Sony CineAlta HDCAM HDW-F900R, Maintenance Manual, Page: 73 / 546

1-63
HDW-F900R/V1 (E)
1-25. How to Replace the Photo Sensors
on the MDC-13G Board
The four photo sensors (PH301 to PH304) are installed on
the MDC-13G board of this unit.
To replace these photo sensors, the accurate position
setting of the sensors is required with the use of the DIF-
110 sensor mount tool.
Required tool : DIF-110 sensor mount tool
(Part No. J-6531-100-A)
n
If the sensors are not mounted in the correct positions, the
cam gear position will not be correctly detected, which that
causes malfunction of the unit.
MDC-13G board (B side)
1. Remove soldering from the photo sensor that you want
to replace and remove the photo sensor.
2. Place a new photo sensor on a solder land tentatively.
Be careful to place a new photo sensor in the correct
direction. (Refer to the illustration below.)
3. Align the two projections of the sensor mount tool
with the holes of the board.
4. Solder the two leads of a photo sensor tentatively.
5. Remove the sensor mount tool and solder the four
leads of the photo sensor.
H
G
F E D
C
B
A
1
2
3
4
5
6
PH301
PH303
PH304
PH302
Photo sensor
White line on
the photo sensor
Silk screen on the
board (Thick line)
Sensor mount tool
Projection
Hole
Hole
Projection
Hole of the sensor
mount tool
Hole of the sensor mount tool
Solderings
(two leads tentatively)
Photo sensor
Solderings
Solderings