General information

 

Job Number

 

0303-73

 

 

 

 

Equipment type

 

 TV (24 inch)

Made in:

Italy

 

 

 

Maker/Model/Chassis

 

Seleco

24SM822

?

 

 

 

 

 

 

 

 

 

Dates

 2003

 

In

Repaired

Out

 

Thu.20.Mar

Sat.22.Mar

Sun.23.Mar

 

 

 

Comments

 

 

 

 

Symptoms observed

 

 

1

No picture, No Raster, no sound from aerial

 

 

2

Sound is formed on video, but picture still absent

 

 

Repair notes

 

Full repair description and observations

 

1

 I had a similar fault some time ago on a Seleco model and this was due a dedicated IC. IT was the TDA 4502 (28pin) but by mistake I bought the TDA3301b. Fortunately the shop owner took it back and gave me the money. He did not had a new TDA4502 because they are absolete, but I obtained one from a scrapped Seleco chassis I had in garage.

 

 

2

 I changed the TDA4502 and the TV came working well.

 

 

Repair summary

TDA4502 BROKEN DOWN

 

 

 

Precautions, fouls and advises

 

1

It is a brilliant idea to make a new base when changing large Ics.

 

 

 

Other measurements and technical comments

 

1

N/a