Kenwood DMF-3020 Service Manual

AE AF AH AJ AL ANAG AI AK AM
Y22-7872-70
DMF-3020/3020(S)/5020/MD-203
4.8V
5.2V
5.2V
4.8V
5.2V
5.2V
5.2V
1.6V
0V4.8V
4.8V
1.6V
2.5V
2.5V
2.5V
2.4V
2.4V
0V
0V
0V
0V
0V
0V
-14.1V
13.9V
-14.1V
0V
0V
0V
0V
0V
13.9V
0V
13.9V
-14.1V
0.7V
MUTE ON:
0.7V
MUTE ON:
0.7V
MUTE ON:
15.2V
3.3V
13.9V
3.3V
-14.8V
14.6V
-14.1V
-15.6V
5.2V
6.2V
6.4V
6.2V
5.2V
5.3V
6.0V
REC: -36.7V
STANDBY: -38.4V
9.5V
0V 0V
0V
0V
0V
-32.3V
-32.9V
2.5V
5.2V
10.3V
4.9V
4.8V
5.6V
3.8V
3.3V
-15.6V
15.0V
5.0V
5.0V
0V
L: STANDBY
H: POWER ON
3
2
1
100P
R205
2
3
4
1
100K
C167 C153
C151
100P
C159
47u50
C163
+
100
R217820
R213
820
R209
6
5
8
7
0.01
C155
1K
R223
1500P
C157
820
R211
100
R225
1K
R227
200
R229
100
R221
470P R219
C161
C156
100P
C160
C154
C152
100P
6
7
5
200
R226
R218
100
+
R222
C164
47u50
100
R230
200
8
820
R214R210
820
4
2
3
1
R206
R212
820
C158
1500P
R224
1K
R228
1K
R220
100K
C162
470P C166
IC13,14
Q17-20
3
4
2
1
1
2
VDD
GND
OUT
GND
VDD
OUT
C150
C149
3
2
1
16V 16V
+16V
16V
+16V +16V
R241
R202
R201
R242
R25
1.62K
+
C38
10u35
100P
GND
1
AC
VL VL
DIG DIG
ANA ANA
AC
54329876
5
4
10u50
0.01
C35
4.7
1/4W
2.2K
+
100u50
C36
R27
R24
+
10u35
C179
150
R23
100P
C169
C39
+
IN
100
R253
3300u16
C43
GND
1.5K
R26
OUT
C41
+
+
4.7K
R14
R31
6800u16
0.01
C16
C22
+12V
R271
1 1/4W
+5V
100u10
22u16
C25
C23
+
0.01
+
C28
470u10
100K
R13
+
R9
C17
C15
+12V
+
C20
680
R10
0.01
C18
330
R8
47u16
+
C21
100P 1K0.01
C24
680
R11C27
1u50
C29
+
0.01
+6V
C26
R12
750
+5V
GND
OUT
IN
8
C2 C3
1000u25
220u25
+
C4
1000u25
IC3
+
+
2
3
100u10
0.01
C10
10u35
C8
100P
4
220
R243
7
C9
+
C11
1K
R5
6
5
0.01
R260
10K
R3
10K
C1
16V
0.01
C6
100P
C5
0.01
C7
R1
10
1
R4
1/4W
+16V
+
100u10
0.01
C31
1K
43
62
1u50
47K
R28
C30
+
C32
+
1F5.5
C33
100K
R16
R15
R18
1K
+5V
100
R19
10K
R17
46
100P
C12
10
Q5
10K
R6
C181
47u25
100
+
47u25
C178
+
100
+16V
16V
+16V
16V
1K
1K
+16V
16V
16V
1.8K
+5V
+5V
0.01
0.01
31V
100P 100P
100P 100P
100
R252
2
7
14
1
R249 15
R261 15
0.01
C83
R262 15
12 1310 1198 100
R153
0.1
C79
R146
C80
R152
10P
C88
100
R151
100
R141
100K
10K
22P
22P C85
75
R144
43
56
0.1
C78
270
R143
75
R142
15
R140
22P C77
R154 10K
C86 10P
220
R155
1000P
C87
220
R139
0.1
C75
6
5
8
4
7
100P
C136 470P C140
2.2u50
C138
+
1K
R186
1K
R192
100K
R188
22K
R190
5.1K
R216
2.2K
100P
C190
C134 100P
33u16
C132
+
R181 2.2K
C133 100P
100P
C189
5.1K
R215
C131
+
33u16
100P
C135
22K
R189
R187
100K
470P
C139
1K
R185
+
C137
2.2u50
R191
1K
2
3
8
1
3
2
8
1
R197 330
C184 100P
C143
100P
C125 100P
R195 7.5K
10u35
C141
+
75
R199
R198 330
C183 100P
C144
100P
C126 100P
R196 7.5K
75
R200
7
5
6
4
10u35
C142
+
14
13
12
11
10
9
8
VCC
3A
3B
3Y
4A
4B
4Y
1
2
3
4
5
6
7
1A
1B
1Y
2A
2B
2Y
GND
DATA
BUSY
SGND
GND
330
R137
100K
R138
330
R136
R135
100K
100K
R134
100K
R133
220P
C74
220P
C73
C180
0.01
470P
C72
4.7
R247
R248
4.7
470P
C71
VR1
1
2
3
4
5
6
7
8
L
R
RFIX
RVAL
GND
GND
LVAL
LFIX
1
2
3
4
5
6
7
8
C165
R182
R150
1.8K
1800P
C177
3.3K
R148
+5V
10K
R149
11
14
15
IC1,2
Q21,22
Q10
1
2
(K,P)
(J)
(T,E)
: AC120V 60Hz
: AC100V~
50/60Hz
: AC230V~ 50Hz
C14
6800P
1
2
3
4
5
6
7
8
9
GND
ANA
ANA
AC
AC
VL
VL
DIG
DIG
F1
+16V
+16V
+16V+16V
+16V
+16V
+16V
16V16V16V
16V
+3.3V+3.3V+3.3V
+3.3V+3.3V+3.3V+3.3V
+3.3V
+5V
+5V +5V+5V
+5V+5V
+5V
+5V
+5V
+5V
+5V
+5V +5V+5V
+5V
+5V
+5V+5V
+5V
+5V
+5V
+3.3V
4,5
B
+B
EUROPE
U.K.
E
T1
NO 150P
DESTINATION
COUNTRY ABB.
C149,
150
A
IC8
PCM3002E
154
0.027
C153,
181
NO
C178,
186
YES
C185, D35,
YES NO
D42
125V
F1
1.25A
T800mA
L 250V
47K
R79
22K
R80
178
YES
R168,169,
204
12K
R203, R205,
206
39K
221,223
W61,76,136,154,
YES
148,155,189
NO
W108,111,128,147,
F1
T800mA
L 250V
150
COUNTRY ABB.
U.K.
EUROPE E2
T2
YES 220P
DESTINATION
A
C149,
181 186154
NO0.015 YES NO YES
C178,C153, C185, W108,111,128,147,
148,155,189
R203,
169
22KPCM3003E NO47K
R79IC8
R168,
R80
221,223
206204
13K6.8K NO YES
W61,76,136,154,R205,
36
36
D35,
D42
31V 31V
31V 31V
+16V+16V
NO
UNIT No.
0-11
UNIT No.
2-71
JAPAN J 0-00
47u16
C82
+
0.01
C121
10K
R255
R256
10K
C123
100P
100P
C84
C124
0.01
CN10CN11
16V 16V
4.7
R29
1/4W
R234 33
1/4W
1/4W
R236 33
1/4W
R251 33
10K
R7
1.25A
P1
K1
CANADA
U.S.A.
NO0-11 150P 0.027 NO YES YES NO PCM3002E
125V
22K47K
C149,
A
UNIT No.
ABB.COUNTRY
DESTINATION
D42
150 154 181 186 36
C153, C178, C185, D35,
IC8 R79 R80F1
39K12K YES NO
206204
221,223
R205,R203, W61,76,136,154,
148,155,189
W108,111,128,147,
E1EUROPE NO0-11 150P 0.027 NO YES YES NO
T800mA
L 250V
PCM3002E 22K YES47K
C149,
A
UNIT No.
ABB.COUNTRY
DESTINATION
D42
150 154 181 186 36
C153, C178, C185, D35,
IC8 R79 R80F1
169
R168,
39K12K YES NO
206204
221,223
R205,R203, W61,76,136,154,
148,155,189
W108,111,128,147,
0-00
POWER TRANSFORMER
0-11
2-71
: L07-2620- 5
: L07-2618- 5
: L07-2619- 5
C13
100P
0.1
C174
J4
E11-0190-05
E11-0127-05
J4
E11-0127-05
J4
E11-0127-05
J4
B
B
YES
B
YES
NO
B
220
R163
120YES
R178
NO
YES
R163
120
R163
120
R178R163
220 NO
R168,169,
178
YES
(2/2)
IC13
(1/2)
IC13
Q17 Q19
(1/2)
IC14
IC14
(2/2)
Q18 Q20
Q16
59KHz LPF
MUTE
J1
Lch
Rch
Rch
Lch
INPUT
OUTPUT
J2
COAX
COAX
OPT.
OPT.
DIGITAL INPUTDIGITAL OUTPUT
A1
A2
CN1
D20 D19
D21
Q13
31V AVR
Q40
Q12
D12
Q11
D13
DIGITAL +5V
CONTROL
5V AVR
Q4
D17
5V AVR
D11
D10
D9
D8
D15
Q7
D14
(1/2)
STABILIZATION
ANALOG +5V
IC3
(2/2)
RESET IC
D33
3.3V AVR
Q1
D1
D6
IC3
D34
Q2
Q10
Q9
Q8
SRAM
BACKUP
Q6 Q5
POWER ON/STANDBY
Q3
CONTROLLER
D28
D27
D32
D31
Q21
Q22
IC21
(1/6)
(6/6)
IC21
(5/6)
IC21
IC21
(4/6)
IC21(2/6)
IC21(3/6)
(2/2)
IC10
(1/2)
IC10
(1/2)
IC11
IC11
(2/2)
(BOTTOM VIEW)
P2
SYSTEM
CONTROL
D22
D23
D26
HEADPHONES
J4
P1
E2 E3
Q32
IC PROTECT
LIMMIETER
RESET
INVERTER
DIGITAL REC SEL
(OPT/COAX)
PHONES AMP
CN6
S20
MAIN
POWER
E1
WH1
IC1,2,6 : ICP-N10
IC3 : NJM4558D
IC4 : PST993D-T
IC5 : TL431CLP
IC10,13,14 : NJM4565D
IC11 : NJM4580D
IC21,22 : TC74HCU04AF
IC26 : TC74HC00AF
IC31 : UPD784215GF532
IC33 : TC74HC373AF
IC34 : W24258S-70LE
IC35 : TA8409S
IC36,38 : TC74HCT7007AF
IC37 : HD74HCT126FPEL
IC39 : TC74VHC244F
IC40 : KAN06
IC41 : PCM1716E
Q1,7,11 : 2SD2061 or
2SD2012
Q2 : 2SK246(GR)
Q3,12 : UN5219 or
Q4,22 : 2SA992(F,E)
Q5,6,16,25,27,28,39
: UN5212 or
Q8,24 : 2SA1576A(R,S) or
2SB1218A(Q,R)
Q9,10,23,33-37 : 2SC4081(R,S) or
2SD1819A(Q,R)
Q13 : 2SA954(L,K)
Q14,15 : 2SD1302(S,T)
Q17-20 : 2SD1450(S,T)
Q21 : 2SC1845(F,E)
Q26,30,32 : UN5112 or
Q31 : UN5216 or
DTC143TUA
Q40 : 2SK163(L)
D1,11 : D3SBA20F03
D3-5,31,32 : U1BC44
D6,8,12,17,22-24,29,34-36,38,
42,45 : MA111
D9,10,21 : S5688B(TPB5)
D13 : UDZ5.6B
D14,15 : MA113
D19,27,28 : UDZ18B
D20 : UDZ15B
D26,30,43,44 : DA204U
D33 : UDZ3.3B
DIGITAL LINE
GND LINE
SIGNAL LINE
B LINE
B LINE
DMF-3020 (X25-618X-XX)
DMF-5020 (X25-6182-71)
IC8 :
-CN4
X25-D/5
3/3
W02-1114-05A2 :
A1 W02-1181-05:
WH2
MUTE
CONTROL
J3
D42
MD-203 (X25-6180-11)
DMF-3020(S) (X25-6180-11)
D45
REC LEVEL
D41 UDZ7.5B:
DTC113ZUA
DTC124EUA
DTA124EUA
DMF-5020/3020/3020S/MD-203 (2/3)
IC5
IC4
IC2
IC1
IC26
(X25- ) (B/5)
(X25- ) (E/5)
C
CAUTION: For continued safety, replace safety critical components only with manufacturer's recom-
mended parts (refer to parts list). indicates safety critical components. For continued protection
against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric shock,
leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulat-
ed from the supply circuit) before the appliance is returned to the customer.
The DC voltage is an actual reading measured with a high impedance type
voltmeter. The measurement value may vary depending on the measuring
instruments used or on the product. Refer to the voltage during RECORD-
ABLE MD PLAY unless otherwise specified; The value shown in ( ) is the
voltage measured at the moment of STOP. The voltage followed by (REC)
refers to the value during MD RECORDING.
TC74ACT540FS
TC7WU04FU
1
4
5
8
PCM1716E
L88MS33T
1
5
HD74HCT126FPEL
1
7
8
14
sd2p 98.12.9 16:52 y[W 1
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9/8/2013
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Kenwood DMF-3020 Specifications