Service Manuals, User Guides, Schematic Diagrams or docs for : TOSHIBA TV toshiba_vtw-2187_191

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SERVICE MANUAL


COLOR TELEVISION/
VIDEO CASSETTE RECORDER/
DVD VIDEO PLAYER

           VTW2187
                       SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES                                      6. AVOID AN X-RAY
  As for the places which need special attentions,        Safety is secured against an X-ray by consider-
  they are indicated with the labels or seals on the      ing about the cathode-ray tube and the high
  cabinet, chassis and parts. Make sure to keep the       voltage peripheral circuit, etc.
  indications and notices in the operation manual.        Therefore, when repairing the high voltage pe-
                                                          ripheral circuit, use the designated parts and
2. AVOID AN ELECTRIC SHOCK
                                                          make sure not modify the circuit.
  There is a high voltage part inside. Avoid an           Repairing except indicates causes rising of high
  electric shock while the electric current is            voltage, and it emits an X-ray from the cathode-
  flowing.                                                ray tube.
3. USE THE DESIGNATED PARTS                              7. PERFORM A SAFETY CHECK AFTER
  The parts in this equipment have the specific             SERVICING
  characters of incombustibility and withstand
                                                           Confirm that the screws, parts and wiring which
  voltage for safety. Therefore, the part which is
                                                           were removed in order to service are put in the
  replaced should be used the part which has
                                                           original positions, or whether there are the
  the same character.
                                                           portions which are deteriorated around the
  Especially as to the important parts for safety
                                                           serviced places serviced or not. Check the
  which is indicated in the circuit diagram or the
                                                           insulation between the antenna terminal or
  table of parts as a     mark, the designated
                                                           external metal and the AC cord plug blades.
  parts must be used.
                                                           And be sure the safety of that.
4. PUT PARTS AND WIRES IN THE                              (INSULATION CHECK PROCEDURE)
   ORIGINAL POSITION AFTER
                                                           1. Unplug the plug from the AC outlet.
   ASSEMBLING OR WIRING                                    2. Remove the antenna terminal on TV and turn
  There are parts which use the insulation                    on the TV.
  material such as a tube or tape for safety, or           3. Insulation resistance between the cord plug
  which are assembled in the condition that                   terminals and the eternal exposure metal
  these do not contact with the printed board.                [Note 2] should be more than 1M ohm by
  The inside wiring is designed not to get closer             using the 500V insulation resistance meter
  to the pyrogenic parts and high voltage parts.              [Note 1].
  Therefore, put these parts in the original               4. If the insulation resistance is less than 1M
  positions.                                                  ohm, the inspection repair should be
                                                              required.
5. TAKE CARE TO DEAL WITH THE
   CATHODE-RAY TUBE                                        [Note 1]
                                                             If you have not the 500V insulation
  In the condition that an explosion-proof cathode-          resistance meter, use a Tester.
  ray tube is set in this equipment, safety is
  secured against implosion. However, when                 [Note 2]
  removing it or serving from backward, it is                External exposure metal: Antenna terminal
  dangerous to give a shock. Take enough care to                                      Earphone jack
  deal with it.


                                  HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
1. MODEL NUMBER and VERSION LETTER
   The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
   found at the end of the SERIAL NUMBER.
2. PART NO. and DESCRIPTION
   You can find it in your SERVICE MANUAL.




                                                  A1-1
                           WHEN REPLACING DVD DECK
[ Removing the DVD Deck ]
  Before removing Pick Up PCB and DVD PCB connector, short circuit the position shown in Fig. 1 using
  a soldering iron. If you remove the DVD Deck with no soldering, the Laser may be damaged.


[ Installing the DVD Deck ]
  Remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD
  PCB connector.

NOTE



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