Technics SX-KN930 Service Manual

(D
q)
()
()
WARNING
To prevent the risk of fire, smoke, or electrical shock and to ensure safe operation, please be sure to follow the safety guidelines
below.
. At places where special caution is required, the necessary safety precautions are clearly labeled or printed, for example,
on the cabinet, or on the part concerned. Please follow these safety precautions, and also those listed in the Owner's Manual.
NO
. Parts which have a A mark in the circuit diagram or in the parts list are essential for safety. When replacing these parts, be
sure to use only the specified parts.
@
. Use the specified types for internal wiring(double-insulated wiring, etc.).
ib
. When replacing parts on the AC primary side(power transformer, electric switch, electrical cord, noise-prevention condenser,
etc.), wind the lead wire and secure it by soldering.
a
. Do not let the wiring come into contact with heat-emitting devices(fuse resistor, radiator plate, etc.).
[e))
. When replacing the wiring, make sure that it is not in contact with the unfinished or rough edge of a part.
N“N
. When replacing the power cord(except for the plug-in type), tug it from various directions to confirm that it does not slip out of
place.
. Spacing
if soldering was done on the AC primary circuit, confirm that the interval between the soldered terminals or between the term-
inal and surrounding metallic parts is at least the minimum required (Between the primary circuit and the chassis: at least
6.5mm; between primary circuit terminals: at least 4.0mm; between primary circuit terminals and secondary circuit terminals:at
least 6.5mm.).
MODIFICATIONS
1.PRINTED CIRCUIT BOARD
PRINTED CIRCUIT BOARD(Refer to Pagelll-1)
Paris No.
SX-KN920 SX-KN930
RTL Ed | sxpaez2e7s1 SXPG2267101 MAIN | Changed
Description Remark
Mi |
SXPG226741 | SXPG226791 Changed
| SxPG226921 SXPG226941 Changed
2.MAIN CIRCUIT
The programmed ROMs have been modified. The part number of the [WZAINIP.C.B. has been changed also.
SQA] MAIN CIRCUIT (Refer to Pagelll-1)
Parts No.
Ref.No. Description
| SX-KN920 | SX-KN930 |
Ic
QSIGX3C32010 | QSIGX3C32014 32M BIT MASK ROM
| QSIGU3C32397 QSIGX3C32012 32M BIT MASK ROM
Changed
| Changed

Technics SX-KN930 Specifications

General

Brand	Technics
Model	SX-KN930
Category	Electronic Keyboard
Language	English