background image

PRI 출력신호를 조절하는 볼륨입니다.
시계방향으로 돌리면 음량이 증가합니다.

6. PRIORITY LEVEL

6. PRIORITY LEVEL

This is volume to control of Priority output signal.
A value is increased when turn to clockwise. 

포토 커플러 출력으로 이루어져 있으며, 
앰프가 정상 동작할 때 "ON" 됩니다.

7. AMP OK.

7. AMP OK.

This consist of  photocoupler and will be turn on when all function of 
amplifier are at normal status.Run LED will be turn on when all function 
of amplifier are normal.

9. PGM, PRI SIGNAL INPUT

 

입력 감도는 1V, 임피던스는 20K    전자 발란스 회로 입니다.

9. PGM, PRI 신호 입력단자

입력신호가 없을때, 소비전력을 저감시키는 슬립기능의 모드 선택 
스위치입니다.
PRE MODE
20Khz pilot tone에 상관없이 무신호시에 sleep 기능이 작동됩니다. 

20Khz pilot tone에 의해 입력이 무신호일지라도 sleep기능이 
작동하지 않습니다.

11. SLEEP MODE

400Hz 저역 차단 필터의 기능을 “ON/OFF”하는 스위치입니다.

10. 400Hz 저역 차단 필터

11. SLEEP MODE

PRE MODE

This is mode select swtich of sleep function lowering the power
consumption when there is no input signal. 

Regardless of 20Khz pilot tone, the sleep function is operated under 
no signal condition.

POST MODE

Even if the input is under no signal condition by 20Khz pilot tone, 
the sleep functino is not operated.  

10. 400Hz LOW-CUT FILTER

This is "On/Off" switch for cutting low frequency below 400Hz.

POST MODE

R

EAR PANEL CONTROLS 

(후면기능)

이 단자를 이용하여 비상방송 및 리모트 방송을 할 수 있습니다.
PGM 신호는 뮤트되며, PRI 입력 신호가 출력됩니다. 이 때
“6”번 스위치는 PRI 입력 볼륨으로 작동합니다.

8. PRI 콘트롤 단자

8. PRI CONTROL

This connector is for Emergency broadcasting or Remote 
broadcasting. When this connector is short by relay or switch, 
PGM signal is muted and PRI signal is activated. In this case, 
PRI level is adjusted by no.6 switch.

Summary of Contents for JDB-250

Page 1: ...WWW JEDIA COM...

Page 2: ...CONNECTIONS S PECIFICATIONS S LOCK DIAGRAM B STAND BY DC AC AMP 1 VOLUME FAULT CLIP PRIORITY SIGNAL POWER RUN STAND BY DC AC AMP 1 VOLUME FAULT CLIP PRIORITY SIGNAL POWER RUN STAND BY DC AC AMP 1 VOL...

Page 3: ...SAFETY INSTRUCTIONS FEATURES...

Page 4: ...lied to the amplifier AC LED 5 POWER LED 6 PRIORITY LED Priority indicator LED will be turn on when No 8 priority signal of rear panel is shorted out and PGM signal is muted and priority input signal...

Page 5: ...JDB 250 JDB 500 JDB 225 19 482mm 12 VOLUME This is volume to control of PGM output signal A value is increased when turn to clockwise This amplifier is natural air cooling type This amplifier is natu...

Page 6: ...DB 500 100V 20 4 AC OK AC ON 5 AC OK BATT OK PILOT TONE 4 OUTPUT Amplifier s Output signal is isolated from the Ground When connect with Speakers total impedance of Speakers should be higher than Ampl...

Page 7: ...ODE This is mode select swtich of sleep function lowering the power consumption when there is no input signal Regardless of 20Khz pilot tone the sleep function is operated under no signal condition PO...

Page 8: ...SYSTEM CONNECTIONS JDB 500 POWER REMOTE MODEL JDB 500...

Page 9: ...NERAL NOTE JDB 250 10 9Kg 24lbs JDB 225 13Kg 28 6lbs JDB 500 12Kg 26 4lbs 1V 30K Balanced JDB 250 250Watt RMS JDB 225 250Watt RMS x 2 JDB 500 500Watt RMS Power Consumption JDB 250 380W JDB 225 800W JD...

Page 10: ...LOCK DIAGRAM...

Page 11: ...M EMO...

Page 12: ...4M OP211080...

Reviews: