Sharp HT-DD5000W Service Manual page 16

75 74 73 72 71
P13
76
P14
77
78
P15
79 P16
80
NC
81
NC
82 NC
83
NC
84 DAPD
AD RESET
85
ADPD
AC3-RES
86 AC3–RES
AC3-SS
87 AC3–SS
AC3-SI
88 AC3–SI
D-SEL
89 D–SEL
AC3-SCK
90 AC3–SCK
SW-ON
91
SW–ON
DEM0
92
PRO–ENA
DEM1
93 PRO–DI
AC3-SO
94
PRO–CK
95 V–SW1
V–SW2
96
97 V–MUTE
DEM0
98
DEM1
99
VPP
100
1 2 3 4 5 6 7 8
SWITCHING
Q9
BUFFER AMP.
IC408
NJM4565M
A+12V
8
3 1 OUT
5 7
IN
4
A–12V
R_MUT
BUFFER AMP.
IC407
NJM4565M C_MUT
A+12V
8
3 1
5 7
OUT
IN
4
A–12V
SW_MUTE
BUFFER AMP.
IC406
NJM4565M
A+12V
8
OUT
3 1
7
5
IN
4
A–12V
F_MUT
SWITCHING
HP_MUTE
Q413
Q414
HEADPHONE
AMP.
IC581
NJM4565D
A+12V
8
OUT
3 1
5
7
IN
4
A–12V
FL1
DISPLAY
69 68 67 66 65 64 63 62 61 60 59
70 58 57 56 55
IC1
IX0004SJ
SYSTEM
MICROCOMPUTER
9 10 11 12 13 14 15 16 17 18 19 20 21 22
BACK UP
SWITCHING
Q1~Q4
µ–COM25V
REAR2 L,R
Q411
Q412
SWITCHING
SWITCHING
Q409
CENTER
TO POWER AMP. SECTION
S_WOOFER
Q410
SWITCHING
FRONT L,R
Q407
Q408
SWITCHING
J581
HEADPHONES
Figure 15 BLOCK DIAGRAM (5/5)
VF1 VF2
(AC) (AC)
FAN
PROTECT
54 53 52 51
50
SPSWB
49
SPSWA
48
SW–RLAY
POWER
C–RLAY 47
46
R–RLAY
HP MUTE 45
POW–SW 44
FA–RLAY 43
SW–MUTE 42
C–MUTE
41
R–MUTE 40
F–MUTE 39
JOG DOWN 38
JOG UP
37
REMOCON
36
AC3–SO 35
SYS–STOP 34
POWER
33
V–DATA
32
V–CK
31
V–LACH
30
FS–CK
29
FS–DATA
28
FS–STB
27
RESET
26
23 24 25
Q11
Q12
SWITCHING
TO POWER AMP. SECTION
SPEAKER A,B SW
– 15 –
Q10
µ–COM25V
STAND–BY LED
JOG
LED1
SW1 SW23
TIMER LED
LED2
REMOCON
1
Q6
Q13
RESET
TO POWER AMP SECTION
TO POWER SECTION
M671
M
Q671
FAN
Q672
MOTOR
HT-DD5000W
KEY MATRIX
SW4–SW8
SW9–SW15
SW16–SW19
Q7 µ–COM25V
Q8
ZD1
RX1
REMOTE 3
SENSOR
2