Sony HP-210 - Page 3

SERVICING NOTES
__.1,_Be_certain that the lead wires (blue) for the dial lamp are affixed to the front subchassis with electrical tape, _
otherwise hum will be picked up at the preamplifier stage. See Fig. A.
Be certain that the discriminator transformer shield is reinstalled, otherwise hum will be picked up from the
record changer motor. See Fig. B.
In this set, “‘wire-wrap” connections are employed as shown in Fig. C. In case a-wire breaks, simply solder
the lead wire directly to the terminal post.
Wire-wrap connection cannot be properly made by hand.
Care should be taken not to cut too deep when removing the insulation from wire.
Even the slightest nick in the copper wire will weaken the wire enough to eventually cause a break at that
point. Use a soldering iron to remove the insulation.
electrical tape
Fig. A Affixing lead wire
shield
cover
terminal
post
Discriminator
--— transformer
IFT201
Fig. B {FT201 and shield cover . Fig. C “Wire-wrap” connection