Models: Hitachi 37LD6600, 37LD6600a LCD TV.
Backlight settings are different for each mode :
Dynamic: 00
Natural: 50
Cinema : 100
Reduce backlight settings in cinema mode from 100 to 59 as follows.
Enter service mode with the remote control,
Press ‘Menu’ button on the remote control.
Enter {4725 or 1267 or 1461} (There are 3 different software versions, only one code will work)
Service menu will appear, Select PIC adjust and enter with vol+.
S second service menu page will appear. The bottom adjustment in the menu is back light setting and will be set to 100.
From the mode heading select cinema mode.
Select back light and reduce the setting to 59.
To memorize and exit service mode press standby.
Hitachi 32LD7200: Distorted Sound
Backlight settings are different for each mode :
Dynamic: 00
Natural: 50
Cinema : 100
Reduce backlight settings in cinema mode from 100 to 59 as follows.
Enter service mode with the remote control,
Press ‘Menu’ button on the remote control.
Enter {4725 or 1267 or 1461} (There are 3 different software versions, only one code will work)
Service menu will appear, Select PIC adjust and enter with vol+.
S second service menu page will appear. The bottom adjustment in the menu is back light setting and will be set to 100.
From the mode heading select cinema mode.
Select back light and reduce the setting to 59.
To memorize and exit service mode press standby.
Hitachi 32LD7200: Distorted Sound
Sound is distorted when the set is first switched on.
After a while the fault
clears and works normally.Dry joints on components S627 and S629 near connector Pl308 on the main board.
Resolder components S627 and S629 and also check other components for dry joints near the connector.
Hitachi 32LD6200: Unit does not switch on or fails to power onUnit does not work, standby led not lighting.
Working of pixelworks controller IC21 depends on ambient temperature.
If the ic is heated externally the unit starts to work normally.
Replace ferrite bead l500 and l501 with a jumper wire.
Hitachi 32LD6200: Set fails to power on/switch on
Model/s: Hitachi 32LD6200_A_B_C LCD TV
If MB11-6 main board is used instead of the original main board MB11-2 the unit won't switch on.
Unit switches off immediately and a clicking noise comes from the power regulator board.
Replace the LVDS cable (P/N: VS30041693) and add a 47uf(P/N: VS30000396, CAP EL47uf16v) at power regulation board .
Hitachi: Picture display problem
Model/s: Hitachi 32LD6200_A_B_C, 32LD6600_A_B_C LCD TV
Symptom: Picture display problem
Cause: various picture problems can be caused by poor connection of the LVDS cable on connector Pl103 on the main board.
Remove LVDS cable from connector Pl103 and reinsert carefully.
Make sure both end of the LVDS cable are inserted properly between Pl103 and the display panel.
Hitachi: Intermittent colour or no color
Hitachi 28LD5200E LCD TV.
Colour drops out after the unit has been running for two to three hours.
Resolder capacitor C510 and other components in its vicinity.
Hitachi: Poor image quality or solarisation of image
Hitachi 26LD6600 & 26LD6600 A_B_C_D, 32LD8A10, 37LD6600, 37LD6600a & 37LD8500, 37LD8550, 37LD8600, 37LD8700c, 37LD8700CA, 37LD8700U, 37LD8700UA, 37LD8A20, 37LD8D10, 37LD8D20E, 37LD8D20U _ LCD TVs.
This phenomenon may be very intermittent and only displayed after a number of hours/days on soak.
Cause: The glue on the LVDS cable heats up over time and the properties change and creating a contact problem within the cable and the PCB. This causes permanent or intermittent picture problems.
