Sony KV-28HX15U, Service Manual

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Sub Colour Adjustment
1. Receive a PAL colour bar signal.
2. Connect an oscilloscope to Pin 5 of CN003 [A Board].
3. Set the TV set for operation in Service Mode.
[ See Page 21 ].
4. Select ‘Service’ from the on screen menu display and press
‘Right Arrow’.
5. The ‘Service’ menu will appear on the screen.[See Page 21]
6. Adjust the ‘Sub Colour’ so that the Cyan, Magenta and Blue
colour bars are of equal levels as indicated below.
Same Level
B-Out Waveform
Sub Brightness Adjustment
1. Input a Monoscope pattern.
2. Set the TV set or operation in Service Mode. [ See Page 21 ].
3. Select ‘Service’ from the on screen menu display and press
‘Right Arrow’.
4. The ‘Service’ menu will appear on the screen. [See Page 21].
5. Adjust the ‘Sub-Brightness’ data so that there is barely a
difference between the 0 IRE and 10 IRE signal levels.
1. Input a video signal that contains a small 100% white area on a
black background.
2. Connect an digital voltmeter to Pin 10 of J701 [C Board].
3. Set the TV set or operation in Service Mode.
[ See Page 21 ].
4. Select ‘Service’ from the on screen menu display and press
‘Right Arrow’.
5. The ‘Service’ menu will appear on the screen.[See Page 21]
6. Adjust the Sub-Contrast to obtain a voltage of 105 +/- 5V.
Sub Contrast Adjustment
1. Set the TV set or operation in Service Mode [ See Page 21 ]
and enter into the ‘Geometry’ service menu.
2. Select and adjust each item in order to obtain the optimum image.
Deflection System Adjustment
V SIZE
V LINEARITY
V BOW
V CENTRE
H CENTRE
H SIZE
PIN AMP
PIN PHASE
U CORNER PIN
V ANGLE
L CORNER PIN
Y R T E M O E G
y t i r a e n i L - V
ll o r c S - V
k l B H - t f e L
k l B H - t h g i R
e l g n A - V
w o B - V
e r t n e C - H
e z i S - H
p m A - n i P
n i P - r e n r o C - U
n i P - r e n r o C - L
e s a h P n i P
e p o l S - V
e z i S - V
n o i t c e r r o C - S
e r t n e C - V
m o o Z - V
a t n e g a M
) 3 6 , 0 (
) 3 6 , 0 (
) 5 1 , 0 (
) 5 1 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
) 3 6 , 0 (
j d A
2 3
0 1
7
j d A
j d A
j d A
j d A
j d A
j d A
j d A
j d A
0 4
j d A
j d A
j d A
7 2
1 3