44
DV-515, DV-414
CN201
CN110
CN201
1, 2
: Focus Error
3, 4
: GND
5, 6
: RF
7
: S REQ
8
: 3.3V
9,10 : Tracking Error
11,12 : VREF (Approx. 2.5V)
13
: VCO DR
14
: Focus Drive(DSP output)
1
5
1
13
2
14
VC301
VC901
1
2
DVDM ASSY
1
IC801
MB86371C
IC904
1
IC302
SIDE A
CN9020
CN9030
CN120
CN1030
Adjustment Points (PCB Part)
Adjustment Items
Dual-trace oscilloscope
(with delay)
Frequency band
≥
40MHz
Frequency counter
Display digit
≥
8-digit
CH1
CH2
(X)
(Y)
6.1 ADJUSTMENT ITEMS AND LOCATION
[Electrical Part]
16MHz Master Clock Adjustment
VCO Offset Adjustment
1
2
6.2 JIGS AND MEASURING INSTRUMENTS
EXCHANGE PCB ASSY
Mechanical
point
Electric
point
Exchange board
DVDM ASSY
Note : and are adjusted already.
Mechanical
point
Electric
point
Exchange board
AVJB ASSY
6.3 NECESSARY ADJUSTMENT POINTS
When
Adjustment Points
Screwdriver (small)
6. ADJUSTMENT