JVC TM-H150CG/E Service Manual page 33

Measuring
Item
instrument
RGB BRIGHT Component /
RGB input
card
(IF-C01COMG)
Signal
generator
RGB Component /
CONTRAST RGB input
card
(IF-C01COMG)
Signal
generator
Oscilloscope
75%
WHITE W Y Cy G
Test points Adjustment part
[SIGNAL BLOCK]
S07 : RGB BRIGHT
TP-47G [SIGNAL BLOCK]
TP-E S08 :
[CRT SOCKET RGB CONTRAST
PWB]
Mg R B BL
V =(34 2)V
75-BL
Adjustment procedure
(1) Input the whole black signal to the each terminal of
the Component / RGB input card.
(2) In case of using the composite sync. signal, input the
sync. signal to the HD/Cs terminal only. But in case
of using the separate sync. signal, input the
horizontal sync. signal to the HD/Cs terminal and
vertical sync. signal to the VD terminal.
(3) Select the INPUT SELECT < SLOT D >.
(4) Select the SIGNAL BLOCK.
(5) Select the < S07 >(RGB BRIGHT).
(6) Adjust the < S07 > to where the sprit color bar 0%
black component faintly brightens.
(7) Check it out by pressing the [DISP] button on and off.
(1) Input the RGB color bar signal (75% white) to the
each terminal of the Component / RGB input card.
(2) In case of using the composite sync. signal, input the
sync. signal to the HD/Cs terminal only. But in case
of using the separate sync. signal, input the horizon-
tal sync. signal to the HD/Cs terminal and vertical
sync. signal to the VD terminal.
(3) Select the INPUT SELECT < SLOT D >.
(4) Connect the oscilloscope to TP-47G and TP-E.
(5) Select the SIGNAL BLOCK.
(6) Select the < S08 >(RGB CONTRAST).
(7) Adjust the < S08 > to become the voltage different
between 75% white and blue to 34V±2V as shown in
figure.
(No.YA068)1-33