Assembly; Mechanical Construction - Sinclair Microvision MTV1 Service Manual

Assembly

To assemble the receiver the reverse actions to the Dismantling procedure is required. Care must
be taken in replacing the Audio and Video panels. The pins must locate exactly with the sockets or
a short will take place, open-circuiting the battery safety fuse line on the print side of the Tuner
board and possibly causing other damage.
It can be quite tricky to get all the pins 'just right' and visibility is extremely limited. The lower pins
(on the Power/Deflection board, with the tube) are usually the hardest to get right. Generally, if a
panel feels at all spongy or springy and/or doesn't sit flat against the two larger boards, then it
probably isn't correctly mated and should be removed for another go. It is worth checking continuity
between boards on a few pins and also checking that adjacent pins aren't shorted.
The two insulators must be replaced over the audio panel and under the power board in the
appropriate places.
When refitting the front panel assembly, care must be taken to locate the front of the tuner panel
into the two slots in the front panel.
When fitting the case assembly, the speaker grille is placed to cover the loudspeaker.

Mechanical Construction

The electronic circuits are built on four major glass fibre printed circuit boards. These are
interconnected by gold plated plug/socket units and form a modular chassis type construction. The
whole is incorporated in a tough steel case with plastic front and rear trim panels.
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Sinclair MTV1 service manual V2.1