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2-10. Replacement of Circuit Board
2-10-1. Note on Replacement of Parts in RP-
108 and NR-66 Boards
Electrical parts mounted on the RP-108 and NR-66 boards
used in the CCD unit cannot be replaced.
If the electrical parts is out of order, replace the whole of
mounted circuit boards RP-108 and NR-66.
2-10-2. Description on EEPROM Data
The table below gives the stored data of EEPROM on
every printed circuit board.
Board
Ref.No.
Stored data
VA-158
IC29
VA-158 adjustment data, Board name
MX-59
IC8
MX-59 adjustment data, Board name
PR-200
IC16
PR-200 adjustment data, Board name
DL-65
IC714
Board name
IE-44
IC612
IE-44 adjustment data, Board name
IF-569
IC38
Reference file, Board name
MB-570
IC1
Camera ID
n
The IC listed above cannot be replaced because it is the
EEPROM that is storing data inherent in the board. The
part number listed in Section 1 "Spare Parts" of HDC-
750A maintenance manual volume 2 is for EEPROM
which is not programmed. If replacement is needed,
consult your Sony representatives.
HDC-750A
2-10-3. Adjustment after Replacement of
Board
When replacing some electrical parts on the circuit board,
or the circuit board itself, be sure to perform the following
adjustments after replacement. If no adjustment item is
listed, no adjustment is required.
Board/Block
For Part
Replacement
VA-158
4-3. VA-158 Board
Adjustment
MX-59
——
PR-200
——
DL-65
4-6. IE-44 Board
Adjustment
IE-44
4-6. IE-44 Board
Adjustment
IF-569
——
PS-419
——
MB-570
——
DC/DC converter
——
DRIVER Board
4-2. Filter Drive Board
Adjustment
CCD Unit
4-3. VA-158 Board
Adjustment
2-10-4. Replacement of IF-569 Board
When the IF-569 board, replace the lithium battery
(CR2025) with a new one at the same time. The lithium
battery is commercially available. When installing, connect
it properly referring to Section 2-17. And make sure that
the switch S1-2 on a new IF-569 board is set to ON, too.
Refer to Section 1-4 for details on the switch.
2-10. Replacement of Circuit Board
For Board
Replacement
4-3-2. VA Gain
Adjustment
——
——
4-6-2. Video Level
Adjustment
4-6-2. Video Level
Adjustment
4-7. Overall Video
Adjustment
——
——
——
4-2. Filter Drive
Adjustment
4-3-2. VA Gain
Adjustment
2-11 (E)
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