HPC LCDM707, LCDM917, PCM707 Schematic

HPC model Service Manual

Factory Model : 17”19”LCD MONITOR

TABLE OF CONTENTS

I． SAFETY PRECAUTIONS

II．PRODUCT SAFETY NOTICE

III．SERVICE NOTES

V． SERVICE TOOL & EQUIPMENT REQUIRED

VI． SPECIFICATIONS

VII．LCD MONITOR BLOCK DIAGRAM

VIII．TROUBLE SHOOTING FLOW CHART

IX . LCD MONITOR ADJUSTMENT

X． USER SAFETY NOTICE

HPC electronic(shenzhen)co.,LTD

January 2007

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I．SAFETY PRECAUTIONS

This monitor is manufactured and tested on a ground principle that a user's safety comes first. However, improper use or
installation may cause damage to the monitor as well as to the user. Carefully go over the following WARNINGS before
installing and keep this guide handy.

WARNINGS:

1． This monitor should be operated only at the correct power sources indicated on the label on the rear end of the monitor. If
you're unsure of the power supply in your residence, consult your local dealer or power company.

2． Use only the special power adapter that comes with this monitor for power input.

3．Do not try to repair the monitor yourself, as it contains no user-serviceable parts. Only a qualified technician should repair
this monitor.

4．Do not remove the monitor cabinet. There are high-voltage parts inside that may cause electric shock to human bodies,
even when the power cord is unplugged.

5．Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
6 Put your monitor only in a clean, dry environment. If it gets wet, unplug the power cable immediately and consult your
service technician.

7．Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply non-ammonia based cleaner
onto the cloth, not directly onto the glass screen.

8.Do not place heavy objects on the monitor or power cord.

II． PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them
cannot necessarily be obtained by using replacement components rated for higher voltages, wattage, etc. Before replacing any
of these components read the parts list in this manual carefully. The use of substitute replacement parts that do not have the
same safety characteristics as specified in the parts list may create shock, fire, or other hazards.

III．SERVICE NOTES

1． When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.

2． When replacing a high wattage resistor (more than 1W of metal oxide film resistor) in circuit board, keep the resistor

about 5mm away from circuit board.

3． Keep wires away from high voltage, high temperature components and sharp edges.

4． Keep wires in their original position so as to reduce interference.

5． Usage of this product please refers to also user's manual.

V. SERVICE TOOL & EQUIPMENT REQUIRED

1. SIGNAL GENERATOR OR PC

2. SCREW DRIVER

3. IRON

4. ABSORBER

5. SOLDER

VI．SPECIFICATIONS

5.1 PRODUCT SPECIFICATIONS

LCD panel 17’’/19" TFT

2

Power management Energy Star compliant VESA

DPMS compatible

Displayable Resolution 1024 x 1280 75Hz (max.)
Pixel Dimension 0.264 (V) x 0.264 (H) mm /0.296(H) / 0.296(V) mm
LCD Display Color 8bit
Viewing Angle Horizontal: ± 80
Contrast Ratio 500 : 1
Brightness 300 cd/m2
Response Time 12ms
Active Display Area 337.920 (H) x 270.336(V) /376.32mm x 301.056mm

Temperature Operating 0°C ~ +35°C

Storage -20°C ~ +60°C
Compliance CE, FCC ,CB,CCC

Power Input Voltage AC 110-240V
Consumption 40w(max)
Audio 2w(L) + 1(R)

5.2 SUPPORTING TIMING CHART（timing chart）

o

H Vertical: ±80o V

MODE
L

support frequency

H-

ynnc（K

bandwidth

（MHZ）

Signal polarity

H V

HZ）

1 VGA 640 X 480 60Hz 31.47 25.175 - +

2 VESA 640 X480 72Hz 37.86 31.5 - +

3 VESA 640 X 480 75Hz 37.5 31.5 - +

4 VGA 720 X 400 70HZ 31.47 28.322 - +

5 VESA 800 X 600 60Hz 37.88 40 + +

6 VESA 800 X 600 72Hz 48.08 50 + +

7 VESA 800 X 600 75Hz 46.88 49.5 + +

8 MAC 832 X 624 75Hz 49.72 57.28 - +

9 VESA 1024 X 768 60Hz 48.36 65 - -

10 VESA 1024 X 768 70Hz 56.48 75 - -

11 VESA 1024 X 768 75Hz 60.02 78.75 + +

12 MAC1152X 870 75Hz 68.68 100 - -

13 VESA1280X1024 60Hz 60 108 + +

14 VESA1280 X 1024 75Hz 80 135 + +

5.3 Pin - Assignment of 15-pin D-sub:

CONNECTOR SIGNAL DESCRIPTION

1.RED 2.GREEN 3.BLUE 4.NC 5.GND

6.GND 7.GND 8.GND 9. NC 10.GND

3

11.NC 12.SDA 13.H.hync 14.V.hync 15.SCL

Check on/Off

Replacing AC Power

Check

VII: BLOCK DIAGRAM

VIII:TROUBLE SHOOTING FLOW CHART

7.1 No power.

Check peripheral
electrocircuit

NG

OK

Cn6 pin1 12V

OK

OK

NG

Check U2 mcu
touch area.

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