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4-6-35. Preparation For
The REC Adjustment (25M)
1.
USER MENU Setting
012 SYS FORMAT :
2.
Open the Service Menu.
411
4-6-36.REC Current And Frequency
Characteristic Adjustment (25M Lch)
Board
RF EQ(H3)
Specification
Test Point
TP104, TG101, TP2, TG1
Adjustment
Service Menu
Point
Input Signal
INT SIG color bar
Mode
REC
Tape
R/P Tape
M.EQ
Spectrum Analyzer
1. Connect the Spectrum Analyzer to the TP104(H3).
EXT TRIG. : TP2 (H3)
RECALL : REG 2
GND : TG101
2. Insert a R/P Tape and record a color bar signal.
3. Set the values as follows.
E02 REC FREQ L1 -100
E04 REC FREQ L2 -100
4. Change the item E01 REC CURR L1 and E03
REC CURR L2 until just achieve the saturation
level at 2.5MHz.
The level at 2.5MHz
The saturation point
REC CURR EVR VALUE
5. Adjust E02 REC FREQ L1 and E04 REC FREQ
L2 so that the level at 10MHz is maximum.
6. Store the signal in the TRACE-B.
7. Adjust following items so that the waveform
becomes TRACE-A of the following figure.
Adjustment items
E01 REC CURR L1 , E03 REC CURR L2
E02 REC FREQ L1 , E04 REC FREQ L2
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