Sony MDDISCAM DCM-M1, Service Manual

Page: 161 / 198

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1-7. Other Checking
1. Switch Check
In the Switch Check mode, even pressing the
x
key cannot re-
lease the Switch Check mode. To exit from this mode, turn the
power off.
Checking method
1) Select the item number “7-02-01”.
2) Press
u
key to activate the Switch Check mode.
(The screen display becomes as shown in Fig.7-1-29, and the
detection status of each switch on the set, LCD switch, and
mecha. deck switch is displayed)
Fig.7-1-29
3) Check that each switch is detected normally.
(See Table below. For the mecha. deck switch, see “Mecha.
Deck Block Simple Check”)
• SET switch
Display Condition
COVER OPEN Disc lid is OPEN
CLOSE Disc lid is CLOSE
EJCT SW ON DISC EJECT switch ON
OFF DISC EJECT switch OFF
• LCD switch
Display LCD panel Condition
LCD NORMAL/CLOSE NORMAL/CLOSE
NORMAL/OPEN NORMAL/OPEN
REVERS/CLOSE REVERSE/CLOSE
REVERS/OPEN REVERSE/OPEN
• MECHANISM DECK switch
Display Remark
IN LIMIT SW Condition of OPTICAL PIC-UP in limit
switch
INITIAL SW Condition of REC HEAD initial position
detect switch
MD1/MD2 Condition of MD1/MD2 detect switch
PIT/GRV Condition of REFLECT switch
PROTECT Condition of PROTECT detect switch
SW CHECK MODE
REVERSE/CLOSE
COVER CLOSE
OFF EJECT SW
IN LIMIT SW
INITIAL SW
MD1/MD2
PIT/GRV
PROTECT SW OFF
OFF
MD2
GRV
ON
LCD
Mecha. deck switch status display
LCD switch status display
Set switch status display
2. Key Check
In the Key Check mode, even pressing the
x
key cannot release
the Key Check mode. To exit from this mode, turn the power off.
Checking method
1) Select the item number “7-02-01”.
2) Press
u key to activate the Switch Check mode.
3) From the Switch Check mode, press
u
key to activate the
Key Check mode. (The screen display becomes as shown in
Fig.7-1-30)
Fig.7-1-30
4) Check that the POWER switch detection status displayed at
part
A
is normal. (See Table below)
Display Condition
PLAY/EDIT MODE PLAY/EDIT position
MODE OFF OFF position
Camera MODE CAMERA position
Interview MODE INTERVIEW position
5) Check that a numeric value displayed at part B decreases if
the control dial is rotated clockwise, or increases if counter-
clockwise.
KEY CHECK MODE
ssssss
000
PLAY/EDIT MODE
A Power switch status display
C control dial status display
B Set key status display