SONY SXRD KDS-50XBR1 KDS-60XBR1 SERVICE MODE Electrical H/V Center Adjustment.

         

                                               [2]

• H|V center adjustment may be necessary if optical block is replaced.  Unlike previous G/W models H/V center is adjusted by the Rook ICs on the C board.
• Since adjustments takes place at the end of the video processing chain there is no need to adjust H\V Center for multiple Wide Modes.
• Use the below service items to adjust.

1. 1 TG [Device]:  VST_POS for Vertical Center.  Initial Data = 12.

• Adjust [1-25] Primary item for V center adjustment.
• First try to adjust with VST_POS if you must change more than +13 | -11 then start to change with FMDVPOS.  If "VST_POS is changed greater than these limits then there could be issues with Gamma.
• HST_POS [for H center];  Initial data = 261.
• 17 FMD (Device):  FMDVPOS (Secondary method for Vertical center) Initial data = 8
• Adjust [1-17] (Additional item for V center adjustment)
• Check HV center for mono-scope pattern with 'Wide" mode set to Full.  (QM Cross hair test pattern #11 can be used if no other source is available.
• To adjust H\V center;
• Enter service mode as described in the earlier post.
• Press [Jump] button on the remote 'thrice' to select "PANEL" service mode.
• Scroll Device "TG" by pressing [2] button one time.
• Once the Device "TG", scroll to item [4] "VST_POS" to adjust vertical center.
• Use [3] and [6] buttons to adjust as needed.
• Scroll to item '5' "HST_POS" to adjust horizontal center.
• Use [3] & [6] buttons to adjust as needed.  Note:  After adjusting press [Mute] > [Enter] to write new settings into memory.

LAMP TIMER

To check lamp timer take the following steps:

1. Enter Service Mode. [Described in the previous post]
2. Press the [Jump] button thrice to arrive the 'PANEL' service mode.
3. Once in 'panel service mode' press the [2] or [5] button, to arrive at Device 20 "Timer".
4. Lamp time is shown to the right.

TO RESET LAMP TIMER

• Scroll to item [1] LMPRST by pressing [1] button.
• Toggle the data from [0] to [1]  with the {3} button, and write the changes by pressing [mute] > [enter].
• To check operation time, scroll to item '2' OPERAT by pressing the [1] button.  

The lamp and operation time are written to NVM after power off is performed by the remote or front panel button.  If AC ON/OFF is performed lamp and operation time accrued since last power On are NOT written in the NVM.

SYSTEM STATUS

To view the system status page:

• 
  Enter service mode [display => 5 + Vol + => Power].
• Press [Jump] button once to arrive at DM Service Mode.
• Press [3] button once to display the system status screen.

Color code chart:

Color	Meaning (Standard)
WHITE	LABEL TEXT
CYAN	INFORMATION
GRAY	DISABLED
GREEN	Ok/ Good/Valid
YELLOW	WARNING
RED	ERROR

CONFIRMING TUNING STATUS

• 
  Enter service mode.
• Press [Jump] button once to arrive at DM Service Mode.
• Press [3] button "7" times to display the Front End Screen.

Key items to check include:

1. Verify the In Band OOB status are "LOCK".
2. Signal to Noise Ratio [SNR]:  There is no hard value to confirm signal strength is at an acceptable level but as a rule of thumb a SNR  of >20 is usually acceptable.  SNR of 25->30 is preferred.
3. If uncorrected errors is high, it could indicate a weak of noisy signal is being received and the DMB is unable to correct.  There is no hard value or threshold value.

CONFIRMING HOST ID AND I.LINK STATUS

• Enter the service mode.
• Press the [Jump] button once to arrive DM service mode.
• Press [3] button "6" times to display the ATSC module Boot Diagnosis.

USER/SERVICE DATA MEMORY STICK READ | WRITE FEATURE

• The digital module service mode includes a feature that will allow the User \ Service data  stored within the digital module to be read/written to a memory stick.  This feature allows for a module to be replaced by Service Personal while preserving the user's TV confutation data.  This feature will store/load both the factory default data, as well as the user's current settings. 

WRITING USER | SERVICE DATA TO MEMORY STICK

When DMB is replaced user data can be saved to memory stick as follows:

• Enter Service Mode.
• Once in service mode, press the [Jump] button on the remote to enter DM service mode.  you will be in the "QM" information screen.
• Scroll down to item "12' [WUSR] using the [1] button.
• Insert a memory stick and toggle the data from 0-1 using the [3] button.

USER MENU H/V ADJUSTMENT

To adjust the user Graphics position:

• Enter service mode.
• Press [Jump] button once to arrive DM service mode.
• Scroll to iten '8' GFXX  or item '9' GFXY with the '1' button 
• Adjust graphics position for each item by changing data with the [3] and [6] buttons.
• 8 GFXX [H position]
• 9 GFXY [P position]