Service manual

15
29H-FG5RU
15-1
15-2
PAL CHROMA ADJUSTMENT
No.
Adjustment point
Adjustment conditions/procedure Waveform or remarks
SUB COLOUR
(I
2
C BUS
CONTROL)
1. Receive the "PAL Color Bar" signal.
2. Make the image normal with the remote control-
ler.
3. Connect the oscilloscope to TP48R (IC851 #9).
( Use Probe 10:1)
Range : 2 V/Div
Sweep Time : 20 µsec/Div
4. Set the sub color adjustment mode with the re-
mote controller, and vary the sub color data to
make 100% W of the color bar and RED at the
same level for adjustment shown in Fig. 1-1.
1
Fig. 1-1
Cy G B
75% W
YMgR100% W
No.
Adjustment point
Adjustment conditions/procedure Waveform or remarks
SUB-TINT
( I
2
C BUS
CONTROL)
1.Receive the "NTSC 3.58 Colour Bar" signal
through AV IN.
2. Connect the oscilloscope to TP47B (P860 Pin6)
BLUE-OUT.
» Range : 100mV/Div. (AC)(Use Probe 10:1)
» Sweep time : 10 µsec/Div.
3. Select the "SUB-TINT" item in the ADJUSTMENT
MODE.. Adjust the "SUB-TINT" data to obtain the
waveform shown as Figure 1.1 (W and Mg same
level)
1
NTSC CHROMA ADJUSTMENT
HORIZONTAL AND VERTICAL DEFLECTION LOOP ADJUSTMENT
No.
Adjustment point
Adjustment conditions/procedure Waveform or remarks
VHOR-SHI-N60 Align the center of the screen to the geometric center
of CRT. (monoscope)
EW-W-N60 Align the center of the screen to the geometric center
of CRT. (monoscope)
NOTE :
There are no separate adjustment for 16:9 mode
and Normal mode adjustment.
The 16:9 (Panorama mode 50/60Hz) data need to
follow the adjusted data for Normal mode (50/
60Hz). Please set the data as below.
VER-AMP-P50 = VER-AMP-N50
VER-SHI-P50 = VER-SHI-N50
HOR-SHI-P50 = HOR-SHI-N50
EW-W-P50 = EW-W-N50
VER-AMP-P60 = VER-AMP-N60
VER-SHI-P60 = VER-SHI-N60
HOR-SHI-P60 = HOR-SHI-N60
EW-W-P60 = EW-W-N60
Cy
Same Level
GYW
Mg BR
HORIZONTAL AND VERTICAL DEFLECTION LOOP ADJUSTMENT
No.
Adjustment point
Adjustment conditions/procedure Waveform or remarks
V-SLOPE Adjust V-Slope by Volume Up / Down Remote Control.
Refer to Fig. 1.1. (monoscope)
VER-AMP-N50 Adjust the overscan to 8.5%. (monoscope)
VER-SHI-N50 Align the center of the screen to the geometric center
of CRT. (monoscope)
HOR-SHI-N50 Align the center of the screen to the geometric center
of CRT. (monoscope)
EW-W-N50 Adjust the overscan to 8.5%. (monoscope)
V-LINE Adjust the linearity to the best. (monoscope)
V-S CORR Already preset.(Adjust this unless the linearity is
achieved.) (monoscope)
V-SCROLL Already preset..
VX-NORMAL Already preset .
H-PAR Adjust the 2nd vertical line from the end of the
crosshatch pattern. Refer to Fig 1.6. (crosshatch)
H-BOW Adjust the 2nd vertical line from the end of the
crosshatch pattern. Refer to Fig 1.7. (crosshatch)
E/W-PAR Adjust the 2nd vertical line from the right end of the
crosshatch pattern so that the middle 4 blocks are
straight. Refer to Fig 1-2. (crosshatch)
UPCOR-PAR Adjust the 2nd upper vertical line from the right end
of the crosshatch pattern so that the upper line are
straight. Refer to Fig 1-3. (crosshatch)
LOCOR-PAR Adjust the 2nd lower vertical line from the right end
of the crosshatch pattern so that the bottom line are
straight. Refer to Fig 1-4. (crosshatch)
EW-TRAP Adjust the 2nd vertical line from the right end of the
crosshatch pattern so that the D1 (center area of the
second vertical line - edge of screen) and D2 (top
area of the second vertical line - edge of screen) are
same. Refer to Fig 1-5. (crosshatch)
VER-AMP-N60 Adjust the overscan to 10%. (monoscope)
VER-SHI-N60 Align the center of the screen to the geometric center
of CRT. (monoscope)
1
MAIN SCREEN
ADJUSTMENT
D2
D1
Fig. 1-2
Fig. 1-3
Fig. 1-4
Fig. 1-5
H-PAR
H-BOW
Fig. 1-6
Fig. 1-7
A
B
C
A : Out of spec
B : OK
C : Out of spec