DOWNLOAD Sharp LL-T17D4H (serv.man6) Service Manual ↓ Size: 31.33 KB | Pages: 3 in PDF or view online for FREE

Model
LL-T17D4H (serv.man6)
Pages
3 Few pages! See other manuals at the bottom of the first or last page.
Size
31.33 KB
Type
PDF
Document
Service Manual
Brand
Device
Monitor / Trouble shooting
File
ll-t17d4h-sm6.pdf
Date

Sharp LL-T17D4H (serv.man6) Service Manual ▷ View online

LL-T17D4-H/B
TROUBLE SHOOTING
5 – 1
CHAPTER 5. TROUBLE SHOOTING
1. No Power
 YES  
 NO
NO 
YES
YES  
NO 
NO 
YES 
 
NO
 
YES 
Power board
failure.
F201, FB205
failure.
Is there 13V on CN201
connection ?
Is there 13V on C203
positive terminal ?
Is there 5V on C205
positive terminal ?
IC201 failure.
L201, D201 failure.
IC400, IC300 failure.
1. IC202, D205 failure.
2. IC203, D206 failure.
1.  Is there 3.3V on C233 positeve
     terminal ?
2.  2.5V on C213 positeve terminal ?
Is there any voltage
waveform on IC201
PIn2 ?
1. IC400 
Pin126 ,127 H& V s ync 
2. IC400 Pin122  
The s ignal cable 
is disconnected 
YES  
NO  
NO 
YES  
YES  
NO 
400  failure
YES 
NO 
Q203  failure 
YES  
NO 
YES  NO 
IC301, Q306 failure 
NO 
IC02, IC03, IC04, IC05
T01, T02 failure
IC01 failure 
Is the backlight lighted ?
Check signal cable is fully connected to CN400
Check wire harness is fully connected
between the Lamp and P
-I
 board
The cable is desconnected
Check that C205 positive is
5V, CN01 pin8 is 5V
Is there 5V on CN400
Pin 1~3
2. No Display on Screen (LED is green)
Check IC01 pin15
Panel cable, IC400
Panel failure
LL-T17D4-H/B
TROUBLE SHOOTING
5 – 2
3.  
Show “No Signal ” on  screen
NO 
 
IC400 failure  
YES 
NO 
YES 
NO 
Check CN602 Pin13, Pin14
Signal cable is not
fully connected
Check IC400 Pin127 same as
V-sync of input
Check IC400 Pin126 same as
H-sync of input
D618 failure
D619 failure
(Test patern: 32 Gray 1280 x 1024@60Hz)
 
YES  
NO  
The Signal cable  not  fully  
connected  
IC400 failure  
NO 
Check signal cable fully connected between
signal source and Interface Board
Check CN602 Pin1, 2, 3
RIN, GIN, BIN
D614, D615, D616 failure
4. color interference
5. Show "No Signal" on screen
YES
 
NO 
Check Signal cable fully
connected between signal
source and Interface Board
IC601, IC603, IC400 failure
The Signal cable not fully connected
LL-T17D4-H/B
TROUBLE SHOOTING
5 – 3
6. Function key can not work
YES
 
NO 
IC301 failure 
YES
NO 
KeyBoard failure
Check wire harness
is connected form I/F
board to Key
Check voltage of IC301
pin38, 39, 40, 41, 42, 43 while key is
pressing
INPUT
MENU
MODE/DOWN
LEFT
RIGHT
Power-ON/OFF
The key cable is disconnected
7. No Sound
Check IC801 Pin15, 16 is approximately 12V
Check IC801 Pin 12 is Low voltage
YES 
YES 
NO 
NO 
YES  
NO  
NO 
YES 
NO 
Earphone output normal
The speakers are failure
CN805 is failure
The cable is deiconnected
Check wire harness is connected
from CN804, CN802 to earphone board
IC801failure
D807 failure
IC301failure
(Test signal: Vrms sine waveform)
Adjust VOLUME to max and check
IC801 pin 14, 17
Display

Sharp LL-T17D4H (serv.man6) Service Manual ▷ Download

  • DOWNLOAD Sharp LL-T17D4H (serv.man6) Service Manual ↓ Size: 31.33 KB | Pages: 3 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp LL-T17D4H (serv.man6) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp LL-T17D4H (serv.man6) Monitor. Information contained in Sharp LL-T17D4H (serv.man6) 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.