5. RF AGC
• Connection Method
• Adjustment Procedure
1) Turn on the VCR. Tuning CH21 (471.25MHz)
2) Connect the signal generator output (PM5418 pattern Gen) to ANT INPUT of RF102 (Modulator)
3) Connect the oscilloscope to JPT02
4) Adjust R190 to obtain 6.0±0.2V DC.
15
CH-1
Oscilloscope
MAIN PCB
RF Signal : PAL B/G (Color Bar or 100% white)
CH : 21 CH (471.25MHz)
UHF BAND
RF102
RF101
JPT02
RF103
R190
6.0±0.2V
Input Level : 60 dBµV (I)
63 dBµV (B/G)
(75 ohm Loaded)
RF OUT
PM5418
Modulator ANT IN
Adjustment Parts
Checking Point
Measuring Equipment
Condition of Adj.
Input Signal
R190
JPT02
Oscilloscope
EE Mode
Refer to the
PM5418 Gen
followings
Summary of Contents for DV-F882DY-C
Page 42: ...39 SECTION 4 CIRCUIT DIAGRAM 4 1 CONNECTION DIAGRAM CIRCUIT DV F802 Series...
Page 43: ...40 4 2 CONNECTION DIAGRAM CIRCUIT DV F882 Series...
Page 44: ...41 4 3 POWER CIRCUIT...
Page 45: ...42 4 4 SERVO LOGIC CIRCUIT...
Page 46: ...43 4 5 LOGIC CIRCUIT DV F802 Series...
Page 47: ...44 4 6 LOGIC CIRCUIT DV F882Series...
Page 48: ...45 4 7 HEAD AMP CIRCUIT...
Page 49: ...46 4 8 VIDEO CIRCUIT...
Page 50: ...47 4 9 Hi Fi AUDIO...
Page 51: ...48 4 10 PIF NICAM MODULE...
Page 52: ...49 4 11 PIF MPX CIRCUIT 2 CARRIER...
Page 53: ...50 4 12 PIF CIRCUIT...
Page 54: ...51 4 13 OSD CIRCUIT...
Page 55: ...52 4 14 VPS PDC CIRCUIT...
Page 56: ...53 4 15 IN OUT SW CIRCUIT I...
Page 57: ...54 4 16 IN OUT SW CIRCUIT II...
