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PDV-LC10
6. ADJUSTMENT
6.1 ADJUSTMENT ITEMS AND LOCATION
Adjustment Points (PCB Part)
PDVDM ASSY
SIDE B
CN601
CN201
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14
13
7
1
2
1
IC901
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)
PD4995A
6.3 NECESSARY ADJUSTMENT POINTS
When
EXCHANGE PCB ASSY
Exchange board
PDVDM ASSY
42
SIDE A
CN401
CN1
BATTERY/
TV TUNER
2
8
1
1
VC901
IC602
PD3410A
IC610
Mechanical
Adjustment Items
[Electrical Part]
16MHz Master Clock Adjustment
1
6.2 JIGS AND MEASURING
INSTRUMENTS
CH1
(X)
Dual-trace oscilloscope
(with delay)
Frequency band ≥ 40MHz
Screwdriver (small)
Adjustment Points
point
Electric
point
Note :
is adjusted already.
CH2
(Y)
Frequency counter
Display digit ≥ 8-digit
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