How to disassemble Samsung HT H5500, HT H4500 – Home Theater System SMPS, Power board schematic

Power board [SMPS] schematic of Samsung HT H5500w, HT H4500, disassembly procedure

* Never defeat any of the B+ voltage interlocks.  Do not apply AC power to the unit (or any of its assemblies) unless all solid-state heat sinks are correctly installed.

* Do not remove a replacement ESD from its protective package until you are ready to install it.
Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive materials.

Disassembly and reassembly

1. Unfasten 3 screws on the back. . BH,+,B,M3,L10,ZPC(BLK),SWRCH18A2

2. Lift the top cover.

3. Disconnect the FCC cable from Touch Key.

Disconnect 2 FFC cables between the Deck and Main.(blue)

Disconnect Fan Wire and SMPS Connector from the Main. (yellow)
4. Disconnect the RX Module from the Main.(green). Unfasten 2 screws on the MAIN PCB. BH,+,B,M3,L6,ZPC(WHT),SWRCH18A

5. Unfasten 3 screws on the back side.
BH,+,B,M3,L10,ZPC(BLK),SWRCH18A

6. Disassemble and lift the main board.

7. Unfasten the Assy-BT by pulling the Assy-BTup.(refer toi mage).  RemovetheAssy-BT.

8. Unfasten 2 screws on the DECK.
BH,+,B,M3,L6,ZPC(WHT),SWRCH18A
And push the locking points on the side.(refer to image)
Remove the Assy-DECK.

9. Unfasten 5 screws on the SMPS. :BH,+,B,M3,L6,ZPC(WHT),SWRCH18A

10. Unfasten 3 screws on the back side.  :BH,+,B,M3,L10,ZPC(BLK),SWRCH18A.  Remove the SMPS and FAN.

11. Unfasten 1screw on the Wireless RX module. :BH,+,B,M3,L6,ZPC(WHT),SWRCH18A.  Romove the Wireless RX module.

12. Unfasten 1screw on the Wi-Fi module.  :BH,+,B,M3,L10,ZPC(BLK),SWRCH18A.  Remove the Wi-Fi module.

SMPS (Power Board) schematic - Samsung [HTH4500]

SMPS (Power Board) Schematics - Samsung [HTH5500w]