Denon AVR-1604, Service Manual

Page: 71 / 71

1 2 3 4 5 6 7 8
A
B
C
D
E
SCHEMATIC DIAGRAMS (8/8)
AVR-1604/684 / AVC-1580
71
SCHEMATIC DIAGRAMS (8/8)
TUNER UNIT
71
OPT8
OPT7
OPT6
OPT5
OPT4
OPT3
OPT2
-
-
3.3K R428
470/1.2K R407/R408
R473
R474
1/50 C434
50KB VR402
18K R471
OPT1 SFE10.7MA8
R-NO. USA(E3)
CF401/CF402
EUT,G1K EUROPE(E2),G2A
OPT9 SFE10.7MS3 J442 10.7MA8/MS3
R-NO.
100KB
0.33/50
10K
2.4K
620/680
39K
180
-
-
39K
50KB
0.33/50
C462
R438,R439
T406
R472
Q409
R449
R450
620/1.2K
6.8K
OPT10
OPT11
OPT12
OPT13
OPT14
OPT15
OPT16
RDS ONLY
-
-
-
-
-
-
100K
-
KTC3880
150K
ANTI-BIRDIE
1K
3.9K
100
100K
470P -
-
-
-
-
EUROPE(E2),G2A EUT,G1K
JUMPER
USA(E3)
- JUMPER
PLL_DATA
PLL_CE
FROM CPU BOARD
TUNER_MUTE
OPT17
R-NO.
C446,C447 270P
USA(E3)
PLL_DT_IN
ST
TUNED
GND
RDS_DET_OUT
+15V
PLL_CLK
C448,C449
R440,R441
R442,R443
J403,J404
T404,T405
R444,R445
R446,R447
120K
3.3K
JUMPER
-
8.2K
JUMPER
470P OPT18
OPT19
OPT20
OPT21
OPT22
OPT23
OPT24
TUNER BOARD
330P -
470
3.3K
GND
TUNER_R
GND
TUNER_L
JUMPER
LPF(MPX)
8.2K
JUMPER -
3.3K 2.2K
120K
-
220K
GND GND
6CH_FL
6CH_FR
330P 180P
EUROPE(E2),G2A EUT,G1K
C
SW
FL
SL
SR
TO CPU BOARD
GND GND GND
6CH_SL
6CH_SW
6CH_C
6CH_SR
FR
R420
3K3
C421
24P
C420
22P
X401
X7M2
X-OUT
GND
AOUT
REFERENCE
DIVIDER
UNLOCK
DETECTOR
20 21 22
X-IN
NC CE
C2B I/F
3 2 1
DO CLK
4 5 6
LATCH
DATA SHIFT REGISTER
DATA
COUNTER
UNIVERSAL
FM MONO DE-EM AM
7 8 9 10
RESET
ON
POWER
1/16,1/17 4BIT
SWALLOW COUNTER
PUMP
PHASE DETECTOR
VDD
PD
AIN
19 18 17
COUNT
NC
AM OSC FM OSC
16 15 14 13
DIVIDER
12bit PROGRAMABLE
1/2
AMIF
12
ATT
11 11
IC401
LC72131
R470
1K
C415
47/16
R412
5K6
R413
220(1/4W)-R
Q402
DTA114YK
R472VT
10K
C472VT
47N
100P C409 C410 470P
R414
2K2
C412
22N
R416
680(1/4W)-R
C419
10/35
C411
1N
R418
33K
R419
1K
ZD401
MTZJ5V1
C414 1/50
R415
1K
R417
1K
C413 100P
R424
4K7
DTA114EK
Q403
DTA114EK
Q404
R431
5K1
R478
10K
R477
10K
R475
12K
T403
FM-DET-B
R471 OPT4
FM-DET-A
T402
R432
10K
C436
22N
C435
22N
AM-IF
FM - IF QD
LED
DRIVER
POST
AMP
IF IF
BUF BUF
NARROW
S-METER
DET S-METER AGC MIX RF REG OSC
OSC
BUF
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
IC402
LA1266
C433
22N
C432
47/16
C431
33P
C434
OPTION7
R430
100(1/4W)-R
R472
OPT12
Q409
OPT13
R449
OPT14
R450
OPT15
10 9 8 7 6 5 4 3 2 1
CN401
C401
1N
C402
1N
R471VT
220
456
1
2
6 1
2
3 4 3
L403
C408
6P
10
R401
1uH
L401
ANT
NC AGC GND VT
+B
IF OUT OSC OUT
8 7 6 5 4 3 2 1
FE401
FTE4-401TB
D403
KDS160
R456
100
C423
22N
R405
100(1/4W)-R
R406
4K7
R407
470
Q401
KTC3880
R474
OPT2
CF401
OPT1
C464
3P-R
R404 100K C416
10/35
C405
22N
C406
18P
C471VT
1/50
R476
56K
R403
470
C403
22N
C417
100/16
10uH
L402
C404
2P
R426
10K
C426
3.3/50
C425
4.7/50
C461
22P
R409
470
C418
10N
R455
330
R410
4K7
C424
22N
R411
68K
R408 OPT3
CF402
OPT1
T401
AM-DET
VR401
20K(B)-H
R491
10K
R429
82
C427
4.7/50
C428
22N
R427
10K
R434
100(1/4W)-R
CF403
450C
VR402
OPT5
R428
OPT6
C437
47/16
C453
27P
X402
CSB456F
C439
0.22/50
R435
3K3
C438
1/50
C440
1/50
C430
47N(EB)
R479
100K
DTC114YK
Q407
C441
1/50
D405
KDS160
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
CN402
10N-K
C490
100P
C481SL
2M2
R481SL
2M2
R481SR
100P
C481SR
100P
C481C
2M2
R481C
2M2
R481SW
100P
C481SW
R482C
100
R482SW
100
R482FL
100
R482SL
100
R482SR
100
R447
OPT24
R444
OPT23
R445
OPT23
R442
OPT20
OPT21
J403
OPT20
R443
MPX
123
4
5
6
OPT22
T404
MPX
1 2 3
4 5 6
OPT10
T406
D406
KDS160
R448
2K2
Q408
DTA114EK
R459
4K7
R458
4K7
Q406
KTC2874
Q405
KTC2874
MPX
123
4
5
6
OPTION22
T405
C444
4.7/50
C456 680P
VR403
200K(B)-H
OPT8 R473
OPT9
J442
C462
OPT11
C445
10/50
VOLT
REG
OSC PHASE
COMPA
RATOR
PILOT
DEF
LAMP
DRIVER
TRIGGER
STEREO
SWITCH
MUTING
OUTPUT
VCC ON
MUTING
VCOSTOP
SYMMETRICAL
REACTANCE
CIRCUIT
MUTING
AM
FM
CHANGE
DECODER
MUTING
CONTROL
FM/AM
CHANGE
FF FF
FF FF FF
38KHZ 19KHZ 19KHZ
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22
IC403
LA3401
56N-M C463
C450
10/50
C451
10/50
R438
OPT16
R439
OPT16
OPT17
C447 OPT17 C446
OPT18
C448
OPT18
C449
OPT19
R441
OPTION19
R440
1SS133T
D404 C442
2.2/50
100K R437
R436
47K
C443
10/50
R482FR
100
100P
C481FR
2M2
R481FR
2M2
R481FL
100P
C481FL
OPT21
J404
R446
OPT24