REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 20 March 2019

PHILIPS 42PF7320 - PLASMA TV - DISASSEMBLE PROCEDURE

PHILIPS 42PF7320 - PLASMA TV - DISASSEMBLE PROCEDURE


ASSSY/PANEL REMOVAL
Caution: Disconnect the Mains/AC Power cord before you remove the rear cover.
  • Place the TV set upside down on a table top, using the foam bars.
Caution:do not put pressure on the display, but let the monitor lean on the speakers or the Front cover.
  • Remove all T10 screws around the edges of the metal rear cover: “parker” screws around the outer rim, “tapping” screws around the connector plate.
  • Remove the four "mushrooms" from the rear cover.
  • Lift the metal rear cover from the set. Make sure that wires and flat foils are not damaged.
SPEAKER COMPARTMENT COVER
After removing the metal rear cover, you gain access to the Speaker Compartment covers.
  • Remove all T10 screws [1] around the outer rim of the cover.
  • Remove the T10 screws [2] on top of the inner rim.
  • For sets with AmbiLight: Remove the T10 screws [3] at the bottom of the inner rim.
  • After removal of all the screws, slightly push the top of the cover inwards. This will lift the outer rim slightly up so you can take the cover out.
To release the complete cover (only for models with the AmbiLight feature, as in figure above):
  • Lift the cover up; let it hinge at the topside.
  • Now, unplug the cables[1] at the AmbiLight Inverter panel.
AMBILIGHT INVERTER [IF PRESENT]
After removal of the Speaker Compartment Covers, this panel is accessible.
  • Disconnect the cable(s) from the panel.
  • Remove the T10 mounting screws [1] that hold the assy.
  • Take out the panel from its bracket [2].
CONTROL PANEL & SPEAKERS
  • After removal of the Speaker Compartment Covers, this panel is accessible. Release the clamps and take out the panel.
  • After removal of the Speaker Compartment Covers, you can access the speakers.
SIDE I/O PANEL
After removal of the Speaker Compartment Covers, this panel is accessible.
  • Disconnect the cable(s) from the panel.
  • Remove the T10 mounting screws [1] that hold the assy.
  • Take out the panel from its bracket [2].  When defective, replace the whole unit.
MULTIMEDIA CARD READER [IF PRESENT]
After removal of the Speaker Compartment Covers, this panel is accessible.
  • Unplug the related USB cable at the top of the SSB.
  • Remove the two T10 mounting screws [1] that hold the assy.  When defective, replace the whole unit.
AUDIO AMPLIFIER PANEL
  • Disconnect all cables from the Audio Amplifier panel.
  • Remove the T10 mounting screw from the Audio panel.
  • Release the two plastic fixation pins.
  • Take out the Audio panel (it hinges at the top side).
LED PANEL
  • Disconnect the cable(s) from the panel.
  • Remove the T10 mounting screws that hold the panel.
  • Take out the panel.  When defective, replace the whole unit.
SMALL SIGNAL BOARD [SSB]
  • Remove all connector fixation screws [1] at the connector plate (bottom side), and at the shielding plate (rear side).
  • Remove the fixation screws [2] of the connector plate itself.
  • Remove all shielding fixing screws [3].
  • Slide the connector plate away from the SSB [4], and lift the shielding from the SSB.
  • Unplug all cables on the SSB.
  • Remove the mounting screws that hold the SSB, and lift the panel from the set.
PLASMA DISPLAY PANEL/GLASS PLATE
  • Remove the T20 display panel mounting screws [1].
  • Remove the T10 screws [2] from the mounting frame.
  • Unplug all cable(s): – LVDS cable at SSB side (fragile connector).  – SSB supply cables at the Main Supply board.  – Mains cable at the Main Supply board.  – Side I/O cable at SSB side (fragile connector).  – Cable at LED panel.  – Keyboard cable at SSB side.  – Audio Amplifier supply cable at the Main Supply board.  – Loudspeaker cables (incl. ferrites) at the Audio panel.
  • Lift the metal frame (together with all PWBs) from the display panel.
  • After removal of the frame, lift the PDP from the set.
PDP GLASS PLATE
In order to remove/exchange the PDP glass plate:
  • Remove the PDP as described earlier.
  • Remove the T10 screws [1] from the mounting frame.
  • After removal of the frame, you can lift the glass plate from the set.
  • While re-assembling, make sure that all cables are placed and connected in their original position.
  • Pay special attention not to damage the EMC foams on the SSB shields. Ensure that EMC foams are mounted correctly.
Posted By: FRANK at 06:53
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