Sharp HT-DP2500W Service Manual page 21

SW1
ON STAND-BY
3 34 35 36 37
38
SWITCH PWB-C5
TIMER ON:( )
TIMER LED
Q10
KRC102 M
LED2
L1154HDB
0.8V(–2.1V) 5V(0V)
3 2
R42
1K
1
0V
R41
1K
PROTECT
R40
1K
5 54 53 52 51
HEADPHONE USE:( )
0V
50
0V(5V)
B) 49
SPSWA
R38
4.8V
NC(SW_RLAY)
48
1K
4.8V
NC(C_RLAY) 47
4.8V
NC(R_RLAY)
46
0V
45 R33
NC
1K
4.6V
POW_SW
44
4.8V
FA_RLAY 43 R31
1K
4.8V
SW_MUTE 42
0V
R30
41
C_MUTE
1K
4.8V
R29
R_MUTE 40
1K
4.8V
R28
39
F_MUTE
1K
4.8V
R27
JOG_DOWN 38
1K
4.8V
R26
R
37
JOG_UP
1K
5.1V
R25
REMOCON
36
1K
0.2V
AC3_SO 35 R23
1K
5V
SYS_STOP
34
5.3V
R22
POWER 33
A
1K
0V R21
32
STB) V_DATA
1K
0V
R20
3 1
V_CK
1K
0V
V_LATCH 30
R19
0V
NC(FS_CK)
29
1K
0V
28
0V
27
R15
5V 1K
26
1 22 23 24 25
0V
R14
1K
C2
0.022
R66
R65
10K
10K
1 2 3 4 5 6
1 2 3 4 5 6
7
1 1 1
C20
2 2 2
0.47/50
3 3 3
4 4 4
STAND-BY LED
R169
LED1
1K
L1154HDB
D7
1N4148
R88 R90
47K 47K
D6
1N4148
R138
1K
Q13
KRC102 M
5.1V
0V (0V)
3
2
1 0V
C6
22/50
7 8
BI4
CNS4
7 8
CNP4 TO POWER A PWB
P15 7-H
8
Figure 17 SCHEMATIC DIAGRAM (6/7)
R120 R121
1.8K 1.8K
KEY1
SW2 SW3
TIMER DOLBY
/SLEEP PROLOGIC
KEY2
R126 R127
1.8K 1.8K
C11
SW9 SW10
0.001
MEMORY
TUNING
/SET
UP
C
A
SW23
JOG VR1
DIAL
50K(B)
B
SUB-WOOFER
VOLUME
C10
0.001
Q11
KTC3199 GR
0V
0V Q12
KRC102 M
R156
4.7K
3
2
R157
0V
0V
10K
1
R158
22K
3
IC1
BYPASS
4.8V
WIDE NORMAL
4.8V
PHANTOM
4.5V
KRA102 M
5V BACK UP
RESET
Q6
KRC102 M C14
3.3/50
3
2
5V 0V
R139
1K
1
9 10
– 17 –
R122 R123 R124 R125
2.7K 3.9K 5.6K 10K
SW4 SW5 SW6 SW7
EQUALIZER X-BASS ENTER VOLUME
DOWN
R129 R130 R131
R128
3.9K 5.6K 10K
2.7K
SW12
SW11 SW13 SW14
TUNING
TUNER
CD/AUX
VCR-2
DOWN
(BAND)
Q4 Q3 Q2
3 3
2 1 2 1 2 1
42 IC1 41 IC1 40
0V 0V 0V 5V 0V
0V 0V 5V
0V 0V 4.8V 0V 0V 0V
4.8V 0V
0V 0V 0V
5V 0V 4.8V 0V 0V
Q4
R154
3 2 1K
Q3
KRA102 M
R153
1
1K
2
Q2
3
KRA102 M
R152
1
2 1K
3
1
2
3
Q1
1
KRA102 M
ZD1
R142
D4
1N4148
1K MTZJ3.9B
RX1
R143
R144 REMOTE
10K
10K SENSOR
0.2V
Q7
KTC3199 GR
1 2 3
1.0V
0.2V
Q8 5.1V
KTC3199 GR
R145 R147
82 1K
11
HT-DP2500W
SW8
VOLUME
UP
TO MAIN PWB
P13 12-G
SW15
CNP5
VCR-1
CNS5
1 1
2 2
3 3
FUN_SW
PROTECT
SPSWA
Q1
3
2 1
IC1 39
0V 0V
4.8V
0V 0V
4.5V
4.8V 0V 0V
SW_MUTE
C_MUTE
R_MUTE
R151
F_MUTE
1K
V_DATA
V_CK
V_LATCH
POSISTOR
SP_LEVEL
D3
1N4148
12