Table of Contents
Advertisement
HT-DP2500W
FM SIGNAL
A
MAIN PWB-A1(2/2)
R701
C701
1K
220P
FRONT_L
1
FL_GND
2
B
F_MUTE
3
R724
4.7K
R702
C702
1K
FRONT-R
220P
4
C
FR_GND
5
R741
C741
1K
220P
SW
6
D
SW_GND
7
R753
4.7K
SW_MUTE
8
C745
47/50
E
R761
C761
1K
220P
CENTER
9
C_GND
10
R773
C_MUTE
4.7K
11
F
C765
22/50
R781
C781
1K
220P
REAR
12
G
R_GND
13
R793
R_MUTE
4.7K
14
C785
22/50
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
1
Q705
IC701-IC705
KTC3199 GR
POWER AMP.
0V
0V
R717
11
6.8K
0V
2.9V
10
1
0.022
0V
R715
IC701
2
9
2.2K
0V
–3.2V
8
LM2876
3
0V
–2.9V
R713
4
7
0.2
2.9V
6
5
Q702
Q701
R719
KRC107 M
KRA107 M
18K
R721
3
2
39K
3
2
0V
–3.2V
2.9V
OVER CURRENT
(3.4V)
(–0.4V)
1
1
(0V)
DETECTOR
0V
2.9V(0.9V)
(0V)
R720
Q706
KTC3199 GR
12K
C709
MUTE ON:( )
100/35
0V
0V
R718
11
2.9V
6.8K
0V
10
1
0V
C716
IC702
9
2
0.022
-3.2V
0V
LM2876
3
8
0V
-2.9V
R714
7
4
0.2
2.9V
5
6
C714
10/50
Q754
KTC3199 GR
OVER CURRENT
DETECTOR
0V
0V
R749
11
6.8K
0V
2.9V
10
1
0V
IC703
C748
9
2
0.022
0V
-3.2V
LM2876
3
8
0V
-2.9V
R747
7
4
0.2
6
5
2.9V
R751
39K
Q752
Q751
KRC107 M
KRA107 M
R754
100K
3
2 3
2
2.9V
–3.2V
0V
OVER CURRENT
(0V)
(3.4V)
(–0.4V)
1
1
DETECTOR
2.9V
0V
(0.9V)
(0V)
R752
Q774
KTC3199 GR
27K
MUTE ON:( )
0V
0V
R769
11
2.9V
6.8K
0V
10
1
0V
C768
IC704
9
2
0.022
0V
-3.2V
LM2876
3
8
0V
R767
7
4
0.2
-2.9V
6
5
2.9V
R771
39K
Q772
Q771
KRC107 M
KRA107 M
R774
2 3
2
100K
3
2.9V
0V
–3.2V
R772
OVER CURRENT
(0V)
(3.4V)
(–0.4V)
27K
1
1
2.9V
DETECTOR
0V
(0.9V)
(0V)
Q784
KTC3199 GR
MUTE ON: ( )
0V
0V
R789
11
2.9V
6.8K
0V
10
1
IC705
C788
0V
9
2
0.022
LM2876
0V
-3.2V
8
3
-2.9V
0V
R787
4
7
0.2
6
5
2.9V
MUTE ON: ( )
R791
39K
Q782
Q781
KRA107 M
KRC107 M
R794
2 3
2
100K
3
2.9V
0V
–3.2V
R792
(0V)
(3.4V)
(–0.4V)
1
27K
1
2.9V
0V
(0.9V)
(0V)
2
3
Figure 14 SCHEMATIC DIAGRAM (3/7)
OVER CURRENT
L701
DETECTOR
0.3mH
5.0V
R727
D701
1N4148
22
D703
R725
22
1N4148
C715
R729
56K
0V
0V
Q707
5V
KTC3199 GR
0V
Q708
KTC3199 GR
0V
C717
47/50
D702
L702
1N4148
0.3mH
5.0V
R728
22
R726
22
R716
2.2K
L703
0.3mH
5.0V
D704
R757
1N4148
22
R756
D705
22
1N4148
R748
5.0V
2.2K
R758
0V
56K
0V
Q755
5.0V
KTC3199 GR
0V
0V
Q756
KTC3199 GR
C749
47/50
D706
L704
1N4148
0.3mH
5.0V
R777
22
R776
22
R768
5.0V
2.2K
R778
0V
56K
0V
Q775
5.0V
KTC3199 GR
0V
Q776
KTC3199 GR
0V
L705
D708
0.3mH
1N4148
5.0V
R797
22
R796
D709
1N4148
22
R788
5.0V
2.2K
R798
0V
56K
0V
Q785
5.0V
KTC3199 GR
0V
Q786
0V
KTC3199 GR
C789
47/50
4
– 14 –
C719
0.1
C721
0.1
R733
4.7
C720
0.1
C722
0.1
R734
4.7
C750
0.1
C751
0.1
R760
4.7
C770
0.1
C771
0.1
R780
4.7
C790
0.1
C791
0.1
R795
4.7
15
16 17 18 19 20
21
P13 12-B
5
Q622
–B
2SD201
10.9V
+B
11.6V
C624
D62
47/25
1N41
POWER SU
Z
MTZ
R617
220
–25V
R616
220
SWITC
Q603
KTC31
0.77
1
2 3 4
5 6
CNP4
6
Hide quick links:
Advertisement
Table of Contents
