RDR-HXD790/HXD795/HXD890/HXD895/HXD990/HXD995/HXD1090/HXD1095
For Schematic Diagram
• Refer to page 4-3 for waveforms.
• Refer to page 4-47 for printed wiring board.
4-19
4-20
DIGITAL TUNER
DT-124 (3/3)
IC312
IC304
IC307
IC300
IC306
2
DT-124 BOARD(3/3)
DIGITAL TUNER
-REF.NO.: 40,000 SERIES-
CN202
THROUGH THE
PD-142 HARNESS
TO
(SEE PAGE 4-40)
(SEE PAGE 4-42)
FAN
POWER BLOCK
DIGITAL AERIAL
IN
OUT
IC313
IC309
4
T O ( 1 / 3 )
5
T O ( 2 / 3 )
3
T O ( 1 / 3 )
Y/CHROMA
Y
CHROMA
SIGNAL PATH
PB
AUDI O
REC
SIGNAL
VIDEO SIGNAL
2.4
3.2
0
0
0
0
0
0
0
0
3.2
0
0
1.7
0
1.6
4.9
0
0
0
4.9
5
4.9
2.4
5.6
5
0.3
3.2
3.2
3.2
3.2
0
3.1
3.1
3.2
3.2
1.7
1.7
3.2
1.8
1.8
0
0
1.8
1.8
3.2
1.8
3.2
3.2
1.7
0
1.6
1.6
3.2
3.2
3.2
3.2
2
0
0
5
1.9
0
5
0
5.6
4.8
5.6
4.8
4.7
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
5V REG
5V REG
REG
2.5V REG
5V REG
100
R333
25V
0.1
F
C416
10V
1
F
C417
1
C418
R682
33
R681
33
10k
R685
10k
R686
R680
33
10V
1
F
C421
25V
0.1
F
C415
TS1_DATA0
TS1_DATA1
TS1_DATA2
TS1_DATA3
TS1_DATA4
TS1_DATA5
TS1_DATA6
TS1_DATA7
TS1_MCLK
TS1_MVAL
TS1_MSTRT
25V
0.1
F
C412
10V
1
F
C406
25V
0.1
F
C408
0
R673
0
R674
25V
0.1
F
C399
25V
0.1
F
C398
0
R668
0uH
F321
390
R687
560
R672
3.3k
R331
X300
20MHz
10V
2.2
C392
16V
47
C395
25V
0.1
F
C383
16V
47
C385
25V
0.01
B
C391
2012
10V
2.2
B
C393
0uH
F313
0uH
L314
16V
100
C319
2012
10V
2.2
B
C431
0
R305
10k
R304
50V
100p
C303
10V
1
B
C341
10V
1
B
C340
0
R355
0
R354
0uH
F317
0uH
F318
3.9k
R341
3.9k
R342
V+3.3DT
I2C_SCL_DTBR
I2C_SDA_DTBR
0
R336
0
R337
25V
0.1
F
C380
16V
100
C381
16V
100
C382
1SS355TE-17
D303
4.7k
R321
47k
R319
2SC4154TP-1EF
Q308
10k
R359
10k
R315
10k
R363
ISA1602AM1TP-1EF
Q306
10k
R351
10k
R352
4.7k
R313
4.7k
R326
4.7k
R314
25V
0.1
F
C359
16V
10
C353
0uH
F306
DT_TUON
2012
10V
2.2
B
C404
10V
1
B
C388
100
R312
2012
10V
2.2
B
C373
18k
R325
10k
R327
0.1
C409
16V
0.1
B
C413
50V
10
C367
0uH
F309
V+32VT
25V
0.1
F
C364
16V
100
C368
0uH
F310
R678
75
R679
75
TP328
TP327
TP303
TP302
TP612
TP613
TP614
TP618
TP619
TP610
TP609
TP608
TP607
TP606
TP605
TP604
TP603
TP305
TP304
TP314
TP342
TP306
TP307
TP308
TP309
TP310
TP311
TP312
TP313
TP611
TP339
TP301
TP531
2SC4154TP-1EF
Q307
25V
0.1
F
C422
54
3
2
1
IC309
FPF2007
C313
4.7
6.3V
B
2012
D302
SM15T6V8A
8765
4
3
2
1
IC307
MM1689FHBE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
29
28
27
26
25
24
23
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
IC313
DRX3975D
2012
6.3V
4.7
B
C320
0uH
F397
0uH
F398
2.2k
R309
2.2k
R310
C361
22p
50V
C356
22p
50V
C354
1
10V
B
22k
R353
22k
R358
10p
C397
50V
12p
C402
1608
50V
0uH
L315
25V
0.022
B
C396
25V
0.022
B
C400
DTC143EUA-T106
Q310
DTC143EUA-T106
Q309
GNDD
GNDD
TP1025
TP1024
TP335
TP333
TP331
TP332
TP330
TP334
TP336
TP337
TP329
TP1023
R316
0
25V
0.1
F
C372
50V
100p
C370
TP300
680
R311
DET_ANT
ANT5V_SW
TP532
0
R306
2012
2.2
B
C332
TP315
1
B
C309
16V
100
C339
TP340
P_CONT2
V+5VA
TP533
25V
F
C423
0.1
2012
6.3V
B
C334
4.7
16V
C318
100
16V
C329
100
54
3
2
1
IC306
S-1170B50UC-OUJTFG
RDR-HXD795/HXD895
/HXD995/HXD1095
TP317
2012
6.3V
B
C314
4.7
V+5CI
54
3
2
1
IC300
S-1170B25UC-OTKTFG
16V
100
C302
2012
4.7
B
C315
0
R303
6.3V
22
C603
0
R300
0uH
F314
0uH
F300
TP520
TP535
6.3V
22
C324
2012
4.7
B
C433
TP585
TP325
2012
4.7
B
C602
1
B
C301
TP536
V+2.5D
VD+3.3D
VD+3.3D
VA+3.3A
TP338
0
R357
16V
47
C343
C312
10
2012
0uH
F302
TP322
TP538
16V
100
C307
16V
47
C342
0uH
F301
TP324
TP323
TP537
0.1
C596
1
2
3
4
5
6
7
8
9
10
11
12
12P
CN202
TP575
TP576
16V
100
C601
4V
220
C595
16V
100
C599
0.1
C598
4V
220
C597
TP577
0.1
C593
0.1
C594
TP574
TP573
TP572
P_CONT
V+5.8E
1
2
CN203
2P
2012
0
R650
TP582
0.1
C600
TP626
FAN-
2012
0
R703
0
R348
0
R349
0
R350
E
KN301
R3117
0
R3116
0
R3115
0
R3114
0
R691
0
R692
0
R689
0
R690
0
R345
0
R693
0
R347
0
R343
0
GNDT
V+12.1EV
C304
1
10V
B
R356 0
TP326
V+1.5V
5
4
3
2
1
S-1132B50-U5T1G
IC312
Vout
GND
NC
ON/OFF
Vin
5
4
3
2
1
S-1132B50-U5T1G
IC304
Vout
GND
NC
ON/OFF
Vin
ANT POWER
N/C
TU
N/C
SCL
SDA
AS
X-TAL OUT
IF OUT2
IF OUT1
IF AGC
N/C
GND
N/C(RF AGC)
N/C
B1(+5V)
N/C
U301
DTT TUNER
0
R307
PS2
PS1
VIN2
VIN1
NC
GND
VO2
VO1
VOUT
GND
FLAGB
VIN
ON
NC
VSS
ON/OFF
VIN
VOUT
VSS
NC
VIN
VOUT
ON/OFF
SW+3.3V
EV+12.1V
GND
GND
SW+3.3V
V+5.8E
SW+1.5V
P_CONT
V+5.8E
SW+1.5V
GND
GND
FAN-
FAN+
OFDM
DEMODULATOR
PROTECT DET
PROTECT DET
PROTECT DET
PROTECT DET
PROTECT DET
5V SW
XCOFDM_RESET
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
Note :
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.