Note On Replacing The Rom - Sony DSR-300 Service Manual

2-28-2. Note on Replacing the ROM

1. Replacing the ROM (IC703/AT-117 Board)
Note: When replacing the ROM, remove the two
screws, open the AT-117 board, and remove
the IC socket cover while pushing the back
side of ROM.
1 Remove the IC socket cover by pushing it in the arrow
direction until clicking.
2 Replace the former ROM by a new one.
3 Put the IC socket cover while keeping some space at
the arrow A side.
4 While pushing the ROM, push the IC socket cover in
reverse direction of arrow A until it clicks.
AT-117 board
Screws
IC703
ROM IC
DSR-300/P(E)/V1
IC socket cover
ROM IC
A
IC socket cover
Space
ROM IC
Push
A
ROM IC
A
IC socket cover
2. Replacing the EEPROM
After replacing the EEPROM, initialize it using the
following menu.
EEPROM
SY EEPROM on the DPR-99/99P board (IC401)
SP EEPROM on the DPR-99/99P board (IC652)
EEPROM (IC1) on the HN-227 board
EEPROM (IC770) on the RP-91 board
. When the EEPROM (IC1) on the HN-227 board has been
replaced or initialized, perform mechanical adjustments in
the following procedures (Refer to each section for details).
1 8-2-1. Capstan FG-DUTY Adjustment
2 8-2-2. Reel FG-DUTY Adjustment
3 4-38. Reel Table FWD/REV Winding Torque Check
Adjustment
4 5-8. Switching Position Adjustment
. When the EEPROM (IC770) on the RP-91 board has been
replaced or initialized.
Perform an adjustment in the order of menus No.700, 701,
702, and 704 (Refer to section 8-3 RF System Alignment
for details).
. After replacing the EEPROM on the FP-98 board, it is
necessary to perform KY EEPROM ECHO BACK DATA
PRESET using Menu No. 752.
(For details, refer to 2-28-4.)
WARNING
RESET
RESET
(MENU SET)
button
(MENU SET)
REC TIME SKIN DTL EXT VTR MENU ADVANCE
OUTPUT
TTL
ON COMPONENT.
DUR OFF VBS
OFF Y/C
TTL RESET SET PRESET
MONITOR SELECT
VTR
TRIGGER CH-1
MIX
CH-2
PARALLEL
EXT
INT ONLY
DATE/TIME
EXT ONLY
HYPER MATRIX
ClipLink
FRONT MIC
GAIN
CONTINUE
LOW CUT
H.SAT
ON
FL ON
OFF
STD
OFF
MENU button
ADVANCE button
MENU No.
750
751
753
755
Display window (LCD)
LIGHT
OVER dB OVER
PB DATE NDF EXT-LK HOLD
0 ON
OFF
-12
H MIN SEC FRM
-20
CLIP CL CONT IP
DISPLAY
-30
TAPE DVCAM
COUNTER
-40
BATT E F Li ∞
TC
-
F U-BIT
DIAG 1 8 32k 2
RF SERVO HUMID SLACK
F
8 48k
SHIFT
AUDIO LEVEL
F-RUN F-RUN
AUTO
MAN
AUDIO SELECT
REGAIN SET
CH-1 CH-2
LITHIUM BATT
R-RUN
AUDIO IN
MONITOR OUT
FRONT
CHARACTER
VJ MIC
WRR
REAR
ON
OFF
SHIFT button
2-89