Sharp HT-SL50 User manual

HT-SL50
SOUND BAR HOME
THEATER SYSTEM
SERVICE MANUAL
No. S4107HTSL50HE
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
PRECAUTIONS FOR USING LEAD-FREE SOLDER
CHAPTER 1. GENERAL DESCRIPTION
[1] Safety Precaution For Service Manual ..........1-1
[2] Important Service Notes (for U.K. only).........1-1
[3] Specifications ................................................1-1
[4] Name Of Parts............................................... 1-2
CHAPTER 2. MECHANISM DESCRIPTION
[1] Disassembly .................................................. 2-1
CHAPTER 3. MAJOR PART DRAWING
[1] Function Table Of IC...................................... 3-1
CHAPTER 4. CIRCUIT DESCRIPTION
[1] Voltage .......................................................... 4-1
CHAPTER 5. DIAGRAM
[1] Block Diagram................................................5-1
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] Notes On Schematic Diagram .......................6-1
[2] Types Of Transistor And LED.........................6-1
[3] Schematic Diagram.........................................6-2
[4] Chart Of Connecting Wires.............................6-8
[5] Wiring Side Of PWB .......................................6-9
PARTS GUIDE
HT-SL50
MODEL
CONTENTS
SHARP CORPORATION
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
!
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified
be used.
HT-SL50 Sound Bar Home Theater system consisting of
Sound Bar and Subwoofer.

HT-SL50
– i –
PRECAUTIONSFOR USING LEAD-FREE SOLDER
1. Employinglead-free solder
Example:
Indicateslead-free solder of tin, silver and copper.
Lead-free wire solder for servicing
Ref No. Description PartsNo.
"MAIN, SMPS, HDMI PWB" of thismodel employslead-free solder. The LF symbol indicateslead-free solder, and
isattached on the PWB and service manuals. T h e alphabetical character following LF showsthe type of
lead-free solder.
2. Usinglead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional
lead wire solder may cause damage or accident due to cracks.
Asthe melting point of lead-free solder (Sn-Ag-Cu) ishigher than the lead wire solder by 40°C, we recommend
youto use adedicated soldering bit, if youare not familiar with how to obtain lead-free wire solder or soldering
bit, contact our service station or service branch in your area.
3.Soldering
Asthe melting point of lead-free solder (Sn-Ag-Cu) isabout 220°C which ishigher than the conventional lead
solder by 40°C, and as it has poor solder wet ability, youmay be apt to keep the soldering bit in contact with the
PWB for extended period of time. However, since the land may be peeled of for the maximum heat-resistance
temperature of partsmay be exceeded, remove the bit from the PWB as soon as youconfirm the steady
soldering condition.
Lead-free solder containsmore tin, and the end of the soldering bit may be easily corrected. Make sure to turn
on and off the power of the bit as required. If adifferent type of solder stayson the tip of the soldering bit, it is
alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit isblackened during use, file it with steel wool or fine sand paper.
Be careful when replacing partswith polarity indication on the PWB silk.
PWB-A 92LPWB8132MANSMAIN
PWB-B RUiTZA041AWZZ SMPS
PWB-C 92LPWB8131HDMSHDMI

HT-SL50
–2
CHAPTER 1: GENERAL DESCRIPTION
[3]Specifications
WARNING
Thisunit containsno user serviceable parts. Never remove coversunless qualified to do so.
Thisunit containsdangerous voltages, alwaysremove mainsplug from the socket before any service
operation and when not in use for along period.
General Soundbar speaker
Subwoofer
[2] Important Service Notes(for U.K. only)
[1] Safety Precaution For Service Manual
Before returning the unit to the customer after completion of arepair or adjustment it isnecessary for the following withstand voltage test to be
applied to ensure the unit issafe for the customer to use.
Setting of Withstanding Voltage Tester and set.
Set name set value
Withstanding Voltage Tester
Te st voltage 4,240 VPEAK
3,000 VRMS
Set time 6 secs
Set current (Cutoff current) 4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lightsand the buzzer sounds.
PROBE
AC
OUT
UNIT
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO SHELL OF AUDIO LINE IN
WITHSTANDING
VOLTAGE TESTER
Power source AC 220 - 240 V ~ 50/60 Hz
Power
consumption
Power On: 25 W
Power Stand-by: Below 1 W
Output power RMS:To t al 100 watts
RMS:
Front Left/Right:
RMS: 50W (25W + 25W) (10% T.H.D.)
RMS: 48W (24W + 24W) (1% T.H.D.)
Subwoofer:
RMS: 50W (10% T.H.D.)
RMS: 50W (1% T.H.D.)
Output
terminal
HDMI™ (with Audio Return Channel)
output: (audio/video support to 1080p)
x 1
Input
terminal
Analogue input (Audio in):
Stereo mini socket Ø 3.5 mm
HDMI input: (audio/video support to
1080p) x 1
Type Full Range speaker system
2.2 x 11.5 cm (7/8" x 4-1/2")
Full Range
Maximum
input power
50 W/CH
Rated input
power
25 W/CH
Impedance 4 ohms/CH (3piecesparallel)
DimensionsWidth: 801 mm (31-1/2")
Height: 26 mm (1-1/16")
Depth: 50 mm (2")
Weight 0.66 kg (1.46 lbs.)
Type Subwoofer system
16 cm (6 - 5/16") woofer
Maximum
input power
100 W
Rated input
power
50 W
Impedance 8ohms
DimensionsWidth: 115 mm (4 - 1/2")
Height: 422 mm (16 - 5/8")
Depth: 307 mm (12 - 1/16")
Weight 4.50 kg (9.92 lbs.)
1 – 1

HT-SL50
– 2
[4] Names Of Parts
Sound Bar
1. Left Front Speaker
2. Right Front speaker
3. Bass Reflex Duct
4. Right Front Speaker terminal (Red/Black)
5. Left Front Speaker terminal (White/Black)
Subwoofer
1. Stand-by Indicator
2. Bass Reflect Duct
3. Woofer
4. HDMI (TV ARC) Output Terminal
5. HDMI Input Terminal
6. AC Power Lead
7. Speaker Terminal
8. Audio In (TV) Terminal
8
7
2
3
6
5
4
ACTIVE SUBWOOFER SYSTEM
HT-SL50
1
FRONT VIEW REAR VIEW
12
RRL
L
RR
L
L
45
3 3
FRONT VIEW
REAR VIEW
1 – 2

HT-SL50
2 – 1
CD-ES700/CD-ES77CD-ES700/CD-ES77Service ManualCD-ES700/CD-ES77MarketE
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
the unit, be sure to rearrange the leads where they were before disassembling.
Figure 3
Figure 4
Figure 2
SMPSPWB
HDMI PWB
(E1) x 4
M3x 8mm
Main PWB
(C2) x 2
(C1) x 4
Special Screw
(D1) x 1
Special Screw
(B3) x 2
Special Screw
Main Chassis
STEP FIGURE
PROCEDURE
REMOVAL
1Main Chassis1. Screw.........................
2. Screw.........................
3. Socket........................
(A1)x5
(A2)x4
(A3)x1
1
1
2
3SMPSPWB 1. Screw.........................
2. Socket........................
(C1)x4
(C2)x2
3
4Main PWB 1. Screw......................... (D1)x1 3
5 HDMI PWB 1. Screw......................... (E1)x4 4
6Subwoofer 1. Net Frame Ass'y ........
2. Screw.........................
(F1)x1
(F2)x4
5
2Rear Panel
with HDMI PWB
1. Screw.........................
2. Screw.........................
3. Screw.........................
4. Socket........................
5. AC Cord.....................
(B1)x4
(B2)x2
(B3)x2
(B4)x1
(B5)x1
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
Figure 5 (F1) x 1
Net Frame Ass’y
(B1) x 4
M3x 6mm
(B2) x 2
M3x 10mm
(B4) x 1
SMPSPWB
Rear Panel
Main PWB
Wooden Box Ass’y
(A1) x 5
M4 x 10mm
Rear Panel
(A2) x 4
M3.5 x 12mm
Figure 1

HT-SL50
3 – 1
CHAPTER 3. MAJOR PART DRAWING
[1] Function Table Of IC
IC501 RH-IXA308AW00 : System Microcomputer (IXA308AW) (1/3)
Pin
No.
NAME INPUT /
OUTPUT FORM SOFT
PULL-UP FUNCTION OUTLINE
PORT_TYPE
1SCL OUTPUT CMOS INPUT/
OUTPUT OFF I2C SERIAL CLOCK BUS LINE
P3_5 / SCL / SSCK / (TRCIOD)
2DIR_CKSEL OUTPUT CMOS INPUT/
OUTPUT OFF Selection of system clock source,
Low: PLL (VCO) clock, High: XTI clock
P3_4 / TRAO / SSO / RXD1 / (TXD1)
3RESET INPUT INPUT OFF Reset Input. Active "L"
For MICOM reflash. Need 10k Pull-up
RESET
4NO USE OUTPUT CMOS INPUT/
OUTPUT OFF Connect to VCC with 10kΩresistor
XOUT / XC OUT / P4_7
5GND --- --- OFF GND
VSS / AVSS
6NO USE INPUT CMOS INPUT/
OUTPUT OFF Connect to VCC with 10kΩresistor
XIN / XCIN / P4_6
7VCC --- --- OFF Supply input to micom (3.3V)
VCC / AVCC
8MODE INPUT INPUT OFF Connect to VCC with 10kΩresistor
MODE
9SYS_PROTECT INPUT INPUT OFF POWER SUPPLY ABNORMAL DETECTION
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
P3_6 / (TRD1) / (RXD1) / (INT1)
12 HDMI_RST OUTPUT CMOS INPUT/
OUTPUT OFF HDMI MODULE RESET CONTROL
H : NORMAL , L : RESET
P3_1 / TRBO
13
AMP_OTW
INPUT CMOS INPUT/
OUTPUT OFF
AMPLIFIER OVERTEMPERATURE WARNING
DETECTION
H : NORMAL , L : ABNORMAL
P5_4 / TRCIOD
14 AMP_SD INPUT CMOS INPUT/
OUTPUT OFF AMPLIFIER SHUTDOWN DETECTION
H : NORMAL , L : ABNORMAL
P5_3 / TRCIOC
15 DIR_RST OUTPUT CMOS INPUT/
OUTPUT OFF DIR RESET CONTROL
H : NORMAL , L : RESET
P1_6 / CLK0 / (SSI)
16 DIR_ERROR INPUT CMOS INPUT/
OUTPUT OFF DIR ERROR DETECTION
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
P1_4 / TXD0
18 DIR_FSOUT0 INPUT CMOS INPUT/
OUTPUT OFF DIR CALCULATED SAMPLING FREQUENCY OUT-
PUT 0
P1_3 / KI3 / AN11 / (TRBO)
19 DIR_FSOUT1 INPUT CMOS INPUT/
OUTPUT OFF DIR CALCULATED SAMPLING FREQUENCY OUT-
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
P1_1 / KI1 / AN9 / TRCIOA /
TRCTRG
22 DAP_PWN OUTPUT CMOS INPUT/
OUTPUT OFF DAP POWER DOWN CONTROL
H : NORMAL , L : POWER DOWN
P1_0 / KI0 / AN8
23 DAP_RST OUTPUT CMOS INPUT/
OUTPUT OFF DAP RESET CONTROL
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
P0_7 / AN0
26 NO USE OUTPUT CMOS INPUT/
OUTPUT OFF
P0_6 / AN1

HT-SL50
3 – 2
IC501 RH-IXA308AW00 : System Microcomputer (IXA308AW) (2/3)
Pin
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
P0_5 / AN2 / CLK1
28 LED BLUE OUTPUT CMOS INPUT/
OUTPUT OFF LED indicator.
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
P0_2 / AN5
31
KEY
INPUT CMOS INPUT/
OUTPUT OFF When "L": Enter version check mode
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-SL50
3 – 3
IC501 RH-IXA308AWZZ : System Microcomputer (IXA308AW) (3/3)
Figure 3-1 Block Diagram of IC
LEV_DET
KEY
AREA HDMI_CE2 LED BLUE LED RED NO USE DC_RELAY
32 31
30
29
28 27 26
25
P0_0 / AN7 / (TXD1)
P0_1 / AN6 P0_2 / AN5 P0_3 / AN4
P0_4 / AN3 / TREO
P0_5 / AN2 / CLK1
P0_6 / AN1
P0_7 / AN0
SCL 1)COICRT(/SCS/ADS/4_3P)DOICRT(/KCSS/LCS/5_3P 24 SDA
DIR_CKSEL 2P3_4 / TRAO / SSO / RXD1 / (TXD1) P3_3 / INT3 / SSI / TRCCLK 23 DAP_RST
RESET 3RESET P1_0 / KI0 / AN8 22 DAP_PWN
NO USE 4GRTCRT/AOICRT/9NA/1IK/1_1P7_4P/TUOCX/TUOX 21 DAP_MUTE
GND 5VSS / AVSS VREF / P4_2 20 VREF
NO USE 6XIN / XCIN / P4_6 P1_2 / KI2 / AN10 / TRCIOB 19 DIR_FSOUT1
VCC 7VCC / AVCC P1_3 / KI3 / AN11 / (TRBO) 18 DIR_FSOUT0
MODE 8MODE P1_4 / TXD0 17 DIR_AUDIO
P3_4 / INT0 / (RXD1)
P1_7 / TRAIO / INT1 P3_6 / (TRD1) /
(RXD1) / (INT1)
P3_1 / TRBO P5_4 / TRCIOD P5_3 / TRCIOC P1_6 / CLK0 / (SSI)
P1_5 / RXD0 /
(TRAIO) / (INT1)
9
10
11 12 13
14
15
16
SYS_PROTECT
NO USE
HDMI_INT
HDMI_RST
AMP_OTW
AMP_SD
DIR_RST
DIR_ERROR
SHARP
IXA308A

HT-SL50
4 – 1
CHAPTER 4. CIRCUIT DESCRIPTION
[1] Voltage
1 10.500m 1 73.000m 1 1.490 1 220.000m
2 -0.000m 2 140.000m 2 1.440 2 -343.000m
30.405 3154.000m 31.4303226.000m
4 2.400m 4 3.010 4 0.000m 4 139.000m
5 0.200m 5 0.000m 5 1.490 5 22.000m
693.900m 6 3.000 6 1.490
780.200m 7 3.011 7 1.490
876.000m 83.027 82.990
9 -45.200m 9 1.208
10 -104.200m 10 0.000m
11 302.000m 11 0.400m
12 66.200m 12 3.005
13-151.200m 132.270 1 -210.000m 33 -112.000m
14 48.000m 14 2.280 2 -255.000m 34 49.300m
15 -0.100m 3-248.000m 35 -60.000m
16 87.800m 4 -225.000m 36 -142.000m
17 76.700m 5 -359.000m 37 242.000m
1892.000m 6 -166.000m 38 296.000m
1 170.000m 19 3.027 7 -115.000m 39 175.000m
2 169.000m 20 3.0308-145.000m 40 136.000m
3271.000m 21 0.000m 9 169.000m 41 235.000m
439.500m 22 0.000m 10 -266.000m 42 111.200m
531.400m 230.000m 11 -266.000m 43201.000m
6153.800m 24 2.39312 -134.000m 44 -317.000m
7 52.100m 25 0.000m 13-107.000m 45 152.000m
856.300m 26 3.68714-138.000m 46 -117.000m
9 61.200m 27 2.052 15 -324.000m 47 -183.000m
10 78.200m 280.000m 16 94.000m 48-332.000m
11 78.900m 29 3.02317 -260.000m 49 -52.000m
12 3.300m 30 0.000m 18-179.000m 50 -97.000m
133.300m 313.026 19 -210.000m 51 -152.000m
14 0.200m 32 0.412 20 -129.000m 52 -268.000m
m000.231-35m000.0
2112m000.421-51
m009.87-45m000.851-22m000.8261
m000.312-55m000.131-32m000.221-71
m000.082-65m000.903-42m
000.381-81
19 368.000m 1 220.000m 25 53.000m 57 -208.000m
20 -205.000m 2 -343.000m 26 -241.000m 58-262.000m
21 -125.000m 3226.000m 27 -179.000m 59 -221.000m
22 -230.000m 4 139.000m 28-221.000m 60 -160.000m
2313.550m 5 22.000m 29 -181.000m 61 -380.000m
m000.821-26m000.851-03m000.391-42
m000.231-36m000.213-13m
000.8252
m000.331-46m000.812-23m008.062
27 -388.000m
28-135.000m 1 177.000m
2 0.590
3-412.000m
4 0.400m
5 -97.000m
13.000 6 0.590
2 404.300m 7 -358.000m
3-0.200m 8-88.900m
44.300m
5 26.000m
IC501 IC502
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
VOLTAGE
(V)
IC301
PIN
NO
CN500
PIN
NO
VOLTAGE
(V)
IC802
IC800
PIN
NO
VOLTAGE
(V)
VOLTAGE
(V)
IC601
CN500
PIN
NO
VOLTAGE
(V)
IC302
PIN
NO
VOLTAGE
(V)
PIN
NO
1. Main PWB

HT-SL50
4 – 2
1 0.460 12 0.610 230.450 34 260.000m
2 2.270 130.610 24 265.000m 35376.000m
30.000m 14 0.000m 25 0.000m 3632.200m
4 0.000m 15 0.000m 26 242.000m 37 0.000m
5 2.280 16 0.000m 27 333.000m 38 0.000m
6 0.100m 17 38.800m 28187.000m 39 175.000m
737.600m 180.000m 29 0.000m 40 375.000m
80.100m 19 3.314 300.000m 41286.000m
9 0.000m 20 3.024 31188.000m 42 0.000m
10 0.000m 21 3.206 32375.000m 43247.000m
11 0.610 22 3.500m 33 355.000m 44 0.450m
2. HDMI PWB
3CI2CI
PIN VOLTAGE PIN VOLTAGE PIN VOLTAGE
1 -049.300m 1 -3.410 13-0.000m
2-48.200m 2 -3.360 14 -0.000m
3-2.883 3 -4.520 15 -0.000m
4 -0.000m 4 -3.020 16 -3.020m
5 -2.895 5 -3.019 17 -0.000m
6 -0.100m 6 -3.000 18-114.000m
7 -1.960 7 -4.900m 19 -1.474
8-3.005 8-3.03720-3.025
9 -0.300m 9 -2.000m 21 -0.100m
10 -3.005 10 -3.017 22 -3.870
11 -3.006 11 -3.000 23-0.000m
12 -2.900m 12 -2.990 24 -0.000m
13-0.100m
14 -50.200m
1-3.01817 -0.000m 33 -3.011 49 -0.300m
2 -2.93518-0.777 34-3.012 50 -152.300m
3-2.935 19 -1.500m 35 -1.400m 51 -142.000m
4 -2.141 20 -78.600m 36 -1.400m 52 -0.100m
5 -2.166 21 -1.500m 37-123.300m 53-3.020m
6 -0.417 22 -1.300m 38 -43.000m 54 -50.300m
7 -0.49323-22.500m 39-3.021 55 -50.200m
8-305.500m 24 -1.400m 40 -0.000m 56 -0.100m
9 -0.000m 25 -86.000m 41 -152.000m 57 -0.100m
10 -225.800m 26 -1.400m 42 -1.140 58-3.023
11 -0.400m 27 -0.300m 43-0.000m 59 -3.023
12 -3.020 28-50.200m 44 -0.500m 60 -0.900m
13-0.300m 29 -118.800m 45 -1.300m 61 -0.100m
14 -132.00m 30 -123.900m 46 -233.000m 62 -3.180
15 -1.300m 31 -2.000m 47 -102.100m 63-2.113
16 -0.900m 32-
3.01848-3.005 64 -3.025
PIN
NO
VOLTAGE
(V)
NO (V) NO (V) NO (V)
PIN
NO
VOLTAGE
(V)
IC901
PIN
NO
VOLTAGE
(V)
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
IC4
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
PIN
NO
VOLTAGE
(V)
PIN
NO