Service Manuals, User Guides, Schematic Diagrams or docs for : . Various SM scena Studio 1176 DIY_1176_REVA_V1
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BILL OF MATERIALS FOR MNATS 1176 REV A VERSION 1.0 BOARD
MAIN BOARD
QUANTITY VALUE DESCRIPTION DESIGNATION NOTES
3 0.15uF CAPACITOR C1 C2 C8
3 1uF CAPACITOR C10 C17 C7
1 47p CAPACITOR C11
4 100uF CAPACITOR C12 C21 C4 C5
1 .033uF CAPACITOR C14
1 .0047uF CAPACITOR C15
1 38p CAPACITOR C16
2 47uF CAPACITOR C18 C9
5 6.8uF CAPACITOR C19 C20 C23 C3 Cx6 Replace Cx6 with link for 1176
1 .22uF CAPACITOR C22
1 2200uF/35V CAPACITOR C24
2 2200uF/50V CAPACITOR C25 C26
1 33pF CAPACITOR C6
1 1N914 DIODE CR1
2 FDH333 DIODE LOW LEAKAGE CR2 CR3
1 1N4740A DIODE ZENER CR6
4 1N4004 RECTIFIER CR10 CR7 CR8 CR9
1 2.2M RESISTOR R10
4 10k RESISTOR R11 R35 R66 R8
4 1k RESISTOR R12 R74 R81 R82
6 47k RESISTOR R13 R16 R38 R46 R52 R53
1 22k RESISTOR R14
1 20k RESISTOR R15
4 8.2k RESISTOR R17 R34 R76 R94
1 15M RESISTOR R24
1 3.3M RESISTOR R25
1 33k RESISTOR R26
1 12k RESISTOR R27
2 560 RESISTOR R28 R33
1 1.2M RESISTOR R29
1 120k RESISTOR R30
1 39 RESISTOR R32
1 1M RESISTOR R36
1 470k RESISTOR R37
3 4.7k RESISTOR R39 R51 R70
2 270 RESISTOR R4 R41
2 2.4k RESISTOR R40 R49
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
2 560k RESISTOR R6 R7
2 3.9k RESISTOR R60 R67
1 2.2k RESISTOR R64
2 3.9M RESISTOR R65 R9
2 820 RESISTOR R68 R69
1 1.5k RESISTOR R72
1 680 RESISTOR R73
1 15k RESISTOR R79
1 1.1k 1Watt RESISTOR R87
1 220 RESISTOR R89
1 820k RESISTOR Rx14 Not used for 1176
2 2N5457 TRANSISTOR FET Q1 Q11
8 2N3707 OR 2N5088 TRANSISTOR Q10 Q12 Q13 Q3 Q5 Q7 Q8 Q9 Q7-Q10 HFE 250 OR ABOVE
Q12,Q13 MATCH HFE
USE ALTERNATE BASE PAD FOR 2N5088
2 J309 TRANSISTOR FET Q2 Q4
1 2N3053 TRANSISTOR MEDIUM POWER Q6
1 5k TRIMMER POTENTIOMETER R44 MULTI TURN TYPE
3 2k TRIMMER POTENTIOMETER R59 R71 R75 PREFERRED
1 7824 VOLTAGE REGULATOR VR1
ROTARY SWITCH BOARDS
QUANTITY VALUE DESCRIPTION DESIGNATION NOTES
1 4 POLE LORLIN ROTARY SWITCH S2
2 2 POLE LORLIN ROTARY SWITCH S4
1 22nF CAPACITOR C27
1 3.6k RESISTOR R16
1 130k RESISTOR R19
3 56k RESISTOR R20 R21 R22
1 10M RESISTOR R45
2 470 RESISTOR R54 R61
1 270k RESISTOR R57
1 180 RESISTOR R58
1 560 RESISTOR R62
1 1.5k RESISTOR R63
ADDITIONAL COMPONENTS
1 600 OHM "T" ATTENUATOR
THESE ITEMS
1 UTC O-12 OR ALTRAN C-3837-1 INPUT TRANSFORMER
AVAILABLE FROM
1 CM96731 OR EA-5002 OUTPUT TRANSFORMER http://hairballaudio.com/shop/
1 50V CT POWER TRANSFORMER SELECT FOR LOCAL MAINS VOLTAGE
SIGNAL LINE AMP R34
30V
8.2k
SIGNAL PREAMP
R17
8.2k 30V C11
R26
33k 47pF C15
R33
560R .0047uF
R13 R14
47k 22k R29 BRN T2
C10 1.2M 5002 X
1uF BLUE
+
C4 R24 +
100uF 15M YEL
R9
3.9M C8 Q4
Q5
2N3707 OUTPUT
.15uF J309 BLK ORN
C2 Q6 RED Y
R5 R8 Q2
0.15uF J309 2N3053 WHTBLK
INPUT 27k 10k Q3
(TO TRANSFORMER/ATTENUATOR 2N3707
C1 Q1 R25 C9 R30
+
CIRCUIT) C7 3.3M R27 GREY
0.15uF 2N5457 120k
1uF 12k 47uF WHTRED
+
+
R11 Rx14
+
R10 C3 C14
10k 6.8uF 820k C12
R4 R6 2.2M .033uF
+
R15 C5 100uF
270R 560k 20k CR1
100uF R28 1N914 R32
R12 R23 560 39R
1k OUTPUT
VIOLET
R16 Cx6 R94
47k 6.8uF 8.2k
R7 C22 +
.22uF C6 C16
560k 38pF
33pF
R21 R20 R19 R61 R62 R63
56k 56k 130k 470 470 1.5k
R22 R58 R45 R64
56k S4(A) 180 10M S4(B) 1.2k
4:1 8:1 12:1 20:1
GR METER DRIVER
/ /
/ /
/ /
GR / /
/ ____________________________________________________________________ /
___ +8
(R77 NOT USED IN GR OFF
/
R77
ROTARY SWITCH VERSION)
GR CONTROL AMP POWER SUPPLY
8.2k
R79
/ +4
30V R18 Y
15k / 30V
/ 3.6k
R51 VR1 CR7
R65 / 4.7k 7824 1N4003 AC1
3.9M U1
R67 / OUT IN
3.9k /___ C27
X R38 .022uF COM
R87 CR8
47k 1.1k
R47 1N4003 AC2
+
+
44.2k C23 C25
METER R54 6.8uF 2200uF
Q8 470
+
Q11 R36 Q10
2N5457 1M 2N3707 C18 R89
TP10 TP11 S2 2N3707 C19 CR2
C17 R42 47uF 6.8uF FDH333 220 CT
1uF Q7 182k +
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 1N4003
NULL ADJ R41 RELEASE 1k 1k
270 R50
TRACKING ADJ 180 R57
R75 270k
R68 R69 2k
R66 R53 C21
10k 820 820 100uF
R46 47k
+
R74 47k R35
1k R76 C20 CR3 10k
R70 8.2k 6.8uF FDH333
4.7k + R59
"Q" BIAS ADJ R60
R72 R73 3.9k
1.5k "O" SET 680
R71
2k
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