Alignment and Adjustment
5-6
Samsung Electronics
Test point
5-3-2 RF AGC Adjustment
Step Adjustment Item
1. Mode and input signal/
alignment tape
2. Test point and ADJ. part
3. Result and Remarks
ADJ. point
5-3-2 (a) ADJUSTMENT PROCEDURES
1. ÒE-EÓ (stop mode), RF signal.
2. TP07 and VR401.
3. Apply PAL color bar signal to the video input
terminal of the TV channel generator and set
channel selector to CH 2 (48.25MHz).
4. Adjust the point signal level so that the output of
attenuator is 70dBu.
5. Apply the output of attenuator to the ANT IN
terminal of VCR.
6. Set the channel of VCR to CH 2.
7. Connect DC voltmeter to TP07.
8. Adjust VR401 for DC 3.7 ± 0.1V.
* Composition for RF AGC adjustment
PAL Color bar
signal out
PAL Pattern
generator
TV CH Generator
CH 2 (48.25MHz)
Attenuator
DC Voltmeter
VCR
ANT IN
TP07
70dBu
GND
CTL
TP01
H'D SW
V.ENV
A.OUT
V.OUT
AGC
SCART CTL
TP02
TP03
TP04
TP05
TP06
TP07
TP08
VR401
Main PCB (Component side)
Summary of Contents for SV-A130B
Page 7: ...Reference Information 2 4 Samsung Electronics 2 2 IC BLOCK 2 2 1 IC601 HD6473977 ...
Page 8: ...Reference Information Samsung Electronics 2 5 2 2 2 IC301 SS11501M SS11511M ...
Page 9: ...Reference Information 2 6 Samsung Electronics 2 2 3 IC302 LA7416 ...
Page 10: ...Reference Information Samsung Electronics 2 7 2 2 4 IC303 SS23377M SS23378M ...
Page 11: ...Reference Information 2 8 Samsung Electronics 2 2 5 IC501 TA1264 ...
Page 12: ...Reference Information Samsung Electronics 2 9 2 2 6 IC502 LA7256 ...
Page 13: ...Reference Information 2 10 Samsung Electronics MEMO ...
Page 23: ...Disassembly and Reassembly 4 8 Samsung Electronics MEMO ...
Page 31: ...Alignment and Adjustment 5 8 Samsung Electronics MEMO ...
Page 41: ...Exploded View and Parts List 6 10 Samsung Electronics MEMO ...
Page 59: ...Electrical Parts List 7 18 Samsung Electronics MEMO ...
Page 61: ...Block Diagrams 8 2 Samsung Electronics 8 1 Overall Block Diagram ...
Page 62: ...Block Diagrams Samsung Electronics 8 3 8 2 System Control ...
Page 63: ...Block Diagrams 8 4 Samsung Electronics 8 3 Video ...
Page 64: ...Block Diagrams Samsung Electronics 8 5 8 4 Hi Fi Audio ...
Page 65: ...Block Diagrams 8 6 Samsung Electronics 8 5 Function Timer ...
Page 66: ...Samsung Electronics 10 1 10 Wiring Diagram ...
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