Yamaha CLP-340 Service Manual page 54

CLP-340/CLP-340M/CLP-340C
3 Test program list
Test No. LED display
1 (01
* *
A
OK: . NG:
* *
C
.
*
r-
.
2 (02
PAS
OK:
nG
NG:
(03
3
PAS
OK:
nG
NG:
(04
4
Test in progress:
PAS
OK:
nG
NG:
5 (05
PAS
OK:
nG
NG:
(Wave Rom SUM error)
nG2
(TG IRQ connection error)
(06
6
PAS
OK:
nG
NG:
(07
7
Test in progress:
8 (08
Test in progress:
(09
9
Test in progress:
54
Versions of the each ROM (Main Program, Wave) and information of destination
are displayed on the 7-segment LED.
AnG
* *
CnG A
.
* *
rnG C
.
*
r-
.
Checks ROM (simplifi ed check).
Check ROM (DM: IC20 (Main Program)) connected to the CPU bus.
Confi rm that "
Checks RAM (simplifi ed check).
Check RAM (DM: IC8 (Main Program)) connected to the CPU bus.
Confi rm that "
Checks Flash ROM (simplifi ed check).
Fr1
Check Flash ROM (DM: IC19) connected to CPU the bus.
Confi rm that "
※ MAC Address under the control of the factory is written to the IC19. Replace
the DM circuit board in case of NG.
Checks Wave ROM (simplifi ed check).
Check Wave ROMs (DM: IC 303, 304) connected to the bus of tone genrerator
LSI.
Confi rm that "
Checks Effect RAM (simplifi ed check).
Check Effect RAM (DM: IC 301) connected to the bus of tone genrerator LSI.
Confi rm that "
Checks sound source 1. (Auto Scale)
tG1 DM circuit board and SWP51L (IC300) are checked while sound is produced.
Check sound source and sound production by producing sound from the low
range of keyboard that can produce sound while switching sequentially the sound
producing channels of the sound source with the default tone as a sine wave.
Check the voice sound by hearing that there is not unusual noise or abnormal
sound.
Sound production stops as the check for the number of sound producing channels
is over.
Sound producing keyboard range includes 32 sounds from C2 to G4. The number
of sounds produced is 64.
After auto scaling has finished, individual keys can be played. (When two or
more keys are played simultaneously, the fi rst pressed key has priority to make a
sound.)
Checks Pitch.
Plt Pitch Accuracy Check: Connect the frequency counter to L or R of [PHONE] jack.
Sound is produced with 441.43±0.2Hz (A3) sine wave at PAN=center.
Sound production stops when returning to selection screen with the [DEMO]
button.
Checks Output Level R.
oPr
Sound is produced with the sine wave of 1kHz (C5) at PAN=R. Check if sound is
produced at the specifi ed level.
Connect the level meter (with a JIS-C fi lter) to each jack (PHONES L, R, AUX
OUT L, R).
With [MASTER VOLUME] slider at the maximum, check the R channel output
level. (PHONES L, R: 33 ohms load AUX OUT L, R: 10k ohms load)
· PHONES L: -31.5dBu or less
· AUX OUT L: -58.0dBu or less
Sound production stops when returning to selection screen with the [DEMO]
button.
Test descriptions, judging conditions, etc.
* *
A
( : Main Program, . : Version of ROM)
* *
C
( : Wave, . : Version of ROM)
(Information of destination,
PAS
" is displayed on the 7-segment LED.
PAS
" is displayed on the 7-segment LED.
PAS
" is displayed on the 7-segment LED.
PAS
" is displayed on the 7-segment LED.
PAS
" is displayed on the 7-segment LED.
PHONES R: +8.5dBu±2dB
AUX OUT R: +2.0dBu±2dB
r-. E r-. J
: English, : Japanese)