FL1.6	

1.Sometimes no synchronization

-Check diode 6007 on LFR (digital scan) box (4822 130 80888; BA682).
REMARKS          :
Signal was 12MHz instead of 16MHz for 4:3 mode.

2.Sometimes picture scrolls vertically.

-Check added circuit modification near TS7027 (Zener diode 5V6,
diode 1N4148, resistor 1K).

3.Unstable picture, horizontal jitter.

-Check/replace R3405 on the LSP. (4822 051 10303 for 50 Hz sets;
                                 4822 051 10333 for 100 Hz sets). 

4.Wrong synchronization, unstable colors

-D6417 on the LSP dependent on temperature, check/replace 
(4822 130 81223) 

5.Total picture vibrates in vertical way, even on teletext.

-Check PLL signal on pin 26 of IC7219 on LFR box; if clock is 
32.825 MHz; replace IC7120 (IC7220 in stocklist of service manual) 
(4822 209 31061; S87C652-SN40).

6.Synchronization, picture disappears

-D6703 and T7704 defective on picture tube panel.