Yamaha Loopfactory AN200, Service Manual

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29
AN200
●
The test program
Test No. Test Item Test Conditions, Judgment Criteria, etc
C-1 RAM OK/NG
C-2 RAM BATTERY OK/NG
C-3 SW & LED OK/NG LED visually check the lights
C-4 DATA ENTRY OK/NG (0-23-0)
C-5 KNOB OK/NG (255,254-127-1, 0)
C-6 MIDI OK/NG
C-7 WAVE ROM OK/NG
C-8 1kHz OUTPUT(L) +3.0 +/- 2dBm load 10k
Ω
OUTPUT(L) OUTPUT(R) less than –80dBm
SOUND
(SWX00B)
C-9 1kHz OUTPUT(R) +3.0 +/- 2dBm load 10k
Ω
OUTPUT(R) OUTPUT(L) less than –80dBm
SOUND
(SWX00B)
C-10 PB NAME OK/NG
C-11 PB RAM OK/NG
C-12 PB MIDI IN OK/NG
C-13 PB MEL OUTPUT(L) -2.0 +/- 2dBm load 10k
Ω
-5.0 +/- 2dBm load 10k
Ω
C-14 Factory set
C-15 EXIT Reverberated noise level
OUTPUT(L), OUTPUT(R) less than –88 dBm
C-16 OK/NG
C-1 CPU RAM
This is the read/ write/ verify check for the MAIN CPU RAM.
Display of Test Results
OK:
NG:
Test End
The test result is displayed and the test will be finished.
Refer to “The test procedure when an error is detected” when “NG”
(No Good) error is detected.
C-2 RAM BATTERY
This test checks that the voltage of the RAM backup battery is within
the range from 2.9 V up to 3.4 V.
Display of Test Results
OK:
NG:
Test End
The test result is displayed and the test will be finished.
Refer to “The test procedure when an error is detected” when “NG”
(No Good) error is detected.
●
The test program