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POWER AMPLIFIER
SERIAL NO.
POWER MODULE WJ-A001 And Above
POWER MODULE WJ-B001 And Above
OUTPUT MODULE WJ-C001 And Above
Y
AR
POWER
MODULE IN
IM
OUTPUT
EL
MODULE
PR
CONTENTS
Performance Specifications ........................................ 2 Logo Schematic and PCB ......................................... 16
Notes MC2KW ........................................................... 3 Parts List ............................................................ 17 - 19
POWER MODULE OUTPUT MODULE
Rear Panel .................................................................. 3 Rear Panel ................................................................ 20
Section Location ........................................................ 3 Section Location ...................................................... 20
Block Diagram ........................................................... 4 Interconnection Diagram .................................. 21 - 22
Interconnection Diagram ...................................... 5 - 6 Main Schematic and PCB ................................. 23 - 28
Amp Schematic and PCB ..................................... 7 - 9 Meter Power Supply Schematic and PCB ........... 29 - 32
Heatsink Schematic and PCB ............................ 10 - 11 Meter Led Schematic and PCB .......................... 33 - 34
Heatsink Slave Schematic and PCB ................... 12 - 13 Parts List ............................................................ 35 - 37
Capacitor Schematic and PCB .................................. 14 Repacking Instruction .............................................. 39
Logo Schematic and PCB ......................................... 15
SERVICE MANUAL
PERFORMANCE SPECIFICATIONS
Power Output
2000 watts into an 8, 4 or 2 ohm load is the minimum sine Power Guard
wave continuous average power output. The output RMS Less than 2% THD with up to 14dB overdrive
voltage is: General Specifications
126.5V across 8 ohms
89.5V across 4 ohms MC2KW Output Module Power Requirements
62.2V across 2 ohms 100 Volts, 50/60Hz at 35 watts
110 Volts, 50/60Hz at 35 watts
Output Load Impedance 120 Volts, 50/60Hz at 35 watts
8, 4 and 2 ohms (with three paors of terminals each for 220 Volts, 50/60Hz at 35 watts
impedance) 230 Volts, 50/60Hz at 35 watts
240 Volts, 50/60Hz at 35 watts
Rated Power Band
20Hz to 20,000Hz MC2KW Power Module Power Requirements1
100 Volts, 50/60Hz at 1440 watts
Total Harmonic Distortion 110 Volts, 50/60Hz at 13.0 amps
0.005% maximum harmonic distortion at any power level from 120 Volts, 50/60Hz at 12 amps
250 milliwatts to 2000 watts, 20Hz to 20,000Hz 220 Volts, 50/60Hz at 7.5 amps
230 Volts, 50/60Hz at 6.5 amps
Dynamic Headroom 240 Volts, 50/60Hz at 6.5 amps
2dB Note: Refer to the rear panels of the MC2KW Output Module and
MC2KW Power Modules for the correct voltage.
Frequency Response
+0, -0.25dB from 20Hz to 20,000Hz Overall Dimensions
+0, -3dB from 10Hz to 100,000Hz MC2KW Output Module: Width is 17-3/4 inches (45.09cm),
Height us 12-5/16 inches (31.27cm) including feet, Depth is 26-5/
Sensitivity 8 inches (62.54cm) including the front panel, handles, knobs and
5.0 Volts Balanced Input interconnect cables2
2.5 Volts Unbalanced Input
MC2KW Power Module: Width is 17-3/4 inches (45.09cm),
A-Weighted Signal To Noise Ratio Height us 12-5/16 inches (31.27cm) including feet, Depth is 26-5/
90dB Unbalanced (123dB below rated output) 8 inches (62.54cm) including the front panel, handles and
94dB Balanced (127dB below rated output) interconnect cables2
Intermodulation Distortion Weight
0.005% maximum, if instantaneous peak power output does MC2KW Output Module is 121 poulds (54.9kg) net, 146 pounds
not exceed 4000 watts, for any combination of frequencies (66.2kg) in shipping carton
from 20Hz to 20kHz. MC2KW Power Module is 158 poulds (71.7kg) net, 183 pounds
(83.0kg) in shipping carton
Wide Band Damping Factor
Greater than 40 1
The power requirements listed are for each MC2KW Power
Module, two are required for each MC2KW Power Amplifier
Input Impedance 2
Interconnect cables are supplied with the MC2KW Output
10,000 ohms Module and both MC2KW Power Modules connect to the
MC2KW Output Module.
NOTES
1. The heavy notes on the schematic denote the primary
signal path. 5. WARNING
Parts marked with the symbol have critical
2. Unless otherwise noted, all voltages indicated on the
characteristics. Use only replacement parts recom-
schematics are measured under the following conditions:
mended by the manufacturer.
a. AC input at 120 volts, 50/60Hz.
b. All voltages are +/-10% with respect to ground. A
6. Soft startup procedure for servicing:
high impedance (10 megaohm) voltmeter must be used.
1. Interconnect output module and power modules
3. Unless otherwise specified: 2. Connect Output Module to 120VAC
a. Resistor values are in ohms. 3. Connect Power Modules to variac and set the
b. Capacitor values are microfarads (uF). output to zero.
c. Inductor values are in microhenries (uH). 4. Turn Output Module power switch to on. (This will
energize the power relays in the Power Modules.)
4. On PC board drawings, Square pad indicates: 5. Gradually advance the variac to 120VAC while
a. Polarized Capacitors - Positive monitoring the AC current.
b. Diodes - Cathode
c. Others - Pin 1 2
MC2KW
POWER
REAR PANEL
SECTION LOCATION
TOP VIEW WITH COVER REMOVED
3
BLOCK DIAGRAM
4
MC2KW
OUTPUT
1 INTERCONNECT
5 6
2 AMP 050215 SCH
7 8
MC2KW
POWER
2 AMP 050215 PCB 3A 3B HEATSINK 050216 SCH
9 10
3A 3B HEATSINK 050216 PCB 4A 4B HEATSINK SLAVE 050282 SCH
11 12
MC2KW
POWER
4A 4B HEATSINK SLAVE 050282
GP3
Rev.A
129610
R22
Q18
Q19
GP4
R23
RT1
R20
Q16
Q17
R21
R18
Q14
Q15
R19
R7
R16
Q12
Q13
R17
R14
Q10
Q11
R15
C10
C11
R12
Q8
Q9
R13
GP1
GP2
R2
R4
R1
R3
R5
R6
J3 J1
J6
J5
J2
J4
TO
MASTER HS GRN RED BLU
13
5 CAPACITOR 050217
J3 80V 3 J5
80V
RECT+ J1 J4 80V
RED 1 4 J5
+
67000uF
J5 80V 3 J5
C1
J6 80V 4 J5
67000uF
+
C2
J7 -80V 3 J6
J8 -80V 4 J6
RECT- J2 J9 -80V
GRN 1 3 J6
-80V J10 -80V 4 J6
GP1
RED RED GRN GRN
GP1
J10
J5
J6
J9
129592
Rev.A
GRN
RED
J2
J1
RED RED GRN GRN
J3
J4
J7
J8
14
MC2KW
POWER
6A LOGO 050218
DS1 DS3
R1
1.65k J1:1 LOGO1
15V 2 J5:1
GREEN GREEN J1:2 15V
2 J5:2
J1:3 15V
DS2 DS4 15V 2 J5:3
R2
1.65k J1:4 LOGO1
15V 2 J5:4
GREEN GREEN
DS5 DS6
R3
1.65k
15V
GREEN GREEN
DS7 DS8
R4
1.65k
15V
GREEN GREEN LOGO1
J2:1
6B J5:1
J2:2 NC
6B J5:2
R9
1k J2:3 B+
15V 6B J5:3
15
6B LOGO 050218
J5:1 LOGO2
6A J2:1
NC
DS9
J5:2
6A J2:2
J5:3 B+
6A J2:3
16
MC2KW
POWER
PARTS LIST
Ref. No. Description Part No.
1 INTERCONNECT Q1 TRANSISTOR PNP 132224
T1 POWER TRANSFORMER 050230 Q2 TRANSISTOR PNP POWER 132255
D1 DIODE BRIDGE RECT 070181 Q3 TRANSISTOR NPN 132223
RT1 ASSY THERMISTOR 052017 Q4 TRANSISTOR PNP 132224
RT2 ASSY THERMISTOR 052017 Q5 TRANSISTOR NPN 132223
CB CIRCUIT BREAKER 20A 240V 088022 Q6 TRANSISTOR PNP 132224
Q7 TRANSISTOR PNP 132224
Q8 TRANSISTOR PNP 2SA1321C 132286
2 AMPLIFIER PCB 050215 Q9 TRANSISTOR NPN 2SC3334C 132285
C1 CAP MONO 10PF 200V 10% 061297 Q10 TRANSISTOR N JFET 132222
C2 CAP ELECT 100UF 25V 066447 Q11 TRANSISTOR N JFET 132222
C3 CAP MONO .1UF 50V 20% 061305 Q12 TRANSISTOR SI NPN 25V 132254
C4 CAP MONO .1UF 50V 20% 061305 Q13 TRANSISTOR PNP POWER 132255
C5 CAP MONO .1UF 50V 20% 061305 Q14 TRANSISTOR PNP 132224
C6 CAP ELECT 10UF 50V 066445 Q15 TRANSISTOR NPN 132223
C7 CAP ELECT 22UF 100V 066506 Q16 TRANSISTOR SI NPN 25V 132254
C8 CAP MONO .1UF 50V 20% 061305 Q17 TRANSISTOR PNP POWER 132255
C9 CAP MONO .1UF 50V 20% 061305 Q18 TRANSISTOR NPN 132223
C10 CAP ELECT 10UF 50V 066445 Q19 TRANSISTOR PNP 132224
C11 CAP ELECT 100UF 25V 066447 Q20 TRANSISTOR SI NPN 25V 132254
C12 CAP ELECT 10UF 100VDC 066462 Q21 TRANSISTOR PNP POWER 132255
C13 CAP MONO 1PF 100V NPO 061319 Q22 TRANSISTOR NPN 2SC3334C 132285
C14 CAP ELECT 10UF 100VDC 066462 Q23 TRANSISTOR PNP SILICON 132172
C15 CAP MONO 220PF 200V 10% 061301 Q24 TRANSISTOR PNP 2SA1321C 132286
C16 CAP MONO 470PF 100V 10% 061302 Q25 TRANSISTOR NPN 2SC3334C 132285
C17 CAP MONO 1000PF 50V 10% 061303 Q26 TRANSISTOR NPN SILICON 132171
C18 CAP MONO 1000PF 50V 10% 061303 Q27 TRANSISTOR PNP 2SA1321C 132286
C19 CAP MONO 100PF 100V 10% 061300 Q28 TRANSISTOR PNP 2SA1321C 132286
C20 CAP MONO 100PF 100V 10% 061300 Q29 TRANSISTOR NPN 2SC3334C 132285
C21 CAP ELECT 220UF 25V 066507 Q30 TRANSISTOR NPN 132223
C22 CAP MONO 47PF 200V 10% 061299 Q31 TRIAC OPTOCOUPLER 131024
C23 CAP MONO 47PF 200V 10% 061299 Q32 TRANSISTOR PNP SILICON 132172
C24 CAP MONO 47PF 200V 10% 061299 Q33 TRANSISTOR PNP 2SA1321C 132286
C25 CAP MONO .1UF 50V 20% 061305 Q34 TRANSISTOR NPN 2SC3334C 132285
C26 CAP MONO .1UF 50V 20% 061305 Q35 TRANSISTOR NPN SILICON 132171
D1 DIODE SILICON 070047 Q36 TRANSISTOR NPN 132223
D2 DIODE SILICON 070047 R1 RES MF 47.5K 1% 1/4W 144108
D3 DIODE SILICON 070047 R2 RES MF 2.21K .5% 1/4W 144396
D4 DIODE SILICON 070047 R3 RES MF 2.21K .5% 1/4W 144396
D5 DIODE SILICON 070047 R4 RES MET OX 430 OHM .5W 5% 137095
D6 DIODE SIL 400 PIV @ 1.5A 070031 R5 RES MF 47.5K 1% 1/4W 144108
D7 DIODE SIL 400 PIV @ 1.5A 070031 R6 RES MF 4.75K 1% 1/4W 144097
D8 DIODE SILICON 070047 R7 RES MF 475 OHM 1% 1/4W 144086
D9 DIODE SILICON 070047 R8 RES MF 47.5K 1% 1/4W 144108
D10 DIODE SILICON 070047 R9 RES MF 1.91K .5% 1/4W 144395
J1 HDR SHROUDED 2ROW 26PIN V 117870 R10 RES MF 47.5K 1% 1/4W 144108
J2 CONN 3 POS M MTS100 NRML 117214 R11 RES MF 1.91K .5% 1/4W 144395
J3 CONN 8 POS M FRICTION LOCK 117275 R12 RES MF 221K 1% 1/4W 144421
J4 CONN 8 POS M FRICTION LOCK 117275 R13 RES MF 475 OHM 1% 1/4W 144086
J5 CONN 3 POS M MTS100 NRML 117214 R14 RES MF 100 OHM 1% 1/4W 144196
J6 BLADE FASTON W/FEET 117708 R15 RES MET OX 430 OHM .5W 5% 137095
J7 BLADE FASTON W/FEET 117708 R16 RES MF 100 OHM 1% 1/4W 144196
J8 HEADER 8 PIN MTA-156 117717 R17 RES MF 1K 1% 1/4W 144090
J9 HEADER 8 PIN MTA-156 117717 R18 RES MF 100 OHM 1% 1/4W 144196
J10 BLADE FASTON W/FEET 117708 R19 RES MF 100 OHM 1% 1/4W 144196
J11 BLADE FASTON W/FEET 117708 R20 RES MF 3.32K 1% 1/4W 144095
J12 BLADE FASTON W/FEET 117708 R21 RES MF 2.21M 1/4W 144265
J13 BLADE FASTON W/FEET 117708 R22 RES MF 1K 1% 1/4W 144090
J15 CONN 4 PIN 117215 R23 RES MF 475K 1% 1/4W 144364
J16 BLADE FASTON W/FEET 117708 R24 RES MET OX 47 OHM .5W 5% 137096
K1 RELAY POWER 24VDC/TV-15 087042 R25 RES MET OX 680 OHM .5W 5% 137093
17
PARTS LIST con't
R26 RES MF 1K 1% 1/4W 144090 GP3 STANDOFF 6-32 X 1/4 PCB MNT 112130
R27 RES MF 475K 1% 1/4W 144364 GP4 STANDOFF 6-32 X 1/4 PCB MNT 112130
R28 RES MET OX 47 OHM .5W 5% 137096 HS1 HEATSINK 018787
R29 RES MF 47.5K 1% 1/4W 144108 J1 CONN 8 POS M FRICTION LOCK 117275
R30 RES MF 47.5K 1% 1/4W 144108 J2 BLADE FASTON W/FEET 117708
R31 RES MF 2.21K 1% 1/4W 144298 J3 CONN 3 POS M MTS100 NRML 117214
R32 RES MF 2.21K 1% 1/4W 144298 J4 CONN 2 POS RIGHT ANGLE 117274
R33 RES MF 221 OHM 1% 1/4W 144172 J5 BLADE FASTON W/FEET 117708
R34 RES MF 221 OHM 1% 1/4W 144172 J6 BLADE FASTON W/FEET 117708
R35 RES MF 806 OHM 1% 1/4W 144089 Q2 TRANSISTOR NPN SILICON 132171
R36 RES MF 806 OHM 1% 1/4W 144089 Q3 TRANSISTOR PNP SILICON 132172
R37 RES MF 221 OHM 1% 1/4W 144172 Q6 TRANSISTOR MJE15032 NPN 132288
R38 RES MF 221 OHM 1% 1/4W 144172 Q7 TRANSISTOR MJE15033 PNP 132289
R39 RES MF 681 OHM 1% 1/4W 144195 Q8 TRANS NPN THERMTRAK 132300
R40 RES MF 681 OHM 1% 1/4W 144195 Q9 TRANS PNP THERMTRAK 132301
R41 RES MF 267K 1% 1/4W 144118 Q10 TRANS NPN THERMTRAK 132300
R42 RES MF 1.5K 1% 1/4W 144128 Q11 TRANS PNP THERMTRAK 132301
R43 RES MF 365 OHM 1% 1/4W 144071 Q12 TRANS NPN THERMTRAK 132300
R44 RES MF 221 OHM 1% 1/4W 144172 Q13 TRANS PNP THERMTRAK 132301
R45 RES MF 221 OHM 1% 1/4W 144172 Q14 TRANSR NPN THERMTRAK 132300
R46 RES MF 6.49K .5% 1/4W 144401 Q15 TRANSR PNP THERMTRAK 132301
R47 RES MF 5.36K .5% 1/4W 144399 Q16 TRANSR NPN THERMTRAK 132300
R48 RES MET OX 680 OHM .5W 5% 137093 Q17 TRANS PNP THERMTRAK 132301
R49 RES MF 5.36K .5% 1/4W 144399 Q18 TRANS NPN THERMTRAK 132300
R50 RES FP 10 OHM 5% 1/4W 137025 Q19 TRANS PNP THERMTRAK 132301
R51 RES FP 10 OHM 5% 1/4W 137025 R1 RES MF 1K 1% 1/4W 144090
R52 RES FP 10 OHM 5% 1/4W 137025 R2 RES MF 2.21 OHM 1% 1/4W 144378
R53 RES FP 10 OHM 5% 1/4W 137025 R3 RES MF 1K 1% 1/4W 144090
R54 POT 500 OHMS LINEAR 20% 134396 R4 RES MET OX 220 OHM .5W 5% 137097
R55 RES MF 22.1K 1% 1/4W 144187 R5 RES MET OX 220 OHM .5W 5% 137097
R56 RES MET OX 1.8k .5W 5% 137094 R6 RES MF 22.1K 1% 1/4W 144187
R57 RES MF 22.1K 1% 1/4W 144187 R7 RES MF 22.1K 1% 1/4W 144187
R58 RES MF 1.5K 1% 1/4W 144128 R8 RES MET OX 680 OHM .5W 5% 137093
R59 RES MF 475 OHM 1% 1/4W 144086 R9 RES MET OX 680 OHM .5W 5% 137093
R60 RES MF 10K 1% 1/4W 144053 R11 RES MET OX 47 OHM .5W 5% 137096
R61 RES MET OX 430 OHM .5W 5% 137095 R12 RES WW .68 OHM 5W 5% 139245
R62 RES MF 221 OHM 1% 1/4W 144172 R13 RES WW .68 OHM 5W 5% 139245
R63 RES MF 221 OHM 1% 1/4W 144172 R14 RES WW .68 OHM 5W 5% 139245
R64 RES MET OX 1.8k .5W 5% 137094 R15 RES WW .68 OHM 5W 5% 139245
R65 RES MF 15K 1% 1/4W 144412 R16 RES WW .68 OHM 5W 5% 139245
R66 RES MET OX 430 OHM .5W 5% 137095 R17 RES WW .68 OHM 5W 5% 139245
R67 POT 500 OHMS LINEAR 20% 134396 R18 RES WW .68 OHM 5W 5% 139245
U1 IC OPERTIONAL AMP LOW NSE 133067 R19 RES WW .68 OHM 5W 5% 139245
U2 IC OPERTIONAL AMP LOW NSE 133067 R20 RES WW .68 OHM 5W 5% 139245
R21 RES WW .68 OHM 5W 5% 139245
R22 RES WW .68 OHM 5W 5% 139245
3A HEATSINK PCB 050216 R23 RES WW .68 OHM 5W 5% 139245
3B C2 CAP MONO .01UF 50V 20% X7R 061304 R25 RES MF 2.21 OHM 1% 1/4W 144378
C3 CAP ELECT 47UF 35V 066446 R26 RES MF 2.21 OHM 1% 1/4W 144378
C4 CAP ELECT 47UF 35V 066446 R27 RES MF 2.21 OHM 1% 1/4W 144378
C5 CAP MONO .01UF 50V 20% X7R 061304 RT1 SENSOR THERMAL 144249
C8 CAP DISC MONO .47UF 50V 061249
C10 CAP POLYPROP 1uF 160V 5% 064451
C11 CAP POLYPROP 1uF 160V 5% 064451 4A HEATSINK SLAVE PCB 050282
D1 DIODE SILICON 070047 4B C10 CAP POLYPROP 1uF 250V 5% 064451
D2 DIODE SILICON 070047 C11 CAP POLYPROP 1uF 250V 5% 064451
D3 DIODE SILICON 070047 GP1 STANDOFF 6-32 X 1/4 PCB MNT 112130
D4 DIODE SILICON 070047 GP2 STANDOFF 6-32 X 1/4 PCB MNT 112130
D5 DIODE SILICON 070047 GP3 STANDOFF 6-32 X 1/4 PCB MNT 112130
D6 DIODE SILICON 070047 GP4 STANDOFF 6-32 X 1/4 PCB MNT 112130
D7 DIODE SILICON 070047 HS1 HEATSINK 018787
GP1 STANDOFF 6-32 X 1/4 PCB MNT 112130 J1 CONN 3 POS M MTS100 NRML 117214
GP2 STANDOFF 6-32 X 1/4 PCB MNT 112130 J2 BLADE FASTON W/FEET 117708
18
MC2KW
POWER
PARTS LIST con't
J3 CONN 3 POS M MTS100 NRML 117214 J6 BLADE FASTON W/FEET 117708
J4 CONN 2 POS RIGHT ANGLE 117274 Q2 TRANSISTOR NPN SILICON 132171
J5 BLADE FASTON W/FEET 117708 Q3 TRANSISTOR PNP SILICON 132172
J6 BLADE FASTON W/FEET 117708 Q6 TRANSISTOR MJE15032 NPN 132288
Q8 TRANS NPN THERMLTRAK 132300 Q7 TRANSISTOR MJE15033 PNP 132289
Q9 TRANS PNP THERMLTRAK 132301 Q8 TRANS NPN THERMLTRAK 132300
Q10 TRANS NPN THERMLTRAK 132300 Q9 TRANS PNP THERMLTRAK 132301
Q11 TRANS PNP THERMLTRAK 132301 Q10 TRANS NPN THERMLTRAK 132300
Q12 TRANS NPN THERMLTRAK 132300 Q11 TRANS PNP THERMALTRAK 132301
Q13 TRANS PNP THERMLTRAK 132301 Q12 TRANS NPN THERMALTRAK 132300
Q14 TRANS NPN THERMLTRAK 132300 Q13 TRANS PNP THERMLTRAK 132301
Q15 TRANS PNP THERMLTRAK 132301 Q14 TRANS NPN THERMLTRAK 132300
Q16 TRANS NPN THERMLTRAK 132300 Q15 TRANS PNP THERMLTRAK 132301
Q17 TRANS PNP THERMLTRAK 132301 Q16 TRANS NPN THERMLTRAK 132300
Q18 TRANS NPN THERMLTRAK 132300 Q17 TRANS PNP THERMLTRAK 132301
Q19 TRANS PNP THERMLTRAK 132301 Q18 TRANS NPN THERMLTRAK 132300
R1 RES MF 1K 1% 1/4W 144090 Q19 TRANS PNP THERMLTRAK 132301
R2 RES MF 2.21 OHM 1% 1/4W 144378 R1 RES MF 1K 1% 1/4W 144090
R3 RES MF 1K 1% 1/4W 144090 R2 RES MF 2.21 OHM 1% 1/4W 144378
R4 RES MF 2.21 OHM 1% 1/4W 144378 R3 RES MF 1K 1% 1/4W 144090
R5 RES MF 2.21 OHM 1% 1/4W 144378 R4 RES MET OX 220 OHM .5W 5% 137097
R6 RES MF 2.21 OHM 1% 1/4W 144378 R5 RES MET OX 220 OHM .5W 5% 137097
R7 RES MET OX 47 OHM .5W 5% 137096 R6 RES MF 22.1K 1% 1/4W 144187
R12 RES WW .68 OHM 5W 5% 139245 R7 RES MF 22.1K 1% 1/4W 144187
R13 RES WW .68 OHM 5W 5% 139245 R8 RES MET OX 680 OHM .5W 5% 137093
R14 RES WW .68 OHM 5W 5% 139245 R9 RES MET OX 680 OHM .5W 5% 137093
R15 RES WW .68 OHM 5W 5% 139245 R11 RES MET OX 47 OHM .5W 5% 137096
R16 RES WW .68 OHM 5W 5% 139245 R12 RES WW .68 OHM 5W 5% 139245
R17 RES WW .68 OHM 5W 5% 139245 R13 RES WW .68 OHM 5W 5% 139245
R18 RES WW .68 OHM 5W 5% 139245 R14 RES WW .68 OHM 5W 5% 139245
R19 RES WW .68 OHM 5W 5% 139245 R15 RES WW .68 OHM 5W 5% 139245
R20 RES WW .68 OHM 5W 5% 139245 R16 RES WW .68 OHM 5W 5% 139245
R21 RES WW .68 OHM 5W 5% 139245 R17 RES WW .68 OHM 5W 5% 139245
R22 RES WW .68 OHM 5W 5% 139245 R18 RES WW .68 OHM 5W 5% 139245
R23 RES WW .68 OHM 5W 5% 139245 R19 RES WW .68 OHM 5W 5% 139245
RT1 SENSOR THERMAL 144249 R20 RES WW .68 OHM 5W 5% 139245
R21 RES WW .68 OHM 5W 5% 139245
R22 RES WW .68 OHM 5W 5% 139245
5 CAPACITOR PCB 050217 R23 RES WW .68 OHM 5W 5% 139245
C2 CAP MONO .01UF 50V 20% X7R 061304 R25 RES MF 2.21 OHM 1% 1/4W 144378
C3 CAP ELECT 47UF 35V 066446 R26 RES MF 2.21 OHM 1% 1/4W 144378
C4 CAP ELECT 47UF 35V 066446 R27 RES MF 2.21 OHM 1% 1/4W 144378
C5 CAP MONO .01UF 50V 20% X7R 061304 RT1 SENSOR THERMAL 144249
C8 CAP DISC MONO .47UF 50V 061249
C10 CAP POLYPROP 1uF 160V 5% 064451
C11 CAP POLYPROP 1uF 160V 5% 064451 6A LOGO AND LOGOB PCB 050218
D1 DIODE SILICON 070047 6B DS1 LED GR 5MM HI-INT VF[V] 3.5 058165
D2 DIODE SILICON 070047 DS2 LED GR 5MM HI-INT VF[V] 3.5 058165
D3 DIODE SILICON 070047 DS3 LED GR 5MM HI-INT VF[V] 3.5 058165
D4 DIODE SILICON 070047 DS4 LED GR 5MM HI-INT VF[V] 3.5 058165
D5 DIODE SILICON 070047 DS5 LED GR 5MM HI-INT VF[V] 3.5 058165
D6 DIODE SILICON 070047 DS6 LED GR 5MM HI-INT VF[V] 3.5 058165
D7 DIODE SILICON 070047 DS7 LED GR 5MM HI-INT VF[V] 3.5 058165
GP1 STANDOFF 6-32 X 1/4 PCB MNT 112130 DS8 LED GR 5MM HI-INT VF[V] 3.5 058165
GP2 STANDOFF 6-32 X 1/4 PCB MNT 112130 DS9 LED GR 5MM HI-INT VF[V] 3.5 058165
GP3 STANDOFF 6-32 X 1/4 PCB MNT 112130 J1 CONN 4 PIN 117215
GP4 STANDOFF 6-32 X 1/4 PCB MNT 112130 J2 CONN 3 POS M MTS100 NRML 117214
HS1 HEATSINK 018787 J5 CONN 3 POS M MTS100 NRML 117214
J1 CONN 8 POS M FRICTION LOCK 117275 R1 RES MF 1.65K 1% 1/4W 144093
J2 BLADE FASTON W/FEET 117708 R2 RES MF 1.65K 1% 1/4W 144093
J3 CONN 3 POS M MTS100 NRML 117214 R3 RES MF 1.65K 1% 1/4W 144093
J4 CONN 2 POS RIGHT ANGLE 117274 R4 RES MF 1.65K 1% 1/4W 144093
J5 BLADE FASTON W/FEET 117708 R9 RES MF 1K 1% 1/4W 144090
19
REAR PANEL
- A + 8W - B + CLASS 3 WIRING - C +
- A + 4W - B + CLASS 3 WIRING - C +
- A + 2W - B + CLASS 3 WIRING - C +
TO POWER MODULE (A) BALANCED TO POWER MODULE (B)
120V 50/60Hz
35 WATTS 1 2 POWER OUTPUT INPUTS INPUT UNBALANCED 1 2
CONTROL MODE
IN
IN
BAL UNBAL
OUT
OUT
SECTION LOCATION
TOP VIEW WITH COVER REMOVED
20
MC2KW
OUTPUT
1 INTERCONNECT
21 22
2A MAIN 050219 SCH 1 OF 3
23 24
MC2KW
OUTPUT
2B MAIN 050219 SCH 2 OF 3
25 26
2 MAIN 050219 SCH 3 OF 3 2 MAIN 050219 PCB
27 28
MC2KW
OUTPUT
3 METER POWER SUPPLY 050220 SCH
29 30
3 METER POWER SUPPLY 050220 PCB
C14
J13
R21 J14 J3 J2
D 12
D 13
D 14
D 15
Q3 U4
C10
J11
GRN GRN W HT
Q1 Q5
R 25
R 20
R9
C1
C4
R10
R12
R13
R3
Q2 Q4 J10
C12
D10
J9
D11
D6
D5
D4
D8
D9
C11
C7
R14 C8 J5
R19
U2
R18
R7
R ED
R23
U3
C13 J4
C5
YEL R ED
D2
D3
D1
R22
U1 J6
R 16
R 17
R5
R8
R6
R2
R1
R4
C9
D 16
D 17
D 18
D 19
D7
C3
C18
R 26
R 11
C2 C6
129595 U5 J8
C16
BLU
700120
R15 Rev.A
J12 C15 J7
JM P1 J1 J16
BLU
C17
J15 T1
R24
+
31 32
MC2KW
OUTPUT
4A METER LED 050221 SCH and PCB 4B LOGO1 4C LOGO2 4D POWER GUARD
DS1 DS5
2 R5
CCW BLUE 365 LIGHTS ON
1 3 J1:1
-15V 3A J3:1
R1
500 DS2 DS6 J1:2 LOGO
R6 LOGO 3A J3:2
CCW 2 365
1 3 J1:3 PG LIGHT J5:1 LOGO1 J6:1 LOGO2
-15V 4A J3:1
DS11 DS10
PG_LIGHT 3A J3:3 4A J2:1
R2 BLUE-GREEN PG LIGHT J7:1
J4:1 4A
DS9
500 15V J5:2 NC J6:2 NC
J1:4 4A J2:2
15V 3A J3:1 4A J3:2
JMP1
JMP2
D1
J5:3 B- B- 15V J7:2
DS3 DS7 J1:5 -15V 4A J2:3 J6:3 J4:2 4A
R7 -15V 3A J3:2 4A J3:3
CCW 2 365
1 3 BLUE STBY LED J7:3
-15V J1:6 GND J4:3 4A
3A J3:3
R3
500 DS4 DS8 GND J7:4
2 R8 J4:4 4A D2
CCW 365
1 3
-15V J2:1 LOGO1
R4 LOGO 4B J5:1
500 BLUE-GREEN
J2:2 NC
4B J5:2
R9
1k J2:3 B-
PG_LIGHT
-15V 4B J5:3
DS10
15V
15V
J3:1 LOGO2
129596C
LOGO 4C J6:1
R e v.A
J4:3 1.37k
J3:2 NC
R12
R11
681
4C J6:2
R10
681 J3:3 B-
J4:1
J4:2
J4:4
-15V 4C J6:3
DS9
STBY LED
PG LIGHT
D1
GND
15V
R e v.A
J7:1 4D
J7:2 4D
J7:3 4D
J7:4 4D
J6
J7
J5
D2
R e v.A
DS11
BLUE GREEN BLUE GREEN
129596D
DS1 DS3
129596B
R1 R2 R3 R4
JM P 2
JM P 1
DS2 DS4
129596A
Rev.A
R 10
R 12
R 11
R5
R6
R8
R9
R7
DS5 DS7
J4 J3 J1 J2
DS6 DS8
33 34
PARTS LIST
Ref. No. Description Part No.
1 INTERCONNECT J9 HEADER SHROUDED 2ROW 26PIN V 117870 R30 RES MF 221 OHM 1% 1/4W 144172
J1 CABLE ASSY 16 COND 171746 J11 HEADER SHROUDED 2ROW 26PIN V 117870 R31 RES MF 22.1K 1% 1/4W 144187
J2 CABLE ASSY 24 COND 171745 J12 BLADE FASTON W/FEET 117708 R32 RES MF 22.1K 1% 1/4W 144187
J3 CABLE ASSY 24 COND 171745 J13 BLADE FASTON W/FEET 117708 R33 RES MF 221K 1% 1/4W 144421
J4 CABLE ASSY 16 COND 171746 J14 BLADE FASTON W/FEET 117708 R34 RES MF 221K 1% 1/4W 144421
M1 METER MC2KW 124090 J15 BLADE FASTON W/FEET 117708 R35 RES MF 4.75K 1% 1/4W 144097
S1 SWITCH ASSY POWER/METER 052126 J16 BLADE FASTON W/FEE◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo