id Original settings in service menu - > option alignment for Set fitted with NICAM module:
Option 1: 122 - Option 2: 101 or 103* - Option 3: 0 - Option 4: 0 16516b11q (* 1 or 2-digit mode in channel selection)
(Jeroni paul)

id Original settings in service menu - > option alignment for Set without NICAM module:
Option 1: 58 - Option 2: 69 or 71* - Option 3: 0 - Option 4: 0 16516b11q (* 1 or 2-digit mode in channel selection)
(Jeroni paul)

id:= 017682 Procedure to enter service menu
Remove the back cover, you'll see two horizontal boards, on the left one and rather to the right of it, there is a 3 pin male connector (triangle shape), going inside of the set under the tube. The middle pin has to be shorted to one of the other two; on the board is labeled what they do. Careful! 'SERVICE DEFAULTS' resets the settings to their defaults. DO NOT short to this pin or you'll lose current settings. To enter menu short with pin 'SERVICE'. Keep an eye at the arrows drawn on the board, they point to the corresponding pin (do not rely on the position of the texts around the connector).
(Jeroni Paul)

id:= 017851 Service menu was reset (procedure to correct)
In the 'Option alignment' menu, these values were found experimentally and seem to work properly: Option 1: 74 - Option 2: 101 - Option 3: 0 - Option 4: 0 16516b11q
(Jeroni Paul)

id Unstable phase shift in horizontal deflection. Pic looks like scrambled. Sound muted and sometimes pic rolls vertically
Replace IC TDA2579B in the AD/DA board (located inside a metal case in vertical position)
(Jeroni Paul)