Table of Contents
Advertisement
4 ADJUSTMENT PROCEDURE
4.1.
Voltage Confirmation
+B Voltage
1. Operate the TV set.
2. Set controls :
Bright Minimum
Contrast Minimum
Volume Minimum
4.2.
E.H.T Check
Item/Preparation
1. Receive an RF signal, window or crosshatch pattern.
2. Set the Brightness and Contrast to minimum (0 Beam)
3. Connect the High Voltage Voltmeter to the CRT ANODE CAP.
4. The set should be switched to AV (no input) contrast and
brightness minimum.
Item/Preparation
Adjustment Procedure
1. TPD15 : 133.0 ± 1V (D-Board)
2. TPD13 : 15.5 ± 1V (D-Board)
3. TPD14 : -15 ± 1V (D-Board)
4. TPD18 : 7.0 ± 0.5V (D-Board)
5. TPD9-TPD20 : 31.5 ± 1.0V (D-Board)
6. TPD10 : 5.1 ± 0.25V (D-Board)
7. TPD32 : 220.0 ± 10V (D-Board)
8. IC1406 PIN4 : 2.5V ± 0.25V (A-Board)
9. IC1405 PIN2 : 3.3 ± 0.3V / -0.2V (A-Board)
10. IC1410 PIN2 : 12 ± 0.4V (A-Board)
11. TP1410 : 1.85V ± 0.1V (A-Board)
12. IC001 PIN3 : 5.0 ± 0.4V (A-Board)
13. IC1413 PIN3 : 5.0 ± 0.4V (A-Board)
14. IC1414 PIN3 : 9.0 ± 0.4V (A-Board)
15. IC2000 PIN2 : 8.0 ± 0.4V (A-Board)
16. IC1412 PIN2 : 3.2 ± 2V (A-Board)
17. IC1412 PIN4 : 2.5 ± 0.25V (A-Board)
Adjustment Procedure
1. Check the EHT voltage is (31.4 ± 1.0) kV.
2. Switch from AV mode to TV.
3. With the Brightness and the contrast controls MAX, check that the
high voltage does not drop more than 3.0 kV from the above
measurement with R.F. signal.
9
TX-34P800R
Advertisement
Table of Contents
