Yamaha DTXPRESS, Service Manual

Page: 19 / 47

DTXPRESS
19
Test End
OK: It proceeds to the next test automatically.
If an error is detected during the test, refer to section B,
[PROCEEDING THROUGH THE TEST].
T–28. RIM SW IN 1: 1 KICK
T–29. RIM SW IN 2: 2 SNARE
T–30. RIM SW IN 3: 3 TOM1
T–31. RIM SW IN 4: 4 TOM2
T–32. RIM SW IN 5: 5 TOM3
T–33. RIM SW IN 6: 6 RIDE
T–34. RIM SW IN 7: 7 CRASH
T–35. RIM SW IN 8: 8 HIHAT
Initial Display
28 RIM SW IN01
waiting
The pad with the RIM switch must be connected to one of
(1.KICK to 8.HI.HAT). Check for signal leakage.
28 RIM SW IN01
waiting
OK
29 RIM SW IN02
waiting
When the next attenuator switch number appears in the
display (e.g. IN02), insert the appropriate end of the stereo
cable into the relevant jack (e.g. 8.HI.HAT). Repeat this
process for all remaining switches.
Result Screens
OK: It proceeds to the next test automatically.
NG
28 RIM SW IN01
FAIL
Test End
OK: It proceeds to the next test automatically.
If an error is detected during the test, refer to section B,
[PROCEEDING THROUGH THE TEST].
T–36. HOST SELECT SW
Initial Display
36 HOST SELECT
[XXXXX]
(XXXXXX= MAC; PC-1; PC-2; MIDI)
This test checks the HOST SELECT switch.
Set the HOST SELECT switch to match the display.
Result Screens
OK: It proceeds to the next test automatically.
NG
36 HOST SELECT
FAIL
Test End
OK: It proceeds to the next test automatically.
If an error is detected during the test, refer to section B,
[PROCEEDING THROUGH THE TEST].
T–37. H.H. CONT
Initial Display
37 H.H. CONT
Insert the H. H. CONTROL plug and turn the
potentiometer from maximum to minimum position.
Result Screens
OK: It proceeds to the next test automatically.
NG: Blank
Test End
OK: It proceeds to the next test automatically.
T–38. OUTPUT L 1kHz
Initial Display
38 OUTPUT L 1kHz
This test checks the OUTPUT (L/MONO) for the specified
signal output level.
Insert the plugs into the OUTPUT (L/MONO and R) jacks.
Set the MASTER volume to maximum and AUX IN
volume to minimum. Use the frequency counter,
oscilloscope, distortion meter and level meter (with flat
filter) to measure frequency, waveform, distortion and
output level.
Check that the AUX IN jack is unplugged and that the
input voltage is less than -90 dBm.
Check points
Check that the output meets the following specifications:
OUTPUT (L/MONO):
1 kHz +/-3 Hz, sine wave, +0.6 +/-2 dBm (10 kohm
lord and distortion is less than 0.3 %)
OUTPUT (R):
Less than -65 dBm (w/ flat filter)
When the OUTPUT (R) is disconnected:
OUTPUT (L/MONO):
1 kHz +/-3 Hz, sine wave, -5.1 +/-2 dBm (10 kohm
lord and distortion is less than 0.3 %)