Kenwood VR-410 Service manual
70%
AUDIO VIDEO SURROUND RECEIVER
A SPEAKERS B
STANDBY
MULTI CONTROL
LISTEN MODE
SOUND
SOURCE DIRECT
AUTOBAND MEMORY
INPUT SELECTOR
VOLUME CONTROL
UPDOWN
PROLOGIC 3 STEREO CS 5.1
DOLBY
DIGITAL
DTS
INPUT MODESET UP
S-VIDEO VIDEO L — AUDIO — R
AV AUX
DIMMER MONITOR
PHONES
ON/STANDBY
POWER
OPTICAL
DVD
CD/DVD
VIDEO 3
VIDEO
VIDEO 2
COAXIAL
OPTICAL
DIGITAL IN
S-VIDEO
DVD
VIDEO 1
VIDEO 1
VIDEO 2 VIDEO 3 MONITOR
PLAY IN
REC OUT PLAY IN
PLAY IN
PLAY IN
REC OUT
VIDEO 1 VIDEO 2 VIDEO 3
PLAY IN PLAY IN PLAY INREC OUT
SYSTEM CONTROL
—
+
FRONT SPEAKERS
(8 — 16‰)
CENTER SPEAKERS
(8 — 16‰)
SUB WOOFER PRE OUT
—++
—
FRONT SPEAKERS
SURROUND SPEAKERS
AC OUTLET
(8 — 16‰)
(8 — 16‰)
RED
BLUE GREEN
FM
75‰
GND
AM
MONITOR
PLAY IN
PLAY IN
REC OUT
AUDIO
L
R
MD/TAPE1
CD/DVD
PHONO
GND
REC OUT
FRONT
L
CENTER
SURROUND
SUB WOOFER
DVD/6ch INPUT
R
FRONT
SUB
WOOFER
CENTER
SURROUND
MONITOR
DIGITAL OUT
OPTICAL
ANTENNA
RF REMOTE
IR REPEATER
OUT
VR-410
SERVICE MANUAL
© 2000-5/B51-5617-00 (K/K) 1380
Phone jack
(E11-0272-05)
Pin jack
(E63-1139-05)
Front glass
(B10-3542-12)
Optical receiving module
(W02-2716-05)
Cylindrical
receptacle(3P)
(E56-0011-05)x2
Indicator
(B12-0383-04)
Knob
(K29-7681-14)
Miniature phone jack(2P)
(E11-0293-05)
Oscillating module
(W02-2717-05)
Pin jack
(E63-1142-05)
Knob
(K29-7675-22)
Miniature phone jack
(E11-0904-05)
Miniature phone jack
(E11-0291-05)
Knob
(K29-7678-04)
Knob
(K29-7681-14)
Cylindrical receptacle
(E06-0709-05)
Metallic cabinet
(A01-3731-01)
Panel
(A60-1742-02)
Pin jack
(E63-1035-05)
AC power cord bushing
(J42-0083-05)
AC power cord
(E30-2941-05)
Lock terminal board
(E70-0052-05)
Please refer to VR-407/409 service manual (B51-5598-00) on circuit description.
Pin jack
(E63-1143-05)
Pin jack
(E63-1080-05)
Pin jack
(E63-1143-05)
Pin jack
(E63-1144-05)
Pin jack
(E63-1145-05)
Screw terminal board
(E70-0049-05)
Lock terminal board
(E70-0065-05)
AC outlet
(E03-0148-05)
Resetting the Microcomputer
If the microcomputer may malfunction (unit cannot be operated,
or shows an erroneous display) if the power cord is unplugged
while the power is ON, or due to some other external factor. If this
happens, execute the following procedure to reset the microcomputer and return the unit to its normal operating condition.
Unplug the power cord from the wall outlet, then plug it
back in while holding down the POWER key.
•Please note that resetting the microcomputer will clear the contents
of the memory and returns the unit to the state it was in when it left the
factory.
FM
(T90-0836-05)
indoor antenna (1)
AM
(T90-0852-05)
loop antenna (1)
Remote
Battery cover(A09-1166-08)
(A70-1314-05): RC-R0810
control unit (1)
Batteries (R6/AA) (4)
RF
(T90-0850-05)
remote antenna (1)
VR-410
CONTENTS / ACCESSORIES / CAUTIONS
Contents
CONTENTS / ACCESSORIES / CAUTIONS............. 2
ADJUSTMENT............................................................3
PC BOARD ................................................................ 4
SCHEMATIC DIAGRAM............................................ 9
Accessories
EXPLODED VIEW ....................................................27
PARTS LIST..............................................................28
SPECIFICATIONS ......................................Back cover
Cautions
2
ADJUSTMENT
No.
ITEM INPUT SETTINGS
OUTPUT
SETTINGS
RECEIVER
SETTINGS
ALIGNMENT
POINTS
ALIGN FOR
FIG.
1
98.0MHz 1kHz,
±75kHz dev.
70dBf (ANT. input)
98.0MHz
2 TUNING LEVEL
98.0MHz MONO 1kHz,
±75kHz dev.
29.2dBf (ANT. input)
MONO
98.0MHz
VR1
(X07)
Adjust VR1 and
stop at the point
where ED1
(TUNED) goes on.
DISCRIMINATOR
Connect a DC
voltmeter
between CN4
1 and CN4 2
(X07)
L4
(X07)
0V
FM SECTION : SELECTOR : FM
(K,P only)
VR-410
3
A BDCE
Q202
Q201
D201
Q211
Q210
IC203
D207
D216
D213
D211
Q209
Q208
Q212
Q206
Q203
Q204
Q214
Q215
Q207
IC601
AM STEREO
R75
C84
C9
C92
C93
C88
R89
R90
C91
C89
C90
C35
C83
C87
W660/R32
W653
R29
C8
C58
C56
C57
C61
C60
C36
R43
R48
R66
R63
R62
R69
R67
R68
R18
R19
R34
R33
R20
C69
C63
W685
C4
W659
W681
W686
C81
C5
R84
C6
C1
C2
C3
C82
C78
C75
C11
C12
C39
C25
C26
C24
C42
C41
C40
C30
C22
C52
C45
C47
C50
C51
C18
C20
C43
C44
R55
R79
R56
R53
R54
R57
R51
R52
R49
R42
R80
R82
R11
R14
W656
R12
R15
R16
R17
R10
R4
R1
R5
R8
R9
R6
R7
R35
R39
R38
R23
R28
R25
R76
W683
R74
R78
R47
W684
R45
R46
W661
R27
C31
C76
C79
W651
R31
R36
W655
R83
C77
W662
R64
R65
R60
R59
R58
W652
R30
C80
R72
C71
R73
C70
C34
C33
W682
C64
R37
W680
W654
R88
R85
C86
C85
R86
R87
C74
C606
C13
EB
EB
EB
BE
EB
EB
EB
EB
EB
EB
EB
E
B
EB
IGO
18
16 9
E1
FM DET MPX
for u-COM
+5.4V AVR
CN5
D206
A1
IC201
D204
D203
D209
IC202
CN4
J8
IC602
WH60
D604
CN67 CN68
CN66
CN69
D605
D603
D602
Q601
D608CN62 CN63
CN61
CN64
X07-3120-10 C/3 (J70-1362-41)
CN65
J61
S1
AC OUTLET
X07 B/3
ANTENNA
CH.SPACE
DE EMPHASIS
ON
OFF
7.2MHz
3.6MHz
W133
W177
W127
W160
W159
W202
W110
W105
W121
W134
W140
W111
W113
W120
W106
W175
W193
W197
W181
W147
W170
W131
W89
W103
W63
15
W75
W23
W64
(W)
AM RF
(G)
T.METER
MPX.FIL.
FM
TUNED
FM IF
PLL
VT
125V
PRIMARY
F1 8A
F2
L
C17
C28
C38
C29
C37
VR1
CF1
CF2
C10
CF3
L2
R50
R44
R71
C49
C46
C72
C32
C14
C15
C67
C68
C55
L3
C62
C66
C65
L1
C73
C7
R81
C27
C16
C19
C21
C23
L6
L7
L5
C48
R41
L4
R70
R40
R77
R61
C54
C59
C53
R2
W250
C604
R604
K601
R610
R605
R606
D601
R601
T1
C602
C603
R609
R3
C605
R603
R602
W251
AC SW
T2.5A
250V
P61
C601
X2
Vref
X1
OGI
E
2121
12 3
111
2212
115
16 30
1
8
12
115
B
PC BOARD (Component side view
1
2
3
4
)
5
6
7
4
Refer to the schematic diagram for the value of resistors and capacitors.
FHJLNGIKMO
PHONO EQ.
1
W324
W523
W311
R279
C245
W301
R132
R131
R129
R130
R136
R137
R135
R133
R134
R128
R120
R121
R119
R117
R118
R122
R126
R127
R125
R123
R124
R146
R145
R144
R149
R148
R147
R140
R139
R138
R141
R142
R143
R150
R151
R152
C120C121
C123
C125
W336
C127
C129
C131
C133
C135
C124C126 C119C130
C132
C134
C136
C128
R153
C140
C122
C139
C102
C101
R102
C106
R103
R101
R104
C105
R105
R106
R154
R155
C143
R156
C144
R339
R280
R395
C248
R179
C109
C110
R350
R389
R387
R388
R390
R320
R247
R248
W108
R246
R245
C188 C187
R205
R340
R206
C159
C160
W319
R188
R202
R201
R204
R203
C249C250
R174
R180
W329
W320
R173
R375
R341
R328
R234
R262
R225
R209
R210
W330
R224
R233
W302
C186
R278
R220
W312
R219
R256
R250
C168 C170
C169
C167
C203 C204 C224C218
R241
R239
R240
R242
R197
R198
R266
R276
R277
R265 R196
R195
C173 C174
R164
W514
W513
R162
R161
R163
R332
C163
W506
R329
R334
R333
C157
C164
R187
R177
C162
R178
C265
R222
C158
R175
R186
R176
C152
R185
R244
W305
C161
R270
W306
R327
R223
R221
C185
R159
R243
R200
R325
R199
R268
R324
R257
R302
R249
C191
C192
R301
C213
C210
W313
C211
R267
C267
C228
W333
R378
C227
R377
R307
C197
C198
C195
C196
C216C215
R308
W307
W343
R281
W322
R367
R170
R169
R315
R370
R365
R366
R368
R369
W303
W328
C147
R361
R362
R371
R373
R372
R352
R353
R269
R351
R363
R336
R335
W331
W332
W323
R331
R330
W327
R167
W326
C151
R384
R326
C247
R337
W317
W318
R168
R166
C148
R165
R356
R171
R172
C222
R273
R253
C205
R252
C207
W340
R272
R271
C220
R251
R360
R254
R274
R284
W310
W342
C180
R216
R215
C175
R213
C179
C230C229
R214
R212
C176
R211
R358
R217
R218
R357
W325
W309
R323
W321
W308
R314
R313
W316 W315
W341
W304
R394
R392
R391
R393
C268
R285
W338
W334
W339
W337
W335
R283
R310
R309
C266
R287
EB
BE
BE
EB
EB
EB
BE
EB
EB
EB
EB
EB
EB
E
B
EB
EB
EB
EB
EB
EBE
B
EB
BE
BE
EB
EB
EB
EB
EB
EB
E
B
14
2815
14
85
14
58
14
58
58
14
41
85
114
15 28
14
85
IC105
IC108
IC107
Q140
Q115
D130
Q113
Q116
Q139
D127
D106
Q132
Q114
IC110
IC106
Q5
Q6
D117
Q12
Q11
D122
D124
D115
D113
D114
IC109
D112
D111
D118
Q117
D128
Q142
D129
Q141
Q16
D1
Q52
Q112
Q53
Q111
Q51
Q121
Q118
D121
IC112
Q4
IC111
D108
D109
D110
Q135
Q136
Q9
Q10
Q3
Q15
Q119
Q120
D120
D190
D107
L1
C43
C36
C20
R3
R1
R2
C1
R36
R43
R39
C34
C33
R40
R42
R41
C35
C41
C42
R54
R52
R49
C40
R48
C39
R45
R47
C18
C31
C32
R29
C28
R28
R27
R31
R35
R37
R34
R32
C37
C38
R21
R51
R44
R46
R53
R33
C30
R30
C29
EB
CF1
E
B
BEB
E
B
E
B
E
E
B
B
E
E
B
14
58
D1 D2
Q10
Q11
Q12
Q8
Q9
D4
Q6
Q7
Q4
Q5
C3
C11
C1
C2
R7
R3
R10
R6
R8
R5
R4
R9
R11
R12
EB
EB
EB
EB
Q2
Q4
D1
Q1
Q3
RED
BRN
YEL
YEL
WHT
RED
BRN
WHT
R259
R184
R183
C251
R312
R182
W174
W189
W164
W109
W86
W66
W61
W112
W84
W180
W3
W81
W7
W152
W192
W211
W187
W196
W167
W179
W168
W212
W132
W185
W150
W9
W119
W155
W130
W125
W154
W136
W19
W161
W158
W129
W101
W94
W183
W151
W33
W117
W76
W30
W184
W215
L8
W80
W56
W43
W45
W44
W35
W34
W18
W28
W46
W182
W172
W88
W118
W72
W32
W71
W60
W58
W57
W53
W29
W67
W40
W42
W74
W41
W21
W11
W12
W128
W82
W54
W173
W73
W90
W79
W78
W102
W156
W107
W17
W31
W157
W27
W37
W39
W77
W48
W5
W1
W15
W213
W139
W153
W137
W10
W6
W24
W36
W209
W203
W204
W206
W49
W50
W122
W38
W14
W16
W8
W176
W195
W52
W210
W65
W91
W93
W142
W146
W169
W145
W141
W138
W166
W115
W126
W135
W114
W87
W85
W83
W162
W68
W69
W70
W165
W171
W178
W124
W123
C239
C200
C240
C202
R319
K4
W199
C142
C145
C146
C141
C108
C103
C107
C104
C115
C116
R157
R160
K3
R158
C241
R381
R345
C114
C113
C242
C244
C243
C246
C111
C112
R113
R112
R114
R111
R108
R107
R110
R109
C137
C138
R382
C238
R207
C172
W25
R116
R115
R228
R230
R385
R229
R399
R260
R386
R383
R227
W188
R311
C252
C117
C118
K1
R322
C259
C237
W22
R235
L102
R318
R317
R181
R316
L101
C166
C153
C253 C254
W92
W55
W96
C225
C226
R232
R231
C193
.
C183
R258
C194
C184
R379
R355
R261
C209
C214
C154
C212
C189
R189
R190
R346
W104
C171
C217
W47
C264
W116
W51
C165
C155
C156
C262
R303
R304
R364
R347
R342
C257
C258
C235
R354
R306
R305
R374
C236
W194
W207
W95
W4
W2
R286
R338
K2
R263
R236
C201 C199
IC103
R348
R343
W149
W198
C190
R226
R282
C417
C415
R380
C263
W97
C261
R321
C416
W59
R349
W218 C255
C149
C150
R359
R397
C206
C221
W148
C177
C178
R398
W205
C260
C181
C182
C208
C223
R376
R193
R194
R275
R237
R238
R264
W191
W217
R208
C256
W200
W201
W13
C270
W208
W144
W62
W26
W190
W216
W20
W163
R344
L103
L105
L104
C233
R191
R192
W143
R255
C234
C231
C232
C269
1
8
1
5
IGO
GIO
6
5
2
1
1
2
5
6
2
123
22
1
2
33
32
115
EB
EB
BE
EB
EB
BE
BE
BE
EB
EB
EB
EB
BE
EB
21
22 1
118
Q54
Q138
(WH1)
(WH1)
Q137
CN7
J1
D103
D101
D126
D125
Q134
D105
Q2
WH2
CN2
WH4
WH5
WH3
Q1
D104
D102
Q17
D123
Q122
Q123
IC104
Q14
Q13
Q8
Q7
WH4
WH5
WH3
WH2
CN1
J6
J5
J4
J3
CN3
E2
E3
CN6
Q133
J7
PRE OUT
AUDIO
SURROUND
WOOFER
SUB
FRONT
PLAY IN
VIDEO3
PLAY IN
VIDEO2
PLAY IN REC OUT PLAY IN REC OUT
VIDEO1 VIDEO2/MONITOR MD/TAPE
REC OUTPLAY IN CD/DVD PHONO
X14 F/6
WH5
POWER
S19
J2
X07-3120-10 A/3 (J70-1362-41)
FRONT
SPEAKERS
LR
CENTER
SPEAKER
LR
FRONT
SPEAKERS
IC101
IC102
R1
R2
FFC BLUE
C8
C5
C7
C6
C12
C10
W2
W1
W3
C9
W5
W4
W9
L1
C13
W6
W8
W7
O
IG
7
7
1
26
1
31
J1
P1
CN2
REPEATER
OUT
ANTENNA
RF
REMOTE
CN3
IC1
CN1
X13-7790-10 (J70-1451-11)
L4
C10
C2
C6
C5
C7
R10
R11
R13
R15
R16
C14
C15
C11
C13
C12
C8
L3
R18
C16
R25
R23
R24
R22
R12
L2
C9
C23
C22
C25
C24
C21
C19
R19
R17
X1
R14
C27
R26
C26
R20
E
B
C17
1
7
1
4
5
8
1
8
9
16
13
4
6
D3
IC1
IC2
Q3
IC3
CN1
X05-5150-10 (J70-1391-22)
J1
PC BOARD(Component side view
1
2
3
4
5
)
6
7
Refer to the schematic diagram for the value of resistors and capacitors.
5 6
P QSUWYRTVX
R152
R153
R154
R155
R158
R157
R156
R151
C102
C103
C101
C104
C105
R49
R48
R46
R47
R53
R50
R51
R40
R41
R39
R38
R44
R45
R43
R42
R64
R61
R62
R65
R57
R52
R54
R59
R63
R58
R121
R120
R119
R109
R108
R110
R113
R112
R111
R125
R124
R122
R123
R126
R98
C13
R118
R128
C12
C18
R66
C15
C16
C2
C10
C17
C31
C22
C25
C21
C20
C28
C29
C26
C27
R29
R34
R36
R37
R31
R30
R33
R32
R8
R5
R4
R7
R12
R13 R15
R14
C52
R70
R130
R83
C33
C57
C116
C7
C108
C34
C35
R107
R501
R502
R143
R162
R127
C14
C11
R129
C39
R60
R161
C46
C61
C19
W514
W507
W509
C44
W503
C47
R142
C41
R55
W505
C42
R141
C60
C45
R114
C55
C43
C109
C110
R71
R72
R69
C48
C56
C53 C50
C36
C37
C58
C115
C113
C114
C112
C111
C59
C9
18
916
100
1
25
26
50
51
75
76
OG
I
G
OI
EB
BE
BE
BE
BE
EB
EB EB
BE BE BE
EB
EB
EB
C106
C107
C655
R653
C713
C711
C712
R715
R711
R716
R714
R660
C660
R656
C671
C667
R659
C668
R661
C661
C659
R655
C656
R654
R505
C451
C411
C412
C401
R454
R452
R450
C459
C460
R428
IO
R403
R401
R405
R427
G
C505
C652
R652
C657
C653
C651
R651
R666
C670
R664
C669
R663
R665
C664
R658
C663
R657
C665
C601
C751
C752
C753
R527
R523
R514
R406
C402
R407
R402
R528
R522
R613
C507
C506
R524
R521
R404
C510
C610
R610
R612
C607
C609
R607
R609
R601
R605
C151
R66
C603
C605
R603
R611
R152
C183
R633
B
G
C453
I
O
C450
R631
R635
C621
C454
E
R20
C174
R451
C172
C175
C173
R308
R302
R306
C308
C153 C154
C163
C166
C164
C165
C171
R166
C152
R151
C151
R174
R175
C184
R165
R168
R172
R173
R169
C141
C253
R9
C56
C23
R58
C57
R7
C6
C5 R11
R12
C7
R8
R10
C42
C8
R35
C36
C55
C54
B
E
R37
C37
R33
R41
C41
C43
C35
C307
C206
C205
C306
C305
R307
R208
R207
R206
C301
C208
R304
C303
C204
R305
R303
C108
R204
C203
C202
C201
C104
R203
C207
R205
R108
L32
C31
R32
C34
C102
C101
L31
C103
R105
R103
R104
R106
C106
C105
C107
R31
R107
C33
C255
R262 R261
C256
R217
R215
R218
R216
C125
R253
C254
R258R257
C126
C251
R254
C252
Q1
Q2
Q9
Q8
Q4
Q6
Q7
Q5
Q3
Q11
Q10
D12
D16
D15
IC4
D35
D34
IC6
D36
IC3
Q12
Q14
D11
Q13
IC1
D41
IC47
D75
D76
D51
D52
D6
Q61
IC45
D61
D42
Q1
D3
S6
S4
S5
S8
S11
S12
S9
S10
S13
S16
S15
S17
S7
S14
E7
A1
IC2
D7
D4
D5
D6
D3
D2
D1
WH1
X14 E/6
WH4
X14 C/6
X14-7090-10 A/6 (J70-1364-31)
X14 B/6
WH1
E8
WH7
WH2
J3
J2
CN1
WH6
D8
S18
WH3
S2
S3
D9
E2
E1
D30
D29
D28
D27
D26
D25
D22
D18
D21
D13/W33
D20
D17
D19
E6
D24/W36
IC5
CN2
S1
CN5
D23
D33
R
L
V
AUDIO
S-VIDEO
X14 D/6
PHONES
CN3
J1
E5
DIGITAL
OUT
MONITOR
VIDEO2
PLAY IN
Q71
Q72
D71
REPEATER
OUTPUT
J71
CN71
Q76
CN72
Q77
X08 C/3
E6
WH6
X08 B/3
VIDEO3
PLAY IN
MONITOR
OUT
J66
CN5
IC46
IC43
IC44
IC41
E2
IC66
IC67
IC68
VIDEO1
PLAY IN
S-VIDEO
REC OUT
J65
DVD
IC62
CN2
J75
IC42
IC61
IC51
J61
SYSTEM
CONTROL
VIDEO
IC31
Q41
Q42
Q62
D43
E7
WH6
D44
D62
IC1
E1
CN1
IC15
CN3
D151
Q15
Q16
D152
DVD/6CH.INPUT
IC2
D1
D2
IC4
A2
IC6
IC5
A3 A1
IC21
J1
IC11
IC12
DIGITAL IN
VIDEO3 CD/DVD
DVD
VIDEO2
CENTER
SUB
WOOFER
IC14
FRONT
J3
IC13
J2
DVDSURROUND
X08-3010-14 A/3
(J70-1363-31)
X1
W51W42
W41
W113W116
W118
W110
W108
W107
W101
W115
W92
W16
W38
W14
W10
W37
W2
W63 W66 W67
W50
W13
W52
W48
W74
W82
W53
W64
W55
W60
W78
W68
W69
W83
W80
W75
W89
W120
W85
W97
W90
W98
W81
W111
W88
W102
W93
W95
W77W76
W79
W62
W61
W54
W105
W125
W106
W103
W127
W104
W117
W124 W123
W91
W126
W46
W40
W35
W56
W27
W17
W11
W22
W7
W32
W15
W5
W3
W39
W12
W21
W6
W44
W45
W59
W57
W65
W58
W70
W71
W72
W94
W49
W96
W128
W147
W149
W99
W145
W146
W144
W8
W100
W143
W136
W109
W119
W139
W129
W84
W112
W122
W121
W114
W47
W31
W1
W4
W24
W25
W137
W135
W140
W130
W132
W131
W133
W134
W138
W142
MODE
LISTTEN
BAND
AUTO
SOUND
MEMORY
DIMMERSET UP
INPUT MODE
MONITOR
UP
MULTI CONT.
WHT
WHT
SP.B
(MUTE)
(SP. ON/OFF)
SP.A
DOWN
SOURCE
DIRECT
DTS
DIGITAL
DOLBY
PRPLOGIC 3STEREO (DOWN MIX)
CS5.1
BLK
RED
8MHz
4.332MHz
W43
R170
CP2
CP3
C54
R2
R10
ED1
W148
C40/C49
R169
CP502
C4
CP501
R168
W87
R6
C3
C32
R22
R11
R16
R17
R9
R23
R21
R20
R19
C5
R24
C6
R25
R27
R26
R18
R167
C23
R3
R1
R35
R56
C24
CP1
C30
R87
R88
R131
P2
R166
R164
R79
R85
W20
C51
W9
C1
C38
W141
W23
W73
R67
R86
W19
W34
W18
X2
R84
R165
W86
2
17
6
VOLUME CONTROL
13
1
2
8
7
STANDBY
POWER
21
20
1
2
1
2
G
I
O
7
8
1
2
1
173
1 5 15 35 51 55
G
I
O
INPUT SELECTOR
13
32
33
2
1
P1
31
C458
C59
R519
R517
R701
R704
C701
BE
L71
E
R703
R702
B
7
BE
R712
1
62
17
R717
R718
R713
EB
R682
R681
9
10
C681
C682
R662
2
1
C672
C662
C658
18
14 8
C413
C419
R412
12
C611
C417
CP44
R431
C418
CP41
CP42
C457
R453
C452
G
C456
I
3.3V
O
6
R515
58
41
R433
C403
41
R432
R426
17
85
C455
C461
R434
CP51
C502
7
CP52
17
C654
8714
916
8
1
81
7
C666
14
1
21
C415
C414
20
CP43
C416
916
1
C608
2
81
C602
44
40
1
R502
71
8
C501
14
148
R501
28
C508
C504
R503
39
DSP
29
C604
71
C509
C606
R56
C58
R68
22
12
R518
R310
R153
R154
R162
R163
R462
R465
B
BE
E
R464
R463
R461
R636
R634
C27
C24
AVR
10
9
R516
2
C28
5
4
R1
R632
C622
C3
C4
R2
1
1
R3
R5
C29
8
C1
C182
C181
C179
C180
C177
C167
23
22
R164
E.VOL
C169
R161
R160
C178
R4
R6
1
C2
2
R312
5
C161
R157
R158
C168
C170
22
C162
R156
R159
R155
21
8
SW
CP11
71
C188
BE
C185
C186
42
6
C187
C160
1
C156
C155
C159
R170
15
BE
2
R171
16
6ch
R255
C9
28
12.288MHz
L41
R55
R57
R42
C44
C25
C21
44
C503
R21
R520
111
R45
R59
C45
C46
R44
85
34
2333
AD/DA
C26
41
R43
C22
R36
1
R67
15
R38
R54
114
X1
R34
85
R
C212
R210
R212
R202
C304
R301
C311
R309
4
R311
5
C211
R209
R211
R201
LPF
C10
4
R112
C112
RS C309
R313
1
C310
C
R214
8
R314
16
1
C210
C209
R114
R213
LS
Config
C32
C111
R109
R110
R101
R102
4
R111
1
R259
R260
15
C110
C109
L
R113
C122
R124
C157
C158
1
30
R122
R128
5
30
8
R251
R256
1
R127
R126
R125
4
R121
R252
R123
1
C121
PC BOARD(Component side view
)
1
2
3
4
5
6
7
7 8
Refer to the schematic diagram for the value of resistors and capacitors.
ACEGIBDFHJ
GND
GND
ANT2
ANT1
4
3
2
1
100
100
R12
680K
R11
100K-
680-2.2K
R6
8P
0-8P
2-6P
C20
150P
R9
L6
C12
R10
10K
C15
27P
27P
C14
C16
3.9K
C13
R8
10K
R7
C17
100P
8
OUT
IF-OUT
7
C10
33K
L3
0-100
100K
0-8P
C18
C1
180P
L1
L2
10P
R1
C2
C6 4P
C3 0-8P
1.2M
470K-
1000P
180P
0.1
C9
68
R14
C19
C5
R5
L5
L4
3P
R13
680
C7
27P
R3
R2
C4
R4
33K
0.1
+B
6
VT
IFT
C8
0.1
5
OSC
270
R44
100
0.01
C3
33
3.3K
R7
820
680
R4
CF1
CF2
R12
100
1/4W
3P
C75
R41
100K
L1
10K
R42
1uH
L2
S-METER
DRIVE
TUNING
FM
AM/FM
S-CURVE
1
2
FM IF
S-METER
FM
DET
IF-BUFF
3
4
GND
5
AM
OSC
BUFF
ALC
30
29
SD
COMP
AM
AM IF
RF.AMP
AM
MIX
REG
28
AM
AGC
27
26
VCC
867
DRIVE
STEREO
9
12
10
11
13
15
14
MUTE
DET
25
24
23
22
38K304KHz
VCO FF
2
19K
FF
DECODER
ANTI-BIRDIE
P-DET
21
SW
STEREO
20
19
PILOT
DET
FF
19K 8
18
17
16
47P
0.047
C20
10u10
C19
+
0.047
C22
3.3u35
C21
+
R25 C26
330P
10u16
C23
+
4.7u25
C27
C25
VR1
10K
R27
R28
2.2u50
C29
+
2.2u50
C28
+
C31
C30
10u16
C38
+
10u16
C37
+
0.047
C12
22
R16
R14
10u16
C14
+
R17 3.6K
C45 22P
+
C15
1u50
3.9K
3K
R18
0.47u50
C16
+
R19
C17
1u50
+
8.2K
1
C81
L3
0.047
C11
47u16
C10
+
21
R23
R83 1K
47P
0.01
C36
C41
47P
21
C B I/F
DIVIDER
REFERENCE
3
2
1
4
5
2
22
14
SWALLOW COUNTER
1/16,1/17 4bits
ON
DETECTOR
RESET
DATA SHIFT REGISTER LATCH
6
7
8
10
9
11
POWER
CHARGE PUMP
PHASE DETECTOR
UNLOCK
20
19
18
17
16
UNIVERSAL COUNTER
12bits PROGRAMABLE
DIVIDER
1/2
15
13
12
7.2MHz
X1
C42
10P
1.2K
R59
R58 12K
10K
R48 1K
R47 1K
R46 1K
R45 1K470P
C44
47u16
C48
+
10u16
C46
+
1000P
2.2u50
+
0.022
R531K
R54
R51
5.6K
100
R52
470
R50
C47
1/4W
1K
R56
100P
C52
1K
R57
470P
C51
100P
C50
33K
R55
R43
220
VCC
2
1
4
3
E1
C1
0.022
C18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DET
S-LEVEL
SD
STEREO
R
GND
L
+12V
-12V
T. MUTE
PLL DT
PLL CLK
PLL CE
PLL DO
CH.SPACE
1u50
C72
+
47u16
C73
+
R1
R5
R6 220
0.01C5R11
C6
0.01
390
R9
1K
R10
0.01
R81
82
4.7u35
C32
+
W682
W683
820
8.2K
R75
1K
1.8K
R76
R78
R77
47K
R74
C83
100P
6
3
5
4
3
5
4
6
R84 1K
1K
1K
R72R73
C78
C49
2.2K
C24
R85
1M
1M
R86
R87
1M
0.022
C85
0.022
C84
R88 56K
470P
C86
3300P
C88
33K
R89
R20
4700P
C89
4700P
C90
1
C91
R79 1K
R33
R34
3300P
C35
2.7K
R32
VREF
T.METER
B
+B
1000P
C74
680
R3
12P
C43
L4
+12V
+B
+B
+12V
+B
+B
+B
+B
+B
+B
+B
+B
+12V
12V
+12V
+12V
C82
47u16
C7
+
R49
R15
330P
9.1K
C4
R8
33
4.7K
100
470P
0.033
0.033
0.02216K
6.8K
6.8K
15K15K
C76
1W
TR3
1T362
: HVU202 or
: 2SC2413
D1-3
TR2,3
: 2SK302
: 2SC2714TR1
FET
D3
TR2
OSC
BUFFER
OSC
DISTORTION(ST)
D1
FET
D2
RF AMP
TR1
MIX
GND
FM 75
J8
FM FRONT-END
Q201
D201
ADJ
FM TUNED
PLL
D204
FM +B
Q214
FM DET/MPX
AM DET
CN4
MUTING
CN5
Q202
FM IF AMP
D203
D209
Q210
Q211
Q212
CONT.
MUTING
D213
AM
-CN6
X07-A/3
2/4
GND LINE
SIGNAL LINE
B LINE
B LINE
AM RF
IC201 :
IC202 : LC72131
Q201 : 2SD1819A(Q,R) or
2SC4081(R,S)
Q202,212,214
: 2SB1218A(Q,R) or
2SA1576A(R,S)
Q210,211 : 2SD1757K
D201 : DA204U or
1SS302 or
MA143A
D203 : MTZJ8.2(B) or
HZS8.2N(B2)
D204 : MTZJ5.1(B) or
HZS5.1N(B2)
D213 : MA111
D209 : MTZJ3.3(B) or
HZS3.3N(B2)
NATOR
DISCRIMI-
LA1837
A1 (W02-2622-05)
IC202
IC201
TUNER UNIT (X07-3120-10) (B/3)
A
VR-410 (1/4)
3.6V
8.2V
0V
(2.7V)
2.3V
1.3V
(2.3V)
0V
7.1V
(9.2V)
8.8V
(3.9V)
7.0V
1.7V
3.6V
(1.3V)
0V
(1.3V)
0V
3.3V
4.3V
4.3V
3.3V
2.8V
3.6V
3.6V
2.5V
(FM98MHz)
1.0V
(2.6V)
0V
0V
2.6V
4.7V
(0V)
1.8V
(0V)
11.8V
1.0V
(5.1V)
8.2V
3.6V
6.3V
1.2V
6.6V
1.2V
OFF: -1.8V
OFF: 4.8V
4.3V
11.7V
7.0V
(0V)
0V
6.8V
(0V)
4.4V
ON: 0.7V
ON: 0.2V
3.8V
7.3V
3.6V
3.6V
0V
0.2V
8.2V
(12.0V)
0V
MONO: 0V
11.1V
-11.8V
ST: 7.1V
10.6V
AM: 0V
FM: 7.3V
(@FM98MHz)
3.8V
5.2V
MODE CARRIER
MODULATION
ANT INPUT
FREQUENCY DEVIATION
FM 98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot) 60dB
AM 1000(999)kHz 400Hz MONO 30% MOD 60dB
1
2
3
4
5
CAUTION: For continued safety, replace safety
critical components only with manufacturer's recommended 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
6
parts are acceptably insulated 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 as the AM/FM
7
signal generator is specified to the conditions as shown in the list below. The measurement value may
vary depending on the measuring instruments used or on the product. The value shown in ( ) is actual reading measured in the AM mode.
Y05-3970-10
VR-410
Loading...