Description Des Circuit - Sharp Rp-103H Serviceanleitung

RP-103H
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OUTLINE OF PLAYER CONTROL SECTION
@ Key control section
Play/cut, cue, cartridge forward
(APSS), cartridge reverse (APSS),
repeat play, both sides play, side
A/B. Selector, speed _ selector,
open/close (loading)
CIRCUIT DESCRIPTION
® Indicator section
Side A play, side B play, both sides
play, repeat play.
@ Phono motor contro! section
Forward rotation:
High level signal at pin Q2) of mi-
crocomputer
Reverse rotation:
High level at pin QD: of microcom-_
puter
@ Sensor section |
Turntable chassis open/close, tonearm
rest position, tracking, APSS/record
size, tonearm position. |
@ Microcomputer
Low speed:
High level signal at pin QQ) of mi-
crocomputer
@ Tonearm control section
KEY CONTROL SECTION
1. Play/cut key
. Side A/B selector key
Changes side A play and side B play. With this change, the
tonearm moves to a lead-in position, which results in play-
. Speed selector key
_ Enables to manually change the speed for a record:
. Open/close (Loading) Key |
SENSOR SECTION
1.
the switch SW204 turns on.
. Tonearm rest position sensor
is cancelled by pushing the key again.
. Bothsides play key —
per.