LL-T1501A (serv.man7). Troubleshooting. — Sharp Monitor Service Manual (repair manual)

Model
LL-T1501A (serv.man7)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
18.72 KB
Type
PDF
Document
Service Manual
Brand
Device
Monitor / Troubleshooting.
File
ll-t1501a-sm7.pdf
Date

View Sharp LL-T1501A (serv.man7) Service Manual online

CHAPTER 4. TROUBLE SHOOTING
1. SYSTEM ARCHITECTURE
2. NO POWER 
     (AC power indicator is not lighted and no display)
POWER
OUTLET
POWER
SWITCH
POWER BD
COMPUTER
USB BD
SENSOR BD
KEY CTRL BD
INTERFACE
BD
INVERTER
BD
LCD MODULE
3. PC NO DISPLY OR DISPLAY ABORMAL
     (AC power indicator is lighted)
NO POWER
1. CHECK IF POWER CORD IS
    CONNECTED PROPERLY.
2. TURN ON POWER SWITCH.
POWER OK?
END
YES
NO
YES
NO
POWER OK?
REPLACE POWER CORD
AND RE-TEST
PEPLA CE
POWER BOARD
YES
YES
NO
NO
NO
END
YES
NO or BAD DISPLAY
DISPLAY OK?
DISPLAY OK?
CHECK THE SIGNAL CABLE
FROM MONITOR TO PC IS
CONNECTECD PROPERLY.
1. CONFIRM THE WIRE BD
    INSTALL TO LCD PANEL
    PROPERLY.
2. TRY ANOTHER KNOWN
    GOOD LCD PANEL
REPLACE I/F BD
OR TRY REPLACE
THE CABLE WHICH
FROM I/F BD TO
SENSOR BD
DISPLAY OK?
1. CONFIRM INVERTER BD IS GOOD.
2. CHECK ALL THER CABLES FRON
    INVERTER BD TO I/F BD ARE
    CONNECTED PROPERLY.
4. ADJUST CONTROL BUTTON NO
    FUNCTION
END
YES
NO
5. ADJUST BRIGHNESS NO FUNCTION
END
YES
NO
NO
YES
YES
NO
KEY CONTROL BUTTON
NO FUNCTION
CHECK THAT CABLE FRON I/F
BD TO KEY CTRL BD IS
CONNECTED PROPERLY
(REFER THE KEY CTRL BD &
I/F BD DISASSEMBLY)
FUNCTION OK?
FUNCTION OK?
REPLACE KEY CTRL
BOARD
REPLACE I/F BD OR
TRY REPLACE THE
CABLE WHICH
FROM I/F BD TO
KEY CTRL BD
FUNCTION OK?
FUNCTION OK?
REPLACE I/F BD OR
TRY REPLACE THE
CABLE WHICH
FROM I/F BD TO
SENSOR BD
1. CHECK THE OTHER FUNDION
    KEY AVAILABLE.
2. CHECK THE CABLE FROM I/F
    BD TO SENSOR BD IS
    CONNECTED PROPERLY.
PHSH HOT KEY NO
FUNCTION
1. REPLACE KEY CTRL
    BOARD
2. REPLACE SENSOR BD
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Download Sharp LL-T1501A (serv.man7) Service Manual (Repair Manual)

Here you can view online or download Sharp LL-T1501A (serv.man7) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp LL-T1501A (serv.man7) Monitor. Information contained in Sharp LL-T1501A (serv.man7) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).