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5
4
3
2
1
AN6884
D207 1N4148
D
12V GND
D
R265 2k T219 2SA1695 390 R249 0.68 C221 D208 1N4148 12k T221 2SB647C 390 R247 C21? 100p 10pF R251 100uF 25V C??? C217 D204 2SA1837 T209 3 10k R233 2SA1837 T205 R268 15k +86V T222 GND 47k R230 15V D203 100 R228 R269 56k -86V GND 10uF 25V C208 R signal in 1k R216 C211 220p 24k R225 10uF 25V C210 Limiter switch (ON) On rear panel R1 10k
B
GND 1k
R264
2.2k
2.2k LED 2 -15dB LED 3 -10dB
2.2k 10k
+ 1uF
-25dB
LED 1
+24V GND
-86V T217 2SA1695 -86V +86V R234 100 R262
100n
56 To front panel PCB AN6884 GND
0.68 T215 2SA1695 390 R245 0.68 D210 R252 10 5W 220k GND R260
24k R250
R227 3.3k 22p C212
1N4148
GND
1.2k
T206 2SC4793 2 VR203 330 1 -86V T207 H669A C216 47uF +
12V GND GND
-86V
1N4004
C
C
R231 15k -86V
100 R229 T203 KSP42
T202 KSP42
R235 100 220
100n 7.5k 680 2.2k 2.2k 2.2k 2.2k 10k 1k
R232 100/1W -86V
R237
+ 1uF
R253 K1 R236 R??? 103 R221 15k R258 GND T214 2SC4468 390 R244 C220 0.68 2.2uF 50V 2SC4468 T212 R310 -15V 10k 240k 0.68 GND +24V 2SC4468 T210 11 R254 47k R240 390 D205 1N4148 R275 10k GND T226 2SC1815 R259 2k 1N4004 R273 +24V 470k GND 5.7k -15V R274 + C224 100uF 25V R279 4.7k + 5 6 U202A 1/2 RC4558 R303 10k + R256 T220 2SD667 GND 100n 1N4148 D206 R272 2SC1815 47k T224 10k R282 10k D218 1N4148 100uF 25V T228 2SC1815 R281 C223 +24V D216 +86V 4.7 / 1W Relay
GND +24V LED 4 -5dB LED 5 0dB LED 6 +3dB LED 7 GND +6dB CLIP 10 100 1W +24V
T201 KSP42
2N5401 2SA1837 T204 C213 T208 2SC4793 22p
1k
1N4148 2.2k C133 100n GND +24V R288 47k 3 T231 2SA940 2.2k 1N4148 10k 10k R286 U202A 1/2 RC4558 4 GND T230 2SC1815 C225 10n GND 2 VR 50k B On rear panel 1
R270 2.2k
R Output
+24V
10k
C214 100p
+86V T223 2SC1815 1 2 3 4 5 6 -15V R308
R287 D219 R285
390 R242
T225 2SC1815
-15V 7
R224 10k
B
VR202 -15V 1
-15V 3
GND +15V
1k R311 33k R313
1
4 2 3 6 9 8 +15V +
LM13600D (1/2) 5
2
1
10k GND GND
0.68 D209
8
GND -15V GND
Cadd +
2
3
-
+
100uF 25V
R312 1k R314 10k To input (it's simplyfied) 7 U201A NE5532 + -
+86V
R283 22k To ventilator (+ pole) CN 105 - Fan 24V DC, 200mA
2SC1815 T227 +24V
R276 10k
NTC202 ??? ??? NTC203 1 2 VR205 5k R284 10k
GND T229 2SC1815 -15V +15V CN107 Pin5 'Protection' To front panel PCB R278 22k GND
5
6
3k R277
A
3
A
LED 18 'Protect'
GND
5
4
3
2
1