LC-32LE340/343
LC-40LE340/343
TROUBLESHOOTING
47
18.3 Stby-Microcontroller file update
1. Please copy Standby micro-controller file to USB root.
2. You have to use
Service Menu
for standby micro-controller files update.
3. To access the service menu push “menu” button and enter the password “4725” while
menu icons are on screen.
4. Plug the USB to TV.
5. Please choose “USB Operations” tab to update standby-micro sw file by using remote
controler.
6. Please wait approximately for 30 seconds
To reach the latest sw files please use;
https://www.vestelservice.com/100359/New_Projects/Sharp/Sharp_2011/9_Customer
_support/SW/
19.
Troubleshooting
A. No Backlight Problem
Problem:
If TV is working, led is normal and there is no picture and backlight on the panel.
Possible couses:
Backlight pin, dimming pin, backlight supply, stby on/off pin
BACKLIGHT_ON/OFF pin should be high when the backlight is ON. R185 must be low
when the backlight is OFF. If it is a problem, please check Q131 and the panel cables.
48
Dimming pin should be high or square wave in open position. If it is low, please check S32
for BRCM side and panel or power cables, connectors.
19. Troubleshooting
Problem:
If TV is working, led is normal and there is no picture and backlight on the panel
Possible causes:
Backlight pin, dimming pin, backlight supply, stby on/ off pin.
BACKLIGHT ON/OFF pin should be high when the backlight is ON. R185 must be low qhen the backlight
Is OFF. If it is a problem, please check Q131 ant the panel cables.
66
LC-40LS340
Содержание LC-40LS340E
Страница 27: ...11 c Absolute Ratings d Recommended Operating Conditions e Pin Functions 27 LC 40LS340 ...
Страница 29: ...13 Power Blocks on MB70 Below blocks are generated by step downs and regulators on MB70 board 29 LC 40LS340 ...
Страница 30: ...LC 32LE340 343 LC 40LE340 343 14 FAIRCHILD FAN2110 U19 U20 a General Description 30 LC 40LS340 ...
Страница 37: ...21 c BCM3556 Block Diagram 37 LC 40LS340 ...
Страница 46: ...LC 32LE340 343 LC 40LE340 343 30 b Pinning 46 LC 40LS340 ...
Страница 52: ...LC 32LE340 343 LC 40LE340 343 35 c Pinning 52 LC 40LS340 ...
Страница 57: ...39 15 LOW POWER CEC MICROCONTROLLER NEC uPD78F0503 Pinning 57 LC 40LS340 ...
Страница 59: ...b Block Diagram 59 LC 40LS340 ...
Страница 60: ...LC 32LE340 343 LC 40LE340 343 Figure 8 Pin Diagram 60 LC 40LS340 ...
Страница 74: ...LC 32LE340 343 LC 40LE340 343 57 Video Settings Audio Settings 74 LC 40LS340 ...
Страница 75: ...58 Options 1 Menu Options 2 Menu 75 LC 40LS340 ...
Страница 76: ...LC 32LE340 343 LC 40LE340 343 59 Tuner Settings Menu Source Settings Menu 76 LC 40LS340 ...
Страница 77: ...60 Diagnostic Menu 21 General Block Diagram 77 LC 40LS340 ...
Страница 78: ...LC 32LE340 343 LC 40LE340 343 NOTES 78 LC 40LS340 ...
Страница 100: ...LC 32LE340 343 LC 40LE340 343 NOTES 100 LC 40LS340 ...
Страница 121: ...NOTES 121 LC 40LS340 ...