CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST
ADJUSTMENT
(Continued)
3. MAX BEAM R1631
1. Receive the E-5CH "MONOSCOPE PATIERN" signal.
2. Using the remote controller, call the Video Normal mode.
3. Connect the beam ammeter between TP601 and TP602.
• Ammeter's full scale: 3mA range
• Ammeter's positive
(+) read: . TP601
• Ammeter's negative (-) read: TP602
4. Adjust R1631 (sub-contrastcontrol) so that thebeam current be 1.6mAo
Note: Before
starting
this
adjustment,
warm up the
unit
for30minutesorlonger
at a beam
current
of 1400±
50~.
II]
1 2 3 4 5
4. SUBBRIGHTNESS FC BUS ADJUSTMENT
1. Receive the E-2CH (crosshatch pattern) signal.
2. Using
the remote controller, call up thenormal video mode.
3. Adjust
the sub-brightness control in the service mode so that the
fourth (1 thru 5 from left)black zone of the window pattern should
look sinking.
II]
1 2 3 4 5
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HORIZONTAL AND VERTICAL CIRCUIT ADJUSTMENT
1. MAIN PICTURE ADJUSTMENT
For this items 1thru 6 below, use the remote controller in the service mode.
1. V-AMPLITUDE 50: Adjust the overscan
8.5% (E-5).
2. V-LINEARITY 50: Adjust to getthebest linearity.
3. V-S-CORRECTION 50: Preset (readjust ifthe linearity is poor).(10)
4. V-PHASE 50 (V-CENTER): Align the screen center WithCRT'sgeometrical center (E-5)
5. H-PHASE 50 (H-CENTER): Align the screen centerwithCRT's geometrical center (E-5)
6. H-SIZE: Adjust the overscan 8.5% (E-5).
7. EW-PALABOLA (SIDE-PIN): Adjust so that the secondvertical linesfrom the left and right ends of the cross-
hatch pattern be straight (E-2).
8. V-BIAS: Preset
(7)
9. V-S-CORRECTION: Preset (15)
10. EW-CORNER (SUB-SIDEPIN): Adjust so that the endofthe crosshatch pattern be straight.
11. TRAPEZIUM: Preset (Readjust ifnthe trapezium is poor). (25)
12. V-COMPENSATION: Preset (5)
13. H-COMPENSATION: Preset (5)
14. Others: For the V-AMPLITUDE60, V-LINEARITY 60, V-S-CORRECTION60,V-PHASE
60, H-SHIFT60, and H-WIDTH 60 adjustment, their corrected data are automatically entered when the corresponding 50 Hz mode adjustments aremade.
The signals of the receive channneIs in paretheses are follows.
(E-2):Crosshatch pattern (50Hz) (E-5):Monoscope pattern (50Hz)
If an error is too much in checking any of the 60Hz items, readjust the item in 60Hz mode
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