Panasonic PT53WX54J - 53" PROJECTION TV HD, Service Manual

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high voltage distributor on FBT.
DVM and power supply connection
5. Connect the 15 ~ 25 V DC variable power supply positive lead to D34
or IC802 pin 2 (D Board) and negative lead to heat sink of Q551 or D825
Procedures:
1. Apply a NTSC white pattern.
2. Turn PTV ON.
3. Adjust the picture or brightness controls so that the DVM reads 12.4 ±
0.4 volts.
4. Increase the variable power supply until set turns off. The set should
turn off at 12.4 ± 0.4 volts (DVM) and high voltage less than 36.4kV.
5. If the DVM reading is other than 12.4 ± 0.4 volts, readjust picture or
brightness control and repeat steps 3.
6. Turn off the variable supply and confirm that the set will turn on with
the remote control.
4. Service notes
NOTE
These components are affixed with glue. Be careful not to break or damage any foil under the
component or at the pins of the ICs when removing. Usually applying heat to the component for a
short time while twisting with tweezers will break the component loose.
Leadless chip component (surface mount)
Chip components must be replaced with identical chips due to critical foil track spacing. There are no
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