Sharp SD-EX220 (serv.man2) Service Manual ▷ View online
SD-EX220H
8 – 8
IC701 RH-iX0557AWZZ: System Microcomputer (IX0557AW) (2/2)
Pin No.
Port Name
Terminal Name
Input/Output
Function
96
PB0/SCLK12/SVIN/DA
ILU_LED
Output
Illumination LED.
97
AVSS
AVSS
Input
A/D analog GND.
98
VREF
VREF
Input
A/D reference voltage 5 V.
99
PA7/AN7
INI
Input
A/D input, destination setting input.
100
PA6/AN6
KEY1
Input
A/D input, main set key.
1
PA5/AN5
2
PA4/AN4
3
PA3/AN3
4
PA2/AN2
5
PA1/AN1
6
PA0/AN0
7
P97/BUZ02/
AN15
8
P96/PWM0/
AN14
9
P95/RTP0/
AN13
10
P94/RTP1/
AN12
11
P93/SRDY3/
AN11
12
P92/SCLK3/
AN10
13
P91/SOUT3
/AN9
14
P90/SIN3/
AN8
15
P83/CNTR0/
CNTR2
16
P82/CNTR1
17
CNVSS
18
RESET
19
P81/XCOUT
20
P80/XCIN
21
VSS
22
XIN
23
XOUT
24
VCC
25
P77/INT4/
BUZ01
26
P76/T3OUT
27
P75/T1OUT
28
P74/PWM1
29
P73/INT3/
DIMOUT
30
P72/INT2
KEY2
KEY3
TUN SM
(DAC DATA)
(DAC CLOCK)
PROTECT
MOT LOCK
O/C SW
H/P SW
FAN-LOCK
FAN-CHK
POWER-LEVEL 1
POWER-LEVEL 2
+B CHK
S MUTE
TIMER STBY
CNVSS
VPP(FLASH)
RESET
SP RELAY
POWER
VSS
VSS(FLASH)
XIN
XOUT
VCC
VCC(FLASH)
NO USE
CD FUNC
DIG FUNC
A/D RESET
NO USE
RX-IN
80
DIG 9
79
SEG 1
78
SEG 2
77
SEG 3
76
SEG 4
75
SEG 5
74
SEG 6
73
SEG 7
72
SEG 8
71
SEG 9
70
SEG 10
69
SEG 11
68
SEG 12
67
SEG 13
66
SEG 14
65
SEG 15
64
SEG 16
63
SEG 17
62
SEG 18
61
SEG 19
60
SEG 20
59
SEG 21
58
SEG 22
57
SEG 23
OE(FLASH)
56
SEG 24
55
NO USE
54
NO USE
53
NO USE
52
NO USE
51
NO USE
P00/FLD8
P01/FLD9
P02/FLD10
P03/FLD11
P04/FLD12
P05/FLD13
P06/FLD14
P07/FLD15
P10/FLD16
P11/FLD17
P12/FLD18
P13/FLD19
P14/FLD20
P15/FLD21
P16/FLD22
P17/FLD23
P30/FLD24
P31/FLD25
P32/FLD26
P33/FLD27
P34/FLD28
P35/FLD29
P36/FLD30
P37/FLD31
P40/FLD32
P41/FLD33
P42/FLD34
P43/FLD35
P44/FLD36
P45/FLD37
31
SYS
STOP
P71/INT1
32
OFFSET
P70/INT0
33
CD
RESET
BUSY(FLASH)
P67/SRDY2/ SCLK22/FLD55
34
CD
CLK
SLCK(FLASH)
P66/SCLK21/ FLD54
35
CD
DI
P65/TXD/ FLD53
36
CD
CE
SDA(FLASH)
P64/RXD/ FLD52
37
CD
DO
P63/FLD51
38
CD
DRF
P62/FLD50
39
CD
WRQ
P61/FLD49
40
CE
P60/FLD48
41
CLK
P57/FLD47
42
DI
P56/FLD46
43
DO
P55/FLD45
44
EQ
CONT
P54/FLD44
45
40V
RELAY
P
53/FLD43
46
NO
USE
P
52/FLD42
47
NO
USE
P
51/FLD41
48
NO
USE
P
50/FLD40
49
NO
USE
P
47/FLD39
50
NO
USE
P
46/FLD38
PA6/AN6
KEY1
99
PA7/AN7
INI
98
VREF
VREF
97
AVSS
AVSS
96
PB0/SCLK12/
SVIN/DA
ILU
-LED
95
PB1/SRDY1
S
URROUND
94
PB2/SBUSY1
(DAC
M
L)
93
PB3/SSTB1
RDS
-RDY
92
PB4/SCLK11
RDS
-CLK
91
PB5/SOUT1
RDS
-DATA
90
PB6/SIN1
RDS
-RST
89
VEE
V
EE
88
P20/FLD0
DIG
1
87
P21/FLD1
DIG
2
86
P22/FLD2
DIG
3
85
P23/FLD3
DIG
4
84
P24/FLD4
DIG
5
83
P25/FLD5
DIG
6
82
P26/FLD6
DIG
7
81
P27/FLD7
DIG
8
IX0557AW
100
SD-EX220H
8 – 9
ICA100 RH-iX0498AWZZ: 7th Order
∆Σ Modulation Conversion LSI (IX0498AW)
In this unit, the terminal with asterisk mark (*) is (open) terminal whitch is not connected to the outside.
Pin No.
Terminal Name
Input/Output
Function
1
VDDL
Input
L channel digital output section power terminal.
2
OUTL (+)
Output
L channel forward output terminal.
3
TVDD
Output
L channel reverse output terminal.
4
GNDD
—
Digital output section ground terminal.
5
OUTR (–)
Output
R channel reverse output terminal.
6
OUTR (+)
Output
R channel forward output terminal.
7
VDDR
Input
R channel digital output section power terminal.
8
VDDX
Input
Oscillation section power terminal.
9
XI
Input
Quartz oscillator connection terminal. Clock necessary for the system is generated.
10
XO
Output
Quartz oscillator connection terminal. Clock necessary for the system is generated.
11
GNDX
—
Oscillation section ground terminal.
12*
MCK
Output
System clock output terminal.
13*
TEST
Input
Test terminal. As usual, it is used at "L".
14
NFR1 (+)
Input
R channel forward signal feedback input terminal.
15
NFR2 (–)
Input
R channel reverse signal feedback input terminal.
16
GNDA
—
Analog ground terminal for AD converter
17
Rch IN
Input
R channel analog input terminal.
18
Rch Vref
Input
Reference voltage terminal for R channel.
19
Lch Vref
Input
Reference voltage terminal for L channel
20
Lch IN
Input
L channel analog input terminal
21
RESET
Input
Reset terminal. It is reset with "L".
22
NFL2 (–)
Input
L channel reverse signal feedback input terminal.
23
NFL1 (+)
Input
L channel forward signal feedback input terminal.
24
VDDA
Input
Analog current terminal for AD converter.
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VDDL
VDDA
NFL1(+)
NFL2(-)
RESET
Lch IN
Lch Vref
Rch Vref
Rch IN
GNDA
NFR2(-)
NFR1(+)
TEST
OUTL(+)
OUTL(-)
GNDD
OUTR(-)
OUTR(+)
VDDR
VDDX
XI
XO
GNDX
MCK
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VDA
NFL1(+)
NFL2(-)
RESET
Lch
IN
Lch
Vref
Rch
Vref
Rch
IN
GNDA
NFR2(-)
NFR1(+)
TEST
VDDL
OUTL(+)
OUTL(-)
GNDD
OUTR(-)
OUTR(+)
VDDR
VDDX
XI
XO
GNDX
MCK
Comparator
Comparator
Amplitude Doubling
Converter
Amplitude Doubling
Converter
Oscillator
Lch 7th order
Modulation Circuit
Rch 7th order
Modulation Circuit
SD-EX220H
8 – 10
ICA101, ICA102 VHiSLA5515M-1: Switching Audio Power Amp. (SLA5515M)
Pin No.
Terminal Name
Function
1
SA
Output stage low-side source terminal.
2, 3
OUTA
Output stage switching output.
4, 5
VBBA
Output stage power supply.
6
VBOOTA
Bootstrap condenser terminal.
7, 8
DTADJA, DTADJB
Dead time adjusting terminal.
9
INA
Logic input.
10
VKK
Lowest potential terminal of controller.
11
VCC
Power supply to pre-driver.
12
VKK
Lowest potential terminal of controller.
13
INB
Logic input.
14
GND
Ground for controller.
15
VDD
Power supply to controller.
16
VBOOTB
Bootstrap condenser terminal.
17, 18
VBBB
Output stage power supply.
19, 20
OUTB
Output stage switching output.
21
SB
Output stage low-side source terminal.
VKK
VDD
INA
DTADJA
VKK
DTADJB
INB
GND
VCC
UVLO
Level
Down
COCD
Level
Down
COCD
+
-
-
x 4
VKK
+
x 4
Delay
L/S
Driver
VKK
VKK
Delay
L/S
Driver
H/S
Driver
Level
Up
H/S
Driver
Level
Up
ChB_LO
ChB_HO
ChB_LO
ChB_HO
L
P
F
P
F
L
P
F
P
F
VBOOTA
VBBA
OUTA
SA
VBOOTB
VBBB
OUTB
SB
SD-EX220H
PARTS GUIDE
NOTE:
Parts marked with “
” are important for maintaining the safety of the set.
Be sure to replace parts with specified ones for maintaining the safety and performance of the set.
“HOW TO ORDER REPLACEMENT PARTS”
To have your order filled promptly and correctly, please furnish the
following information.
following information.
1. MODEL NUMBER
2. REF. No.
3. PART NO.
4. DESCRIPTION
MARK: SPARE PARTS-DELIVERY SECTION
For U.S.A. only
Contact your nearest SHARP Parts Distributor to order.
For location of SHARP Parts Distributor,
Please call Toll-Free;
1-800-BE-SHARP
Please call Toll-Free;
1-800-BE-SHARP
Explanation of capacitors/resistors parts codes
Capacitors
VCC ....................... Ceramic type
VCK ........................ Ceramic type
VCT ........................ Semiconductor type
VCT ........................ Semiconductor type
VC • • MF ............... Cylindrical type (without lead wire)
VC • • MN ............... Cylindrical type (without lead wire)
VC • • MN ............... Cylindrical type (without lead wire)
VC • • TV ................ Square type (without lead wire)
VC • • TQ ............... Square type (without lead wire)
VC • • TQ ............... Square type (without lead wire)
VC • • CY ............... Square type (without lead wire)
VC • • CZ ............... Square type (without lead wire)
VC • • CZ ............... Square type (without lead wire)
VC • • • • • • • • • J .. The 13th character represents capacity difference.
("J"
±
5%, "K"
±
10%, "M"
±
20%, "N"
±
30%,
"C"
±
0.25 pF, "D"
±
0.5 pF, "Z" +80-20%.)
If there are no indications for the electrolytic capacitors, error is
±
20%.
Resistors
VRD ....................... Carbon-film type
VRS ........................ Carbon-film type
VRN ....................... Metal-film type
VRN ....................... Metal-film type
VR • • MF ............... Cylindrical type (without lead wire)
VR • • MN ............... Cylindrical type (without lead wire)
VR • • MN ............... Cylindrical type (without lead wire)
VR • • TV ................ Square type (without lead wire)
VR • • TQ ............... Square type (without lead wire)
VR • • TQ ............... Square type (without lead wire)
VR • • CY ............... Square type (without lead wire)
VR • • CZ ............... Square type (without lead wire)
VR • • CZ ............... Square type (without lead wire)
VR • • • • • • • • • J .. The 13th character represents error.
("J"
±
5%, "F"
±
1%, "D"
±
0.5%.)
If there are no indications for other parts, the resistors are
±
5%
carbon-film type.
1-BIT DIGITAL AUDIO SYSTEM
MODEL
SD-EX220H
SD-EX220H 1-Bit Digital Audio System consisting of
SD-EX220H (main unit) and CP-EX220H (speaker system).
SD-EX220H (main unit) and CP-EX220H (speaker system).
Click on the first or last page to see other SD-EX220 (serv.man2) service manuals if exist.