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MQ 3600
Service Manual
58 pgs10.69 Mb0

Phonic MQ 3300, MQ 3400, MQ 3600 Service Manual

PROFESSIONAL GRAPHIC EQUALIZERS
MQ 3300/3400/3600MQ 3300/3400/3600
PROFESSIONAL GRAPHIC EQUALIZERS
3300/3400/3600MQ MQ 3300/3400/3600
PANEL LAYOUT
MQ 3300
MQ 3400 PANEL LAYOUT................................4
MQ 3600 PANEL LAYOUT................................5
MQ 3300 SYSTEM BLOCK DIAGRAM..............6
MQ 3400 SYSTEM BLOCK DIAGRAM..............7
MQ 3600 SYSTEM BLOCK DIAGRAM..............8
PCB
MQ 3300 VR & SWITCH PCB............................9
MQ 3400 VR & SWITCH PCB...........................10
MQ 3300 3400 3600 MAIN BOARD PCB -A.......11
MQ 3600 MAIN BOARD PCB-B ......................12
MQ 3600 VR & SWITCH PCB...........................13
MQ 3600 REGULATED IC PCB......................14
SCHEMA TIC
MQ 3300
PANEL LAYOUT................................3
MQ 3600
EQUALIZER SCHEMATIC............................20
CH 1 INPUT & OUTPUT SCHEMATICS............21
CH 2 INPUT & OUTPUT SCHEMATICS............22
PART LIST
MQ 3300
MAIN BOARD PCB-PART LIST......................23
VR & SWITCH PCB-PART LIST.......................27
MISCELLAN OUS ITEMS
E .............................28
POWER REQUIREME T CLASSIFICATION
N ...30
MQ 3400
MAIN BOARD PCB-PART LIST......................32
VR & SWITCH PCB-PART LIST.....................37
MISCELLAN OUS ITEMS
E .............................38
POWER REQUIREME T CLASSIFICATION
N ...40
MQ 3600
PCB-PART LIST...........................................42
EQUALIZER SCHEMATIC.............................15
INPUT & OUTPUT SCHEMATICS....................16
MQ 3400
EQUALIZER SCHEMATIC.............................17
CH 1 INPUT & OUTPUT SCHEMATICS.............18
CH 2 INPUT & OUTPUT SCHEMATICS.............19
Phonic reserves the right to improve or alter any information supplied within this document without prior notice.
V2.1 09/11/02
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
VR & SWITCH PCB-PART LIST.....................47
MISCELLAN OUS ITEMS
E .............................50
POWER REQUIREME T CLASSIFICATION
N ...53
DIMENSIONS
MQ 3300 DIMENSIONS.................................55
MQ 3400 DIMENSIONS.................................56
MQ 3600 DIMENSIONS.................................57
Page 2
PANEL LAYOUT
KNOB: 542-20040-120-0
SW: 210-02201-010-0
POWER LED(RED)
100-00110-000-0
OUTPUT INPUTOUTPUT INPUT
UNBALANCEDUNBALANCED
LEVEL
KNOB: 541-20020-120-0
POT: 026-20332-000-0
LED(GRN)
100-00150-000-0
LED(RED)
100-00110-000-0
KNOB: 542-60090-122-0
SW: 210-02201-000-0
BALANCEDBALANCED
(+) ( - ) (G)(+) ( - ) (G)
JACK CONFIGURATIONS
FOR INPUT JACKS
JACK CONFIGURATIONS
FOR INPUT JACKS
6D3/J:211-01602-020-0
(RED)
PEAK
100-00110-000-0
TO REDUCE THE RISK OF ELECTRIC SHOCK,
TO REDUCE THE RISK OF FIRE OR ELECTRICAL
DO NOT REMOVE COVER (OR BACK).
SHOCK,DO NOT EXPOSE THIS EQUIPMENT
NO USER SERVICEABLE PARTS INSIDE.
TO RAIN OR MOISTURE.
REFER SERVICING TO QUALIFIED SERVICE
TO REDUCE THE RISK OF FIRE OR ELECTRICAL
PERSONNEL
SHOCK,DO NOT EXPOSE THIS EQUIPMENT
TO REDUCE THE RISK OF ELECTRIC SHOCK,
TO RAIN OR MOISTURE.
DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL
KNOB: 541-20020-320-0
POT: 026-20332-000-0
MQ 3300
PHONIC CORPORATION
CAUTION CAUTION
WARNING
FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE ,
WARNING
FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE ,
T1AT1A
POWER CORD:370-24510-2030
STR, REL, BUSHING:527-06000-000-0
AC120V
50/60Hz
17W
AC120V
50/60Hz
17W
MQ 3300/3400/3600 SERVICE MANUAL
WARNING WARNING
REPLACE ONLY WITH SAME
TYPE AND RATING OF FUSE .
REPLACE ONLY WITH SAME
TYPE AND RATING OF FUSE .
FUSE:280-10261-000-0
FUSE HOLDER:281-04000-000-0
Page 4Page 3
PANEL LAYOUT
POWER
KNOB: 542-20040-120-0
POWER LED(RED)
100-00110-000-0
LED(GRN)
100-00150-000-0
LED(RED)
100-00110-000-0
Ch2 LEVEL:
KNOB: 541-20020-120-0
POT: 026-20332-000-0
SW: 210-02101-010-0
Ch1/2
KNOB: 542-60090-122-0
SW: 210-02201-000-0
6D3/J:211-01602-020-0
CHANNEL TWOCHANNEL TWO CHANNEL ONECHANNEL ONE
OUTPUT INPUTOUTPUT INPUT OUTPUT INPUTOUTPUT INPUT
PEAK LED(RED)
100-00110-000-0
UNBALANCEDUNBALANCED
BALANCEDBALANCED
(+) ( - ) (G)(+) ( - ) (G)
JACK CONFIGURATIONS
FOR INPUT JACKS
JACK CONFIGURATIONS
FOR INPUT JACKS
CH2:
KNOB: 541-20020-320-0
POT: 026-20332-000-0
TO REDUCE THE RISK OF FIRE OR ELECTRICAL
TO REDUCE THE RISK OF ELECTRIC SHOCK,
SHOCK,DO NOT EXPOSE THIS EQUIPMENT
DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
TO RAIN OR MOISTURE.
TO REDUCE THE RISK OF FIRE OR ELECTRICAL
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL
Ch1 LEVEL:
KNOB: 541-20020-120-0
POT: 026-20332-000-0
CH1:
KNOB: 541-20020-320-0
POT: 026-20332-000-0
T1AT1A
SHOCK,DO NOT EXPOSE THIS EQUIPMENT
TO REDUCE THE RISK OF ELECTRIC SHOCK,
TO RAIN OR MOISTURE.
DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL
CAUTION CAUTION
WARNING WARNING
WARNING
FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE ,
REPLACE ONLY WITH SAME
TYPE AND RATING OF FUSE .
WARNING
FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE ,
REPLACE ONLY WITH SAME
TYPE AND RATING OF FUSE .
FUSE:280-10261-000-0
FUSE HOLDER:281-04000-000-0
MQ 3400
PHONIC CORPORATION
POWER CORD:370-24510-2030
STR, REL, BUSHING:527-06000-000-0
AC120V
50/60Hz
17W
AC120V
50/60Hz
17W
MQ 3300/3400/3600 SERVICE MANUAL
Page 4Page 4
SYSTEM BLOCK DIAGRAM
POWER LED(RED)
100-00110-000-0
CH1/ 2 HPF
KNOB: 541-20020-120-0
POT: 026-20332-000-0
POWER
KNOB: 542-20040-120-0
SWITCH: 210-02101-0100
XLR JACK:
211-03300-010-0
LED(GRN)
100-00150-000-0
LED(RED)
100-00110-000-0
KNOB: 542-60090-122-0
SW: 210-02201-000-0
XLR JACK:
211-03300-090-0
PANEL LAYOUT
6D3/J:211-01602-020-0
CH1/ 2 LEVEL
KNOB: 541-20020-120-0
POT: 026-20332-000-0
CH1/ CH2
KNOB: 541-20020-320-0
POT: 026-20332-000-0
PEAK LED(RED)
100-00110-000-0
MQ 3600
PHONIC CORPORATION
POWER CORD:370-24510-2030
STR, REL, BUSHING:527-06000-000-0
MQ 3300/3400/3600 SERVICE MANUAL
Page 5
FUSE:280-10261-000-0
FUSE HOLDER:281-04000-000-0
MQ 3300 SYSTEM BLOCK DIAGRAM
MQ 3300 SYSTEM BLOCK DIAGRAM
MQ 3300
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
Page 6
MQ 3400 SYSTEM BLOCK DIAGRAM
MQ 3400 SYSTEM BLOCK DIAGRAM
MQ 3400
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
Page 7
MQ 3600 SYSTEM BLOCK DIAGRAM
MQ 3600 SYSTEM BLOCK DIAGRAM
MQ 3600
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
Page 8
VR & SWITCH PCB
MQ 3300 VR & SWITCH PCB
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
Page 4Page 9
VR & SWITCH PCB
MQ 3400 VR & SWITCH PCB
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
Page 4Page 10
MQ 3300 3400 3600 MAIN BOARD PCB -A
MQ 3300 3400 3600 MAIN BOARD PCB -A
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
Page 4Page 11
MAIN BOARD PCB-B
MQ 3600 MAIN BOARD PCB-B
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
Page 4
Page 12
VR & SWITCH PCB
MQ 3600 VR & SWITCH PCB
290-03000-500-0
290-03000-202-0
290-03000-500-0
PHONIC CORPORATION
026-20332-000-0 026-20332-000-0
MQ 3300/3400/3600 SERVICE MANUAL
Page 4Page 13
REGULATED POWER SUPPLY IC PCB
MQ 3600 REGULATED POWER SUPPLY IC PCB
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
Page 4Page 14
EQUALIZER SCHEMATIC
EQ A
EQ B
VCC
R9XX
C8XX
VR415
20KW
500HZ
VR414
20KW
400HZ
VR413
20KW
320HZ
VR412
20KW
250HZ
VR411
20KW
200HZ
VR410
20KW
160HZ
VR409
20KW
125HZ
100HZ
*C308 0.56
80HZ
*C307 0.82
63HZ
*C306 0.82
50HZ
*C305 1.5/16
MQ 3300 EQUALIZER SCHEMATIC
C554
220uF/50V
+
C552
220uF/25V
VEE
1
4558
IC102A
+
-
8 4
3
2
C9XX
R8XX
VCC
C940
0.1uF
VEE
C938
0.1uF
C918
0.1uF
TVR815
VR431
C916
0.1uF
20KW
VCC
VEE
C946
0.1uF
C944
0.1uF
C942
0.1uF
20KHZ
VR430
20KW
16KHZ
~IC405A 4558
*TVR808 200K
*R408 180
*R308 560K
*C408 0.039
500HZ
*R407 180
*R307 270K
*C407 0.068
*C315 0.15/16
~IC404B 4558
*TVR807 200K
*TVR815 200K
*R415 180
*R315 330K
*C415 0.0082
400HZ
~IC404A 4558
*TVR806 200K
*R406 180
*R306 330K
*C406 0.068
*R414 180
*R314 620K
*TVR814 200K
*C414 0.0082
320HZ
*C405 0.082
~IC403B 4558
*C313 0.22/16
*TVR805 200K
*R405 180
*R305 620K
*TVR813 200K
*R413 180
*R313 300K
*C413 0.015
VR429
20KW
12.5KHZ
VR428
20KW
10KHZ
~IC408B 4558
VR427
20KW
8KHZ
VR426
20KW
6.3KHZ
~IC408A 4558
VR425
20KW
5KHZ
VR424
20KW
4KHZ1.25KHZ
3.15KHZ
*R823 180
*C923 0.0068
*C823 0.022
*R923 180
2.5KHZ
*R822 180
*C926 0.0068
*C822 0.022
*R922 180
2KHZ
*R821 390K
*C921 0.0022
*C821 0.033
*R921 180
1.6KHZ
*R920 180
*R820 620K
*C820 0.033
C920 0.0022
+
VCC
D550
Q550
2SD882
R551
1K8
R550
68 1/2W
C550
+
VB+
20KHZ
*TVR823 200K
~IC412B 4558
*C931 0.0022
*C831 0.0033
16KHZ
*C830 0.0033
*TVR822 200K
~IC412A 4558
*C930 0.0022
12.5KHZ
*C929 0.0022
*C829 0.0056
*TVR821 200K
~IC411B 4558
10KHZ
*TVR820 200K
*C928 0.0022
*C828 0.0056
~IC411A 4558
C553
220uF/25V
+
VEE
D551
20V
20V
Q551
2SB772
R552
68 1/2W
R553
1K8
C551
10uF/50V
10uF/50V
+
VB-
*TVR831 200K
*R831 180
*R831 180
*TVR830 200K
*R930 120
*R830 120
~IC416A 4558
*R929 180
*TVR829 200K
*R829 180
~IC415B 4558
*R928 180
*R828 180
*TVR828 200K
~IC415A 4558
VR408
20KW
100HZ
VR407
20KW
80HZ
VR406
20KW
63HZ
VR405
20KW
50HZ
VR404
20KW
40HZ
VR403
20KW
35HZ
VR402
20KW
25HZ
VR401
20KW
20HZ
PHONIC CORPORATION
VR423
20KW
3.15KHZ
40HZ
*C304 1.5/16
*R304 620K
*C404 0.082
35HZ
*R303 240K
*C403 0.15
*C303 2.2/16
25HZ
*R302 560K
*C402 0.15
*C302 2.2/16
250HZ
*C312 0.22/16
~IC403A 4558
*TVR804 200K
*R404 180
*TVR812 200K
*R412 180
*R312 560K
*C412 0.015
200HZ
~IC402B 4558
*TVR803 200K
*R403 180
*R411 180
*R311 390K
*C411 0.022
*C311 0.33/16 *C314 0.15/16
*TVR811 200K
160HZ
~IC402A 4558
*TVR802 200K
*R402 180
*R410 180
*R310 680K
*C410 0.022
*C310 0.33/16
*TVR810 200K
VR422
20KW
~IC407A 4558
2.5KHZ
VR421
20KW
2KHZ
VR420
~IC406B 4558
~IC406A 4558
20KW
1.6KHZ
VR419
20KW
VR418
20KW
1.25KHZ
*C919 0.0039
*C819 0.056
*R819 300K
1KHZ
*R818 560K
*C918 0.0039
*C818 0.056
800HZ
*R817 390K
*C917 0.0056
*C817 0.082
8KHZ
*R919 180
*TVR819 200K
*R918 180
*TVR818 200K
*C927 0.0033
*C827 0.0082
~IC410B 4558
6.3KHZ
~IC410A 4558
~IC414B 4558
*TVR827 200K
*R927 180
*R827 180
~IC414A 4558
*TVR826 200K
*R926 150
5KHZ
~IC409B 4558
*R917 180
*TVR817 200K
*C925 0.0047
*C825 0.015
~IC413B 4558
*R925 180
*R825 180
*TVR825 200K
1KHZ
20HZ
*R301 270K
*C401 0.22
*C301 3.3/16
R8XX
C9XX
C8XX
125HZ
*TVR801 200K
*R401 220
R9XX
*C309 0.56
~IC401B 4558
C8XX
*TVR809 200K
*R409 180
*R309 300K
*C409 0.039
R9XX
R8XX
C9XX
VR417
20KW
800HZ
~IC405B 4558 ~IC407B 4558
VR416
20KW
630HZ
630HZ
*R816 680K
*C916 0.0056
*C816 0.082
R8XX
C9XX
C8XX
MQ 3300/3400/3600 SERVICE MANUAL
4KHZ
*C924 0.0047
*R916 180
R9XX
*C824 0.015
~IC409A 4558
*TVR816 200K
C9XX *C926 0.0033
C8XX *C826 0.0082
~IC413A 4558 ~IC416B 4558
*TVR824 200K
*R924 180
*R824 180
R9XX
R8XX *R826 150
Page 15
INPUT & OUTPUT SCHEMATICS
HPF
R125
10K
V-
R123
100K
R121
51K
R120
51K
Q105
R122
2SA1015
1M
Q104
2SA1015
R118
1M
R119
1M
0.022MF
+C112
+
C113
0.022MF
D103
1N4148
D102 1N4148
1 2
1 2
Q103
Q101
+
R111
V-
Q102
2SK246
C109
C104
0.1MF
+
22K
22PF
C135
-
2
IC102A
4558DY
10K
7
+
5
2SK246
2SK246
C108
R116
47K
C105
J101 INPUT
0.082MF
+C103
8 4
R106
123
-
R114
+
C106
0.1MF
V+
+
2K
R107
C102
0.1MF
V-
1K
R105
R103
+
47MF/16V
+
1
+
3
R108
IC101B
4558DY
-
6
22K
R102
C184
2200PF
1K
R101
CH-1 12/6dB
R129
10K
C116
0.022MF
+
V-
R124
100K
R127
100K
R126
51K
Q106
2SA1015
7
IC103B
V+
47MF/16V
6
330K
0.0082MF
R112
22K
1K
4558DY
+
-
5
6
+
C111
47MF/16V
+
VR101
C110
47MF/16V
Q121
2SK246
+
R115
47K
7
IC102B
4558DY
+
5
+
R113
820K
C107
0.0082MF
68K
R110
22K
R109
10K
1
C101
0.1MF
IC101A
4558DY
+
+
-
8 4
3
2
C185
2200PF
R104
22K
MQ 3300 INPUT & OUTPUT SCHEMATICS
20V
D507
R183
330
C131
0.1MF
+
47K
0.1MF
V+
V-
2SK246
R133
123
10K
4700PF
C182
V+
51K
R151
51K
1M
R146
0.022MF
+C123
Q115
2SK246 R150
R143
1.5K
C122
R138
10K
IC104A
4558DY3
84
3K
V-
R181
R156
330
+
C129
R152
12
+
47MF/16V
1
+
-
2
R131
3K
EQ
J102
CH-2 OUTPUT
R157
10K
330
4200PF
C181
47MF/16V
1M
Q117
2SA1015
1M
R145
D106
1N4148
Q116
2SK246
R144
1.5K
R139
10K
R134
100K
EQ A
EQ
220MF/25V
+C511
10K
R155
C508
220MF/25V
V+
0.022MF
+C128
R507
68 1/2W
R154
100K
R153
100K
V+
Q118
2SA1015
12
IC502 LM317
D503 1N4003
0.022MF
+C124
R140
Q112
2SA970
EQ B
3 2
V++
D501
1N4003
1 2
10K
VV-
+
18V
D505
Q501
MJE3055
R508
1.8K C506
100MF/35V
+
+C504
VCC
R503
100
R501
240
R502
GND
1
VI VO
+C502
R511
LED501
2.2K 1/2W
F1
T1A
1 2
T1
1 5
F2
T 500MA
1 2
+
SW1 POWER
220MF/25V
+C510
+C509
18V
D506
220MF/25V
R509
100MF/35V
+C507
+
C505
22MF/50V
22MF/50V
R506
100
R505
240
3.9K
R504
3.9K
1
IC502
470MF/50V
470MF/50V
+C503
V-
Q502
MJE2955
1.8K
R510
68 1/2W
VV-
32
VOVI
GND
D504
1N4003
1 2
LM337
V- -
POWER
BLUE
VLED
TRANSFORMER
4 8
C501 4700PF
P1
POWER CORD
12
D502
1N4003
Q120
V+
C115
0.022MF
+
R128
100K
V+
+C114
47MF/16V
R117
24K
20KW
LEVEL
1 2
V+
2SA970
RED
PEAK
R164
3.9K
LED101
R163
5.6K
2.2MF/50V
+C134
Q119
2SC1313
R161
5.6K
330
2.2MF/50V
R159
+C130
+
C132 0.1MF
V-
R147
22K
C136 47PF
V-
+
C126 0.1MF
R135
1M
1M
R136
0.022MF
+C121
+C120
0.022MF
D105 1N4148
D104 1N4148
1 2
VV+ R162 220
Q109
2SK246
Q107
2SK246
R182
R160
11K
100K
R158
47MF/16V
C133
+
1
IC105A
4558DY
+
-
8 4
3
2
C186
2200PF
R148
+
R149
C125
C127
1
+
IC103A
4558DY
+
-
8 4
3
2
22K
+
D107
1N4148
22MF/25V
12
Q114
2SK246
Q113
R142
1.5K
R141
1.5K
R137
10K
Q111
2SC1313
+C119
C118
560PF
Q110
+
2SK246
47MF/16V
R132
240
47MF/16V
+C117
Q108
2SK246
R130
240
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
Page 16
EQUALIZER SCHEMATIC
CH1 EQ A
CH1 EQ B
V-
R4XX
R6XX
C3XX
C6XX
MQ 3400 EQUALIZER SCHEMATIC
V-
V+
C755
0.1uF
C754
0.1uF
C753
CH2 EQ B
CH2 EQ A
VEE
1
4558
IC102A
+
-
8 4
3
2
R3XX
C4XX
C7XX
VCC
C453
0.1uF
V+
C452
0.1uF
C451
0.1uF
R7XX
C450
0.1uF
0.1uF
C752
0.1uF
C751
0.1uF
C750
0.1uF
VLED
VR315
20KW
16KHZ
630HZ
VR314
20KW
10KHZ
VR313
20KW
6.3KHZ
VR312
20KW
4KHZ
VR311
20KW
2.5KHZ
VR310
20KW
1.6KHZ
VR309
20KW
1KHZ
VR308
20KW
630HZ
VR307
20KW
400HZ
VR306
20KW
250HZ
VR305
20KW
160HZ
VR304
20KW
100HZ
VR303
20KW
400HZ
*C407 0.0022
*C307 0.15
250HZ
*C406 0.0039 *C408 0.0015
*C306 0.22 *C308 0.082
160HZ
*C405 0.0056
*C305 0.33
100HZ
*C404 0.01
*C304 0.56
63HZ
*C403 0.015
40HZ
*C302 1.5/16
*C402 0.022
16KHZ
*R415 470
*R315 140K
*C415 470P
*C315 0.0033
10KHZ
*R414 470
*R314 200K
*C414 470P
*C314 0.0056
~IC304A 4558 ~IC305A 4558
*R406 470 *R408 470
*R306 1M *R308 1.1M
6.3KHZ
~IC303B 4558 ~IC304B 4558
*R405 470 *R407 470
*R305 1.1M *R307 1M
*R413 470
*R313 200K
*C413 820P
*C313 0.0082
4KHZ
*R412 470
*R312 191K
*C412 0.0012
*C312 0.015
~IC303A 4558
*R404 470
*R304 953K
2.5KHZ
*R303 1.1M
~IC302B 4558
*R403 470
1.6KHZ
~IC302A 4558
*R402 470
*R302 1M
*R411 470
*R311 220K
*C411 0.0018
*C311 0.022
*R410 470
*R310 1.1M
*C410 560P
*C310 0.033
63HZ
VR302
20KW
40HZ
VR301
20KW
25HZ
25HZ
*C401 0.039
*C301 2.2/16
C3XX *C303 0.82
C4XX
1KHZ
*R409 470
*R309 953K
*C409 0.001
~IC301B 4558
*C309 0.056
*R401 470
*R301 1M
R4XX
R3XX
R4XX
R3XX
C4XX
C3XX
CH1
VR330
20KW
16KHZ
630HZ
VR329
20KW
10KHZ
VR328
20KW
6.3KHZ
~IC308B 4558
VR327
20KW
4KHZ
VR326
20KW
2.5KHZ
~IC308A 4558
VR325
20KW
1.6KHZ
VR324
20KW
1KHZ
~IC307B 4558
VR323
20KW
630HZ
VR322
20KW
~IC307A 4558
400HZ
VR321
20KW
250HZ
VR320
20KW
~IC306B 4558
160HZ
VR319
20KW
100HZ
~IC306A 4558
VR318
20KW
*C708 0.0015
~IC312B 4558
*R708 470
*R608 1.1M
*C608 0.082
400HZ
*C607 0.15
*C707 0.0022
250HZ
*C706 0.0039
*C606 0.22
160HZ
*C705 0.0056
*C605 0.33
100HZ
*C704 0.01
*C604 0.56
63HZ
*C703 0.015
*C603 0.82
40HZ
*C602 1.5/16
*C702 0.022
16KHZ
~IC312A 4558
*R607 1M
*R707 470
*R715 470
*R615 140K
*C715 470P
*C615 0.0033
10KHZ
*R714 470
*R614 200K
*C714 470P
*C614 0.0056
*R706 470
*R606 1M
~IC311B 4558
6.3KHZ
*R713 470
*R613 200K
*C713 820P
*C613 0.0082
~IC311A 4558
*R705 470
*R605 1.1M
4KHZ
~IC310B 4558
*R704 470
*R604 953K
2.5KHZ
~IC310A 4558
*R703 470
*R603 1.1M
1.6KHZ
~IC309B 4558
*R702 470
*R602 1M
*R712 470
*R612 191K
*C712 0.0012
*C612 0.015
*C711 0.0018
*C611 0.022
*R711 470
*R611 220K
*R710 470
*R610 1.1M
*C710 560P
*C610 0.033
63HZ
VR317
20KW
~IC305B 4558
40HZ
VR316
20KW
25HZ
25HZ
*C701 0.039
*C601 2.2/16
C7XX
C6XX
1KHZ
*R709 470
~IC309A 4558
*R701 470
*R601 1M
R7XX
R6XX
*R609 953K
*C709 0.001
*C609 0.056
R7XX
R6XX
C7XX
C6XX
CH2
RED
LED305
LED304
LED302
~IC316A 4558
LED301
~IC315B 4558
5 46
HPF
RED
12dB
GRN
6dB
RED
EQ
1 2 3
SW303
2-25W
CH1
5 46
1 2 3
SW302
2-25W
5 46
1 2 3
SW301
2-25W
~IC315A 4558
CH1 EQCH2 EQ
CH1 HPF
RED
LED309
~IC314B 4558
LED308
LED307
~IC314A 4558
LED306
~IC313B 4558
5 46
HPF
SW306
RED
12dB
GRN
6dB
RED
EQ
2-25W
5 46
SW305
2-25W
5 46
SW304
2-25W
CH1 12/6dB
1 2 3
CH2
1 2 3
1 2 3
~IC313A 4558
CH2 HPF
CH2 12/6dB
PHONIC CORPORATION
MQ 3300/3400/3600 SERVICE MANUAL
Page 17
CH 1 INPUT & OUTPUT SCHEMATICS
C187
0.1UF
CH-1 HPF
R125
10K
V-
R123
100K
R120
51K
R121
51K
Q105
2SA1015
R122
1M
Q104
2SA1015R105
R119
1M
R118
1M
0.022MF
+C112
+
C113
0.022MF
D103
1N4148
D102 1N4148
1 2
1 2
Q101
2SK246
+
C104
0.1MF
+
R111
22K
C135
-
V-
IC102A
4558DY
+
5
Q103
Q102
2SK246
2SK246
R116
47K
+
C109
47MF/16V
C105
0.082MF
+
+
1
0.1MF
+C103
22PF
+
8 4
V+
3
2
R108
22K
+
7
2KV-
R106
C102
0.1MF
IC101B
4558DY
-
6
8.2K
C184
2200PF
22K
R102
1K
2
3
R101
CH-1 12/6dB
R129
10K
0.022MF
+C116
V-
R124
100K
R126
51K
R127
100K
Q106
2SA1015
7
IC103B
V+
+
-
5
6
+
C111
47MF/16V
+
C110
47MF/16V
Q121
2SK246
+
R115
47K
C108
47MF/16V
7
IC102B
4558DY
+
-
5
6
R114
330K
+
C107
C106
R113
820K
0.0082MF
0.0082MF
R112
68K
R110
22K
R109
22K
1
IC101A
4558DY
C101
+
R107
22K
+
-
8 4
3
2
2200PF
C185
1K
R104
22K
R103
V+
C115
0.022MF
+
R128
100K
V+
+C114
4558DY
47MF/16V
R117
24K
VR101
20KW
LEVEL
R135
1 2
0.1MF
V+
MQ 3400CH 1 INPUT & OUTPUT SCHEMATICS
PEAK
20V
R164
PEAK
R160
11K
C133
47MF/16V
+
IC105A
4558DY
8 4
3
C186
R148
+
IC103A
4558DY
8 4
D107
12
R142
R137
10K
Q111
2SC2240
C118
560PF
+
47MF/16V
R132
820
R130
820
2200PF
3.9K
R182
R158
47K
C127
1N4148
Q114
47K
C131
0.1MF
+
0.1MF
V+
V-
2SK246
R133
D507
10K
R183
330
C182
4700PF
330
V+
51K
R151
R150
51K
1M
R146
0.022MF
+C123
Q115
2SK246
R143
R138
10K
IC104A
84
3K
123
330
R181
R156
330
+
C129
12
1.5K
+
C122
1
4558DY3
+
-
2
R131
3K
V-
CH-1 EQ
Jk102
CH-2 OUTPUT
220MF/25V
+C511
10K
R155
R157
10K
C508
220MF/25V
V+
0.022MF
C181
4700PF
47MF/16V
R152
1M
1M
R145
D106
1N4148
Q116
R144
47K
47MF/16V
R139
R134
+C128
R507
CH-1/2 EQ
R154
100K
R153
100K
V+
Q118
2SA1015
Q117
2SA1015
0.022MF
+C124
2SK246
10K
R140
10K
Q112
2SA970
100K
12
D503 1N4003
IC502 LM317
V++
D501
1N4003
VV-
CH-2 CKT
+
18V
D505
Q501
MJE3055
R508
1.8K
68 1/2W
C506
100MF/35V
+
+C504
VCC
R503
100
240
R501
R502
GND
1
VI VO
3 2
+C502
R511
LED501
2.2K 1/2W
1 2
F1
T1A
1 2
T1
1 5
F2
T 315MA
1 2
+
SW1A POWER
220MF/25V
+C510
+C509
18V
D509
220MF/25V
R509
100MF/35V
+C507
+
C505
22MF/50V
22MF/50V
R506
100
R505
240
R504
3.9K
3.9K
470MF/50V
1
IC502
LM337
470MF/50V
+C503
V-
Q502
MJE2955
R510
68 1/2W
1.8K
VV-
32
VOVI
GND
1 2
D504 1N4003
V- -
POWER
BLUE
VLED
TRANSFORMER
4 8
4700PF
SW1B POWER
C501
P1
POWER CORD
12
D502
1N4003
Q120
2SA970
RED
LED101
R163
5.6K
C134
2.2MF/50V
+
R161
5.6K
R162 220
Q119
2SC2240
2.2MF/50V
R159
100K
+C130
+
C132 0.1MF
1
+
-
V-
2
+
1
R147
22K
C136 47PF
+
-
V-
C126 0.1MF
1M
D104 1N4148
1 2
Q109
2SK246
Q107
2SK246
3
2
+
R149
22K
+
C125
22MF/25V
2SK246
Q113
R141
1.5K
1M
R136
0.022MF
+C121
+C120
0.022MF
D105 1N4148
VV+
+C119
Q110
2SK246
47MF/16V
+C117
Q108
2SK246
JK101
CH-1 INPUT 1
PHONIC CORPORATION
CH-1 EQ B
CH-1 EQ A
MQ 3300/3400/3600 SERVICE MANUAL
Page 18
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