Service manual
HT-DP2500
– 11 –
Figure 11 BLOCK DIAGRAM (2/2)
2
1
3
REMOCON
RX701
REMOTE
SENSOR
A+12V
C
561
J
M4558D
REAR
OUT
CENTER
L
R
O
UT
J581
HEADPHONES
V
U
T
SUB WOOFER
2
5
1
+B1
3
–B1
5
1
10
+B1
3
IC701
LM2876
POWER AMP.
IC702
LM2876
POWER AMP.
IC703
LM2876
POWER AMP.
IC704
LM2876
POWER AMP.
IC705
LM2876
POWER AMP.
–B1
8
5
1
+B1
3
–B1
8
T.F
F811
800mA
L-CH IN
5
1
10
+B1
3
–B1
8
REAR-OUT
5
1
+B1
3
–B1
8
+
L-CH OUT
R-CH OUT
+
+
+
–
GND
–
GND
–
GND
–
GND
FRONT
L-CH
SO701
SPEAKER
TERMINAL
FRONT
R-CH
CENTER OUT
CENTER OUT
SUB WOOFER
R-CH IN
S/W IN
CENTER IN
REAR-IN
D630
7
4
7
4
Q701
Q702
8
10
10
10
F-MUTE
Q751
Q752
7
4
S-MUTE
Q771
Q772
7
4
C-MUTE
Q781
Q782
7
4
R-MUTE
D621-D624
VOLTAGE
REGULATOR
Q621
Q622
VOLTAGE
REGURATER
A-12V
Q611
T.F
T601
AC POWER
SUPPLY CORD
AC 120V 60Hz
D601–D604
Q603
Q602
VOLTAGE
REGULATOR
Q601
µ-COM5V
A+12V(ANALOG)
1 2 3 4
5 6 7
8 9
10
11 12
13 14
15
16
17
18
19
20
21
22 23
24
25
26
27
28
29
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
65
66
67 68
69 70
71
72
73 74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
TUN-DO
TUN-DI
TUN-CK
TUN-CE
TUN-MUTE
TUN-SD
TUN-ST
VDD
OSC2
OSC1
VSS
XI
XO
MMOD
VREF
KEY1
KEY2
KEY3
AREA
SP-LEVEL
MODEL
POSISTER
RESET
V-DATA
POW-SW
R-RLAY
C-RLAY
PROTECT
FAN
LED1
1G
2G
3G
4G
5G
6G
7G
8G
9G
10G
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P14
P15
P16
NC
NC
NC
NC
DAPD
ADPD
AC3-RES
AC3-SS
AC3-SI
D-SEL
AC3-SCK
SW-ON
PRO-ENA
PRO-DI
PRO-CK
V-SW1
V-SW2
V-MUTE
SW-RLAY
FA-RLAY
SW-MUTE
C-MUTE
R-MUTE
F-MUTE
JOG DOWN
JOG UP
REMOCON
AC3-SO
SYS-STOP
POWER
V-CK
V-LACH
FS-CK
FS-DATA
FS-STB
VREF+
ALC
SW2-SW8
SW9-SW15
KEY MATRIX
LED1
STAND-BY LED
LED2
TIMER LED
SW23
JOG
SW1
POWER
Q6
RESET
µ-COM+5V
Q7
Q8
ZD1
P13
VPP
VF1
(AC)
VF2
(AC)
VF1
(AC)
VP
VF2
(AC)
+
–
–
+
L-CH
GND
GND
R-CH
S0702
REAR
SPEAKER
TERMINAL
IC1
IX0001SJ
SYSTEM
MICROCOMPUTER
A
Y
OVER CURRENT
DETECTOR
OVER CURRENT
DETECTOR
SWITCHING
Q784
Q785
Q786
SUB WOOFER OUT
Q705
Q707
Q708
OVER CURRENT
DETECTOR
SWITCHING
OVER CURRENT
DETECTOR
SWITCHING
OVER CURRENT
DETECTOR
SWITCHING
Q706
Q754
Q774
Q775
Q776
Q755
Q756
SPSWA
SPSWB
POW-1
POW-2
RLY601
POWER SW
T801
POWER
TRANSFORMER
SWITCHING
F801
3A