ADJUSTMENTS
5
2. RF AGC
• RF AGC CONNECTION METHOD
IF MODULE PCB (TOP VIEW)
• ADJUSTMENT PROCEDURE
1) Connect the circuit as above connection diagram.
2) Set the each equipment setting as above description.
3) Adjust R191 to obtain 6.0 ± 0.2V DC Voltage at check point.
ADJUSTMENT PARTS
CHECKING POINT
TEST EQUIPMENTS
INPUT SIGNAL
P101
Signal Gen.
L191
Oscilloscope
Refer to the following.
PIN
&
Power Supply
(COMPONENT SIDE)
SIGNAL
Modulation Method : 30% AM
fm : 1KHz
fc : 38.9MHz
SIGNAL LEVEL : 95dB
µ
V
POWER SUPPLY
GEN.
OUTPUT
GND
GND
CH1
2.2
µ
/50V
+
GND
0.5mS/DIV
0.1V/DIV(10:1)
+9V
+5V
R191
L101
9
P102
1 9
P101
1
Summary of Contents for DV-K*04W Series
Page 71: ...CIRCUIT DIAGRAMS 68 SECTION 9 CIRCUIT DIAGRAM 9 1 CONNECTION DIAGRAM DV K884W K484W K284W ...
Page 72: ...CIRCUIT DIAGRAMS 69 9 2 POWER CIRCUIT DIAGRAM DV K884W K484W K284W ...
Page 73: ...CIRCUIT DIAGRAMS 70 9 3 SYSCON AND LOGIC CIRCUIT DIAGRAM ...
Page 74: ...CIRCUIT DIAGRAMS 71 9 4 PIF CIRCUIT DIAGRAM DV K884W K484W K284W ...
Page 75: ...CIRCUIT DIAGRAMS 72 9 5 IF MPX MODULE CIRCUIT DIAGRAM DV K884W K484W K284W ...
Page 76: ...CIRCUIT DIAGRAMS 73 9 6 VIDEO AUDIO CIRCUIT DIAGRAM DV K884W K484W K284W ...
Page 77: ...CIRCUIT DIAGRAMS 74 9 7 Hi Fi PRE AMP CIRCUIT DIAGRAM DV K884W K484W K284W ...
Page 78: ...DISASSEMBLY 79 SECTION 11 DISASSEMBLY 11 1 PACKING ASS Y ...