Marantz SR-14EX Service Manual page 9

TUNING VOLTAGE A101 4pin
FM 87.5MHz 108MHz
J104
2.1V 7.2V
AM 520/531kKHz 1710/1602kHz
A4 1.1V 7.6V
A8
R101
10k
1/2W
U ONLY
C202 C216
0.01 100/16V
ANT 8 A4 A4
F201
R217
GND 7 A4 K,N,S:FF11070620
180
GND 6 A4
FM 1/4W U :FF11070610
75ohm
VCC 5
GND
VT 4
OSC-O 3
A4
AM
R205
R203
GND 2 A4
2.2K
1
IF OUT 12.0V
J101
(0V)
FM
TKD31-6215A A101
3.9V
FRONT-END
(0V)
ANT
R201
TERMINAL (0V)
ST DIST 0
R204
R202
F201
470
390
FM CF
LA01
U,K,S
A4 A4
C218 A4
MW-ANT
ONLY
0.01
CA04
M
390P/100V
DA01
RA12
A4
SVC342-L
0
CA05
RA01 47P
10K
CH
CA01
20P RA02
CA03
CA02
100K
15P
0.047
A4 A4 A4
DA05 CH
MW TRACKING
MA716
A4 A4 A4 A4
600/603kHz
RA14 0
MW TRACKING
1400/1404kHz U,K,S ONLY
RA04
DA02
1SS356
CA12
LA03
DA03
150P
LW-ANT
VCD
CH
CA08
20P
CA09 CA11
RA06
15P CH 68
100K
CH
RA08
A4 A4 A4 A4 A4
150K
DA04
LW TRACKING
1SS356
LW TRACKING 260kHZ
0
170kHz
CA13
J102
QA03
RA09
2SD2144 2.2K
S/U/V
0
A4
A4
(0)
AM(LW)BLOCK
N,(LW) ONLY
5V-6
+5VT
C361 100p
C362 100p
L351
C363 100p
C364 100p
C356 22p CH
R357 10k
(CH)
24 23 22 21 20 19 18 17 16 15 14 13
1 2 3 4 5 6 7 8 9 10 11 12
C357 27p CH
R352 (CH)
100k
C360
1000p
C352
10/50V
C359 C355
10/50V 0.01
R353
47k Q353
DTC114ES
/UN4211
/KRC102M
OSC-KIL
DTA114ES
/KRA102M
S,N ONLY (RTR)
RDS BLOCK
J106
A3
A4 A7 A9
11
R216
1k
FM MUTE
R211
C222
1000P
B
Q354
R212
+15VT
2SC536
15V-4 10k
C223 SP/ETC
C220
0.01
2200P
Q203 A4
DTA114ES
C217
A4
/ETC
0.027
A4
330
R355
A4 M
10k
Q202
2SC1809SP C203
0.047
3.1V
F202
C201 RA13
FM CF 0
0.01
30 29 28 27 26 25 24
U,K,S ONLY
A4 A4
QA01
LA02
2SC536
1 2 3 4 5 6
MW-OSC SP/ETC
0
(3.6V)
A4
?0V?
C206
C235
10/50V
0.01
0
LA06
(4.3V) A4
450KHZ
A4 A4
RA03 [0V] FA01
SFZ450JL3
10K
A4
CA06
0.01
R207
+15VT 180
150K L201
15V-4 1/4W AM IF
QA02 A4
A4 A4
2SC536
LA04 MONO DIST
SP/ETC
LW-OSC
C233
0.01 C208
0.047
4.7/50V
0V
(0V)
A4 A4 A4 A4
[3.6V]
D202
9.1V FM AM IF/MPX
RA07
10K
A4
VOLTAGE BY MODE
* :FM (*):AM(MW)
0.01
[*]:AM(LW)
CA14
0.01 CA07
0.01
A4
A4
C227
2200P
U
K,S,N
A4
5V-6
+5VT
30 29 28 27 26 25 24
REG
AM AM
AM
AGC
AM IF/DET
MIX RF AMP
BUFF OSC
SD
AM
COMP S-METER
AM/FM
BUFF
FM
TUNING DRIVE
S-METER
S-CURVE
FM IF FM DET
GND
1 2 3 4 5 6 7
Q201 LA1837
Q352
/UN4111
C301
L301
0.033
SEP
LPF-V10-A1
Q302
10k
DAMMY
A4
L302
LPF-V10-A1
Q303
C302
DAMMY
0.033
C309
DAMMY
C310
DAMMY C304
10/50V
R315 2.7K
R316 2.7K
23 22 21 20 19 18 17 16
C507
0.01
FM/AM IF MPX
A4
7 8 9 10 11 12 13 14 15
STRQ/MUTE
A4
C226
0.01
R214
47K
A4 A4 A4 TU-CE
AM STOP
TU-DO
MONO/ST
TU-CLK
C234 C236
0.01
TU-DI
A4 A4
Q205
DTC144ES
A4
Q204
A4
DTC144ES
PRE AMP K,S,N ONLY
C217 R215 C301/302 R201 R211
0.027 27k 0.047 0 10k
0.015 68k 100 22k
0.033
R301 C305
47 4.7/50V
L
L R R
23 22 21 20 19 18 17 16
DECORDER
C306
STEREO R302
SW 47 4.7/50V
STEREO DRV.
MUTE
VCO FF FF FF
PILOT
DET
PHASE DET
VCC
V-SM
8 9 10 11 12 13 14 15
Tuner P.C.Board
P104-1/2
15V-4
+15VT
C512
DAMMY
C225
0.01
R510
R504 R506 A4 A4
PLL-BLOCK
4.7K
4.7K 1K
C508
100/16V
C505
R502
2.2/50V
2.2K
C504
A4
0.01
R505
C503
C513
1K
100/10V
DAMMY
C502
24 23 22 21 20 19 18 17 16 15 14 13
47P
CH +15VT
A4 A4
QA05
DTA114ES
15V-4
/UN4111/KRA102M
R515
1 2 3 4 5 6 7 8 9 10 11 12 10K N(LW)ONLY
14.9
(0.0)
R509
C501 ?14.9?
47P 22K
Q501 MW
CH
LC72130
0
R507
(15.0)
68K
?0?
L501 0
+15VT
QA04
L502 0
R508 DTA114ES
L503 0 14.9
R513 47k /UN4111/KRA102M
(14.9)
10K ?0? N(LW)ONLY
L504 0
TU-DO
TU-CLK
0
(0)
?15.0? RDS-DI
TU-CE
R516 D502
DAP202K
DAMMY
TU-DI
N(LW)ONLY
F ONLY
QA06
DTC114ES/UN4211
15V-4 /KRC102M
RA10
+15VT
N(LW)ONLY
10K
F.N(LW)ONLY
A4
C316 0.01
-15VT
-15V-5 +15VT
15V-4
C317
100p
A3 A3
C315
R319 R307 C311
0.01
15k 220 4.7/50V
R303 10k
TUNER-L
C319
R321
4.7/50V
JUMPER
R309
R317 47K
47k 4 3 2 1
-
+
Q301
+
- NJM4558M
5 6 7 8
R310
A3
A3
R318 47K
47k
R322 TUNER-R
JUMPER
R308 C312
R304
220
4.7/50V
10k
C320 R320
C318
4.7/50V 15k
100p
R301 R321 C305
R302 R322 C306
+15VT
U 0 JUMPER JUMPER
15V-4
-15VT
-15V-5
+5VT
K,S,N 47 OPEN 4.7/50
5V-6
12
5V-6
+5VT
J105
12MQ-ST-L
TO JY02(PY04)
1 NC
TU-DO
2
TU-CLK
3
4 RDS-DI
TU-CE
5
TU-DI
6
7 TU-SD
A4
TUN-L
TUN-R
+15VA
15V-4 +15VT
-15VA
-15VT
-15V-5
+5VT
5V-6
+5VT