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Lenovo L215P Service Manual

Wide 22" lcd color monitor.
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User manual - 36 pages
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User manual - 36 pages

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22" LCD Color Monitor
Service
Service
Service
Table of Contents...................................................1
Revision List..........................................................2
Important Safety Notice.............................................3
1. Monitor Specification..................................................4
2. LCD Monitor Description........................................5
3. Operation Instruction...................................................6
3.1. General Instructions..................................................6
3.2. Control Button..................................................6
3.3. OSD Menu................................................................7
4. Input/Output Specification..................................10
4.1. Input Signal Connector..........................................10
4.2. Factory Preset Display Modes...............................11
4.3. Panel Specification..........................................12
5. Block Diagram.....................................................15
5.1. Software Flow Chart.........................................15
5.2. Electrical Block Diagram...........................17
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. Schematic.....................................................19
6.1. Main Board...................................................19
6.2. Power Board.................................................25
6.3. USB Board..........................................27
6.4. Key Board.............................................28
7. PCB Layout....................................................29
7.1. Main Board...................................................29
7.2. Power Board..................................................31
7.3. USB Board..........................................34
7.4. Key Board...................................................36
8. Maintainability................................................37
8.2. Trouble Shooting.......................................38
10. Monitor Exploded View................................46
11. BOM List................................................47
SAFETY NOTICE
1
Lenovo L215P Wide
Horizontal Frequency
30-83 KHz
Page

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Table of Contents

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   Summary of Contents for Lenovo L215P

  • Page 1: Table Of Contents

    22" LCD Color Monitor Lenovo L215P Wide Service Service Service Horizontal Frequency 30-83 KHz TABLE OF CONTENTS Description Page Description Page Table of Contents…………………………………………...1 6. Schematic……………........19 6.1. Main Board………..........19 Revision List………………………………………………..2 6.2. Power Board...……........25 Important Safety Notice………………………………..3 1. Monitor Specification.........………..4 6.3.
  • Page 2: Revision List

    22" LCD Color Monitor Lenovo L215P Wide Revision List Version Release Date Revision History TPV Model Name Nov 03, 2008 Initial release HIRASBMD4WG3RC...
  • Page 3: Important Safety Notice

    Lenovo L215P Wide Important Safety Notice Proper service and repair is important to the safe, reliable operation of all Lenovo Company Equipment. The service procedures recommended by Lenovo and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose.
  • Page 4: Monitor Specification

    22" LCD Color Monitor Lenovo L215P Wide 1. Monitor Specifications...
  • Page 5: Lcd Monitor Description

    22" LCD Color Monitor Lenovo L215P Wide 2. LCD Monitor Description The LCD monitor will contain a main board, a power board a USB board and a key board which house the flat panel control logic, brightness control logic and DDC.
  • Page 6: Operation Instruction

    22" LCD Color Monitor Lenovo L215P Wide 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control buttons are located at the front of the panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences.
  • Page 7: Osd Menu

    22" LCD Color Monitor Lenovo L215P Wide 3.3 OSD Menu To adjust the setting, the user controls can be viewed through the On-Screen-Display (OSD).
  • Page 8 22" LCD Color Monitor Lenovo L215P Wide OSD functions...
  • Page 9 22" LCD Color Monitor Lenovo L215P Wide...
  • Page 10: Input/output Specification

    22" LCD Color Monitor Lenovo L215P Wide 4. Input/Output Specification 4.1 Input Signal Connector Analog connectors Pin No. Description Pin No. Description Red Input +5VDC Green Input Blue Input Connection detect H sync Red GND V sync Green GND Blue GND HDMI connectors Pin No.
  • Page 11: Factory Preset Display Modes

    22" LCD Color Monitor Lenovo L215P Wide 4.2 Factory Preset Display Modes...
  • Page 12: Panel Specification

    22" LCD Color Monitor Lenovo L215P Wide 4.3 Panel Specification 4.3.1 General Features This specification applies to the 21.5 inch-wide Color a-Si TFT-LCD Model M215HW01. The display supports the Full HD – 1920 (H) x 1080 (V) screen format and 16.7M colors (RGB 6-bits + Hi-FRC data). All input signals are 2-channel LVDS interface and this module doesn’t contain an inverter board for backlight.
  • Page 13 22" LCD Color Monitor Lenovo L215P Wide 4.3.3 Optical Characteristics Item Unit Conditions Min. Typ. Max. Horizontal (Right) CR=10 (Left) Viewign Angle [degree] Vertical (Up) CR=10 (Down) Contrast Ratio Normal Direction 1000 Raising Time (T - Response Time [msec] Falling Time (T...
  • Page 14 22" LCD Color Monitor Lenovo L215P Wide 4.3.4 Electrical Characteristics (1) TFT-LCD Power Specification Symbol Parameter Min. Typ. Max. Unit Logic/LCD Drive Voltage [Volt] Input Current 1.17 VDD Power [Watt] IRush Inrush Current VDDrp Allowable Logic/LCD Drive Ripple Voltage [mV]p-p Signal Electrical Characteristics Input signals shall be low or Hi-Z state when VDD is off.
  • Page 15: Block Diagram

    22" LCD Color Monitor Lenovo L215P Wide 5. Block Diagram 5.1 Software Flow Chat...
  • Page 16 22" LCD Color Monitor Lenovo L215P Wide 1) MCU initializes. 2) Is the EPROM blank? 3) Program the EPROM by default values. 4) Get the PWM value of brightness from EPROM. 5) Is the power key pressed? 6) Clear all global flags.
  • Page 17: Electrical Block Diagram

    22" LCD Color Monitor Lenovo L215P Wide 5.2 Electrical Block Diagram 5.2.1 Main Board Panel Interface Crystal (X401) 14.31818MHZ (CN404) EEPROM (U403) Scalar TSUMU58KDT-LF-1 Keypad Interface M24C04-WMN6TP (Include MCU, ADC, OSD) (CN401) (U401) HDMI_CLK H sync Flash Memory (U402) HDMI_DAT...
  • Page 18 22" LCD Color Monitor Lenovo L215P Wide 5.2.2 Inverter/Power Board AC input Bridge Rectifier Transformer Rectifier diodes EMI filter and Filter Start Circuit: R905,R919, R920, R921 CN902 Feedback Circuit Control IC ON/OFF Output Transformer MOSFET Circuit ON/OFF Lamp Control Feedback...
  • Page 19: Schematic

    22" LCD Color Monitor Lenovo L215P Wide 6. Schematic 6.1 Main Board 715G3283-D VCC3.3 VCC3.3 CN701 +5V1 R713 10K 1/16W 5% R701 10K 1/16W 5% R702 100R 1/16W 5% Adj_BACKLIGHT 4 ON/OFF VCC3.3 AUDIO_ON/OFF 4 VCC3.3 R703 10K 1/16W 5%...
  • Page 20 22" LCD Color Monitor Lenovo L215P Wide RED+ FB101 0R05 1/16W R101 56 OHM 1/16W C101 0.047uF RED- GREEN+ FB102 0R05 1/16W R102 56 OHM 1/16W C102 0.047uF GREEN- BLUE+ FB103 0R05 1/16W R103 56 OHM 1/16W C103 0.047uF BLUE-...
  • Page 21 22" LCD Color Monitor Lenovo L215P Wide HDMIESD U501 CN501 HDMI HDMI1_CK- HDMI1_CK- R501 0R05 1/16W HCK- HCK- Line-4 HDMI1_CK+ HDMI1_CK+ R502 0R05 1/16W HCK+ HCK+ SHELL1 Line-3 HDMI1_D2+ HDMI1_D0- HDMI1_D0- R503 0R05 1/16W HD0- HD0- D2 Shield Line-2 HDMI1_D2-...
  • Page 22 22" LCD Color Monitor Lenovo L215P Wide VDDP VCC3.3 FB402 VCC3.3 FB404 AVDD_DAC VCC1.2 FB405 VDDC VCC3.3 VCC3.3 FB403 AVDD_33 VCC3.3 VCC1.2 120 OHM 120 OHM 120 OHM C408 C404 C405 C406 C407 C410 C414 C415 C416 C417 VCC3.3 120 OHM...
  • Page 23 22" LCD Color Monitor Lenovo L215P Wide CN605 R610 0R05 1/16W LINE_IN_0L 4 R611 0R05 1/16W LINE_IN_0R 4 PHONEJACK FB602 120 OHM +5V1 ZD601 R607 10K 1/16W 5% +5V1 TH601 CN602 RLZ5.6B +5V1 R609 Q601 RK7002 PTCR Buzzer_audio SPEAKER LINE_OUT_1R...
  • Page 24 22" LCD Color Monitor Lenovo L215P Wide CN302 LVB0M RXO0- RXO0+ LVB0P LVB1M RXO1- RXO1+ LVB1P LVB2M RXO2- RXO2+ LVB2P LVBCKM RXOC- RXOC+ LVBCKP LVB3M RXO3- RXO3+ LVB3P LVA0M RXE0- RXE0+ LVA0P LVA1M RXE1- RXE1+ LVA1P LVA2M RXE2- RXE2+ LVA2P...
  • Page 25: Power Board

    22" LCD Color Monitor Lenovo L215P Wide 6.2 Power Board 715G2816-D-3 C935 C920 1/4W R951 2200F/500V 2200PF/500V   BD901 KBJ608G 1/4W R952   L921 FB903   1/4W R953 SP10150 SECOS 3.5uH F902 BEAD D920 0R05 1/4W +12V T901 POWER X'FMR...
  • Page 26 22" LCD Color Monitor Lenovo L215P Wide PT801 R801 0R05 1/10W 5% CONN POWER X'FMR CN801 JR807 33OHM +12V L801 C801 R810 R850 R802 15pF/6KV 100R 1/8W   1/4W   1/4W CONN R805 R804 0R05 1/10W 5% Q802 CN802 R808...
  • Page 27: Usb Board

    22" LCD Color Monitor Lenovo L215P Wide 6.3 USB Board 715G3284-D change the USB control circuit 970110 USB5V USB5V +3.3V_USB U706 Q705 AO4419 C727 220uF 25V C738 C739 0.1uF 16V VBUS0 100UF25V U704 USB2514-AEZG Upstream R727 R728 22K 1/10W 5%...
  • Page 28: Key Board

    22" LCD Color Monitor Lenovo L215P Wide 6.4 Key Board 715G2891-2 CN001 VDDL 22 OHM +-5% 1/10W Right menu ATTN R0603 power input exit VDDL left CABLE 1uF/16V C0603 LED3 LED9 LED11 LED14 LED5 LED2 GPIO6 1uF/16V GPIO5 XCAP C0603...
  • Page 29: Pcb Layout

    22" LCD Color Monitor Lenovo L215P Wide 7. PCB Layout 7.1 Main Board 715G3283-D...
  • Page 30 22" LCD Color Monitor Lenovo L215P Wide...
  • Page 31: Power Board

    22" LCD Color Monitor Lenovo L215P Wide 7.2 Power Board 715G2816-D-3...
  • Page 32 22" LCD Color Monitor Lenovo L215P Wide...
  • Page 33 22" LCD Color Monitor Lenovo L215P Wide...
  • Page 34: Usb Board

    22" LCD Color Monitor Lenovo L215P Wide 7.3 USB Board 715G3284-D...
  • Page 35 22" LCD Color Monitor Lenovo L215P Wide...
  • Page 36: Key Board

    22" LCD Color Monitor Lenovo L215P Wide 7.4 Key Board 715G2891-2...
  • Page 37: Maintainability

    22" LCD Color Monitor Lenovo L215P Wide 8. Maintainability 8.1 Equipments and Tools Requirement Voltmeter. Oscilloscope. Pattern Generator. DDC Tool with an IBM Compatible Computer. Alignment Tool. LCD Color Analyzer. Service Manual. User Manual.
  • Page 38: Trouble Shooting

    22" LCD Color Monitor Lenovo L215P Wide 8.2 Trouble Shooting 8.2.1 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 90-264 is normal Reinsert or check the Adapter/Inverter section Measure U701 PIN2=3.3V...
  • Page 39 22" LCD Color Monitor Lenovo L215P Wide (2). No Picture No picture The button if X401 oscillate Replace X401 under control waveform is normal Check reset circuit of Check Correspondent Measure U701 PIN2=3.3V component U401 is normal Measure Q705 V =1.2V...
  • Page 40 22" LCD Color Monitor Lenovo L215P Wide (3). White screen White screen Measure Q703 base X401 oscillate waveform is normal is low level? Replace X401 Check Q703 and Q702 are broken or CN404 solder? Check reset circuit of U401 is normal...
  • Page 41 22" LCD Color Monitor Lenovo L215P Wide 8.2.2 Power/Inverter Board 1.) No power Check CN902 pin6 = 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C907 (+) Check bridge rectified circuit and F901 circuit...
  • Page 42 22" LCD Color Monitor Lenovo L215P Wide 2.) W / LED, No Backlight Check CN902 pin6= 12V Check adapter or MB Check ON/OFF signal Check Interface board Check IC801 PIN12=12V Change Q801, Q802 Check IC801 PIN9,10 have the output of square wave at short time Change IC801 Check Q804 and Q809 PIN5, 6, 7, 8 have the output of square wave at short time.
  • Page 43 22" LCD Color Monitor Lenovo L215P Wide 8.2.3 Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Pad Board Replace Button Switch Is Button Switch normally? Replace Key Pad Board Is Key Pad Board normally?
  • Page 44: White-balance, Luminance Adjustment

    = 313 ± 30, y = 329 ± 30, Y=180± 20cd/m 3. Into Factory mode of Lenovo L215P Wide: Press the MENU button, pull out the power cord, and then plug the power cord. Then the factory OSD will be at the left top of the panel.
  • Page 45 22" LCD Color Monitor Lenovo L215P Wide C. Adjust Bluish (9300K) color-temperature 1. Switch the Chroma-7120 to RGB-Mode (with press “MODE” button) 2. Switch the MEM. Channel to Channel 9 (with up or down arrow on chroma 7120) 3. The LCD-indicator on chroma 7120 will show x = 283 ± 20, y = 297 ± 20, Y=180± 20cd/m 4.
  • Page 46: Monitor Exploded View

    22" LCD Color Monitor Lenovo L215P Wide 10. Monitor Exploded View...
  • Page 47: Bom List

    22" LCD Color Monitor Lenovo L215P Wide 11. BOM List HIRASBMD4WG3RC Location Part No. Description Remark LENOVO-Assign Webcam Module 017G WCM 9 B BN64V4M2-000 040G 45760849B CERTIFICATION LABEL 040G 58160811A GREEN DOT LABEL 052G 1150 C INSULATING TAPE 052G 1185 56...
  • Page 48 22" LCD Color Monitor Lenovo L215P Wide Q37G0121011 HINGE E750 750GLU215H1013N000 PANEL M215HW01 V00 XM AUO 2nd source E750 750GLU215H1013N0LX PANEL M215HW01 V000 XM AUO 756GQ8CB LL029 SCALAR BOARD ASS'Y(CBPCRSBG1Q1) U402 056G1133 81 SST25LF020A-33-4C-SAE SMTCR-U402 100GLMAI000NT1 MCU ASS'Y(056G1133 81) 040G 45762412B...
  • Page 49 22" LCD Color Monitor Lenovo L215P Wide Q701 057G 417 12 T KEC 2N3904S-RTK/PS Q703 057G 417 13 T KEC 2N3906S-RTK/PS Q704 057G 417 16 T MMBT2907 Q705 057G 417 16 T MMBT2907 Q705 057G 417 22 T TRA KN2907AS -60V/-0.6A SOT-23...
  • Page 50 22" LCD Color Monitor Lenovo L215P Wide R608 061G0402102 RST CHIPR 1 KOHM +-5% 1/16W R516 061G0402102 RST CHIPR 1 KOHM +-5% 1/16W R112 061G0402102 RST CHIPR 1 KOHM +-5% 1/16W R111 061G0402102 RST CHIPR 1 KOHM +-5% 1/16W R513...
  • Page 51 22" LCD Color Monitor Lenovo L215P Wide R512 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R517 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R103 061G0402560 RST CHIP 56R 1/16W 5% R102 061G0402560 RST CHIP 56R 1/16W 5% R101 061G0402560 RST CHIP 56R 1/16W 5%...
  • Page 52 22" LCD Color Monitor Lenovo L215P Wide C416 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C417 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C713 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C438 065G0402104 15 MLCC 0402 0.1UF K 16V X5R...
  • Page 53 22" LCD Color Monitor Lenovo L215P Wide D102 093G 64 42 P BAV70 SOT23 BY PAN JIT ZD601 093G 39GA01 T RLZ5.6B ZD502 093G 39S 24 T RLZ 5.6B LLDS ZD102 093G 39S 24 T RLZ 5.6B LLDS ZD101 093G 39S 24 T RLZ 5.6B LLDS...
  • Page 54 22" LCD Color Monitor Lenovo L215P Wide CN804 033G8021 2E F WAFER CN801 033G8021 2E U INVERT CONNECTOR CN802 033G8021 2E U INVERT CONNECTOR CN803 033G8021 2E U INVERT CONNECTOR CN804 033G8021 2E U INVERT CONNECTOR IC902 056G 139 3A...
  • Page 55 22" LCD Color Monitor Lenovo L215P Wide CN901 087G 501 32 DL AC SOCKET DIP 3PIN+2PIN GROUND CN903 088G 304 8K C DC JACK BD901 093G 50460 34 BRIDGE KBJ608G 6A/800V KBJ CN902 095G 82514W509 HARNESS 14P(SCN)-10P(PH) CN902 095G 82514X509...
  • Page 56 22" LCD Color Monitor Lenovo L215P Wide R801 061G0603000 RST CHIP MAX 0R05 1/10W R804 061G0603000 RST CHIP MAX 0R05 1/10W R830 061G0603000 RST CHIP MAX 0R05 1/10W R832 061G0603000 RST CHIP MAX 0R05 1/10W R849 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W...
  • Page 57 22" LCD Color Monitor Lenovo L215P Wide R835 061G0805100 1F RST CHIPR 1K OHM +-1% 1/8W R834 061G0805100 1F RST CHIPR 1K OHM +-1% 1/8W R807 061G0805100 1F RST CHIPR 1K OHM +-1% 1/8W R806 061G0805100 1F RST CHIPR 1K...
  • Page 58 22" LCD Color Monitor Lenovo L215P Wide R837 061G1206150 RST CHIPR 15 OHM +-5% 1/4W R850 061G1206150 RST CHIPR 15 OHM +-5% 1/4W R851 061G1206150 RST CHIPR 15 OHM +-5% 1/4W JR807 061G1206330 RST CHIPR 33 OHM +-5% 1/4W R905...
  • Page 59 22" LCD Color Monitor Lenovo L215P Wide C914 065G0805471 21 CAP CHIP 0805 470PF J 25V NPO C920 065G1206222 72 MLCC 1206 2200PF K 500V X7R C921 065G1206222 72 MLCC 1206 2200PF K 500V X7R C935 065G1206222 72 MLCC 1206 2200PF K 500V X7R...
  • Page 60 22" LCD Color Monitor Lenovo L215P Wide 715G2816 D 3 POWER BOARD PCB Q902 057G 761 16 TRA KTD1028 KEC C932 067G 2046812KT CS CAP 680uF 10V 8*11 mm FB905 071G 55 29 FERRITE BEAD FB906 071G 55 29 FERRITE BEAD...
  • Page 61 22" LCD Color Monitor Lenovo L215P Wide Q45G 77 5 PE PACKING Q45G 88606 23 PE BAG Q45G 88609 81 EPE BAG FOR MONITOR Q52G6020143 PROTECT FILM Q52G6025 13152 INSULATE SHEET Q85G0109101 S SHIELD Q90G0167 1 HEAT SINK E08907 S89G179T30N507...
  • Page 62 22" LCD Color Monitor Lenovo L215P Wide F704 061G 56075 WT SMD PTC 0.75A KMC5S075R001 1812 R746 061G0402000 RST CHIP MAX 0R05 1/16W R747 061G0402000 RST CHIP MAX 0R05 1/16W R748 061G0402000 RST CHIP MAX 0R05 1/16W R745 061G0402000 RST CHIP MAX 0R05 1/16W...
  • Page 63 22" LCD Color Monitor Lenovo L215P Wide C743 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C740 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C738 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C733 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R...

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