Technics SX-PR270 M User Manual

TEST MODE Procedure
Wave ROM (IC20, 21, 22) | 1. While pressing two E keys simultaneously, turn on the power
check switch.
2. Select the GRAND PIANO sound.
| When set to the self-diagnostic mode, the Wave eThe key number indicates the Wave ROM
ROM outputs a sine wave. The Wave ROMs number
correspond to the keyboard keys as shown in the (ROM 1: IC20, ROM 2: IC21, ROM 3: IC22).
diagram to the right. When a key is pressed, the
corresponding sine wave sound is produced. If no
sound is produced, or if the sound is distorted, the
Wave ROM corresponding to that key is defective.
CPL, CPR
CPSQ
LED & SW check 14. On the control panel, set ail the sliding BALANCE controls to OFF.
2. While pressing two F keys simultaneously, turn on the power
°°
ATTN
TTTT
F keys
All the LEDs turn off after lighting once. Confirm that ail the LEDs light.
LCD Display check While pressing two G keys simultaneously, turn on the power switch.
UR A AL
G keys
The test pattern for the LCD character display is shown. There are 4 different test patterns, which are
selected with the TRANSPOSE buttons. Only the first display of the test pattern display differs, as
shown at right. Confirm that the characters appear correctly.
Pattern 1 Pattern 3
eee s.r. eo | dJ><ii] — O@J><il] [
Pattern 2 Pattern 4
J DPRRs OP ABID DSR, > AE 1Ha. Jd Per JRBRB. I Pet
Keyboard ROM (IC2) check While pressing two B keys simultaneously, turn on the power switch.
If the keyboard ROM (IC2) is OK, one confirming beep will sound. If it is defective, several
consecutive error beeps will sound.
eH
Sh fan a
EE Fa
EES 2 a
za
oe : ; 1 co
Tis
afjala
3
a
&
st
Tiere
Be
ols]
Etre
sai
ats
ies
:
2]
8]
212
ec39 A
RT JR air 3 2 Z| Fs
Are. ro ' 9 o

Technics SX-PR270 M Specifications

General

Brand	Technics
Model	SX-PR270 M
Category	Musical Instrument
Language	English