JVC AV28CH1EUB
Manual de Servicio

AV28CH1EUS AV28CH1EUB

REMOVING THE CRT
� Replacement of the CRT should be performed by 2 or more pers ons. � After removing the c over, chassis etc., 1. Putting the CRT c hange table on soft cloth, the CRT change table should also be c overed with s uch soft cloth (shown in Fig.3). 2. While keeping the s urfac e of CRT down, mount the TV s et on the CRT change table balanced will as shown in Fig.4. 3. Remove 4 sc rews marked by arrows with a box type screw driver as s hown in Fig.4. � Sinc e the cabinet will drop when screws have been removed, be sure to support the cabinet with hands. 4. After 4 screws have been removed, put the cabinet slowly on cloth (At this time, be carefully so as not to damage the front surfac e of the c abinet) shown in Fig.5. � The CRT should be ass embled according to the opposite sequence of its dismounting steps. � The CRT change table should preferably be smaller that the CRT surfac e, and its height be about 35c m. CRT CHANGE TABLE BOX TYPE SCREW DRIVER CRT CHANGE TABLE

APPROX. 35cm

CLOTH

Fig. 3

CRT

COATING OF SILICON GREASE FOR ELECTRICAL INSULATION ON THE CRT ANODE CAP SECTION.
� Subsequent to replac ement of the CRT and HV transformer or repair of the anode cap, etc. by dis mounting them, be sure to coat silicon grease for electrical insulation as shown in Fig.6. Wipe around the anode button with clean and dry cloth. (Fig.6) Coat silic on greas e on the section around the anode button. At this time, take c are so that any silicon greas es dose not stic k to the anode button. (Fig.7) � Silicon grease product No. KS - 650N

Fig. 4

CRT

CABINET

CRT CHANGE TABLE

Fig. 5

CRT

Anode button

Approx. 20mm (Do not coat grease on this s ection

Silic on greas e should be coated by 5mm or more from the outs ide diameter of anode c ap.

Silic on greas e coating

Anode button (No sticking of silicon grease)

Coating position of silicon grease

Anode cap

Fig. 6

Fig. 7

8

No. 51944