Panasonic PT- 56WX51CE, Service Manual

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Service Manual
PTV Screen Assemblies
Figure 20. Screen Assemblies.
B+ Voltages Table
Preparation:
Set the following controls
Picture.......................... Normal.
Bright ...........................Normal.
Volume ......................... Min. (0).
Procedure:
1.
Apply a monoscope pattern.
2. Connect the (-) Lead of the Digital Voltmeter to TP
GND1 (Cold Ground).
3. Connect the (+) Lead of the Digital Voltmeter to
each Test Point and confirm the B+ Voltages (See
Table 3).
FRONT
REAR
Protective Screen
Fresnel Screen
Lenticular Screen
Front Cabinet
(note vertical ridges)
(note circular ridges)
Label on
lower left corner
(rear side)
Label on
lower left corner
(front side)
Labels on
opposite sides
No. Test Point (D-Board) Voltage
1 TPD14 138.6 ± 1.0
2 TPD13 19.0
±
1.5
3 TPD12 19.0 ± 1.5
4 TPD11 -19.0
±
1.5
5 TPD10 22.0 ± 1.5
6 C845 (-) -22.5
±
1.5
No. Test Point (A-Board) Voltage
1 TPA031 9.0
±
0.5
2 TPA030 5.0
±
0.5
Table 3: B+ Voltages Table