Service Manuals, User Guides, Schematic Diagrams or docs for : . Various SM scena Studio 1176 1176REVA_125_DOCUMENTATION
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BILL OF MATERIALS FOR MNATS 1176 REV A VERSION 1.2.5 BOARD
MAIN BOARD
Quantity Value Description Designation Notes
1 10pF CAPACITOR, CERAMIC C11
1 33pF CAPACITOR, CERAMIC C16
1 6.8pF CAPACITOR, CERAMIC C6
1 1uF CAPACITOR, ELECTROLYTIC C17
1 47uF CAPACITOR, ELECTROLYTIC C18
1 2200uF/35V CAPACITOR, ELECTROLYTIC C24
2 2200uF/50V CAPACITOR, ELECTROLYTIC C25,C26
3 6.8uF CAPACITOR, ELECTROLYTIC C3, C23, C9
4 100uF CAPACITOR, ELECTROLYTIC C4,C5,C12,C21
2 1uF CAPACITOR, ELECTROLYTIC C7,C10
2 0.15uF CAPACITOR, FILM C1,C2
1 .001uF CAPACITOR, FILM C13
1 .033uF CAPACITOR, FILM C14
1 .0047uF CAPACITOR, FILM C15
1 .22uF CAPACITOR, FILM C22
1 .15uF CAPACITOR, FILM C8
2 6.8uF CAPACITOR, TANTALUM C19,C20,
1 1N914 DIODE CR1
2 FDH333 DIODE, LOW LEAKAGE CR2,CR3
1 1N4740A DIODE, ZENER CR6
1 1k var POTENTIOMETER, TRIMMER R44 TRACKING ADJ
2 2k POTENTIOMETER, TRIMMER R71,R75,R59 "0" SET, NULL ADJ, "Q" BIAS
FULL SIZED PANEL MOUNTED SCREWDRIVER
SET POT MAY BE USED FOR "0" SET
4 1N4003 RECTIFIER CR7,CR8,CR9,CR10
1 9.1k RESISTOR R11
2 2.2k RESISTOR R12,R64
4 47k RESISTOR R13,R38,R52,R53
2 22k RESISTOR R14,R46
1 20k RESISTOR R15
1 100k RESISTOR R16
4 8.2k RESISTOR R17,R34,R35,R77
1 15M RESISTOR R24
1 3.3M RESISTOR R25
1 33k RESISTOR R26
1 12k RESISTOR R27
1 560 RESISTOR R28
1 1.2M RESISTOR R29
1 150k RESISTOR R30
1 3.3k RESISTOR R31
1 39R RESISTOR R32
1 560R RESISTOR R33
1 1M RESISTOR R36
1 470k RESISTOR R37
3 4.7k RESISTOR R39,R51,R70
1 270R RESISTOR R4
2 2.4k RESISTOR R40,R49
1 270 RESISTOR R41
1 182k RESISTOR R42
1 38.3k RESISTOR R43
1 44.2k RESISTOR R47
1 7.68k RESISTOR R48
1 27k RESISTOR R5
1 180 RESISTOR R50
3 2.2M RESISTOR R6,R7,R10
2 3.9k RESISTOR R60,R67
1 1.5k RESISTOR R72
2 820 RESISTOR R68,R69
1 680 RESISTOR R73
3 1k RESISTOR R74,R81,R82
1 18k RESISTOR R76
1 15k RESISTOR R79
3 10k RESISTOR R8,R66,R80
1 1.1k/1W RESISTOR R87
1 220 RESISTOR R89
2 3.9M RESISTOR R9,R65
8 2N3707 TRANSISTOR Q3,Q5,Q7,Q8,Q9,Q10,Q12,Q13 Q7-Q10 HFE 250 OR ABOVE
OR Q12,Q13 MATCH HFE
2N5088 USE ALTERNATE BASE PAD FOR 2N5088
2 2N5457 TRANSISTOR, FET Q1,Q11
2 J309 TRANSISTOR, FET Q2,Q4
1 2N3053 TRANSISTOR, MED POWER Q6
1 7824 VOLTAGE REGULATOR VR1
SWITCH BOARDS/OFF-BOARD COMPONENTS
1 250k POTENTIOMETER R23 OUTPUT
1 25k var POTENTIOMETER R55 ATTACK (MAY HAVE SPDT SWITCH FOR
1 3.6k RESISTOR R18
1 5M var POTENTIOMETER R56 RELEASE
1 4 POLE LORLIN ROTARY SWITCH S2 ADJUST TO THREE POSITIONS
OR USE PUSHBUTTONS FROM HAIRBALL
1 2 POLE LORLIN ROTARY SWITCH S4 ADJUST TO FOUR POSITIONS
OR USE PUSHBUTTONS FROM HAIRBALL
1 .012uF CAPACITOR, FILM C27
1 3.6k RESISTOR R18
1 68k RESISTOR R19
2 56k RESISTOR R20,R21
1 47k RESISTOR R22,R78
1 10M RESISTOR R45
1 120 RESISTOR R58
2 470 RESISTOR R61,R62
1 1.5k RESISTOR R63
1 1.2k RESISTOR R54
1 270k RESISTOR R57
1 600 OHM "T" ATTENUATOR R1 http://www.hairballaudio.com/shop/
1 ALTRAN C-3837-1 T1 HAIRBALL AUDIO
1 CM96731 T2 CINEMAG
OR EA-5002 HAIRBALL AUDIO
1 50V CT POWER TRANSFORMER SELECT FOR LOCAL MAINS VOLTAGE
DUAL SECONDARY OK
1 VU METER U1 USE A TRUE VU METER WITH DIODE BRIDGE
The components listed here should not be construed as a complete list of parts to build a
finished 1176 clone. You will need to supply an appropriate case, knobs etc to finish your clone.
SIGNAL LINE AMP R35
30V
8.2k
SIGNAL PREAMP
R17
8.2k 30V C11
R26
33k 10pF C15
R33
560R .0047uF
TO METER SWITCH
R13 R14 X
47k 22k R29 T2
C10 1.2M BRN 5002 BLUE
1uF PIN 2 XLR
+
T ATTENUATOR C4 R24 +
100uF 15M YEL
R1 T1 R9 Q5
3.9M C8 Q4 2N3707
BLK
OUTPUT
ALTRAN C-3837-1 .15uF ORN
J309 Q6
R5 C2 R8 Q2 RED
CW CW 0.15uF 2N3053 WHT/BLK PIN 3 XLR
PIN 2 XLR 4 27k 10k J309 Q3
GREY
8 2N3707 R30 Y PIN 1 XLR
C1 R25 C9 150k TO METER SWITCH
+
Q1 C7 3.3M R27 VIO
5 0.15uF 1uF 12k 6.8uF
CW
+
+
R11
+
1 R10 C3 CR1 C14 WHT/RED CHASSIS
2N5457 9.1k 6.8uF 15
1N914 C12
R4 R6 2.2M .033uF
+
6 R15 C5 100uF
270R 2.2M 20k R31 C13
100uF 17 R28 .001uF R32
PIN 3 XLR 560 3.3k
R12 R23 39R
2.2k OUTPUT
PIN 1 XLR 16
R16 R34
CHASSIS 100k 8.2k
CHASSIS C22
R7 C6 C16
2.2M 6.8pF .22uF
33pF
R21 R20 R19 R78 R61 R62 R63
56k 56k 68k 47k 470 470 1.5k
20
R22 R58 R45 R64
47k S4(A) 120 10M S4(B) 2.2k
4:1 8:1 12:1 4:1 8:1 12:1 20:1
GR METER DRIVER 20:1
/ /
7 / /
/ /
GR / /
/ ____________________________________________________________________ /
___ +8
R77 (R77 NOT USED IN GR OFF
/ ROTARY SWITCH VERSION)
GR CONTROL AMP POWER SUPPLY
8.2k
R79
/ +4
30V R18 Y
28 15k / 30V
/ 3.6k
R51 VR1 CR7
R65 / 7824 1N4003
3.9M 4.7k AC1
U1 / OUT IN
R67
3.9k /___ C27
X R38 .012uF COM
R87 CR8
47k 1.1k
R47 1N4003 AC2
+
+
44.2k C23 C25
METER R54 6.8uF 2200uF
Q8 1.2k
+
Q11 R36 Q10
2N5457 1M 2N3707 C18 R89
TP10 TP11 29 S2 2N3707 C19 CR2
C17 R42 47uF 6.8uF FDH333 19 220 CT
1uF Q7 182k +
22 Q9
+ 2N3707 2N3707 R55 CR10
ATTACK 1N4003
R40 R49 R52 CR6
+
+
R37 R39 2.4k R43 2.4k
Q12 Q13 470k R48 47k 1N4740A C24 C26
4.7k 38.3k 2200uF 2200uF
R44 2N3707 7.68k
2N3707 TP1 CR9
R56 R82 R81
1k 1k 1N4003
NULL ADJ R41 21 RELEASE
270 R50
TRACKING ADJ 180 R57
R75 270k
R68 R69 2k
R66 R53 C21
10k 820 820 100uF
R46 47k
+
R74 22k 18 R80
1k R76 C20 CR3 10k
R70 18k 6.8uF FDH333
4.7k + R59
"Q" BIAS ADJ R60
R72 13 R73 3.9k
1.5k "O" SET 680
12 14
R71
2k
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