Planar PL1520M Service Manual

Planar PL1520M Service Manual

15" lcd color monitor
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15" LCD Color Monitor
Service
Service
Service
Description
Table Of Contents......................................................1
Revision List........................................................2
1. Monitor Specification...............................................3
2. LCD Monitor Description........................................6
3. Operation Instruction............................................7
3.1. General Instructions.........................................6
3.2. Control Button......................................................7
3.3 Adjusting the Picture..........................................9
4. Input/Output Specification.......................................20
4.1. Input Signal Connector.........................................20
4.2. Factory Preset Display Modes...........................21
4.3. Power Supply Requirements...............................22
5. Panel Specification.........................................23
5.1. General Feature...............................................23
5.2. Optical Characteristics....................................24
6. Block Diagram...........................................25
6.1 Monitor Exploded View..................................25
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC
EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

TABLE OF CONTENTS

Page Description
6.2 Software Flow Chart.....................................26
7. Electrical Block Diagram.................................28
7.1 Main Board....................................................28
7.2 Power/Inverter Board...........................................29
8. Schematic......................................................30
8.1. Main Board.........................................................30
8.2. Power Board.......................................................33
9. PCB Layout.........................................................35
9.1. Main Board....................................................35
9.2. Power Board.................................................37
9.3. Audio Board....................................................40
9.4. Key Board....................................................40
10. Maintainability...............................................41
10.2 Trouble Shooting .......................................42
12. BOM List............................................................49
SAFETY NOTICE
1
Planar PL1520M
Horizontal Frequency
30- 60 kHz
Page

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Summary of Contents for Planar PL1520M

  • Page 1: Table Of Contents

    15" LCD Color Monitor Planar PL1520M Service Service Service Horizontal Frequency 30- 60 kHz TABLE OF CONTENTS Description Page Description Page Table Of Contents..……......…..1 6.2 Software Flow Chart……………………………….26 Revision List.…........……..2 7. Electrical Block Diagram…………………..…..28 1. Monitor Specification......………..3 7.1 Main Board..………........28 2.
  • Page 2: Revision List

    15" LCD Color Monitor Planar PL1520M Revision List Version Date Revision History TPV Model Name Nov.-16-06 Initial release J156V1NKACPNNP...
  • Page 3: Monitor Specification

    15" LCD Color Monitor Planar PL1520M 1. Monitor Specification...
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  • Page 6: Lcd Monitor Description

    Planar PL1520M 2. LCD Monitor Description The MFM PL1520M will contain main board, power board, audio board, and key board which house the flat panel control logic, brightness control logic and DDC. The power board will provide DC to AC Inverter voltage to drive the backlight of panel and the main board chips each voltage.
  • Page 7: Operation Instruction

    15" LCD Color Monitor Planar PL1520M 3. Operation Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor (See Figure 4). By changing these settings, the picture can be adjusted to your personal preferences.
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  • Page 9: Adjusting The Picture

    15" LCD Color Monitor Planar PL1520M 3.3 Adjust the Picture...
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  • Page 20: Input/Output Specification

    15" LCD Color Monitor Planar PL1520M 4. Input/Output Specification 4.1 Input Signal Connector...
  • Page 21: Factory Preset Display Modes

    15" LCD Color Monitor Planar PL1520M 4.2 Factory Preset Display Modes...
  • Page 22: Power Supply Requirements

    15" LCD Color Monitor Planar PL1520M 4.3 Power Supply Requirements A/C Line voltage range : 100 V ~ 240 V : 50 ± 3Hz, 60 ± 3Hz A/C Line frequency range Current : 1.5A max. at 100V, 0.8A max. at 264V Peak surge current : <...
  • Page 23: Panel Specification

    15" LCD Color Monitor Planar PL1520M 5. Panel Specification 5.1 General Feature...
  • Page 24: Optical Characteristics

    15" LCD Color Monitor Planar PL1520M 5.2 Optical Characteristics Mechanical Specifications Optical Specification...
  • Page 25: Block Diagram

    15" LCD Color Monitor Planar PL1520M 6. Block Diagram 6. 1.Monitor Exploded View...
  • Page 26: Software Flow Chart

    15" LCD Color Monitor Planar PL1520M 6.2 Software Flow Chart...
  • Page 27 15" LCD Color Monitor Planar PL1520M REMARK: 1) MCU initialize. 2) Is the EEprom blank? 3) Program the EEprom by default values. 4) Get the PWM value of brightness from EEprom. 5) Is the power key pressed? 6) Clear all global flags.
  • Page 28: Electrical Block Diagram

    15" LCD Color Monitor Planar PL1520M 7. Electrical Block Diagram 7.1 Main Board CN402 LVDS U400 U401 MST718BU Eeprom Include MCU/ADC/Scalar/OSD Y400 U402 Flash U100 P101 P102 P100 S-Video CVBS Audio out and Key control...
  • Page 29: Power/Inverter Board

    15" LCD Color Monitor Planar PL1520M 7.2 Inverter / Power Board Rectifier AC input Bridge Diode Transformer Rectifier EMI filter and Filter Start Circuit CN102 R906, R907 Feedback Over Circuit Voltage Protect Control IC ON/OFF OSC and MOSFET DC Convert...
  • Page 30: Schematic

    15" LCD Color Monitor Planar PL1520M 8. Schematic 8.1 Main Board...
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  • Page 33: Power Board

    15" LCD Color Monitor Planar PL1520M 8.2 Power Board R920 C920   1/2W 0.001uF/500V T901 F902 D910 31DQ10 FUSE TO INVERTER L903 CN102 BD901 2KBP06M R906 R904 C906 R903 C922 C924 C928 FB903   1/4W   1/4W 0.0015uF/2KV 100K  ...
  • Page 34 15" LCD Color Monitor Planar PL1520M Q203 SI4431DY -T1 CN201 C215 22pF/6KV +12V L201 R212 R225 R226 R227 R224 R214 3.9K   1/16W CONN 1/16W 1/16W   1/16W   1/16W     C216 C201 C202 2.2K   1/16W D201 D203...
  • Page 35: Pcb Layout

    15" LCD Color Monitor Planar PL1520M 9. PCB Layout 9.1 Main Board...
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  • Page 37: Power Board

    15" LCD Color Monitor Planar PL1520M 9.2 Power Board...
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  • Page 40: Audio Board

    15" LCD Color Monitor Planar PL1520M 9.3 Audio Board 9.4 Key Board...
  • Page 41: Maintainability

    15" LCD Color Monitor Planar PL1520M 10. Maintainability 10.1Equipments and Tools Requirement 1. Multi-meter. 2. Oscilloscope. 3. Pattern Generator. 4. DDC Tool with an IBM Compatible Computer. 5. Alignment Tool. 6. LCD Color Analyzer. 7. Service Manual. 8. User Manual.
  • Page 42: Trouble Shooting

    15" LCD Color Monitor Planar PL1520M 10.2 Trouble Shooting 10.2.1 Main Board 1、No power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Reinsert or check the Adapter/Inverter Measure U403 PIN2=2.5V...
  • Page 43 15" LCD Color Monitor Planar PL1520M No picture (LED is orange) No Picture Check Check Key under control ? D001/Q100/Q102 Check Check CN102 or Replace U403/U101 U403/U101 Check Replace U402 or U402/Y400 Y400 Check U401...
  • Page 44 15" LCD Color Monitor Planar PL1520M White Screen White screen Measure Q405 base Y400 oscillate is high level? waveform is normal Replace Y400 Check Q403 is broken or Check U101/U403 CN402 solder? Check Correspondent Replace U101/U403. component. Replace PANEL Check U401...
  • Page 45 15" LCD Color Monitor Planar PL1520M 10.2.2 Power Board 1. W/LED No Backlight Check C201 (+) =12V Check adapter Check ON/OFF signal Check Interface board or main board Check U201 pin9=12V Change Q201 or Q202 Check U201 PIN10 have the output of sawtooth wave at short time Change U201 Check D201 (-) has the output of square wave at short time.
  • Page 46 15" LCD Color Monitor Planar PL1520M 10.2.3 Key Board OSD is unstable or not working Is Keypad board connecting normally? Connect Keypad Board Is Button Switch normally? Replace Button Switch Replace Keypad Board Is Keypad board normally? Check main board...
  • Page 47: White-Balance, Luminance Adjustment

    6500 color temp. parameter is x = 313±20, y = 329 ±20, Y =180 cd/m 3. Into factory mode of PL1520M Turn on power, press the “MENU” key, Then press “>” key and highlight the OSD icon, press “MENU” key to confirm, then press “>”...
  • Page 48 15" LCD Color Monitor Planar PL1520M C. The LCD-indicator on chroma 7120 will show x = 313 ±20, y = 329 ±20, Y = 180 cd/m D. Press “AUTO” key to move the cursor to the GAIN-RGB, press “<”or”>” key to adjust the value of the R/G/B Gain until chroma 7120 indicator reached the value R=100 G=100 B=100 (RGB value meet the tolerance =100±2)
  • Page 49: Bom List

    15" LCD Color Monitor Planar PL1520M 12. BOM List J156V1NKACPNNP Location Part No. Description 015J5791 1 VESA BKT 015J5908 2 BRACKET 015J5935 25 MAIN FRAME 033J4693 GM L KEY PAD 033J4694 1 C POWER LENS 040T 581 26646 S/N LABEL...
  • Page 50 15" LCD Color Monitor Planar PL1520M E750L 750GLD504TB81N PANEL LCD 15" SVA150XG04TB REV.Q SVA AM1T1740 10 47 CR3 SCREW AUPF6QAAP AUDIO BOARD CBPF613KQAP CONVERSIONT2209-1-X-X-1-060913 KEPF6QAAP KEPF T2239-1-X-X-1-061026 PK1521SVE1P POWER BOARD Q34J1295 KGA1L BEZEL Q34J1298 GM 9L REAR COVER Q40T 15N935 2A...
  • Page 51 15" LCD Color Monitor Planar PL1520M C436 067T405V101 3P EC 105 ℃ CAP 100UF M 16V C441 067T405V101 3P EC 105 ℃ CAP 100UF M 16V C449 067T405V101 3P EC 105 ℃ CAP 100UF M 16V C460 067T405V101 3P EC 105 CAP 100UF M 16V ℃...
  • Page 52 15" LCD Color Monitor Planar PL1520M 040G 45762412B CBPC LABEL IC902 056G 139 3 PC123FY2 BY SHARP IC902 056G 139 7 1 IC EL817MA M-TYPE IC902 056G 139 3A PC123Y22FZOF IC902 056G 139 3B PC123 Y82FZ0F IC901 056G 379 77...
  • Page 53 15" LCD Color Monitor Planar PL1520M L903 073G 253 91 H CHOKE COIL L904 073G 253 91 L CHOKE BY LI TA L903 073G 253 91 L CHOKE BY LI TA L904 073G 253 91 LS CHOKE BY LI SHIN...
  • Page 54 15" LCD Color Monitor Planar PL1520M C203 065G0805104 32 CHIP 0.1U 50V X7R C213 065G0805104 32 CHIP 0.1U 50V X7R C204 065G0805474 22 CHIP 0.47UF 25V X7R 0805 C206 065G0805474 22 CHIP 0.47UF 25V X7R 0805 AIAUPF6QAAP AUDIO BOARD FOR AI...
  • Page 55 15" LCD Color Monitor Planar PL1520M R133 061T0603000 CHIP 0OHM 1/16W R125 061T0603000 CHIP 0OHM 1/16W R105 061T0603100 CHIP 10OHM 1/16W R107 061T0603100 CHIP 10OHM 1/16W R109 061T0603100 CHIP 10OHM 1/16W R111 061T0603100 CHIP 10OHM 1/16W R121 061T0603100 CHIP 10OHM 1/16W...
  • Page 56 15" LCD Color Monitor Planar PL1520M R137 061T0603330 CHIP 33OHM 1/16W R138 061T0603330 CHIP 33OHM 1/16W R408 061T0603330 CHIP 33OHM 1/16W R409 061T0603330 CHIP 33OHM 1/16W R419 061T0603330 CHIP 33OHM 1/16W R454 061T0603391 RST CHIPR 390 OHM +-5% 1/10W R116...
  • Page 57 15" LCD Color Monitor Planar PL1520M C425 065T0402103 32 MLCC 0402 10NF K 50V X7R C450 065T0402104 12 MLCC 0402 0.1UF K 16V X7R C448 065T0402104 12 MLCC 0402 0.1UF K 16V X7R C446 065T0402104 12 MLCC 0402 0.1UF K 16V X7R...
  • Page 58 15" LCD Color Monitor Planar PL1520M C123 065T0402104 12 MLCC 0402 0.1UF K 16V X7R C124 065T0402104 12 MLCC 0402 0.1UF K 16V X7R C127 065T0402104 12 MLCC 0402 0.1UF K 16V X7R C411 065T0402104 12 MLCC 0402 0.1UF K 16V X7R...
  • Page 59 15" LCD Color Monitor Planar PL1520M FB111 071G 56K121 M CHIP BEAD FB110 071G 56K121 M CHIP BEAD FB109 071G 56K121 M CHIP BEAD FB108 071G 56K121 M CHIP BEAD FB107 071G 56K121 M CHIP BEAD FB106 071G 56K121 M...
  • Page 60 15" LCD Color Monitor Planar PL1520M 095G205S354022 HARNESS 096G 29 6 H.S. TUBE D910 093G3010 1 A 31DQ10 Q90G 410 4 HEAT SINK Q203 056G 566 10 SI4431DY-T1-SMT U201 056G 622 1 BA9741F-SMT Q202 057G 760 4 DTA144WKA BY ROHM SMT...
  • Page 61 15" LCD Color Monitor Planar PL1520M R905 061G1206105 1M 1206 R224 061G1206242 RST CHIPR 2.4 KOHM +-5% 1/4W R225 061G1206242 RST CHIPR 2.4 KOHM +-5% 1/4W R226 061G1206242 RST CHIPR 2.4 KOHM +-5% 1/4W R227 061G1206242 RST CHIPR 2.4 KOHM +-5% 1/4W...
  • Page 62 15" LCD Color Monitor Planar PL1520M C205 067G 3054713XT 470 uf 16v C201 067G 3054713XT 470 uf 16v C210 067G 3091097XT 1.0uF +-20% 50V C209 067G 3091097XT 1.0uF +-20% 50V 715G1144 1 IO AUIDO BOARD PCB CN901 006G 31500 EYELET...
  • Page 63 15" LCD Color Monitor Planar PL1520M C908 065G 450104 7T 0.1UF +80-20% 50V Y5V C920 065G517K102 5T6921 1000PF +-10% 500V Y5P C921 065G517K102 5T6921 1000PF +-10% 500V Y5P C207 067G 2154797NT LOW ESR 4.7UF+-20% 50V BY CHEM C907 067G 3052207NT GP...

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