HP L1710 User manual

17" LCD Color Monitor HP L1710
1
Service
Service
Service
HorizontalFrequency
24-83kHz
TABLE OF CONTENTS
Description Page Description Page
SAFETY NOTICE
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.......……..............................…........1
Revision List.…........................................……......2
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............……………............11
4.1. Input Signal Connector............………….................11
4.2. Factory Preset Display Modes......…..................11
5. Panel Specification.....………………..................12
5.1. General Feature…….....………………..................12
5.2. Optical Characteristics………………………………14
6. Block Diagram……...................…………................17
6.1 Software Flow Chart………………………………...17
6.2.Electrical Block Diagram……………..….......19
7. Schematic……………......................................21
7.1 Main Board....……….......................................21
7.2 Power Board.….……....................................25
7.3 Key Board…………………………………………..29
8.PCB Layout..…….......................................30
8.1. Main Board………........................................30
8.2. Power Board….......................................32
8.3. Key Board………............….......................34
9. Maintainability……….......................................35
9.1. Equipments and Tools Requirement..............35
9.2. Trouble Shooting……….............................36
9.2.1 Main Board…………..............................36
9.2.2 Power Board………..............................38
9.2.3 Key Board…………..............................40
10 White-Balance, Luminance adjustment...41
11.Mechanical Instructions……………..…...….......43
12. Monitor Exploded View………………..…....….......49
13. BOM List………………………………..……………50
14. Different Parts List.........…………..........................61
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17" LCD Color Monitor HP L1710
2
Revision List
Version Date Revision History TPV Model Name
T77GMSDKHNHPNNE
A00 Sep.-21-2007 Initial release
T77CMSDKHNHPNNE
A01 Oct.-16-2007 Add TPVDW Model in Item 14 T77CMSDBHNHPNNE
A02 Oct.-22-2007 Add TPVDW Model in Item 14 T77GMSDBHNHPNNE
A03 Nov.-06-2007 Add TPVDW Model in Item 14 T77CMSDQHNHPNNE
T77SMSDBHNHPNNE
T77CMSDLHNHPNNE
T77SMSDCHNHPNNE
A04 Nov.-09-2007 Add TPVDW Model in Item 14
T77CMSDCHNHPNNE
A05 Nov.-16-2007 Add TPVDW Model in Item 14 T77SMSDQHNHPNNE
T77CMSDTHNHPNNE
A06 Nov.-23-2007 Add TPVDW Model in Item 14
T77SMSDLHNHPNNE
T77SMSDKHNHPNNE
A07 Dec.-03-2007 Add TPVDW Model in Item 14
T77GMSDQHNHPNNE
LM170E03-TLL2 LPL
LM170E03-TLG2/TLG4
CLAA170EA07P 040
M170EG01 VD0B SZ
LTM170EU-L31 QBC
Add Second Panel list in Item 5
LTM170EU-L31 8TM
T77AMSDKHNHPNNE
T77SMSDKHNHPN1E
T77GMSDCHNHPNNE
T77AMSDQHNHPNNE
A08 Dec.-12-2007
Add TPVDW Model in Item 14
T77SMSDTHNHPNNE
T77SMSDDHNHPN1E
T77SMSDBHNHPN1E
T77SMSDDHNHAN1E
T77CMSDDHNHPNNE
A09 Jan.-19-2008 Add TPVDW Model in Item 14
T77AMSDLHNHPNNE
A10 Jan.-22-2008 Update Power Board in Item 7 715G2655 2 2
T77AMSDBHNHFNNE
T77SMSDQHNHPN1E
T77CMSDDHNHANNE
T77CMSDBHNHFNNE
T77GMSDTHNHPNNE
T77AMSDTHNHPNNE
T77AMSDCHNHPNNE
T77SMSDCHNHPN1E
A11 Apr.-18-2008 Add TPVDW Model in Item 14
T77SMSDTHNHPN1E
A12 Jul.-01-2008 Add Second Panel list in Item 5 CPT EA07P 8H4U/8H4V 8J4U/8J4V+MST
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17" LCD Color Monitor HP L1710
3
A13 Nov.-05-2008 Add TPVDW Model in Item 14
T77SMSDLHNHPN1E
T77GMSDLHNHPNNE
T77GMSDKHNHPN1E
T77GMSDBHNHPN1E
T77GMSDCHNHPN1E
T77SMSDDHNHPNNE
T77GMSDDHNHPN1E
T77GMSDTHNHPN1E
T77GMSDDHNHAN1E
T77GMSDLHNHPN1E
T77CMSDBHNHPN1E
T77CMSDTHNHPN1E
T77CMSDQHNHPN1E
T77CMSDCHNHPN1E
T77CMSDDHNHPN1E
T77CMSDKHNHPN1E
T77CMSDDHNHAN1E
T77CMSDLHNHPN1E
T77CMSDCHNHPN6E
T77GMSDBHNHFN1E
T77GMSDQHNHFN1E
T77CMSDQHNHFN1E
T77CMSDBHNHPN6E
T77AMSDKHNHPNCE
T77CMSDKHNHPN6E
T77GMSDBHNHPN6E
T77CMSDLHNHPN6E
T77CMSDTHNHPN6E
T77GMSDKHNHPN6E
T77SMSDDHNHANCE
T77SMSDDHNHPNCE
T77SMSDKHNHPNCE
T77SMSDTHNHPNCE
T77GMSDTHNHPN6E
T77SMSDBHNHPNCE
T77SMSDCHNHPNCE
T77SMSDBHNHFNCE
T77SMSDLHNHPNCE
T77SMSDBHNHFNNE
T77SMSDQHNHFNNE
T77GMSDPHNHPN1E
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17" LCD Color Monitor HP L1710
4
1. Monitor Specification
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17" LCD Color Monitor HP L1710
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2. LCD Monitor Description
The LCD Monitor will contain main board, power board, 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.
Video signal, DDC
Power Board
(
Include ada
p
ter board
)
Flat Panel and
CCFL backlight
Main Board RS232 Connector
For white balance
adjustment in
factory mode
HOST Computer
CCFT Drive.
AC-IN
110V-240V
Monitor Block Diagram
Keyboard
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17" LCD Color Monitor HP L1710
6
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.
-The power cord should be connected and insert to adaptor.
-Connect the video cable from the monitor to the computer VGA card.
-Press the power button to turn on the monitor, the power indicator will light up to Green.
3.2 Control Button
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17" LCD Color Monitor HP L1710
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3.3 Adjust the Picture
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17" LCD Color Monitor HP L1710
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17" LCD Color Monitor HP L1710
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17" LCD Color Monitor HP L1710
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17" LCD Color Monitor HP L1710
11
4. Input/Output Specification
4.1 Input Signal Connector
4.1.1 D-SUB connector
Pin Signal Pin Signal
1 Red Video 9 3.3/+5 V (from PC)
2 Green Video 10 Sync Ground
3 Blue Video 11 None
4 None 12 DDC Data
5 Ground (DDC Return) 13 Horizontal Sync
6 Red GND 14 Vertical Sync
7 Green GND 15 DDC Clock
8 Blue GND
VGA connector layout
PIN 1 PIN 5
PIN 11
4.2 Factory Preset Display Modes
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17" LCD Color Monitor HP L1710
12
5. Panel Specification
5.1 General Feature
LM170E03-TLL2 LPL/LM170E03-TLG2/TLG4
CLAA170EA07P 040
LTM170EU-L31 QBC / LTM170EU-L31 8TM
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17" LCD Color Monitor HP L1710
13
M170EG01 VD0B SZ
CPT EA07P 8H4U/8H4V 8J4U/8J4V+MST
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17" LCD Color Monitor HP L1710
14
5.2 Optical Characteristics
LM170E03-TLL2 LPL/LM170E03-TLG2/TLG4
CLAA170EA07P 040
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17" LCD Color Monitor HP L1710
15
LTM170EU-L31 QBC / LTM170EU-L31 8TM
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17" LCD Color Monitor HP L1710
16
M170EG01 VD0B SZ
CPT EA07P 8H4U/8H4V 8J4U/8J4V+MST
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17" LCD Color Monitor HP L1710
17
6. Block diagram
6. 1 Software Flow Chart
1
2
N
Y
5
Y
N
10
Y
N
12
Y
N
7
Y
N
6
4
3
8
9
14
11
13
Y
N
15
Y
N
16
17
19
Y
N
18
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17" LCD Color Monitor HP L1710
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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.
7) Are the AUTO and SELECT keys pressed?
8) Enter factory mode.
9) Save the power key status into EEprom.
Turn on the LED and set it to green color.
Scalar initialize.
10) In standby mode?
11) Update the lifetime of back light.
12) Check the analog port, are they’re any signals coming?
13) Does the scalar send out an interrupt request?
14) Wake up the scalar.
15) Are there any signals coming from analog port?
16) Display "No connection Check Signal Cable" message. And go into standby mode after the message
disappear.
17) Program the scalar to be able to show the coming mode.
18) Process the OSD display.
19) Read the keyboard. Is the power key pressed?
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17" LCD Color Monitor HP L1710
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6.2 Electrical Block Diagram
6.2.1 Scalar Board
Scalar HUM56AWL-LF
(Include ADC、OSD、MCU)
(U401)
EEPROM
(U402)
D-Sub Connector
(CN101)
EPR_SDA
EPR SCL
Panel Interface
(CN401)
EEPROM
M24C02
(U101)
DB15_SDA,
DB15 SCL
H sync
V sync
RGB
Crystal
X201
14.318Mhz
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17" LCD Color Monitor HP L1710
20
6.2.2 Inverter / Power Board
CN902
DIM
EMI filter Bridge
Rectifier
and Filter
Start Circuit
PWM
Control IC
Transformer Rectifier
diodes
AC input
12V
ON/OFF
Control
PWM
Control IC
Feedback
Circuit
LC
Resonance
Transformer MOSFET
Over
Voltage
Lamp
ON/OFF
Feedback
Circuit
Over
Voltage
Protect
5V
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