Hytera MD78X Service Manual page 211

5
D
TP703 TP703
TP702 TP702
GND GND
C701 C701
0.01u 0.01u
IF-out
TP701 TP701
TEST POINT TEST POINT
R724 0 R724 0
C709 C709
0.1u 0.1u
L704 L704
10u 10u
C716 C716
180p 180p
C
C721 C721
L707 L707 100p 100p
601S 601S
1 2
C729 C729
0.1u 0.1u
1 2
L710 L710
601S 601S C733 C733
3V3A_RX 0.1u 0.1u
601S 601S
1 2
C755 C755
+ + C756 C756
L714 L714
0.1u 0.1u
10u/16v 10u/16v
B
A
5
4
MD78X/MD78XG Schematic Diagram (IF Circuit)
IF IF
TP704 TP704
C703 C703 2FLO 2FLO
330n 330n
3P 3P
L716 L716
C743 C743
47p 47p
C702 C702
0.01u 0.01u
L701 L701
1 2
L703 L703
1 601S 601S 2 C705 C705
0.1u 0.1u
R701 R701 C706 C706
601S 601S
51 51
470p 470p
C707 C707
R703 R703
0.1u 0.1u
2.2k 2.2k
C708 C708
C710 1000p C710 1000p
0.1u 0.1u
L705 L705 C711 C711
R704 R704
10u 10u C712 C712 NC NC C713 C713
0.1u 0.1u 560 560 3900p 3900p
C715 C715
0.47u 0.47u
1 36
MXOP GNDL
C720 C720 0.1u 0.1u
2 35
MXON FREF
3 34
GNDF GNDS
R705 10K R705 10K
C722 C722
4 33
IF2N SYNCB
100p 100p 5 32
IF2P GNDH R711 33 R711 33
U701 U701 98_FS1
6 31
C728 C728
VDDF FS
98_DOUTB1
7 30
1000p 1000p GCP DOUTB R717 33 R717 33
8 IF IC IF IC 29 98_DOUTA1
GCN DOUTA
98_CLKOUT1 R715 33 R715 33
9 28
VDDA CLKOUT
10 27
GNDA VDDH
11 26
C719 C719
VREFP VDDD
12 25
C736 C736 VREFN PE
49 L711 L711 1u 1u
PowerPAD
C737 C737
601S 601S
0.1u 0.1u
0.01u 0.01u C739 C739
C738 C738 100p 100p
100p 100p R713 R713
100k 100k
98_PE1 R719 R719
R714 R714 98_PD1 R721 R721
C740 C740 C741 C741
98_PC1
1.8k 1.8k R720 R720
0.1u 0.1u 0.1u 0.1u
TP707 TP707
C747 22P C747 22P
L715 L715 3.3u 3.3u
C744 C744
0.1uF 0.1uF R716 5.6k R716 5.6k C745 C745
56p 56p
C748 C748
0.1u 0.1u R718 R718
510 510 D702 D702
HVC376B HVC376B
C750 C750
1uF 1uF
4
3
L702 L702 601S 601S
1 2
C742 C742
C704 C704
1u 1u
220P 220P
L717 L717
C718 C718
TP705 TP705 6.8uH 6.8uH
CV2 CV2 1u 1u
R709 R709
R707 R707
10k 10k
180 180
Q701 Q701
C723 C723 C724 C724 TRANSISTOR TRANSISTOR C725 C725
15p 15p 18p 18p
0.01u 0.01u
2
98_FS C731 C731 C730 C730
6p 6p L708 L708 22p 22p C732 C732
98_DOUTA
3V3D_RX R710 R710
D701 D701 220n(HQ) 220n(HQ) 22p 22p
98_CLKOUT HVC350B HVC350B 8.2k 8.2k
1 2
C735 C735 C734 C734 R712 R712
L709 L709
30p 30p 270 270
601S 601S
0.1u 0.1u
L718 L718
470n 470n
C749 C749
39P 39P
33 33
98_PE
33 33
98_PD
33 33
98_PC
L713 L713
0.56u 0.56u
18M 18M
C751 C751
10p 10p C714 C714
10p 10p
98_FS1
R725 33 R725 33
98_DOUTB1
98_DOUTB
98_DOUTA1
98_CLKOUT1
98_PE1
98_PD1
98_PC1
C769 C769 C768 C768 C767 C767 C766 C766 C765 C765 C764 C764 C763 C763
100p 100p
100p 100p NC NC 100p 100p 100p 100p 100p 100p 100p 100p
198
3
2
TP709 TP709
5VA_RX 5VA_RX
5VA_RX
C717 C717
Q702 Q702 U703 U703
470p 470p 2SC4617 2SC4617 POWER IC POWER IC
1 3 5 4
Vout Vin
2
R708 R708 Vss
4.7k 4.7k
1 3
Nc CE
+ + C726 C726
C727 C727
10u/16v 10u/16v
470p 470p
3V3D
TP710 TP710
3V3A_RX 3V3A_RX U702 U702
3V3A_RX
3V3D_RX
R730 R730 R726 R726 POWER IC POWER IC
NC NC NC NC
2 1 5 1
VOUT VDD
2
L712 L712 GND
4 3
601S 601S
NC CE
R731 R731 R729 R729
C754 C754
0 0 0 0
1u 1u
19.2_AD9864
DESIGNER YYF
Title Title Title
<Title> <Title> <Title>
Size Size Size Document Number Document Number Document Number
C C C <Doc> <Doc> <Doc>
Date: Date: Date:
2
1
D
9V3A
L706 L706
601S 601S
R727 R727
C752 C752
+ +
47k 47k
10u/16v 10u/16v C746 C746
470p 470p
C
R728 R728
47k 47k
B
A
IF
Rev Rev Rev
<RevCode> <RevCode> <RevCode>
Wednesday, December 08, 2010 Wednesday, December 08, 2010 Wednesday, December 08, 2010 Sheet Sheet Sheet 13 13 13 of of of 14 14 14
1