MAX667VD
- 4 -
1. Set the range of CH1 and CH2 of an oscilloscope to 1V
range.
2. Indicate CH1 and CH2 by GND,adjust GND as follows.
White balance red adjustment
Measurement conditions: the same conditions as the ad-
justment of "Power supply voltage". / Measuring instrument:
oscilloscope(DC range)
1. Display the waveform of TP716 on CH1, and display the
waveform of TP715 on CH2.
2. Adjust VR703 so that the waveform of TP716 will be-
come the same as TP715.
White balance blue adjustment
Measurement conditions: the same conditions as the ad-
justment of "Power supply voltage". / Measuring instrument:
oscilloscope(DC range)
1. Display the waveform of TP716 on CH1, and display the
waveform of TP717 on CH2.
2. Adjust VR704 so that the waveform of TP716 will be-
come the same as TP717.
VCOM AC adjustment
Measurement conditions: the same conditions as the ad-
justment of "Power supply voltage". / Measuring instrument:
oscilloscope
1. Adjust VR700 so that an amplitude of a waveform of
TP705 is 8.0V+0.1/-0.1V, and confirm that there is no
distortion in the waveform.
Display position adjustment
Measurement conditions: the same conditions as the ad-
justment of "Power supply voltage". / Measuring instrument:
oscilloscope
1. Adjust VR402 so that the pulse width of TP42 is
5.4sec.+0.1/-0.1seconds.
8.0V+0.1/0.1V
CH1
CH2
PAL display adjustment
Input signal: PAL Color bar signal
1. Display the wave form of TP717 on CH1,and adjust L703
to focus.
Voltage confirmation of J710
1. Confirm the following voltages.
Pin32(VGH) : 15.0V+0.8/-0.8V
Pin30(CS) : -5.5V+0.8/-0.8V
Pin24(VCC) : -11.9V+0.8/-0.8V
Pin18(VGL) : -10.0V+0.8/-0.8V
Pin1,3(VSH) : 5.3V+0.5/-0.5V
Pin21(VSS) : -17.0+0.8/-0.8V
