Grundig 14" B/W Portable 1970s

[casanova]

I have this Grundig B/W 14" portable tv , it was working i cleaned it out inside a small component GL7 fell off its 2 pin glass since then the sound works but black screen, their is 80volts on one side, to make ir worse the back label is to worn to read so i don't know the model# it has i white cabinet with a black front

 

[73's de Edd]

. . . . .a small component GL7 fell off its 2 pin glass . . . .
photograph it . . . . .

 

[casanova]

the model~ i have found out is P1422, on the circuit board its GL7

 

[73's de Edd]

photograph it . . . . . that component

 

[Harald Kapp]

Grundig, a German company, GL is possibly a diode (GLeichrichter = rectifier).
The service manual is available online for a fee.