Text preview for : Guiarda PMX-600 power mixer.pdf part of Guarda PowerMate 600 power amp schematic



Back to : Guiarda PMX-600 power mix | Home

GUARDA POWER MATE 600
( power amp circuit - one channel )

+71V
+71V
R3 R8
4,7k 4,7k
0,25W 0,25W
R16 (to speaker protection circuit)
2n5551 2n5551 200R




C




C
0,5W
B Q1 Q5 B A C




E
NPN
Q7




C
NPN B Q10
E




E
2sB649
B 2sC2073
- 69,6V C8 PNP




C
NPN
2n5551
C
R29




E
+69,4V R30
B 22pF 27k 100k
Q3 R19 R23 0,25W




C




C
NPN 1kV 0,25W
C3 D1 R9 4,7R Q12 4,7R Q14
E


- 590mV 4148 33k 0,5W B 2sC5200 0,5W B 2sC5200




C
0,5W 0V +1V NPN NPN
1K R6 100uF D2 R27 Q16




E




E
B
0,25W 25V 4148 + 420mV + 420mV 2n5551
IN 4,7k NPN
CYF2-2C-12VDC
GND R21 R25




E
R18 0,25W R28 C10
1
2




C1 2,2K R13 100R 0.22R 0.22R 2,7k K1
R1 -71V




C
C5 C7 0,25W 0,5W 5W 5W 0,25W 10n
R11 R12 Q8 100V L1
1k 22uF B
GND 25V 2sD669
GND 0,25W 22uF C2 680R 1uH
R2 33k N.P. NPN
GND
100uF




E
25V 1K R14
33k +71V 25V
0,25W 0,25W (on heatsink) R17 R22 R26 R31
0,25W




2
1
220p N.P. C6 0.22R 0.22R OUT
0,25W 100R
0,5W - 420mV 5W - 420mV 5W R32
10R




E




E
R5 C4 22pF
D3 R10 Q13 Q15 2W
GND 1K 4148 33k 1kV - 390mV -1V B B
0,25W R20 2sA1943 R24 2sA1943
0,5W C11
+ 590mV 100uF 4,7R PNP PNP
D4 22pF 4,7R




C




C
100n J1
E




PNP 0,5W
25V 4148 1kV 0,5W
B 100V
Q4 GND GND speaker




E
- 69,4V Q11
2n5401
C




C9 B
2sA940




C
+69,6V Q9 PNP
B




C
2sD669
2n5401 2n5401
E




E




NPN




E
B Q2 Q6 B
R15
PNP PNP
200R
C




C




0,5W

R4 R7
4,7k 4,7k
0,25W 0,25W -71V
power supply
+71V
F1
-71V
12A
2SC5200 (NPN) C12
2SA1943 (PNP) 2SC2073 (NPN) 10 000uF
80V
2SA940 (PNP) 2SD669 (NPN) GR1
+
2SB649 (PNP) GND ~1 2~ AC
- 3 ~50V
2N5551 (NPN) C13 GND 2
2N5401 (PNP) 10 000uF 1 ~50V
80V
top view
F2

E B C B C E ECB 12A
B C E
-71V