4-3-10 RF AGC Adjustment
1. Connect a pattern generator (PM5418) RF sig-
nal to tuner RF.
2. Select a gray scale pattern and PAL-B/G sys-
tem. Set to 479.25MHz.
3. Connect IC201 (ONECHIP) pin 53 to a digital
multimeter.
4. Adjust AGC (using volume keys)in the
Factory Service Mode. Set IC201 (ONECHIP)
pin 54 to 3.7 + 0.05V (DC).
5. Adjust AGC within 20 seconds after power
ON.
4-3-11 Sub-Color Adjustment
Set the SCR data steps to 15 in the Factory Mode.
4-3-12 Geometry Adjustment
(SC
→
PVA
→
PVS
→
PSL
→
PHS)
1. Input a lion head pattern (in the PAL channel).
2. Set the SC (S-Correction) 10 data steps and
PSL 20 data steps so that the lion head circle
becomes oval.
3. Adjust with PVS (Vertical-shift) : Lion head
pattern and mechanical centers must be
aligned.
4. Adjust with PVA (Vertical-Amplitude) : Top
margin of the picture is 4.
Fig. 4-7
5. Adjust with PSL (Vertical-Slope) : Bottom mar-
gin of the picture is 4.
Fig. 4-8
6. Adjust with PHS (Horizontal Shift) : Lion
head pattern and CRT centers are aligned.
Fig. 4-9
7. Adjust PHS (using the width coil) so that left
and right margins of the picture are 5.
Alignment and Adjustments
Samsung Electronics
4-19
4
4
5
5
_
Summary of Contents for CK331EZR4X/BWT
Page 2: ...ELECTRONICS Samsung Electronics Co Ltd MAY 1998 Printed in Korea 3SCT13B 31K101 ...
Page 10: ...2 4 Samsung Electronics MEMO ...
Page 14: ...3 4 Samsung Electronics MEMO MEMO ...
Page 34: ...MEMO 4 20 Samsung Electronics ...
Page 47: ...10 2 Samsung Electronics MEMO ...
Page 48: ...Schematic Diagrams 11 1 Samsung Electronics 11 Schematic Diagrams 11 1 TTX Micom ...
Page 49: ...Schematic Diagrams 11 2 Samsung Electronics 11 2 W O TTX Micom ...
Page 50: ...Schematic Diagrams 11 3 Samsung Electronics 11 3 ONE CHIP CHROMA Block ...
Page 51: ...Schematic Diagrams 11 4 Samsung Electronics 11 4 IF Sound EXT A V Block ...
Page 52: ...Schematic Diagrams 11 5 Samsung Electronics 11 5 Power Vertical Horizontal CRT ...
Page 53: ...Schematic Diagrams 11 6 Samsung Electronics 11 6 A V Front SUB ...
