Table of Contents
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17" LCD Color Monitor
Service
Service
Service
Description
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.Adjusting the Picture..........................................7
4.Input/Output Specification.......................................9
4.1.Input Signal Connector.........................................9
4.2.Factory Preset Display Modes.........................10
N
4.3.Panel Specification...............................................11
5.Block Diagram........................................................14
5.1.Software Flow Chart.........................................14
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
5.2. Electrical Block Diagram.................................16
6.Schematic...........................................................18
6.1.Main Board.................................................18
6.2.Power Board.....................................................23
7.PCB Layout...........................................................25
7.1.Main Board.......................................................25
7.2.Power Board..........................................28
7.3.Key Board..........................................................29
8.Maintainability........................................................30
8.1.Equipments and Tools Requirement...............30
8.2.Trouble Shooting..........................................31
9.White-Balance Luminance adjustment.................37
10.Monitor Exploded View....................................39
11.BOM List........................................................40
12. Different Parts List................................................50
SAFETY NOTICE
1
Lenovo D170 Wide
Horizontal Frequency
30-80 kHz
Page
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Summary of Contents for Lenovo D170 Wide
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Page 1: Table Of Contents
17” LCD Color Monitor Lenovo D170 Wide Service Service Service Horizontal Frequency 30-80 kHz TABLE OF CONTENTS Description Page Description Page 5.2. Electrical Block Diagram………………………..16 Table Of Contents..……......…..1 6.Schematic…………………........…18 Revision List.…........……..2 6.1.Main Board..........18 Important Safety Notice.……......……..3 6.2.Power Board..……….…........23 1.Monitor Specification......………..4 7.PCB Layout..………………........25... -
Page 2: Revision List
17” LCD Color Monitor Lenovo D170 Wide Revision List Revision Date Revision History TPV Model May-21-07 First Version Release T77HRDNDRWH6NN T78GRDNCRWG2NC Aug 18, 2008 Add new BOM T78GRDNCRWG1NC... -
Page 3: Important Safety Notice
17” LCD Color Monitor Lenovo D170 Wide Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedures recommended by AOC and described in this service manual are effective methods of performing service operations. -
Page 4: Monitor Specification
17” LCD Color Monitor Lenovo D170 Wide 1. Monitor Specifications Items Descriptions Driving system TFT Color LCD Type HSD170MGW1-A01 Size 17" LCD Panel Pixel pitch 0.255mm(H) x 0.255mm (V) Viewable angle 160˚ (H) 160˚ (V) (CR>5) Response time (type) 8 ms for HSD panel Sync. -
Page 5: Lcd Monitor Description
17” LCD Color Monitor Lenovo D170 Wide 2. LCD Monitor Description The LCD monitor will contain a main board, a power board and a key 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 6: Operation Instruction
17” LCD Color Monitor Lenovo D170 Wide 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The control buttons are located on the right side of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. -
Page 7: Adjusting The Picture
17” LCD Color Monitor Lenovo D170 Wide 3.3 Adjusting the Picture OSD functions... - Page 8 17” LCD Color Monitor Lenovo D170 Wide...
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Page 9: Input/Output Specification
17” LCD Color Monitor Lenovo D170 Wide 4. Input/Output Specification 4.1 Input Signal Connector Pin No. Description Pin No. Description Red Input +5VDC Green Input Connection detect Blue Input H Sync Red GND V Sync Green GND Blue GND VGA connector layout... -
Page 10: Factory Preset Display Modes
17” LCD Color Monitor Lenovo D170 Wide 4.2. Factory Preset Display Modes PIXEL SYNC FRONT BACK FH(KHZ) TOTAL ACTIVE FOREQ TIMING WIDTH PORCH PORCH FV(HZ) (DOT/LINE) (DOT/LINE) (DOT/LINE) (DOT/LINE) (DOT/LINE) (MHZ) 31.469 25.175 NTSC VGA@ 60Hz 59.940 31.25 27.625 VGA@50Hz 50Hz 31.469... -
Page 11: Panel Specification
17” LCD Color Monitor Lenovo D170 Wide 4.3 Panel Specification 4.3.1 General Characteristics HannStar Display model HSD170MGW1-A is a color active matrix thin film transistor (TFT) liquid crystal display (LCD) that uses amorphous silicon TFT as a switching device. This model is composed of a TFT LCD panel, a driving circuit and a back light system. - Page 12 17” LCD Color Monitor Lenovo D170 Wide 4.3.4 Optical Characteristics...
- Page 13 17” LCD Color Monitor Lenovo D170 Wide 4.3.5 Parameter guide line for CCFL Inverter TFT LCD Module: Back Light Unit:...
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Page 14: Block Diagram
17” LCD Color Monitor Lenovo D170 Wide 5. Block Diagram 5.1 Software Flow Chat... - Page 15 17” LCD Color Monitor Lenovo D170 Wide 1) MCU initialize. 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.
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Page 16: Electrical Block Diagram
17” LCD Color Monitor Lenovo D170 Wide 5.2 Electrical Block Diagram 5.2.1 Main Board Crystal LCD Interface 24MHz (CN601) (X401) Scalar IC RTD2025L CLKOUT RTD2120L (Include ADC, OSD) (U401) (U501) EPR_SDA H sync EPR_SCL DDC1_SCL V sync DDC1_SDA D-Sub Connector... - Page 17 17” LCD Color Monitor Lenovo D170 Wide 5.2.2 Inverter/Power Board AC input Bridge Rectifier Transformer Rectifier diodes EMI filter and Filter Start Circuit: R904、R932、R933 CN902 Feedback Over Voltage Circuit Control IC Protect ON/OFF Output MOSFET Circuit Transformer Lamp Over ON/OFF...
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Page 18: Schematic
17" LCD Color Monitor Lenovo D170 Wide 6. Schematic 6.1 Main Board 715G2498-1-AO CN201 CMVCC CMVCC MVCC FB202 CMVCC BKLT-VBRI DIM# BKLT-EN C_PANEL_INDEX CMVCC PANEL_ID# Volume# FB201 VCC3 Volume# U201 Mute Mute VOUT 120 CONN C202 C204 AP1117E33LA C205 C203... - Page 19 17" LCD Color Monitor Lenovo D170 Wide DSUB_V R302 0R05 1/16W R301 100R 1/16W RTD_H R303 100R 1/16W RTD_V C302 R304 R305 C303 ZD302 ZD303 1/16W FB302 C304 UDZS5.6B UDZS5.6B 1/16W 22pF 22pF R306 100R 1/16W VGA_B+ RTD_B+...
- Page 20 17" LCD Color Monitor Lenovo D170 Wide DSUB_5V CMVCC CMVCC D401 C402 D402 BAV70 1uF 10V Reserve for powerBoard MCU_VCC CMVCC=3V Q401 PMBS3904 MCU_VCC_S MCU_VCC C404 R402 C412 R405 R406 R407 1K 1/16W R403 1uF 10V 0.22uF 3.9K 1/16W...
- Page 21 17" LCD Color Monitor Lenovo D170 Wide VCC3 FB502 120 C503 0.1uF/16V U501 1.8AVCC R1.8DVCC 150 OHM FB501 Q501 R1.8DVCC1 VCC3 MMBT2907AK Q502 RXO1- LVDS_O0 RXO0- V1/REXT TXO1- LVDS_O[0..9] R507 FB503 C507 C501 LVDS_O1 RXO0+ MMBT2907AK C502 120 C505...
- Page 22 17" LCD Color Monitor Lenovo D170 Wide LVDS Panel ( FFC Type ) CN601 RXO0- RXO0+ LVDS_O[0..9] RXO1- LVDS_O0 RXO0- RXO1+ LVDS_O1 RXO0+ RXO2- LVDS_O2 RXO1- RXO2+ LVDS_O3 RXO1+ LVDS_O4 RXO2- RXOC- LVDS_O5 RXO2+ RXOC+ RXO3- LVDS_O6 RXOC- RXO3+ LVDS_O7...
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Page 23: Power Board
17" LCD Color Monitor Lenovo D170 Wide 6.2 Power Board 715G2545-1-2 1/4W R918 L904 R941 R945 1K 1/4W 1K 1/4W +12V 1/4W R919 1.1uH BD901 C912 C922 KBP208G 0.001uF 470uF/25V ZD902 C930 1/4W R920 R944 RLZ13B R946 0.1uF... - Page 24 17" LCD Color Monitor Lenovo D170 Wide CN801 C839 T801 1000pF POWER X'FMR R817 R821 10K 1/10W 1K 1/10W 1% CONN R855 D805 33G8020 2E F 1/4W LL4148WP C819 F801 0.0022uF +12V C801 15pF/3KV 0R05 1/4W C802 R804 Q801...
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Page 25: Pcb Layout
17" LCD Color Monitor Lenovo D170 Wide 7. PCB Layout 7.1 Main Board 715G2498-1-AO... - Page 26 17" LCD Color Monitor Lenovo D170 Wide...
- Page 27 17" LCD Color Monitor Lenovo D170 Wide...
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Page 28: Power Board
17" LCD Color Monitor Lenovo D170 Wide 7.2 Power Board 715G2545-1-2... -
Page 29: Key Board
17" LCD Color Monitor Lenovo D170 Wide 7.3 Key Board 715G2515-1... -
Page 30: Maintainability
17" LCD Color Monitor Lenovo D170 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 31: Trouble Shooting
17" LCD Color Monitor Lenovo D170 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 100-240 is normal Reinsert or check the power section Measure U201 Pin2=3.3V... - Page 32 17" LCD Color Monitor Lenovo D170 Wide (2) No picture No picture Measure U201 PIN2=3.3V Replace U201 X401 oscillate waveforms are normal Replace X401 Check U401 Replace U401 Check if the sync signal from computer is output and video cable...
- Page 33 17" LCD Color Monitor Lenovo D170 Wide (3) White screen White screen Measure Q602 base X401 oscillate is low level? waveform is normal Replace X401 Check Q602, Q601 is broken Check U401 or CN601 solder? Replace U401 Check Correspondent Check reset circuit of component.
- Page 34 17" LCD Color Monitor Lenovo D170 Wide 8.2.2 Power/Inverter Board (1) No power Check ZD902 (-) = 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C907 (+) Check bridge rectified circuit and F901 circuit...
- Page 35 17" LCD Color Monitor Lenovo D170 Wide (2) Inverter Board No Power Check F801 = 12V Check adapter or MB Check ON/OFF signal Check Interface board Check IC801 pin12=12V Change Q805 or Q808 Check IC801 PIN5, 6 have the output of square wave at short Change IC801 Check Q802 PIN1, 3 have the output of square wave at short time.
- Page 36 17" LCD Color Monitor Lenovo D170 Wide 8.2.3 Keypad 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?
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Page 37: White-Balance Luminance Adjustment
= 313 ±20, y = 329 ±20, Y= 160 ±20cd/m 3. Into Factory mode of Lenovo D170 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 38 17" LCD Color Monitor Lenovo D170 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=140±20cd/m 4.
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Page 39: Monitor Exploded View
17" LCD Color Monitor Lenovo D170 Wide 10. Monitor Exploded View... -
Page 40: Bom List
17" LCD Color Monitor Lenovo D170 Wide 11. BOM List T77HRDNDRWH6NN Location Part No. For TPV Description 052G 1186 SMALL TAPE 089G414A18N LS POWER CORD 095G801412XE03 WIRE HARNESS 6P-6P 130MM 0M1G 130 5120 SCREW 0M1G1730 6120 SCREW 0Q1G 930 14 47 CR3... - Page 41 17" LCD Color Monitor Lenovo D170 Wide 052G 1211 B AL TAPE 052G 1207 A ALUMINIUM TAPE CN202 033G3802 6 WAFER CN201 033G3802 9 WAFER 9P RIGHT ANELE PITCH CN601 033G8027 24 H CONN W TO B12P*2 P*2.0 4505-2 040G 457624 1B...
- Page 42 17" LCD Color Monitor Lenovo D170 Wide C940 067G215S1023KV 105℃ 1000UF M 16V C915 067G215S4713KV EC 105℃ CAP 470UF M 16V L902 073G 174 65 H LINE FILTER L904 073G 253191 L CHOKE COIL 1.1UH CC-007802 L903 073G 253191 L CHOKE COIL 1.1UH CC-007802...
- Page 43 17" LCD Color Monitor Lenovo D170 Wide R308 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R306 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R303 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R301 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R410...
- Page 44 17" LCD Color Monitor Lenovo D170 Wide R406 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R407 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R604 061G0402473 RST CHIPR 47 KOHM +-5% 1/16W R439 061G0402682 RST CHIP 6K8 1/16W 5% R431 061G0402682...
- Page 45 17" LCD Color Monitor Lenovo D170 Wide FB201 071G 56K121 M CHIP BEAD FB301 071G 59K190 B 19 OHM BEAD FB302 071G 59K190 B 19 OHM BEAD FB303 071G 59K190 B 19 OHM BEAD FB501 071G1608151 5Y CHIP BEAD 1608 150 OHM±25%...
- Page 46 17" LCD Color Monitor Lenovo D170 Wide Q903 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q804 057G 417 6 PMBS3906/PHILIPS-SMT(06) Q812 057G 417 6 PMBS3906/PHILIPS-SMT(06) Q903 057G 417 12 T KEC 2N3904S-RTK/PS Q811 057G 417 12 T KEC 2N3904S-RTK/PS Q806 057G 417 12 T...
- Page 47 17" LCD Color Monitor Lenovo D170 Wide R826 061G0805102 RST CHIPR 1KOHM +-5% 1/8W R925 061G0805102 RST CHIPR 1KOHM +-5% 1/8W R943 061G0805102 RST CHIPR 1KOHM +-5% 1/8W R938 061G0805103 10 KOHM 1/10W R924 061G0805151 RST CHIPR 150 OHM +-5% 1/8W...
- Page 48 17" LCD Color Monitor Lenovo D170 Wide C928 065G0805103 32 10NF/50V/0805/X7R C924 065G0805104 32 CHIP 0.1U 50V X7R C930 065G0805104 32 CHIP 0.1U 50V X7R C916 065G0805104 32 CHIP 0.1U 50V X7R C824 065G0805104 32 CHIP 0.1U 50V X7R C905 065G0805104 32 CHIP 0.1U 50V X7R...
- Page 49 17" LCD Color Monitor Lenovo D170 Wide IC904 056G 158 10 T IC AZ431AZ-AE1 TO-92 BY AAC IC904 056G 158 12 KIA431A-AT/P TO-92 C938 065G 1K152 1T 1.5NF/1KV Z5F+-10% C906 065G 2K152 1T GP CERAMIC CAP C908 067G215Y2207KT CAP 105℃ 22UF M 50V KINGNICHI...
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Page 50: Different Parts List
17" LCD Color Monitor Lenovo D170 Wide 12. Different Parts List Diversity of T78GRDNCRWG2NC Compared with T77HRDNDRWH6NN Location Part No. for TPV Description U401 056G1125701 X WLNRWR7GNQ2 IC MCU RTD2120L-LF REALTEK 019G6014 1 TIE FOR STRAP 040G 45760850A CERTIFICATION LABEL... - Page 51 17" LCD Color Monitor Lenovo D170 Wide Diversity of T78GRDNCRWG1NC Compared with T77HRDNDRWH6NN Location Part No. for TPV Description U401 056G1125701 X WLNRWR7GNQ1 IC MCU RTD2120L-LF REALTEK 019G6014 1 TIE FOR STRAP 040G 45760850A CERTIFICATION LABEL 040G 581 26704 SHIPPING LABEL...