HP L1506 Service Manual
HP L1506 Service Manual

HP L1506 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........................................4
3. Operation Instruction............................................5
3.1. General Instructions.........................................5
3.2. Control Button......................................................5
3.3 Adjusting the Picture..........................................6
4. Input/Output Specification.......................................7
4.1. Input Signal Connector.........................................7
4.2. Factory Preset Display Modes...........................8
4.3. Power Supply Requirements...............................9
5. Panel Specification.........................................10
5.1. General Feature...............................................10
5.2. Optical Characteristics....................................11
6. Block Diagram.....................................................12
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
6.1. Monitor Exploded View...................................12
6.2 Software Flow Chart....................................13
6.3. Electrical Block Diagram...........................15
7. Schematic.....................................................17
7.1 Main Board....................................................17
7.2 Power Board...............................................21
8.PCB Layout.....................................................23
8.1. Main Board.................................................23
8.2. Power Board..........................................25
8.3. Key Board...............................................28
9. Maintainability................................................29
9.2. Trouble Shooting.......................................30
11. BOM List........................................................37
12.Different Parts List............................................48
SAFETY NOTICE
1
HP L1506
Horizontal Frequency
30- 83 kHz
Page

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Summary of Contents for HP L1506

  • Page 1: Table Of Contents

    15" LCD Color Monitor HP L1506 Service Service Service Horizontal Frequency 30- 83 kHz TABLE OF CONTENTS Description Page Description Page Table Of Contents..……......…..1 6.1. Monitor Exploded View…………………..…..12 Revision List.…........……..2 6.2 Software Flow Chart……………..……………….13 1. Monitor Specification......………..3 6.3. Electrical Block Diagram……………..…..15 2.
  • Page 2: Revision List

    15" LCD Color Monitor HP L1506 Revision List Version Date Revision History TPV Model Name T57VMSDPABHPNNE T57VMSDKABHANNE T57VMSDDABHPNNE Nov.-17-2008 first release T57VMSDTABHPNNE T57VMSDCABHPNNE T57VMSDDABHANNE...
  • Page 3: Monitor Specification

    15" LCD Color Monitor HP L1506 1. Monitor Specification...
  • Page 4: Lcd Monitor Description

    15" LCD Color Monitor HP L1506 2. LCD Monitor Description The LCD Monitor will contain main board, power board, key board and an audio board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.
  • Page 5: Operation Instruction

    15" LCD Color Monitor HP L1506 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 of the panel. By changing these settings, the picture can be adjusted to your personal performance.
  • Page 6: Adjusting The Picture

    15" LCD Color Monitor HP L1506 3.3 Adjust the Picture Use the On-Screen Display (OSD) to adjust the screen image based on your viewing preferences. To access the OSD, do the following: 1. If the monitor is not already on, press the Power switch to turn on the monitor.
  • Page 7: Input/Output Specification

    15" LCD Color Monitor HP L1506 4. Input/Output Specification 4.1 Input Signal Connector Signal Signal Red Video +5 V (from PC) Green Video Ground Blue Video Ground Ground DDC-serial Data Detect Cable Horizontal Sync Red GND Vertical Sync Green GND...
  • Page 8: Factory Preset Display Modes

    15" LCD Color Monitor HP L1506 4.2 Factory Preset Display Modes...
  • Page 9: Power Supply Requirements

    15" LCD Color Monitor HP L1506 4.3 Power Supply Requirements Parameter Range AC Line Voltage range 100 to 240V AC Line Frequency range 47 to 63 Hz Peak surge Current < 55 A MAX AT 220VAC and cold starting Leakage Current <...
  • Page 10: Panel Specification

    15" LCD Color Monitor HP L1506 5. Panel Specification 5.1 General Feature...
  • Page 11: Optical Characteristics

    15" LCD Color Monitor HP L1506 5.2 Optical Characteristics...
  • Page 12: Block Diagram

    15" LCD Color Monitor HP L1506 6. Block Diagram 6.1 Monitor Exploded View...
  • Page 13: Software Flow Chart

    15" LCD Color Monitor HP L1506 6.2 Software Flow Chart...
  • Page 14 15" LCD Color Monitor HP L1506 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 15: Electrical Block Diagram

    15" LCD Color Monitor HP L1506 6.3 Electrical Block Diagram 6.3.1 Scalar Board Panel Interface (CN101) EPR_SDA EEPROM EPR SCL Scalar HUM16AWL (U402) (Include ADC、OSD、MCU) (U401) DDC_SDA Hsync, DDC SCL Vsync D-Sub Connector EEPROM (CN405) (U404) DB15_SDA DB15 SCL...
  • Page 16 15" LCD Color Monitor HP L1506 6.3.2 Inverter / Power Board filter Rectifier and Rectifier and 12V/5V Transform filter filter D904; D905 To main board Start circuit R904; R905, OVP circuit Switching circuit Feedback PWM control circuit IC&MOSFET IC902;IC903 On/off control...
  • Page 17: Schematic

    15" LCD Color Monitor HP L1506 7. Schematic 7.1 Main Board 11/21 CN405 #11 change to NC CN405 RED+ FB410 150 OHM R434   1/10W C432 0.047uF RED+ RED- GREEN+ FB411 150 OHM R435 1/10W C433 0.047uF   GREEN+ GREEN-...
  • Page 18 15" LCD Color Monitor HP L1506 AVDD_DVI VPLL AVDD VDDP VDDC VMPLL VCC1.8 FB401 VDDC VCC3.3 FB402 AVDD VCC3.3 FB405 VPLL VCC1.8 600 OHM 600 OHM 600 OHM U401 C407 C403 C402 C450 0.1uF C416 VCC3.3 0.1uF 0.1uF VCTRL PA[0..9]...
  • Page 19 15" LCD Color Monitor HP L1506 CN701 BL_ON BL_ADJ BL_ON R710 +5V 1,2 Q703 R711 C711 MMBT3904   1/10W C710 C709 0.1uF R712 4.7K   1/10W on_BACKLIGHT 2 47uF/25V CONN 11/21 CN701 change type   12/07:C710/C712/C720/C723--Change from 67G405V470 3P(105 47uF M 16V)  ...
  • Page 20 15" LCD Color Monitor HP L1506 PA[0..9] PA[0..9] LVA3P CN101 LVA3M LVACKP LVB0M RXO0- RXO0+ LVB0P LVACKM LVB1M RXO1- RXO1+ LVB1P LVA2P LVB2M RXO2- RXO2+ LVB2P LVA2M LVBCKM RXOC- RXOC+ LVBCKP LVA1P LVB3M RXO3- RXO3+ LVB3P LVA1M LVA0M RXE0- RXE0+...
  • Page 21: Power Board

    15" LCD Color Monitor HP L1506 7.2 Power Board R922 100   1/4W C914 R923 100   1/4W 0.001uF T901 R924 100 1/4W   POWER X'FMR D904 C904 BD901 R904 1500pF/1KV J 908 430K   1/4W SP10150 L903 R907 510K  ...
  • Page 22 15" LCD Color Monitor HP L1506 CN801 R801 +12V PT801 POWER X'FMR   1/4W R804 R802 R805 CONN   1/8W   1/4W 300K   1/8W C816 15pF/3KV C819 C817 R831 R832 R833   1/8W C811 Q802 PMBS3904 220uF/25V 15R 1/8W 0.001uF...
  • Page 23: Pcb Layout

    15" LCD Color Monitor HP L1506 8. PCB Layout 8.1 Main Board...
  • Page 24 15" LCD Color Monitor HP L1506...
  • Page 25: Power Board

    15" LCD Color Monitor HP L1506 8.2 Power Board...
  • Page 26 15" LCD Color Monitor HP L1506...
  • Page 27 15" LCD Color Monitor HP L1506...
  • Page 28: Key Board

    15" LCD Color Monitor HP L1506 8.3 Key Board...
  • Page 29: Maintainability

    15" LCD Color Monitor HP L1506 9. Maintainability 9.1 Equipments 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 30: Trouble Shooting

    15" LCD Color Monitor HP L1506 9.2 Trouble Shooting 9.2.1 Main Board 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 U701 PIN2=3.3V...
  • Page 31 15" LCD Color Monitor HP L1506 No picture (LED orange) No picture The button if under X401 oscillate Replace X401 control waveform is normal Check Correspondent Check reset circuit of component U401 is normal Measure U701 PIN2=3.3V U704 PIN2=1.8V Replace U401...
  • Page 32 15" LCD Color Monitor HP L1506 White screen White screen Measure Q703 base X401 oscillate waveform is normal is high level? Replace X401 Check Q704,Q706 are Check reset circuit of broken or CN101 solder? U401 is normal Check Correspondent Check Correspondent component.
  • Page 33 15" LCD Color Monitor HP L1506 9.2.2 Power Board 1. No Power No power Check AC line volt 100V or 240V Check AC line Check the voltage of C905(+) Check F901, BD901 Check start voltage for the pin3 of IC901...
  • Page 34 15" LCD Color Monitor HP L1506 2. W/LED No Backlight Check C811 (+) =12V Check Q801/Q802/Q803 Check ON/OFF signal Check Interface board Check IC801 pin5=12V voltage Check Q804/Q806/Q807 Check the pin1/15 of IC801 if have waveforms Short Q805 S D ,if the picture normal...
  • Page 35 15" LCD Color Monitor HP L1506 9.2.3 Key Board OSD is unstable or not working Connect Key Pad Board Is Key Pad Board connecting normally? Replace Button Switch Is Button Switch normally? Is Key Pad Board Normally? Replace Key Pad Board...
  • Page 36: White-Balance, Luminance Adjustment

    B. sRGB color: sRGB color temp. parameter is x = 313±20, y = 329 ±20, Y>200 cd/m2) C. 6500K color: Don’t adjust, Custom requires. 3. Into factory mode of HP L1506/L1506s A. Press DOWN button during 2 seconds along with press Power button will activate the factory mode, then MCU will do AUTO LEVEL automatically.
  • Page 37: Bom List

    15" LCD ASS'Y E750 750GLD5010T11Z000H Panel SVA150XG10TB A SH SVA CBPC7VMSHAH1 CONVERSIONG2433-2-X-X-1-070406 H15G8159 A 1 MAIN FRAME H40G 150690 1F L1506 ID LABEL H40G 15N690 5B ID LABEL H40G 581690 8A TCO'03 LABEL H41G160069033G L1506 DOCKIT NA(391904-DN8) H41G780069093C SCREEN FLYER (311618-007)
  • Page 38 15" LCD Color Monitor HP L1506 H45G 77 6 PE PACKING H45G 87 4 H PE BAG FOR BASE H45G 87 18 1H EPE COVER H52G6025 16009 INSULATE SHEET KEPC6HB4 KEY G1532-3-P-X-1-061228 KEPC980KHP4P KEY BOARD PWPC7521VHA1 POWER G2274-2-X-X-2-070420 Q41G7800690B36 RTF CARD...
  • Page 39 15" LCD Color Monitor HP L1506 U403 056G1133 32 IC M24C04-WMN6TP SO8 U404 056G1133 34 M24C02-WMN6TP U402 056G1133 74 SST25VF010A-33-4C-SAE Q402 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q701 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q703 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q706 057G 417 4 PMBS3904/PHILIPS-SMT(04)
  • Page 40 15" LCD Color Monitor HP L1506 R717 061G0603103 6857 RST CHIPR 10 KOHM +-5% 1/10W R727 061G0603103 6857 RST CHIPR 10 KOHM +-5% 1/10W R404 061G0603103 6857 RST CHIPR 10 KOHM +-5% 1/10W R406 061G0603103 6857 RST CHIPR 10 KOHM +-5% 1/10W...
  • Page 41 15" LCD Color Monitor HP L1506 C439 065G0603104 226029 CAP:CER 0.1UF 10% 25V SMT 0603 C440 065G0603104 226029 CAP:CER 0.1UF 10% 25V SMT 0603 C441 065G0603104 226029 CAP:CER 0.1UF 10% 25V SMT 0603 C444 065G0603104 226029 CAP:CER 0.1UF 10% 25V SMT 0603...
  • Page 42 15" LCD Color Monitor HP L1506 C434 065G0603473 326785 CHIP 0.047UF 50V X7R C433 065G0603473 326785 CHIP 0.047UF 50V X7R C432 065G0603473 326785 CHIP 0.047UF 50V X7R FB409 071G 56G151 A6888 TB160808G151 FB406 071G 56Z601 M CHIP BEAD 600OHM FB405...
  • Page 43 15" LCD Color Monitor HP L1506 077G 600 1GCJ TACT SWITCH TSPB-2 -NP 077G 600 1GCJ TACT SWITCH TSPB-2 -NP 077G 600 1GCJ TACT SWITCH TSPB-2 -NP E715 715G1532 3 K6F2I KEY BOARD PCB CN801 033G8020 2E U CONNECTOR CN802...
  • Page 44 15" LCD Color Monitor HP L1506 C001 065G0603102 326857 CHIP 1000PF 50V X7R C002 065G0603102 326857 CHIP 1000PF 50V X7R C003 065G0603102 326857 CHIP 1000PF 50V X7R 715G1532 3 P6F2I KEY BOARD PCB NR901 061G 58050 WT6872 RST NTCR 5 OHM 5A 096G 29 10 H.S.
  • Page 45 15" LCD Color Monitor HP L1506 R816 061G0805105 6857 RST CHIPR 1MOHM +-5% 1/8W R822 061G0805105 6857 RST CHIPR 1MOHM +-5% 1/8W R826 061G0805105 6857 RST CHIPR 1MOHM +-5% 1/8W R829 061G0805105 6857 RST CHIPR 1MOHM +-5% 1/8W R833 061G0805150...
  • Page 46 15" LCD Color Monitor HP L1506 R909 061G1206514 6857 RST CHIPR 510KOHM +-5% 1/4W R900 061G1206684 6857 RST CHIPR 680KOHM +-5% 1/4W R901 061G1206684 6857 RST CHIPR 680KOHM +-5% 1/4W R902 061G1206684 6857 RST CHIPR 680KOHM +-5% 1/4W C821 065G0805102 32...
  • Page 47 15" LCD Color Monitor HP L1506 L902 006G 31502 1.5MM RIVET NR901 006G 31502 1.5MM RIVET PT801 006G 31502 1.5MM RIVET Q903 006G 31502 1.5MM RIVET T901 006G 31502 1.5MM RIVET IC904 056G 158 10 T IC AS431AZTR-E1 TO-92 J914...
  • Page 48: Different Parts List

    15" LCD Color Monitor HP L1506 12. Different Parts List Diversity of T57VMSDDABHPNNE compared with T57VMSDPABHPNNE Location Part No. Description 041G780069089A warranty card(390490-AA1) 041G780069090A WARRANTY(C8942-90052) E08901 089G414A19N IS POWER CORD 705G560KF34002 15" LCD ASS'Y H41G7806690 9A CHINA RoHS CARD H70G1600690 4E...

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