Toshiba 37HL17 Seine board questions and Issues!

[Shinju]

Re: Toshiba 37HL17 Seine board questions and Issues!

^ if only they shipped to the states

[Shinju]

Re: Toshiba 37HL17 Seine board questions and Issues!

I don't think that's a gamma chip fault. It's too sudden in how it cuts off, gamma chip fault is usually smooth. Looks like bad LVDS cable/seated poorly or main board is outputting wrong format.

Tom, I was thinking that too, but when I accessed the service menu to see if I can adjust the panel options to adjust the format/size the menu was all in hexadecimals and abbreviations so I didn't take that any further as I didn't want to go in blind and adjust something and mess it up further.

[budm]

Re: Toshiba 37HL17 Seine board questions and Issues!

Should he at least test the Gamma voltages to verify? beside this is AUOPTO panel/t-con

[Shinju]

Re: Toshiba 37HL17 Seine board questions and Issues!

Hello

I am bumping this up since I had some extra time to dissect this down to the T-con and snap some photos of it.

I noticed that the 2 boards with the perma attached ribbon cables on them were warped, is this normal? they seem like really thin PCB's I did flatten them back out and have them resting on the plastic brace they looked to be sitting on at one point by cutting up a cardboard coaster and wedging those board flat again.

It didn't fix anything as I thought the one might have been too close to the metal shell of the panel and getting some sort of interference.


Anyway here is the T-con board. I am new to all this so if someone would/could spoon feed me on how to check the gamma with a DMM please! What settings, what to probe ect I am all ears!

Thanks again in advance!

[Shinju]

Re: Toshiba 37HL17 Seine board questions and Issues!

Also if someone has access to a service manual for this unit that would be great! I would like to try the service menu idea someone had and try and change the panel settings to see if that fixes it before spending money on a new part/repair.

[Shinju]

Re: Toshiba 37HL17 Seine board questions and Issues!

I found a broken manual, I am cutting and pasting this here for future reference, Also my question I marked in bold below, are these the panel output setting that I would need to change to see if that would fix the soloarzation problem?


Service Mode

Entering to Service Mode



1.Set VOLUME to minimum and press MUTE button twice on Control.


↓

2.Press MUTE button again and hold button down.


↓

Service Mode display
3.While holding the MUTE button, press MENU button on TV set.




Key Function in the Service Mode

The following key entry during display of adjustment menu provides special functions.

Selection of the adjustment items CH (on TV or remote control)
Change of the data value Volume +/- (on TV or remote control)
Adjustment menu mode ON/OFF MENU button (on remote control)
Reset the count of operating
protect circuit to "00" CALL + CH button on TV ()
"RCUT" selection 1 button
"GCUT" selection 2 button
"BCUT" selection 3 button
"CNTX" selection 4 button
"COLC" selection 5 button
"UVTT" selection 6 button
Self diagnostic display ON/OFF 9 button



Selecting the Adjusting Item

Every pressing of CH button in the service mode changes the adjustment items in the order of table below. ( button for reverse order)



SETTING & ADJUSTING DATA

[ SERVICE MODE ]

ADJUSTING ITEMS AND DATA IN THE SERVICE MODE:

Note:
(1) The image system data may be different for each image format chosen. The factory preset data value is indicated in the table.
(a) HOST-MICRO EEPROM data
DRAMA0543 for HL series
(b) TV-MICRO EEPROM data
DRAMA0548 for HL series

(2) Prior to changing any board containing an EEPROM IC, the exisiting data in each image format should be copied down as a precautionary measure.






Item Name of adjustment Data
HL series
R-CUT R CUTOFF 00H (a)
G-CUT G CUTOFF 00H (a)
B-CUT B CUTOFF 00H (a)
R-DRV R DRIVE 64H (a)
G-DRV G DRIVE 64H (a)
B-DRV B DRIVE 64H (a)
*BRTC BRIGHTNESS CENTER 78H (a)
*COLC COLOR CENTER C0H (a)
*UVTT BASE BAND TINT 80H (a)
*CNTX CONTRAST MAX FFH (a)
SHRC SHARPNESS CENTER 60H (a)
VBIS VBI Setting 64H (a)
CC Closed Caption 64H (a)
ID1 VBID 64H (a)
GG Gemstar 00H (a)
BYBK B-Y OFF SET 00H (a)
RYBK R-Y OFF SET 00H (a)
OPT1 TV SET OPTION 1 00H (b)
OPT2 TV SET OPTION 2 25H (b)
OPT3 TV SET OPTION 3 00H (b)
OPT4 TV SET OPTION 4 25H (b)
OPT5 TV SET OPTION 5 01H (b)
SET-ID MODEL ID *1 (b)
MAGC AGC of MTS decoder 00H (b)
VO1 Volume1 Data 5FH (b)
V25 Volume25 Data ADH (b)
V50 Volume50 Data DFH (b)
V75 Volume75 Data F9H (b)
V100 Volume100 Data FFH (b)
VOLBS Correction Volume at DTV 00H (b)
VOLST Correction Volume at Stereo/SAP of ATV 00H (b)
EVOL Reduce Volume For Bassboost (Nonuse) 00H (b)
VOLX Volume Limiter For Hotel 64H (b)
BASX Bass Max Data 1AH (b)
TREX Treble Max Data 1AH (b)
TONN Tone Min Data 08H (b)
BASC Bass center Data 01H (b)
TREC Treble center Data 03H (b)
EBAS Add Bass on FOCUS 00H (b)
ETRE Add Treble on FOCUS 01H (b)
WON2 Bass Reducer 11H (b)
ALS ALS point 00H (b)
ALOF Reduce in ALL (wow, TruSurround) off 01H (b)
VSTB Reduce Volume For Stable Sound 00H (b)
VS3D Reduce Volume For SRS3D 01H (b)
VFCS Reduce Volume For FOCUS 03H (b)
VTBH Reduce Volume For TruBass High 00H (b)
VTBL Reduce Volume For TruBass Low 00H (b)
VVDD Reduce Volume For Dolby F3H (b)
WFCS FOCUS Level 01H (b)
WWSP SRS 3D Level 02H (b)
WTBH TruBass High Level 03H (b)
WTBL TruBass Low Level 02H (b)
VOLM Volume coefficient at 1/2 Mute 32H (b)

Factory preset data will be loaded after setting Model ID data.

Note: (*1) SET-ID data is subject to the models.
Refer to Setting Panel Option Data and SET-ID Data for detail.



Adjusting the Data

Pressing of VOLUME or button will change the value of data in the range from 00H to FFH. The variable range depends on the adjusting item.



Setting Panel Option Data and SET-ID Data
1.Panel option data is subject to OP4 and OP5.
Enter to service mode and select menu of OP4 or OP5 by pressing P or P during
Display of adjustment menu. After selecting OPT4 or OPT5, press + or - to set OPT4 or OPT5 value as table below.
2.Whenever using new signal board to the set, setting the SET-ID data according to panel option data.

Set Size Panel Maker OPT4 OPT3 OPT5 SET-ID
TOP Running change TOP Running change
HL67 26 SAMSUNG - 63h - 00h 01h A3h
32 SHARP SAMSUNG 25h 65h 00h 01h A4h
37 AUO SHARP 46h 26h 00h 01h A5h
42 LPL - 17h - 00h 01h A6h
HL37 32 SHARP SAMSUNG 25h 65h 00h 01h A4h
HL17 32 SHARP SAMSUNG 25h 65h 00h 01h A4h
37 AUO SHARP 46h 26h 00h 01h A5h
42 LPL - 17h - 00h 01h A6h


Exit from Service Mode

Pressing POWER button to turn off the TV once.



Self Diagnostic Function
1.Press "Recall" button on Remote Control during display of adjustment menu in the service mode. This will bring up the "S" in the right corner of screen. Now press "9" button on remote.
The diagnosis will begin to check if interface among IC's is executed properly.
2.During diagnosis, the following displays are shown.





(1) Version information of TV-MICRO : Display 1 byte data.
(2) Version information of TV-MICRO EEPROP : Display 1 byte data.
(3) Version information of DVD MPU : HL series not used.
(4) Revision of image file : LCD Model not used.
(5) Total brightness hour of TV. : Display 4 bytes data.
(6) Operation hour of TV in LOW mode : Display 4 bytes data.
(7) Operation hour of TV in HIGH BRIGHT mode : LCD Model not used.
(8) Number of times of TV ON/OFF. : LCD Model not used.
(9) Temperature display of thermo-Sensor. (DMD) : LCD Model not used.
(10) Temperature display of thermo-Sensor. (LAMP) : LCD Model not used.
(11) DMD Engine System status : LCD Model not used.
(12) TV-MICRO System status : Not used
(13) IIC-BUS status
Bus line normal is "None" displayed.
When it is abnormal, the block name is displayed as follows.
"SCL-GND" (Red indication) : SCL-GND short circuit
"SDA-GND" (Red indication) : SDA-GND short circuit
"SCL-SDA" (Red indication) : SCL-SDA short circuit
"NG : MTS"
"NG : APRO"
"NG : AVSW"



LED Indication

The yellow, blue and red/green LED lights on the TV (at the bottom center of the TV) indicate the TV's status, as described below:

Note: If the TV loses A/C power (e.g., a power outage occurs or the power cord is unplugged), when power is restored, the yellow LED will blink while the TV is booting until the remote control is usable. This is normal and is not a sign of malfunction.




LED Indication Condition
1 Green and Yellow are off. Power supply OFF. (AC)
2 Green and Yellow are off. Power supply OFF. (Stand by)
3 Green is on (solid). The TV is operating properly.
4 Yellow is on (solid). Power-On Mode set into the quick operation.
The power is supplied to Digital Board only.
5 Green blinks. Fan stop detection.
6 Green blinks slowly. Abnormal operation of BUS line.
Turn the TV off and unplug the power cord, then plug the power cord in again and turn the TV on.
7 Green blinks quickly. Power Protection Detection.
Turn the TV off and unplug the power cord, then plug the power cord in again and turn the TV on.
8 Yellew blinks 3 times. The TV is rebooting.
Wait several seconds until the yellow LED stops blinking.
9 Green is on (solid).
Yellow is on (solid). Upgrading in progress.
10 Green is on (solid).
Yellow is off. Upgrading succesful.
11 Green is off.
Yellow is on (solid).

[Shinju]

Re: Toshiba 37HL17 Seine board questions and Issues!

So I tinkered with the option 1 2 3 4 5 and I changed some values but it didn't seem to change anything. At one point the panel shut off in the middle of changing a value before I had the chance to write it down. It would only stay on for a minute and the yellow/green light both flashed at the same time. I finally got it to stay on and adjusted the value back to what I thought it was.

I am confused as to the service manual says to push P on the remote but my remote doesn't have P on it so I am not sure if p means something else.


Lol I am at a loss!

[Shinju]

Re: Toshiba 37HL17 Seine board questions and Issues!

Fixed!

So to make a long story short, I took all the settings via service menu and reset them to default as listed above, this alone did not really do much but what it triggered as a change in the RGB cut and drive options, so I took each item and adjusted them till the colors just snapped together on the cut settings, I still had a tiny bit of sparkling so I tweaked them a little bit more and boom it was back to normal.

I also adjusted the drive settings down a bit as the colors were super saturated and I think I got it looking pretty good. Might borrow a tuning bluray and do a bit more color tuning.


But as far as it goes it's done!

I think what happend someone swapped out a mainboard and turned it on and noticed the solarized picture and thought it was done for and ditched it at the thrift store. This was one of the first LCD panels I bought when I started this repair/ recap hobby so I am glad to see this one fixed. I really like the toshiba Regza display, I have a 32" in the bedroom it is one of the best looking LCD panels for its time.


Thanks again for all the help and suggestions!

If anyone is interested in my settings for future reference for the 37HL17 I can do so.

-jeremy

[MRD77]

Re: Toshiba 37HL17 Seine board questions and Issues!

Hi Shinju,

I wondering if you can post the setting you used on your 37HL17. I think my friends TV has the same problem. His panel is the AUO Optronics. I hope its the same as your set. I don't have the service manual so I don't know exactly how the hex values are adjusted for the settings. Thank you for your help.

-Gary