Samsung HW-T450 Скачать руководство пользователя страница 18 | Manualshive

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4-5

Troubleshooting

4-1-2. No Audio Output

Symptom

• In case of no sound

Major

checkpoints

• Speaker connector is not connected properly or check for damage.

• Make sure your sound processing functions operate properly on the motherboard.

• Make sure the speaker isn’t bad.

Diagnostics

Caution

• Before working, disconnect the power cord.

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Содержание HW-T450

Страница 1: ...io Party Box Contents SERVICE Manual HW T450 Sound bar 1 Precautions 2 Product Specifications 3 Disassembly and Reassemble 4 Troubleshooting 5 PCB Diagram 6 Schematic Diagram Model HW T450 7 Exploded View Part List ...

Страница 2: ...1 2 No Sound Output 4 3 4 2 Measures to be taken when the Protection Circuit operates 4 8 4 2 1 AMP Pre Inspection relating to Power Protection 4 9 4 3 Initialization Update 4 10 4 3 1 Initialization method 4 11 4 3 2 How to check the Firmware version 4 12 4 3 3 USB Update procedure 4 13 5 PCB Diagram 5 1 Wiring Diagram 5 1 5 2 MAIN PCB Top 5 2 5 3 MAIN PCB Bottom 5 3 5 3 1 Pin Connection 5 4 5 3 ...

Страница 3: ... 1 Overall Block Diagram 6 1 6 2 MAIN 1 6 2 6 3 MAIN 2 6 3 6 4 MAIN 3 6 4 6 5 MAIN 4 6 5 6 6 MAIN 5 6 6 6 7 MAIN 6 6 7 6 8 Power 1 6 8 6 9 LED 1 6 9 6 10 Key 1 6 10 7 Exploded View Part List 7 1 Exploded View Part List 7 1 ...

Страница 4: ...deo connectors Such alterations might create a safety hazard Also any design changes or additions will void the manufacturer s warranty 4 Leakage Current Hot Check Fig 1 1 AC Leakage Test Warning Do not use an isolation transformer during this test Use a leakage current tester or a metering system that complies with American National Standards Institute ANSI C101 1 Leakage Current for Appliances a...

Страница 5: ...enna wiring sharp edges and especially the AC and high voltage power supplies Always inspect for pinched out of place or frayed wiring Do not change the spacing between components and the printed circuit board Check the AC power cord for damage Make sure that no wires or components touch thermally hot parts 8 Product Safety Notice Some electrical and mechanical parts have special safety related ch...

Страница 6: ... original position 4 After servicing always check that the screws components and wiring have been correctly reinstalled Make sure that the portion around the serviced part has not been damaged 5 Check the insulation between the blades of the AC plug and accessible conductive parts examples metal panels input terminals and earphone jacks 6 Insulation Checking Procedure Disconnect the power cord fro...

Страница 7: ...als These can generate electrical charges that damage ESDs 4 Use only a grounded tip soldering iron when soldering or unsoldering ESDs 5 Use only an anti static solder removal device Many solder removal devices are not rated as anti static these can accumulate sufficient electrical charge to damage ESDs 6 Do not remove a replacement ESD from its protective package until you are ready to install it...

Страница 8: ...installing the product Special places a place where a large amount of dust is accumulated where chemical substances are used or the ambient temperature is too high or low a place that is full of moisture or water in transportation vehicles such as a car or in public places such as the airport or subway station where the product is supposed to operate uninterruptedly for a long time 6 Keep the pack...

Страница 9: ...al Power 200W RMS mid 35Wx2 wireless subwoofer 130Wx1 2 1 channel system T450 USB Music Playback BLUETOOTH Optical in Product Specifications 2 Product Specifications 2 1 Product Feature 2 1 Product Feature ...

Страница 10: ...ctronics Co Ltd reserves the right to change the specifications without notice Weight and dimensions are approximate Dispose unwanted electronics through an approved recycler To find the nearest recycling location go to our website www samsung com recyclingdirect or call 877 278 0799 ...

Страница 11: ...Product Specifications 2 3 Accessories 2 3 ...

Страница 12: ...680A Product Specifications 2 4 Accessories Product Description Parts Code Remark Power Cord 2PCS Samsung Electronics Service Center The part code for some accessories may differ depending on your region Batteries Remote Control 2 4 ...

Страница 13: ...View Exploded Disassembly and Reassembly ...

Страница 14: ...ly Follow these directions carefully never use metal instruments to pry apart the cabinet When disassembling the product do not use any metal tools except for the provided jig Disassembly and Reassembly 3 Remove Main board TX Module Socket VFD PCBA Metal Plate 2 2 Unplug 2 cables from connector 2 Remove Main board TX Module VFD PCBA ASSY Remove rear cover 1 Description Picture description 3 1 Prod...

Страница 15: ...s images show 6 Remove Power Board Note Reassembly procedures are in the reverse order of disassembly procedures The exterior may differ depending on the product 5 Remove I O cover 5 1 Remove right rear L cover and 4 screws to dissemble I O cover as images show ...

Страница 16: ...oting 4 1 Checkpoints by Error Mode Oscilloscope Setting Values Check DC voltage Check I2 C I2 S signal check PWM signal Check L L signal Voltage DIV Depend voltage 1V div 10V div 10V div TIME DIV 500ms div 20us div 1us div 500us div ...

Страница 17: ...ting 4 1 1 No Power Symptom If you connect the power cables the LED on the front will turn on If the units do not work Major checkpoints Diagnostics Caution Before working disconnect the power cord In case of no power ...

Страница 18: ... no sound Major checkpoints Speaker connector is not connected properly or check for damage Make sure your sound processing functions operate properly on the motherboard Make sure the speaker isn t bad Diagnostics Caution Before working disconnect the power cord ...

Страница 19: ...4 5 Troubleshooting 4 1 3 Optical is not working Symptom In case of optical is not working Major checkpoints Diagnostics Caution Before working disconnect the power cord ...

Страница 20: ...4 5 Troubleshooting 4 1 4 No sound output Subwoofer Symptom In case of no sound subwoofer Major checkpoints Diagnostics Caution Before working disconnect the power cord ...

Страница 21: ...4 6 Troubleshooting 4 1 5 In case of key is not working Diagnostics ...

Страница 22: ...In case of VFD is not working 4 7 Troubleshooting 4 1 6 Diagnostics ...

Страница 23: ...4 8 Troubleshooting 4 1 6 In case of USB is not working Diagnostics ...

Страница 24: ...4 9 Troubleshooting 4 1 7 In case Bluetooth is not working Diagnostics ...

Страница 25: ...er Protection If you think there are problems at the AMP PCB you can check the PCB without disassembling the set by following the test below Caution Do not connect the power cord during the test Resistance using Tester F R CH 9 48M ohm If there is a large difference than the value listed above then the AMP PCB has a problem ...

Страница 26: ...4 11 Troubleshooting 4 3 Initialization Update 4 3 1 Set Initialization method ...

Страница 27: ...4 12 Troubleshooting 4 3 Initialization Update 4 3 2 How to check firmware version ...

Страница 28: ...4 13 Troubleshooting 4 3 3 USB Update procedure ...

Страница 29: ...5 1 PCB Diagram 5 PCB Diagram 5 1 Wiring Diagram Pin Connection ...

Страница 30: ...5 2 PCB Diagram 5 2 MAIN PCB Top ...

Страница 31: ...5 3 PCB Diagram 5 3 MAIN PCB Bottom ...

Страница 32: ...5 4 PCB Diagram 5 3 1 Pin Connection ...

Страница 33: ...5 5 PCB Diagram 5 3 2 Test point wave form ...

Страница 34: ...5 5 PCB Diagram 5 3 3 Test point wave form ...

Страница 35: ...5 5 PCB Diagram 5 3 4 Test point wave form ...

Страница 36: ...5 5 PCB Diagram 5 3 5 Test point wave form ...

Страница 37: ...5 6 PCB Diagram ...

Страница 38: ...PCB Diagram 5 4 Main board PCBA Bar 5 7 Top Bottom ...

Страница 39: ...Top PCB Diagram 5 5 Power PCBA Bar 5 8 Bottom ...

Страница 40: ...PCB Diagram 5 6 VFD Board PCBA Bar 5 9 Top Bottom ...

Страница 41: ...PCB Diagram 5 7 KEY Board PCBA Bar 5 10 Top Bottom ...

Страница 42: ...PCB Diagram 5 7 AMP PCBA Sub 5 10 Top Bottom ...

Страница 43: ...Exploded Views and Parts List 1 HW T450 ZA ZZ01 Exploded View 1 ...

Страница 44: ...SSEMBLY 53 5 42 31 5 TONLY SA 1 5 2 AH81 11757A A S MAIN BOARD 149 49 1 6mm TONLY SA 1 6 2 AH81 11785A A S COVER BOTTOM M 330 65 37 TONLY SA 1 7 2 AH81 11781A A S METAL SEEY 163 55 5 26 TONLY SA 1 8 2 AH81 11760A A S BAR POWER BOARD 113 70 2mm TONLY SA 1 9 2 AH81 12477A A S COVER BOTTOM R 1 08 HWT450 SUB1 181 SA 1 10 2 AH81 11768A A S WIRELESS MODULE TX WORLD WIDE 40 3 SA 1 11 2 AH81 11776A A S CO...

Страница 45: ...ONLY 1 SA 2 AH81 11758A A S KEY BOARD 111 22 1 2mm TONLY 1 SA 2 AH81 11759A A S VDF BOARD 124 29 1 6mm TONLY 1 SA 2 AH81 11760A A S BAR POWER BOARD 113 70 2mm TONLY 1 SA 2 AH81 11767A A S FFC CABLE L 60mm TONLY 1 SA 2 AH81 11768A A S WIRELESS MODULE TX WORLD WIDE 40 3 1 SA 2 AH81 11775A A S DECO CASE BOTTOM R ASSY 272 56 13 3 1 SA 2 AH81 11776A A S COVER AS ASSEMBLY 53 5 37 39 TONLY 1 SA 2 AH81 11...

Страница 46: ...Exploded Views and Parts List 1 HW T450 ZC ZZ01 Exploded View 1 ...

Страница 47: ...SSEMBLY 53 5 42 31 5 TONLY SA 1 5 2 AH81 11757A A S MAIN BOARD 149 49 1 6mm TONLY SA 1 6 2 AH81 11785A A S COVER BOTTOM M 330 65 37 TONLY SA 1 7 2 AH81 11781A A S METAL SEEY 163 55 5 26 TONLY SA 1 8 2 AH81 11760A A S BAR POWER BOARD 113 70 2mm TONLY SA 1 9 2 AH81 12477A A S COVER BOTTOM R 1 08 HWT450 SUB1 181 SA 1 10 2 AH81 11768A A S WIRELESS MODULE TX WORLD WIDE 40 3 SA 1 11 2 AH81 11776A A S CO...

Страница 48: ...ONLY 1 SA 2 AH81 11758A A S KEY BOARD 111 22 1 2mm TONLY 1 SA 2 AH81 11759A A S VDF BOARD 124 29 1 6mm TONLY 1 SA 2 AH81 11760A A S BAR POWER BOARD 113 70 2mm TONLY 1 SA 2 AH81 11767A A S FFC CABLE L 60mm TONLY 1 SA 2 AH81 11768A A S WIRELESS MODULE TX WORLD WIDE 40 3 1 SA 2 AH81 11775A A S DECO CASE BOTTOM R ASSY 272 56 13 3 1 SA 2 AH81 11776A A S COVER AS ASSEMBLY 53 5 37 39 TONLY 1 SA 2 AH81 11...

Страница 49: ...Exploded Views and Parts List 1 HW T450 ZP ZZ01 Exploded View 1 ...

Страница 50: ...Y 02 T450R5 XX0B1S S SA 1 5 1 AH81 11757A A S MAIN BOARD 08 HWT450 MA0S 149 49 1 6 SA 1 6 1 AH81 11785A A S COVER BOTTOM M 56 S450W0 0UAB1S SS 3 SA 1 7 1 AH81 11781A A S METAL SEEY 02 T450M0 XX0S SS 163 55 SA 1 8 1 AH81 11760A A S BAR POWER BOARD 08 HWT450 PW0S 113 7 SA 1 9 1 AH81 12477A A S COVER BOTTOM R 1 55 S450R2 0UAS SS 1 SA 1 10 1 AH81 11768A A S WIRELESS MODULE TX WORLD WIDE 07 W SA 1 11 1...

Страница 51: ...1 22 1 2m 1 SA 1 AH81 11759A A S VDF BOARD 08 HWT420 VF0S 124 29 1 6m 1 SA 1 AH81 11760A A S BAR POWER BOARD 08 HWT450 PW0S 113 7 1 SA 1 AH81 11767A A S FFC CABLE 46 FF006C 24AUF L 60mm TON 1 SA 1 AH81 11768A A S WIRELESS MODULE TX WORLD WIDE 07 W 1 SA 1 AH81 11775A A S DECO CASE BOTTOM R ASSY 02 T450R7 XX 1 SA 1 AH81 11776A A S COVER AS ASSEMBLY 02 T450R4 XX0B1S S 1 SA 1 AH81 11777A A S COVERI O ...

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