Hitachi DZ-GX20A Service Manual page 24

Description of Operation > Explanation on Structure / Description of Newly Adapted Technology
(2) Configuration of circuit boards and their mounting locations
1) Comparison between DZ-GX20A, DZ-MV780A and DZ-MV730A
The configuration and locations of circuit boards in DZ-GX20A, DZ-MV780A and DZ-MV730A are
identical, except for whether the SHE-H/SHE-M board is provided or not.
The SHE-H/SHE-M circuit board is used for the accessory shoe control terminal.
The DZ-MV730A does not use the SHE-H/SHE-M circuit board, because it does not have a control
terminal for the accessory shoe.
2) Comparison between new models and DZ-MV580A
The new models are identical except for the following circuit boards:
GSL-H/GSL-M/GSL-L circuit board:
The CCD image sensor mounting board (SEN-H) and camera shake detection gyro
mounting board (GYR-H), which were discrete in DZ-MV580A, have been integrated into
one circuit board.
AVJ-H/AVJ-M circuit board:
The AV/S input/output, PC connection and external microphone terminals, which were
mounted on separate boards in DZ-MV580A, have been integrated into one circuit board
of front side.
FRT-H/FRT-L/
Disc drive
FRT-M circuit
unit
board
Fig. 3-1-2 Configuration of circuit boards and their mounting locations
MR circuit
board in the
LCD unit
AVJ-H/AVJ-L/
AVJ-M circuit
board
AV/S input/
output jack
External
microphone
jack
PC connection
terminal
3 - 2
Lens unit
GSL-H/GSL-L/
GSL-M circuit
board
AEL
circuit
board
LCD circuit board
in the LCD unit
SHE-H/SHE-M
circuit board
(DZ-GX20A/
MV780A only)
EVF unit
DRF-H/DRF-L/
DRF-M circuit
board
MAN
circuit
board