EMX512SC/EMX312SC
56
3-8
Stability
3-8-1
Preparation
• Disconnect the load resistance from the output terminal.
• Input the 1 kHz, –10 dBu square wave. (effective value)
• Adjust the MONITOR MASTER control so that the output terminal voltage of the SPEAKERS B2 terminal is within the range
specified in the table 3-8-1.
• Adjust the MAIN MASTER control so that the output terminal voltage of the SPEAKERS A2 terminal is within the range specified
in the table 3-8-1.
• Do not touch the MONITOR MASTER control and MAIN MASTER control until this inspection is finished.
3-8-2
Inspection
Connect only the polyester film capacitor with capacity of 0.01µF to the output terminal. Then check the overshoot and the ringing is
as follows:
• Overshoot: Vp/Vo < 2.5
• Ringing: within 7 waves and no oscillation
3-9
Maximum Output Power
3-9-1
Preparation
• Input the 1 kHz, –10 dBu signal.
• Adjust the MONITOR MASTER control so that the output terminal voltage of the SPEAKERS B2 terminal is +22±0.1 dBu.
• Adjust the MAIN MASTER control so that the output terminal voltage of the SPEAKERS A2 terminal is +22±0.1 dBu.
• Do not touch the MONITOR MASTER control and MAIN MASTER control until this inspection is finished.
3-9-2
Inspection
Input the 1 kHz signal and check the distortion is less than 0.5 % when the output power specified in the table 3-9-2 is obtained.
Notes:
• Distortion should be measured with a 22-kHz low pass filter.
• Finish this inspection within 30 seconds.
Table 3-8-1
SPEAKERS (A2, B2)
EMX512SC
+24±2 dBu (effective value)
EMX312SC
+22±2 dBu (effective value)
Table 3-9-2
SPEAKERS (A2, B2)
EMX512SC
500W+500W
EMX312SC
300W+300W
Vp
Vo
Fig. 3-8-2
Содержание EMX512SC
Страница 13: ...EMX512SC EMX312SC 13 DIMENSIONS 寸法図 71 66 1 54 108 284 2 286 264 71 66 1 298 307 8 440 2 5 442 5 Unit mm 単位 mm ...
Страница 29: ...EMX512SC EMX312SC 29 DSP Circuit Board 2NA WD80120 to MIX CN301 N C Component side 部品側 Pattern side パターン側 2 ...
Страница 33: ...EMX512SC EMX312SC 33 JACK Circuit Board 2NA WD94340 C C Pattern side パターン側 2 ...
Страница 34: ...EMX512SC EMX312SC 34 2NA WD94340 C C D D Pattern side パターン側 2 ...
Страница 35: ...EMX512SC EMX312SC 35 2NA WD94340 D D Pattern side パターン側 2 ...
Страница 43: ...EMX512SC EMX312SC 43 2NA WE83470 AC IN to PS CN402 to PS CN401 I I Component side 部品側 2 ...
Страница 46: ...EMX512SC EMX312SC 46 PA Circuit Board 2NA WE74050 K K Pattern side パターン側 1 ...
Страница 47: ...EMX512SC EMX312SC 47 2NA WE74050 K K Pattern side パターン側 1 ...
Страница 78: ...EMX512SC EMX312SC 78 3 2 修理フ ローチャー ト 1 次側回路を確認し ます 注意 感電するおそれがあ り ますので 注意し て作業し て く だ さい ...
Страница 80: ...EMX512SC EMX312SC 80 YES OPEN ...
Страница 82: ...EMX512SC EMX312SC 82 15Vp p 280Vp p ...
Страница 84: ...EMX512SC EMX312SC 84 ...