Aiwa TV-F2400 Service Manual page 8

1-4. OSD POS OSD Positioning Adjustment / Adjustment Menu Screen: PAGE 1-4
Input Signal: Not specified.
• Use the volume keys on the jig remote controller to adjust the position of the +
sign on both right and left sides shown on the OSD screen to be equivalent from
the screen edge. A=B Fig. 1-4
1-5. PIF VCO Video IF/ VCO Adjustment / Adjustment Menu Screen: PAGE 1-5
Input Signal: ANT RF-INPUT
Colour Bar
Measuring Instrument: Oscilloscope Pattern generator / reader: LCG-401
• Use the volume keys on the jig remote controller to adjust the status of AFT on the
screen to "OK". Fig. 1-5
• If "OK" status can be obtained from multiple numbers of ranges, select the
intermediate value.
* SD will display "NG" while the screen has no signals. There will be no problem with
VCO Adjustment. (e.g. when there is no signal with Video input) In this case, it is
possible to make adjustments as long as ANT is loaded.
1-6. RF AGC RF-AGC/ Adjustment Menu Screen: PAGE1-6
Input Signal: ANT RF-INPUT
Color Bar
Test Point: TP101 RF AGC
Measuring Instrument: Oscilloscope
1. Connect the oscilloscope to TP101.
2. Using the volume keys on the jig remote controller to adjust the test point voltage
value to 4.0 ± 0.5VDC. Then check if the status of AFT on the Adjustment Menu
Screen is displayed "OK" as shown in Fig. 1-6.
Pattern generator / reader: LCG-401
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PAGE 1
+
OSD POS 24
A
Fig. 1-4
PA G E 1
SD
PIF VCO 58 AFT
Fig. 1-5
PA G E 1
AFT
RF AGC 32
Fig. 1-6
+
B
OK
OK
OK