DOWNLOAD Sharp LL-T1520 (serv.man5) Service Manual ↓ Size: 15.67 KB | Pages: 2 in PDF or view online for FREE

Model
LL-T1520 (serv.man5)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
15.67 KB
Type
PDF
Document
Service Manual
Brand
Device
Monitor / Chapter 4 - Troubleshooting.
File
ll-t1520-sm5.pdf
Date
PREV: Sharp LL-T1520 (serv.man4) Service Manual

Sharp LL-T1520 (serv.man5) Service Manual ▷ View online

PC-UM10M
LL-T1520-H/B LL-T1620-H/B   TROUBLE SHOOTING
4 – 2
(No)
(Yes)
(Yes)
(No)
(Yes)
Check the power unit, the power cable, their 
connection, the DC+12V power line, and IP1.
 
Is CN10-6P at DC+1.0V or below when the 
brightness is maximum ?
Is the inverter PWB normal ?
Check the lamp in the LCD module. 
Replace the inverter PWB unit. 
(No)
(Yes)
(No)
Is FB23 at DC+12V ?
Is CN10-5P at H level  (DC+3.3V) ?
Check IC16 peripheral circuits. 
Check BLON signal and CN10 peripheral 
circuits. 
(No)
(Yes)
(No)
(Yes)
Check the analog signal cable, CN2 
peripheral, and IC peripheral circuits. 
Is CN12-1P at DC+12V ? (LL-T1620H/B only)
Check IP4 and IC25 peripheral circuits. 
(Yes)
(No)
Is CN9-39P at DC+5V ? (LL-T1520H/B only)
Check IP2 and IC25 peripheral circuits. 
(No)
Are signals at IC13-17, 24, 40P normal ?
Are signals at R19 and R71 normal ?
Check CN2, IC5, and IC13 peripheral circuits.
2
3
(Yes)
(No)
Is the signal between IC13 and CN9,C11 normal ?
(LL-T1520H/B only)
Check IC13, CN9, and 11 peripheral circuits. 
(Yes)
(No)
Is the signal between IC13 and IC27 normal ?
(LL-T1620H/B only)
Check IC13 and IC27 peripheral circuits. 
(Yes)
(No)
Is the signal between IC27 and CN12 normal ?
(LL-T1620H/B only)
Check IC27 and CN12K peripheral circuits. 
(Yes)
(No)
Are the cables of the LCD unit normal ?
Check the cables and related parts. 
(Yes)
Replace the LCD unit.
PC-UM10M
LL-T1520-H/B LL-T1620-H/B   TROUBLE SHOOTING
4 – 2
(No)
(Yes)
(Yes)
(No)
(Yes)
Check the power unit, the power cable, their 
connection, the DC+12V power line, and IP1.
 
Is CN10-6P at DC+1.0V or below when the 
brightness is maximum ?
Is the inverter PWB normal ?
Check the lamp in the LCD module. 
Replace the inverter PWB unit. 
(No)
(Yes)
(No)
Is FB23 at DC+12V ?
Is CN10-5P at H level  (DC+3.3V) ?
Check IC16 peripheral circuits. 
Check BLON signal and CN10 peripheral 
circuits. 
(No)
(Yes)
(No)
(Yes)
Check the analog signal cable, CN2 
peripheral, and IC peripheral circuits. 
Is CN12-1P at DC+12V ? (LL-T1620H/B only)
Check IP4 and IC25 peripheral circuits. 
(Yes)
(No)
Is CN9-39P at DC+5V ? (LL-T1520H/B only)
Check IP2 and IC25 peripheral circuits. 
(No)
Are signals at IC13-17, 24, 40P normal ?
Are signals at R19 and R71 normal ?
Check CN2, IC5, and IC13 peripheral circuits.
2
3
(Yes)
(No)
Is the signal between IC13 and CN9,C11 normal ?
(LL-T1520H/B only)
Check IC13, CN9, and 11 peripheral circuits. 
(Yes)
(No)
Is the signal between IC13 and IC27 normal ?
(LL-T1620H/B only)
Check IC13 and IC27 peripheral circuits. 
(Yes)
(No)
Is the signal between IC27 and CN12 normal ?
(LL-T1620H/B only)
Check IC27 and CN12K peripheral circuits. 
(Yes)
(No)
Are the cables of the LCD unit normal ?
Check the cables and related parts. 
(Yes)
Replace the LCD unit.
PC-UM10M
LL-T1520-H/B LL-T1620-H/B   TROUBLE SHOOTING
4 – 2
(No)
(Yes)
(Yes)
(No)
(Yes)
Check the power unit, the power cable, their 
connection, the DC+12V power line, and IP1.
 
Is CN10-6P at DC+1.0V or below when the 
brightness is maximum ?
Is the inverter PWB normal ?
Check the lamp in the LCD module. 
Replace the inverter PWB unit. 
(No)
(Yes)
(No)
Is FB23 at DC+12V ?
Is CN10-5P at H level  (DC+3.3V) ?
Check IC16 peripheral circuits. 
Check BLON signal and CN10 peripheral 
circuits. 
(No)
(Yes)
(No)
(Yes)
Check the analog signal cable, CN2 
peripheral, and IC peripheral circuits. 
Is CN12-1P at DC+12V ? (LL-T1620H/B only)
Check IP4 and IC25 peripheral circuits. 
(Yes)
(No)
Is CN9-39P at DC+5V ? (LL-T1520H/B only)
Check IP2 and IC25 peripheral circuits. 
(No)
Are signals at IC13-17, 24, 40P normal ?
Are signals at R19 and R71 normal ?
Check CN2, IC5, and IC13 peripheral circuits.
2
3
(Yes)
(No)
Is the signal between IC13 and CN9,C11 normal ?
(LL-T1520H/B only)
Check IC13, CN9, and 11 peripheral circuits. 
(Yes)
(No)
Is the signal between IC13 and IC27 normal ?
(LL-T1620H/B only)
Check IC13 and IC27 peripheral circuits. 
(Yes)
(No)
Is the signal between IC27 and CN12 normal ?
(LL-T1620H/B only)
Check IC27 and CN12K peripheral circuits. 
(Yes)
(No)
Are the cables of the LCD unit normal ?
Check the cables and related parts. 
(Yes)
Replace the LCD unit.
PC-UM10M
LL-T1520-H/B LL-T1620-H/B   TROUBLE SHOOTING
4 – 2
(No)
(Yes)
(Yes)
(No)
(Yes)
Check the power unit, the power cable, their 
connection, the DC+12V power line, and IP1.
 
Is CN10-6P at DC+1.0V or below when the 
brightness is maximum ?
Is the inverter PWB normal ?
Check the lamp in the LCD module. 
Replace the inverter PWB unit. 
(No)
(Yes)
(No)
Is FB23 at DC+12V ?
Is CN10-5P at H level  (DC+3.3V) ?
Check IC16 peripheral circuits. 
Check BLON signal and CN10 peripheral 
circuits. 
(No)
(Yes)
(No)
(Yes)
Check the analog signal cable, CN2 
peripheral, and IC peripheral circuits. 
Is CN12-1P at DC+12V ? (LL-T1620H/B only)
Check IP4 and IC25 peripheral circuits. 
(Yes)
(No)
Is CN9-39P at DC+5V ? (LL-T1520H/B only)
Check IP2 and IC25 peripheral circuits. 
(No)
Are signals at IC13-17, 24, 40P normal ?
Are signals at R19 and R71 normal ?
Check CN2, IC5, and IC13 peripheral circuits.
2
3
(Yes)
(No)
Is the signal between IC13 and CN9,C11 normal ?
(LL-T1520H/B only)
Check IC13, CN9, and 11 peripheral circuits. 
(Yes)
(No)
Is the signal between IC13 and IC27 normal ?
(LL-T1620H/B only)
Check IC13 and IC27 peripheral circuits. 
(Yes)
(No)
Is the signal between IC27 and CN12 normal ?
(LL-T1620H/B only)
Check IC27 and CN12K peripheral circuits. 
(Yes)
(No)
Are the cables of the LCD unit normal ?
Check the cables and related parts. 
(Yes)
Replace the LCD unit.
Display

Sharp LL-T1520 (serv.man5) Service Manual ▷ Download

  • DOWNLOAD Sharp LL-T1520 (serv.man5) Service Manual ↓ Size: 15.67 KB | Pages: 2 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp LL-T1520 (serv.man5) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp LL-T1520 (serv.man5) Monitor. Information contained in Sharp LL-T1520 (serv.man5) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.

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LL-T1520 (serv.man5) Service Manuals

Preview DownloadPagesSize
LL-T1520 (serv.man2) Chapter 1 - Outline of the product, nomenclature and function. Service Manual 4 105.16 KB
LL-T1520 (serv.man16) Parts layout Service Manual 2 1.66 MB
LL-T1520 (serv.man15) Circuit diagram Service Manual 12 869.28 KB
LL-T1520 (serv.man14) Block diagram Service Manual 1 20.74 KB
LL-T1520 (serv.man13) Troubleshooting Service Manual 2 15.67 KB
LL-T1520 (serv.man12) Disassembly and assembly Service Manual 3 348.9 KB
LL-T1520 (serv.man11) Connection, adjustment, operation and functions Service Manual 5 175.64 KB
LL-T1520 (serv.man10) Outline of product, nomenclature and function Service Manual 4 105.16 KB
LL-T1520 (serv.man9) Contents Service Manual 1 15.08 KB
LL-T1520 (serv.man8) Complete Service Manual 31 3.15 MB
LL-T1520 (serv.man7) Chapter 6 - Circuit diagram. Service Manual 12 869.28 KB
LL-T1520 (serv.man6) Chapter 5 - Block diagram. Service Manual 1 20.74 KB
LL-T1520 (serv.man4) Chapter 3 - Diassembly and assembly. Service Manual 3 348.9 KB
LL-T1520 (serv.man3) Chapter 2 - Connection, adjustment, operation, and functions. Service Manual 5 175.64 KB
LL-T1520 Contents Service Manual 1 15.08 KB
LL-T1520 (serv.man18) User Manual / Operation Manual 127 3.06 MB
LL-T1520 (serv.man19) User Manual / Operation Manual 31 636.29 KB
LL-T1520 (serv.man17) including exploded views Service Manual / Parts Guide 11 265.15 KB
LL-T1520 (serv.man21) Upgrade of EDID flash writing data (for services) Service Manual / Technical Bulletin 17 768.45 KB
LL-T1520 (serv.man22) Measures to prevent blackout when an analogue SOG signal is input Service Manual / Technical Bulletin 4 184.97 KB
LL-T1520 (serv.man20) LLT1520 LLT1620 Driver Driver / Update 51.03 KB

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