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A |
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C |
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D |
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E |
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F |
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G |
H |
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CHANNEL 2 |
CHANNEL 1 |
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MASTER |
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MASTER |
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LEVEL |
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LEVEL |
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RT720 |
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RT710 |
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+15V |
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1 |
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5K |
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5K |
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D700 |
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COM/ALERT |
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Communications / Alert |
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R720 |
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3 |
1 |
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3 |
1 |
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CW 2 |
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CW 2 |
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YELLOW |
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Open |
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4 |
5 |
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4 |
5 |
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+15V |
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U700:A |
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+15V |
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BA4560 |
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P700 |
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CHANNEL 2 |
CHANNEL 1 |
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R701 |
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-15V |
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R710 |
U700:B |
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1 |
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12.1K |
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BA4560 |
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-15V |
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D709 |
Signal |
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12.1K |
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-15V |
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YELLOW |
Presence |
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+15V |
2 |
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3 + |
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5 |
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+15V |
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4 |
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+ |
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Sig Com |
3 |
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7 |
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4 |
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1 |
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6 |
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Ch2 Master |
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R702 |
2 - |
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5 |
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R711 |
- |
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D701 |
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Signal |
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8 |
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VCA 5V |
6 |
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1.50K |
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R707 |
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1.50K |
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R716 |
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Sig Com |
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YELLOW |
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Presence |
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2 |
7 |
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7.5K |
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7.5K |
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Ch1 Master |
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1/4W 5% CF |
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1/4W 5% CF |
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8 |
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+15V |
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VCA 5V |
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R718 |
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9 |
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U701:B |
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POWERGND |
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R705 |
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R713 |
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10 |
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D710 |
Amplifier |
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POWERGND |
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D702 |
Open |
Amplifier |
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12.1K |
BA4560 |
D718 |
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12.1K |
U702:B |
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11 |
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YELLOW |
On |
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D720 |
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Comunication Alert |
COM/ALERT |
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YELLOW |
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On |
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12 |
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BA4560 |
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Clipping Ch#2 |
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5 |
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5 |
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13 |
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+ |
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+ |
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Display Ch#2 |
14 |
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R719 |
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7 |
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7 |
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Clipping Ch#1 |
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6 |
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C701 |
R709 |
6 |
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15 |
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D703 |
Open |
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D713 |
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C700 |
R700 |
- |
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- |
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Display Ch#1 |
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1/50V |
150K |
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R708 |
1/50V |
150K |
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Signal Presence 1 |
16 |
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YELLOW |
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Protect |
YELLOW |
Protect |
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1/4W |
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1/4W |
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7.5K |
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U702:A |
R717 |
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Amplifier on |
17 |
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5% CF |
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U701:A |
1/4W |
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5% CF |
7.5K |
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Signal Presence 2 |
18 |
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R721 |
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5% CF |
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BA4560 |
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1/4W |
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19 |
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BA4560 |
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5% CF |
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Protect |
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R706 |
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R714 |
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20 |
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D704 |
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D714 |
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Thermal |
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Open |
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Thermal |
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100K |
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-15V |
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100K |
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-15V |
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Thermal |
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GREEN |
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GREEN |
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3 |
4 |
3 |
4 |
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+ |
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+ |
3 |
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1 |
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D705 |
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2 |
- |
2 |
1 |
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- |
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GREEN |
Clipping |
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8 |
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8 |
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+15V |
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+15V |
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D715 |
Clipping |
R704 |
D717 |
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D719 |
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GREEN |
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R715 |
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22.6K |
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22.6K |
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R703 |
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R712 |
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12.1K |
CHANNEL 2 |
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D706 |
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12.1K |
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YELLOW |
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CHANNEL 1 |
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-6dB |
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+15V |
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D707 |
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YELLOW |
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C703 |
C705 |
C707 |
-12dB |
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10/35V |
10/35V |
10/35V |
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4 |
C704 |
C706 |
C708 |
D708 |
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YELLOW |
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10/35V |
10/35V |
10/35V |
-20dB |
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-15V |
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CHANNEL 2 |
CHANNEL 1 |
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D711 |
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YELLOW |
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-6dB |
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D712 |
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E607 |
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YELLOW |
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-12dB |
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1 |
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E606 |
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D716 |
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1 |
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YELLOW |
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-20dB |
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5
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Notes; Unless otherwise noted |
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1. Resistors are in 1/8W 1% metal film, in Ohms. |
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Capacitance in uF. |
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G r o u n d i n g S y m b o l K e y |
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Diodes are 1N4148. |
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6 |
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C h a s s i s G n d |
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Model 2150 Amplifier |
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I n p u t |
G n d |
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Display PCB |
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P o w e r |
G n d |
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Part Number 262088 |
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Service Manual Part Number 216306 Rev. 00 |
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Sheet 1 of 1 |
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A |
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B |
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C |
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D |
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E |
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F |
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G |
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H |
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4
5
6
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