Marantz SR19/K1G Service Manual page 8

DE-EMPHASIS
50µS
P104 1/2 /SCAN STEP SW. 9kHz
K ONLY
TUNING VOLTAGE (OTHER)
Tuner P.C.Board
FM 87.5MHz 108MHz
2.1V 7.2V
AM 520/531kHz 1710/1602kHZ
75µS
1.1V 7.6V
10kHz
TUNING VOLTAGE (F)
ST DIST
A101
011K F:AV00901010
FM 76.0MHz 90MHz
260J123010 OTHER:AV00903010
1.7 4.0V
AM 531kHz 1602kHZ
FM FRONT-END
1.1V 6.9V F201
K,N,S:FF11070620
U,F :FF11070610
J101
8 7 6 5 4 3 2 1
Ω
FM75 R217
180
R101 1/4W
ANT 10k
R201
1/2W
F,U ONLY
TERMINAL GND U ONLY
C202
C216 0.01
100/16V
R201
AM
47
K,N,S ONLY
C218 F201
FMCF
0.01 RA01
LA01
U104 10k
MW-ANT
F,K,S,U
DA01 VCD
CA01
20P RA02
CA02
100k
0.047
MW TRACKING
600/603kHz MW TRACKING
1400/1404kHz
LA03
DA03
LW-ANT
VCD
CA08
20P
CA09
RA06
15P CH
100k
LW TRACKING LW TRACKING DA04
0 1SS135
170kHz 260kHz
QA03 0
J102 2SD2144 (0)
YL01010140 S/U/V [0.7]
AM(LW)BLOCK
J104
YL01010140
J106
YL01010140
C365
D351 R356
47/16V
5.1V 470 1W
+15VA
C373
0.01
C353
330p
C364 100p
C363 100p
R357
C362 100p
10k
C361 100p
CA78
C356 15p
100/16V
24 23 22 21 20 19 18 17 16 15 14 13
RA74
1K
1 2 3 4 5 6 7 8 9 10 11 12
C357 15p
R352 100k TUNED ON :L
R353
470k TUNED OFF:H
Q353
C352
28 27 26 25 24
DTA114ES
10/50V
/ETC
C354
560p
C374
L359
0.1
1 2 3 4 5
C366
1/50V
CA51
1000P
R354
R355 10k
Q352 RA99
DTC114ES LA51 RA77 47k
/ETC 450kHZ 10k
(AM SEP.ADJ)
N, S ONLY (RDS)
RDS BLOCK CA53
10/50V
9
C309
0.015
50V
C310
S301 0.015
50V
FM MUTE R211
SEP
R212 C222 F,U:10k
10k 1000p K,N,S:22k
C220
2200P
R205 C223 C217
R203
0.01
2.2k 330
LA05
12.0V
39MH
(0V)
3.9V
Q202
(0V)
2SC1809S
P
3.1V C204 0.047
(0V)
R206
R204 C201 6.8k
R202 F202
470 0.01 FMCF
390 30 29 28 27 26 25 24 23 22 21 20
U107
C205
3.3/50V
FM/AM IF MPX
C237
CA04 0.01
390P/100V
QA01
LA02 1 2 3 4 5 6 7 8 9 10 11
2SC536
MW-OSC SP/ETC
0
CA05 (3.6V)
47P CH [0V]
C206
C235
0 C203 10/50V
0.01
CA03
(4.3V) 0.047
15P CH LA06
[0V]
450kHZ
FA01
RA03
C219
SFZ450JL3
10k
10/50V
DA02
CA06 0.01
*
R207
180
DA02 RA04 150k
+15VA 1/4W AM IF L201
QA02
1SS135
CA12
2SC536
150P MONO DIST
SP/ETC
C233
CH
0.01 C208
C234
0.047
4.7/50V
0V
CA11 (0V)
68 [3.6]
Q209
CH
2SC536 FM AM IF/MPX
LA04
RA07 SP/ETC
RA08 LW-OSC
10k N,S ONLY
150k
R221
5.8
10k
(0)
N,S ONLY
CA13 0.01 [0]
RA09
2.2k
CA14
CA07
0.01
0.01
N ONLY
C227 C217 R215 C301/302
U 2200P 0.027U 27k 0.047U
K,N,S 0.015U 68k 0.033U
F 0.027U 27k 0.033U
JA51
QA52
7 7
NJM7808F
CA77
6 6
XA51 RA61 CA66 +8V
10/50V
3.6MHz 2.7k 0.01
CA79 5 5
0.01
CA80
4 4
10/50V
RA62 RA75
3 3
2.2k 100k
CA67 QA53
2 2
47P (CH) DTC144ES
1.7
CA71 1 1
CA68
1000P
1/50V
MONO:5V
STEREO:0V
CA63
0.47/50V
QA54
2SC536
23 22 21 20 19 18 17 16 15 SP/ETC
RA51
47k
RA78
10k
6 7 8 9
10 11 12 13 14
CA76 RA60
RCH 1/50V 4.7k
R OUT
LCH
CA75 RA59
1/50V 4.7k
CA62
CA61
680P
680P
RA69 RA70 RA56 P154 (RAS)
RA55
6.8k 6.8k 47k
47k
RA72
6.8k
AM STEREO BLOCK
RA57 RA71 RA54 RA58
RA53
47k 27k 6.8k 47k 27k
F ONLY
CA57 330P CA59 330P CA58 330P CA60 330P
(M03)
( ) : AM/MW
[ ] : LW
+15VA
15.0 C507
C301
L301
0.01
(1.3)
[1.3]
C303 Q203
10/50V DTA114ES
FM:L R510
/ETC
AM:H 4.7k
R315
2.7k 0
(15.0) R506
[15.0] 1k
C302
C225
L302
0.01
R504
R502 C505
4.7k
2.2k 2.2/50V
LCH
RCH
4.3
RCH
19 18 17 16 C508
100/16V
D201 C504 R505
* 0.01 1k
12 13 14 15
Q501
STRQ/MUTE LC72130
C502
24 23 22 21 20 19 18 17 16 15
47p CH
X501
7.2MHz
1 2 3 4 5 6 7 8 9 10
C501
47p CH
R516
*
L501 47UH R511
8.2k
TU-CE
AM STOP
TU-DO
R214
L502 47UH
47k TU-CLK R513
C236
10k
0.01 L503 47UH
TU-DI
R209
4.7k
L504 47UH
MONO/ST
0
D503
Q204
F ONLY
DTC144ES
C316 0.01
+15VA
R313 R314
C313
C226 220 1/4W 220 1/4W
47/16V
+15VA
0.01
QA08
DTA144ES C317 100p
C314 C315
F ONLY R303
47/16V 0.01 F:4.7k
K,N,S:10k
R301 C305
4.7k 4.7/50V
8 7 6 5
QA07
DTC144ES
1 2 3 4
F ONLY
J103 C306 R302
F ONLY 4.7/50V 4.7k
+15V R304
F:4.7k C318
ST-IND
K,N,S:10k 100p
MONO/ST
IF-IN
R301 * C305 * R303 *
LCH
R302 * C306 * R304 *
U ONLY
RCH
L L
R
30 29 28 27 26 25 24 23 22 21 20 19 18 17
REG
AM AM DECORDER
AM
AGC AM IF/DET
MIX RF AMP STEREO
BUFF OSC
SW
SD AM
COMP
S-METER STEREO DRV.
MUTE
AM/FM
BUFF VCO FF FF FF
FM
TUNING DRIVE PILOT
S-METER
S-CURVE DET
PHASE DET
FM IF FM DET
GND VCC V-SM
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Q201 LA1837
P104 - 1/2 (M03)
(RTU)
+15VA
PLL-BLOCK
R512
D501
270
+15VA
5.1V 1W
C503
100/10V
14 13
QA05
DTA114ES
R515
N ONLY
11 12 10k
14.9
(0.0)
R509 [14.9]
22k
MW
0
R507
(15.0)
68k RA10
[0]
10k
F,N ONLY
14.9
(14.9)
QA04 J105
[0]
DTA114ES
N ONLY
1 N.C
TU-DO
TU-DO
2
TU-CLK TO JY70 (PY64)
0 3 TU-CLK
(0)
RDS-DI
[15.0] 4 RDS-DI
M06-CONNECT
TU-CE
5 TU-CE
TU-DI
6 TU-DI
TU-SD
7
QA06
DTC114ES
/ETC
-15VA N ONLY
PRE AMP K,N,S,F ONLY
C311
R307
220 4.7/50V
TUNER-L
R309
47k
P104
R310
47k
- 2/2
TUNER-R
R308 C312
220
4.7/50V
+15VA +15VA
-15VA -15VA
R
16
15
10