Circuit Adjustments; Electrical Adjustments - Sony KV-28DS20U Service Manual

4-1. ELECTRICAL ADJUSTMENTS

Service adjustments to this model can be performed
using the supplied Remote Commander RM-888.
HOW TO ENTER INTO SERVICE MODE
1. Turn on the main power switch and enter into the stand-by
mode.
2. Press the following sequence of buttons on the Remote
Commander.
+
5
(ON SCREEN (DIGIT 5)
DISPLAY)
• 'TT--' will appear in the upper right corner of the
screen.
Other status information will also be displayed.
3. Press 'MENU' on the remote commander to obtain the
following menu on the screen.
TEST MENU
> Picture Adjustment
Geometry
Wide
IC status
MSP
Dynamic Convergence
Current TV status
4. Move to the corresponding adjustment using the button on the
remote commander.
5. Press the + button to enter the selected adjustment.
6. Turn off the power to quit the service mode when adjustments
have been completed.
SECTION 4

CIRCUIT ADJUSTMENTS

+
+
(VOLUME ) (TV)
PICTURE ADJUSTMENT
AFC mode
REF position
SCP BGR
SCP BGF
Trap fo
Sub contrast
Sub colour
Sub brightness
Green drive
Blue drive
Green cutoff
Blue cutoff
Gamma
Pre / overshoot
Y delay
D Pic
D Colour
DC Transfer
GEOMETRY ADJUSTMENT - 4:3
V size
V position
S Correction
V Linearity
H size
H position
Pin Amp
Pin Phase
AFC Bow
AFC Angle
EHT V
EHT H
Lo Corn Pin
Up Corn Pin
WIDE ADJUSTMENT - 4:3
V Aspect
V Scroll
Upper V Lin
Lower V Lin
Left Blanking
Right Blanking
27
1
3
1
1
9
Adj
Adj
Adj
Adj
Adj
Adj
Adj
0
0
3
ON/OFF
ON/OFF
ON/OFF
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
1
0
Adj
Adj
0
25
0
0
1
11