Service manual
HT-DP2500W
– 16 –
A
B
C
D
E
F
G
H
1
23456
Figure 16 SCHEMATIC DIAGRAM (5/7)
NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
R65
10K
R162
47K
VCR-1,STANDBY:( )
Q5
KRA102 M
C5
1000/6.3
C7
1/50
IC1
IX0001SJ
SYSTEM MICROCOMPUTER
100
99
98
100
99
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
8
1
8
0
7
9
78
77
76
76
50
R_MUT
E
28
27
26
R10
1K
R9
1K
R8
1K
R56
1K
R58
10K
R59
10K
R60
10K
R4
1K
R3
1K
R2
1K
R1
1K
R6
1K
R5
1K
R43
1K
R52
1K
R53
1K
R51
1K
R163
10K
R164
10K
R165
10K
R92
47K
R73
47K
R74
47K
R69
47K
R71
47K
R70
47K
R72
47K
L1
100µH
C3
22P
C4
22P
XL1
32.768kHz
C1
0.022
C9
1/50
R13
1K
R12
1K
R11
1K
R
1
C2
0.022
FL1
FL DISPLAY
KEY1
KEY2
KEY3
P16
P16
P15
P15
P14
P14
P13
P13
P12
P11
P11
P10
P10
P9
P9
P8
P8
P7
P7
P6
P6
P5
P5
P4
P4
P3
P3
P2
P2
P1
P1
10G
10G
9G
9G
8G
8G
7G
7G
6G
6G
5G
5G
4G
4G
3G
3G
2G
2G
1G
1G
F2
F1
F1
LED1
V_MUTE
PRO_ENA
PRO_CK
PRO_DI
TUN_ST
P
POSISTOR
SW_MUT
E
C_MUT
E
JOG_U
P
JOG_DOW
N
TUN_DO
TUN_CK
ALC
MODEL
SP_LEVEL
AREA
VREF–
MMOD
OSC1
OSC2
V_DAT
A
V_C
K
V_LATC
H
RESET
TUN_MUTE
TUN_SD
F_MUT
E
POWE
R
SYS_STO
P
REMOCO
N
VDD
KEY3
KEY2
KEY1
VSS
XO
XI
75 74 73
7
2
7
1
70
69 68
67
66
65
64
6
3
6
2
1
6
6
0 59
58
57
56
55
54 53 52
51
25
24
23
22
21
20
19
18
17
16
15
14
1312
11
10
9
8
7
6
5
4 3 2 1
2
1
0
2 19
18
17
16
15
14
1312
11
1
0
9
8
7
6
5
4 3 2 1
25
24
3 2
2
2
37
36
35
30
29
28
27
26
34
33
32
31
VREF+
0
5V
0V
0V
0V
0V
0V
5V
5V
5V
0V
0V
1.9V
2.5V
2.5V
0V
4.9V
4.9V
4.9V
XL2
8MHz
R7
1K
2.2V
4.8V
0V
4.8V
0V
0.2V
NC(VPP)
-33V
4.8V
4.8V
0V
4.8V
–32.6V
–32.6V
–28.8V
–28.8V
–28.8V
–24.2V
–20.4V
–24.2V
–24.2V
–24.2V
–28.8V
–24V
–24.2V
–24.2V
–28.8V
P12
–32.6V
–28.8V
–28.8V
–28.8V
–28.8V
–28.8V
–28.8V
–28.8V
0.8V(–2.1V)TIMER ON:( )
0V
–28.8V
–28.8V
–28.8V
FAN
1
3
2
5V
5V(0V)
0.8V(–2.1
V
NC(NP)
NC(NP)
NC(NC)
NC(NC)
NC(NC)
NC(NC)
NC(NP)
NC(NP)
C8
1/50
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
4
1
1
5
6
1
7
1
8
1
1
9
CNP1A
DISPLAY PWB-C1
NC(SPSWB)
SPSW
A
NC(SW_RLA
Y
NC(C_RLAY
)
NC(R_RLAY
)
POW_S
W
FA_RLA
Y
AC3_S
O
NC(FS_CK
)
NC(FS_STB)
FS_DATA
DEM0
TUN_DI
NC(DEM1)
V_SW1
V_SW2
NC(SW_ON)
NC(AC3_SCK)
NC(D_SEL)
NC(AC3_SI)
NC(DAPD)
NC(ADPD)
NC(AC3_RES)
NC(AC3_SS)
0
2
2
1
2
2
3 2
0V(5V)
PRO_DI
SPSWA
TUN_ST
TUN_SD
TUN_CE
TUN_MUTE
TUN_CK
TUN_DI
TUN_DO
FUN_SW
PROTECT
SW_MUTE
C_MUTE
R_MUTE
F_MUTE
V_DATA
V_CK
V_LATCH
POSISTOR
SP_LEVEL
V_MUTE
PRO_CK
CNPB1
TO MAIN PWB
P12 1-C
PRO_ENA
FC1
TUN_CE
5V
23
1
R62
12K
R61
10K
NC
NC
NC
NC
NC
N
C