Service Manuals, User Guides, Schematic Diagrams or docs for : DISNEY MD20080 MD20080

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MD20080

SERVICE MANUAL
     COLOR TELEVISION RECEIVER




                       ORIGINAL
                     CHASSIS CODE B




       Design and specifications are subject to change without notice.
                     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-
2. AVOID AN ELECTRIC SHOCK                                ripheral circuit, use the designated parts and
  There is a high voltage part inside. Avoid an           make sure not modify the circuit.
  electric shock while the electric current is            Repairing except indicates causes rising of high
  flowing.                                                voltage, and it emits an X-ray from the cathode-
                                                          ray tube.
3. USE THE DESIGNATED PARTS
  The parts in this equipment have the specific        7. PERFORM A SAFETY CHECK AFTER
  characters of incombustibility and withstand            SERVICING
  voltage for safety. Therefore, the part which is
  replaced should be used the part which has              Confirm that the screws, parts and wiring which
  the same character.                                     were removed in order to service are put in the
  Especially as to the important parts for safety         original positions, or whether there are the
  which is indicated in the circuit diagram or the        portions which are deteriorated around the
  table of parts as a     mark, the designated            serviced places serviced or not. Check the
  parts must be used.                                     insulation between the antenna terminal or
                                                          external metal and the AC cord plug blades.
                                                          And be sure the safety of that.
4. PUT PARTS AND WIRES IN THE
   ORIGINAL POSITION AFTER                                (INSULATION CHECK PROCEDURE)
   ASSEMBLING OR WIRING                                   1. Unplug the plug from the AC outlet.
  There are parts which use the insulation                2. Remove the antenna terminal on TV and turn
  material such as a tube or tape for safety, or             on the TV.
  which are assembled in the condition that               3. Insulation resistance between the cord plug
  these do not contact with the printed board.               terminals and the eternal exposure metal
  The inside wiring is designed not to get closer            [Note 2] should be more than 1M ohm by
  to the pyrogenic parts and high voltage parts.             using the 500V insulation resistance meter
  Therefore, put these parts in the original                 [Note 1].
  positions.                                              4. If the insulation resistance is less than 1M
                                                             ohm, the inspection repair should be
5. TAKE CARE TO DEAL WITH THE                                required.
   CATHODE-RAY TUBE                                       [Note 1]
  In the condition that an explosion-proof cathode-         If you have not the 500V insulation
  ray tube is set in this equipment, safety is              resistance meter, use a Tester.
  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 CHASSIS CODE.)
1. MODEL NUMBER and CHASSIS CODE
   You canfind it in the back of your unit.
2. PART NO. and DESCRIPTION
   You can find it in your SERVICE MANUAL.


                                            IMPORTANT
   Inferior silicon grease can damage IC's and transistors.
   When replacing an IC's or transistors, use only specified silicon grease (YG6260M).
   Remove all old silicon before applying new silicon.




                                              A1-1
ABOUT LEAD FREE SOLDER (PbF)
Distinction of PbF PCB:
PCBs (manufactured) using lead free solder will have a PbF printing on the PCB.
(Please refer to figures.)




Caution:

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