Yamaha CS2x Service Manual

CS2X
20
NUMBER TEST TEST RESULTS
T1 RAM READ/WRITE OK / NG
T2 BATTERY OK / NG
T3 LCD ALL DOTS ON / OFF
T4 PANEL SWITCH / LED OK, ON / OFF
T5 MIDI IN / OUT / THRU OK / NG THRU (Confirmation)
T6 HOST SELECT OK / NG
T7 TO HOST OK / NG
T8 WAVE ROM OK / NG
T9 1k Hz OUTPUT L (OUTPUT) OUTPUT L: +1.2 +/- 2 dBm (10k ohm load)
OUTPUT R: less than -70.0 dBm (10k ohm load)
PHONES (L): -5.7 +/- 2 dBm (33 ohm load)
PHONES (R): less than -60.0 dBm (33 ohm load)
T10 1k Hz OUTPUT R (OUTPUT) OUTPUT R: +1.2 +/- 2 dBm (10k ohm load)
OUTPUT L: less than -70.0 dBm (10k ohm load)
PHONES (R): -5.7 +/- 2 dBm (33 ohm load)
PHONES (L): less than -60.0 dBm (33 ohm load)
T11 KEYBOARD OK, KEY CORD / KEY TOUCH
T12 FX DRAM
T13 64CH OUT Listening
T14 KNOB 1 OK /NG, 64-127-00-64
T15 KNOB 2 OK /NG, 64-127-00-64
T16 KNOB 3 OK /NG, 64-127-00-64
T17 KNOB 4 OK /NG, 64-127-00-64
T18 KNOB 5 OK /NG, 64-127-00-64
T19 KNOB 6 OK /NG, 64-127-00-64
T20 KNOB 7 OK /NG, 64-127-00-64
T21 KNOB 8 OK /NG, 64-127-00-64
T22 PITCH BEND OK /NG, 64-127-00-64
T23 MODULATION WHEEL OK, 0-10-120-127-120-10-0
T24 FOOT VOLUME OK, 0-10-120-127-120-10-0
T25 FOOT CONTROLLER (QS) OK, 0-10-120-127-120-10-0
T26 SUSTAIN SWITCH OK, 0-1
T27 FACTORY SET OK / NG
T28 EXIT (NOISE LEVEL) OUTPUT(L, R): less than -80.0 dBm (10k ohm load)
PHONES(L, R): less than -90.0 dBm (33 ohm load)
T29 INPUT
T30 BATTERY
TEST PROGRAM
Measuring instruments: frequency counter, oscilloscope, AC voltmeter (with a JIS-C filter ), distortion
meter (with flat filter), keyboard amplifier etc.
Jigs: MIDI cable, expansion board etc.

Yamaha CS2x Specifications

General

Brand	Yamaha
Model	CS2x
Category	Synthesizer
Language	English