshooting of LG 50” power board Instruction of system and time sequence control The whole system is composed of EMI, rectify, PFC, DC/DC and MCU. Therein MCU is the control core of the whole system. On the one hand, it controls ON/OFF time sequence of each voltage and the main, AC voltage test.
  • Page 54 Analog board...
  • Page 57 power board for LG 42" panel...
  • Page 58 power board for LG 42" panel...
  • Page 59 power board for LG 50" panel...
  • Page 60 power board for LG 50" panel...

  • Page 61: Appendix-A: Exploded View

    APPENDIX: Exploded view(PH-42X6)
  • Page 62 PART LIST OF EXPLODED VIEW PART NO. DESCRIPTION 808-10884-AW0 Speaker front cover (left) 808-20338-222 PMMA Decorative board 743-10206-AM0 front cover Decorate piece (upper) 700-60186-00A LED column 743-10207-AM1 front cover Decorate piece (bottom) 780-I06R0-7A1 Front cover 808-10889-AW0 Speaker front cover (right) 384-41504-50 Speaker 822-10192-00...
  • Page 63 868-2A448-00 base underlay High frequency board assy 870-10313-00 Trans-connecting bracket (right) 803-30208-00B bottom Push board (left) 803-30209-00B bottom Push board (right) 803-30205-00 rightPush board 877-60593-G0 button Button board assy 360-30041-00 Power switch 870-10186-00 power bracket 877-60632-0G0 Power button 808-10722-AF0 Speaker box cover 742-30079-00 Line clasp...
  • Page 64 APPENDIX-B: Main assembly Model Parts Parts No. Analog board 667-PS42FB6-53 NS-42PDP Data processor board 667-PS42FB6-69 Image processor board 667-PH42FB6-52 Power supply board 667-PH42FB6-20 Power filter board 667-PH42T8-51 Key board 667-PH42FB6-05 Remote parts 301.D42FB6-06F Panel 335-42014-00...
  • Page 65 603-PH42FB6-11 Ver.1.0...

Table of Contents