Sharp HT-SL70 (serv.man3) Service Manual ▷ View online
HT-SL70
2 – 1
CD-ES700/CD-ES77
CD-ES700/CD-ES77
Service Manual
CD-ES700/CD-ES77
Market
E
CHAPTER 2. MECHANISM DESCRIPTION
[1] Disassembly
Caution On Disassembly
Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit.
2. Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing
excellent performance:
1. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit.
2. Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were before disassembling.
Figure 3
Figure 4
Figure 2
SMPS PWB
HDMI PWB
(E1) x 4
M3 x 8mm
M3 x 8mm
Main PWB
(C2) x 2
(C1) x 4
Special Screw
Special Screw
(D1) x 1
Special Screw
(B3) x 2
Special Screw
Main Chassis
STEP
FIGURE
PROCEDURE
REMOVAL
1
Main Chassis
1. Screw.........................
2. Screw.........................
3. Socket........................
2. Screw.........................
3. Socket........................
(A1)x5
(A2)x4
(A3)x1
(A2)x4
(A3)x1
1
1
2
1
2
3
SMPS PWB
1. Screw.........................
2. Socket........................
2. Socket........................
(C1)x4
(C2)x2
(C2)x2
3
4
Main PWB
1. Screw......................... (D1)x1
3
5
HDMI PWB
1. Screw......................... (E1)x4
4
6
Subwoofer
1. Net Frame Ass'y ........
2. Screw.........................
2. Screw.........................
(F1)x1
(F2)x4
(F2)x4
5
2
Rear Panel
with HDMI PWB
with HDMI PWB
1. Screw.........................
2. Screw.........................
3. Screw.........................
4. Socket........................
5. AC Cord.....................
2. Screw.........................
3. Screw.........................
4. Socket........................
5. AC Cord.....................
(B1)x4
(B2)x2
(B3)x2
(B4)x1
(B5)x1
(B2)x2
(B3)x2
(B4)x1
(B5)x1
2
2
3
2
2
2
3
2
2
CAUTION:
TO REMOVE SPEAKER UNIT, PRESS THESE LOCKING TABS
TO RELEASE SPEAKER WIRES.
SPEAKER UNIT
LOCKING TAB
LOCKING TAB
SPEAKER
WIRE
Wooden Box Ass’y
(B5) x 1
Main Chassis
(A3) x 2
HDMI PWB
Subwoofer
(F2) x 4
M4 x 16mm
M4 x 16mm
Figure 5
(F1) x 1
Net Frame Ass’y
Net Frame Ass’y
(B1) x 4
M3 x 6mm
M3 x 6mm
(B2) x 2
M3 x 10mm
M3 x 10mm
(B4) x 1
SMPS PWB
Rear Panel
Main PWB
Wooden Box Ass’y
(A1) x 5
M4 x 10mm
Rear Panel
(A2) x 4
M3.5 x 12mm
M3.5 x 12mm
Figure 1
HT-SL70
3 – 1
CHAPTER 3. MAJOR PART DRAWING
[1] Function Table Of IC
IC501 RH-IXA318AW00 : System Microcomputer (IXA318AW) (1/3)
Pin
No.
No.
NAME
INPUT /
OUTPUT
FORM
SOFT
PULL-UP
FUNCTION OUTLINE
PORT_TYPE
1
SCL
OUTPUT
CMOS INPUT/
OUTPUT
OFF
I2C SERIAL CLOCK BUS LINE
P3_5 / SCL / SSCK / (TRCIOD)
2
DIR_CKSEL
OUTPUT
CMOS INPUT/
OUTPUT
OFF
Selection of system clock source,
Low: PLL (VCO) clock, High: XTI clock
Low: PLL (VCO) clock, High: XTI clock
P3_4 / TRAO / SSO / RXD1 / (TXD1)
3
RESET
INPUT
INPUT
OFF
Reset Input. Active "L"
For MICOM reflash. Need 10k Pull-up
For MICOM reflash. Need 10k Pull-up
RESET
4
NO USE
OUTPUT
CMOS INPUT/
OUTPUT
OFF
Connect to VCC with 10k
resistor
XOUT / XC OUT / P4_7
5
GND
---
---
OFF
GND
VSS / AVSS
6
NO USE
INPUT
CMOS INPUT/
OUTPUT
OFF
Connect to VCC with 10k
resistor
XIN / XCIN / P4_6
7
VCC
---
---
OFF
Supply input to micom (3.3V)
VCC / AVCC
8
MODE
INPUT
INPUT
OFF
Connect to VCC with 10k
resistor
MODE
9
SYS_PROTECT
INPUT
INPUT
OFF
POWER SUPPLY ABNORMAL DETECTION
H : NORMAL , L : ABNORMAL
H : NORMAL , L : ABNORMAL
P3_4 / INT0 / (RXD1)
10
NO USE
OUTPUT
CMOS INPUT/
OUTPUT
OFF
Set 'L'
P1_7 / TRAIO / INT1
11
HDMI_INT
INPUT
CMOS INPUT/
OUTPUT
OFF
HDMI MODULE INTERRUPT DETECTION
H -> L
H -> L
P3_6 / (TRD1) / (RXD1) / (INT1)
12
HDMI_RST
OUTPUT
CMOS INPUT/
OUTPUT
OFF
HDMI MODULE RESET CONTROL
H : NORMAL , L : RESET
H : NORMAL , L : RESET
P3_1 / TRBO
13
AMP_OTW
INPUT
CMOS INPUT/
OUTPUT
OFF
AMPLIFIER OVERTEMPERATURE WARNING
DETECTION
H : NORMAL , L : ABNORMAL
DETECTION
H : NORMAL , L : ABNORMAL
P5_4 / TRCIOD
14
AMP_SD
INPUT
CMOS INPUT/
OUTPUT
OFF
AMPLIFIER SHUTDOWN DETECTION
H : NORMAL , L : ABNORMAL
H : NORMAL , L : ABNORMAL
P5_3 / TRCIOC
15
DIR_RST
OUTPUT
CMOS INPUT/
OUTPUT
OFF
DIR RESET CONTROL
H : NORMAL , L : RESET
H : NORMAL , L : RESET
P1_6 / CLK0 / (SSI)
16
DIR_ERROR
INPUT
CMOS INPUT/
OUTPUT
OFF
DIR ERROR DETECTION
H : ERROR , L : NORMAL
H : ERROR , L : NORMAL
P1_5 / RXD0 / (TRAIO) / (INT1)
17
DIR_AUDIO
INPUT
CMOS INPUT/
OUTPUT
OFF
DIR CHANNEL-STATUS DATA INFORMATION
H : OTHER , L : LINEAR PCM
H : OTHER , L : LINEAR PCM
P1_4 / TXD0
18
DIR_FSOUT0
INPUT
CMOS INPUT/
OUTPUT
OFF
DIR CALCULATED SAMPLING FREQUENCY OUT-
PUT 0
PUT 0
P1_3 / KI3 / AN11 / (TRBO)
19
DIR_FSOUT1
INPUT
CMOS INPUT/
OUTPUT
OFF
DIR CALCULATED SAMPLING FREQUENCY OUT-
PUT 1
PUT 1
P1_2 / KI2 / AN10 / TRCIOB
20
VREF
---
---
OFF
Reference Voltage for A/D converter
VREF / P4_2
21
DAP_MUTE
OUTPUT
CMOS INPUT/
OUTPUT
OFF
DAP MUTE CONTROL
H : OFF , L : ON
H : OFF , L : ON
P1_1 / KI1 / AN9 / TRCIOA /
TRCTRG
TRCTRG
22
DAP_PWN
OUTPUT
CMOS INPUT/
OUTPUT
OFF
DAP POWER DOWN CONTROL
H : NORMAL , L : POWER DOWN
H : NORMAL , L : POWER DOWN
P1_0 / KI0 / AN8
23
DAP_RST
OUTPUT
CMOS INPUT/
OUTPUT
OFF
DAP RESET CONTROL
H : NORMAL , L : RESET
H : NORMAL , L : RESET
P3_3 / INT3 / SSI / TRCCLK
24
SDA
INPUT /
OUTPUT
CMOS INPUT/
OUTPUT
OFF
I2C SERIAL DATA BUS LINE
P3_4 / SDA / SCS / (TRCIOC)
25
DC_RELAY
OUTPUT
CMOS INPUT/
OUTPUT
OFF
DC RELAY CONTROL
H : ON , L : OFF
H : ON , L : OFF
P0_7 / AN0
26
NO USE
OUTPUT
CMOS INPUT/
OUTPUT
OFF
P0_6 / AN1
HT-SL70
3 – 2
IC501 RH-IXA318AW00 : System Microcomputer (IXA318AW) (2/3)
Pin
No.
No.
NAME
INPUT /
OUTPUT
FORM
SOFT
PULL-UP
FUNCTION OUTLINE
PORT_TYPE
27
LED RED
OUTPUT
CMOS INPUT/
OUTPUT
OFF
LED indicator.
STANDBY condition: H
STANDBY condition: H
P0_5 / AN2 / CLK1
28
LED BLUE
OUTPUT
CMOS INPUT/
OUTPUT
OFF
LED indicator.
ON condition: H
ON condition: H
P0_4 / AN3 / TREO
29
HDMI_CE2
OUTPUT
CMOS INPUT/
OUTPUT
OFF
HDMI Module Supply Control 1.8V
P0_3 / AN4
30
AREA
INPUT
CMOS INPUT/
OUTPUT
OFF
H' : SL50
'L' :SL-70
'L' :SL-70
P0_2 / AN5
31
KEY
INPUT
CMOS INPUT/
OUTPUT
OFF
When "L": Enter version check mode
During version check mode "L" : CLEAR ALL
During version check mode "L" : CLEAR ALL
P0_1 / AN6
32
LEV_DET
INPUT
CMOS INPUT/
OUTPUT
OFF
Audio signal level detection
P0_0 / AN7 / (TXD1)
HT-SL70
3 – 3
IC501 RH-IXA318AWZZ : System Microcomputer (IXA318AW) (3/3)
Figure 3-1 Block Diagram of IC
LE
V
_D
E
T
KEY
AR
EA
HDM
I_
C
E
2
LE
D B
LUE
LE
D RE
D
NO US
E
DC_
R
EL
AY
32
31
30
29
28
27
26
25
P
0_0 / A
N
7 / (T
X
D
1)
P0
_1
/ AN
6
P0
_2
/ AN
5
P0
_3
/ AN
4
P0
_4
/ AN
3 /
T
R
EO
P
0_5 / A
N
2 / CLK
1
P0
_6
/ AN
1
P0
_7
/ AN
0
SCL
1
)
C
O
I
C
R
T
(
/
S
C
S
/
A
D
S
/
4
_
3
P
)
D
O
I
C
R
T
(
/
K
C
S
S
/
L
C
S
/
5
_
3
P
24
SDA
DIR_CKSEL
2
P3_4 / TRAO / SSO / RXD1 / (TXD1)
P3_3 / INT3 / SSI / TRCCLK 23
DAP_RST
RESET
3
RESET
P1_0 / KI0 / AN8 22
DAP_PWN
NO USE
4
G
R
T
C
R
T
/
A
O
I
C
R
T
/
9
N
A
/
1
I
K
/
1
_
1
P
7
_
4
P
/
T
U
O
C
X
/
T
U
O
X
21
DAP_MUTE
GND
5
VSS / AVSS
VREF / P4_2 20
VREF
NO USE
6
XIN / XCIN / P4_6
P1_2 / KI2 / AN10 / TRCIOB 19
DIR_FSOUT1
VCC
7
VCC / AVCC
P1_3 / KI3 / AN11 / (TRBO) 18
DIR_FSOUT0
MODE
8
MODE
P1_4 / TXD0 17
DIR_AUDIO
P
3_4 / INT
0 / (
R
X
D
1)
P
1_7 / T
R
A
IO / IN
T1
P3
_6
/ (
TR
D
1)
/
(R
X
D
1) / (IN
T1)
P
3_1 / TR
B
O
P5
_4
/ T
R
C
IO
D
P5
_3
/ T
R
C
IO
C
P
1_6 / CLK
0 / (
S
S
I)
P
1_
5 /
RX
D0
/
(TR
A
IO) / (IN
T1)
9
10
11
12
13
14
15
16
SYS_
PR
O
TEC
T
NO US
E
HDM
I_I
NT
HDM
I_
R
S
T
AM
P_
O
TW
AM
P_
SD
DIR_
RS
T
DIR_
E
R
ROR
SHARP
IXA318A
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