Effect Ram R Test; Foot Sw Test; Factory Setting - Yamaha QY100 Service Manual

QY100
Input sine signal:
-35dBm±0.5dBm, 100Hz±0.5Hz, distortion 0.005% or less,
signal source impedance 600ohm
Check Item
OUTPUT L: 100Hz±2.0Hz, 0dBm ± 3dBm (Load
33ohm),distortion 1.0% or less (Load 33ohm JIS C filter)
OUTPUT R: -50dBm or less (Load 33ohm JIS C filter)
Test End
AUTO mode: Pressing the [+1] key will end testing and "16.
EFFECT RAM R" test will be executed.
MANUAL mode: Pressing the [F4] key will end testing and
set to the test number waite state.

16. EFFECT RAM R TEST

Initial Display
QY100 TEST MANUAL
MAIN ROM Ver=#.##
SUB CPU Ver=#.##
16:Effect RAM R
[ENTER]:Test Start
[-1,+1]:INC,DEC
[F4]:Exit
Test Procedure
Insert the input jack and check that its insertion is detected.
Insert the jack into the output terminal (L, R) and measure
the frequency, output waveform, output level, distortion rate
of each output, using the frequency counter, oscilloscope,
level gauge (with JIS C filter) and distortion gauge
respectively. Set the master volume and gain volume to the
maximum level.
Input sine signal:
-35dBm±0.5dBm, 100Hz±0.5Hz, distortion 0.005% or less,
signal source impedance 600ohm
Check Item
OUTPUT R: 100Hz±2.0Hz, 0dBm±3dBm (Load 33 ohm),
distortion 1.0% or less (Load 33 ohm JIS C filter)
OUTPUT L: -50dBm or less (Load 33 ohm JIS C filter)
INPUT Peak LED check
INPUT: -25dBm±0.5dBm, 100Hz±0.5Hz
Signal source Z =600 ohm
Vary the volume from max. to min. and check that the peak
LED which is ON will turn OFF.
28
Test End
AUTO mode: Pressing the [+1] key will end testing and "17.
FOOT SW" test will be executed.
MANUAL mode: Pressing the [F4] key will end testing and
set to the test number waite state.

17. FOOT SW TEST

Initial Display
QY100 TEST MANUAL
MAIN ROM Ver=#.##
SUB CPU Ver=#.##
17:Foot Sw
[ENTER]:Test Start
[-1,+1]:INC,DEC
[F4]:Exit
Test Procedure
Connect the foot switch, execute testing and turn on and
off the foot switch.
Display of Result
OK
17:Foot Sw
NG None
Test End
Testing ends after the test result is displayed.

18. FACTORY SETTING

Initial Display
QY100 TEST MANUAL
MAIN ROM Ver=#.##
SUB CPU Ver=#.##
18:Factory Set
[ENTER]:Test Start
[-1,+1]:INC,DEC
[F4]:Exit
When the test is executed, the following emssage will
appear.
18:Factory Set
[NO] or [YES] ?
OK