MDX-F1
8
CIRCUIT DESCRIPTION
Port #
Port Name
I/O
Description
68,69
NC
O
No use
70
PCNTO
O
Power control output port
71
EJECT
O
No use
72
LDON
O
Laser diode on signal port(H:ON)
73
A/B
I
AD/DA converter selector (in or out)
74
SBSY
I
Synchro signal input port
75
DAPON
O
No use
76
DFSO
O
No use
77
DFSI
O
No use
78
5/3
I
GND
79
C/N
I
GND
80
XRST
O
MD LSI reset signal port
81
ADMUTE
O
AD muting port
82
LD+
O
Loading motor positive control port
83
LD-
O
Loading motor negative control port
84
MUTE
O
Muting signal output port
85
DOUT MT
O
No use
86-88
TEST(2-0)
I
No use
89
AVCK3
I
Power supply monitor of motor driver
90
AVCK2
I
Power supply monitor of AD/DC converters
91
AVCK1
I
Power supply monitor of head circuit
92
DTEMP
I
Temperature monitor port
93
MINF
I
Disc, rec window,mechanism position
94,95
TEST(K1-K2)
I
No use
96
GND
-
GND
97
NC
O
No use
98
VREF
I
+3.2V
99
AVCC
I
+3.2V
100
PR
I
GND
** In Tape Mode, 4 seconds recording mode only.
*** FTC & Sub clock Oscillation
a) Check the oscillation(yes or no, period)before FTC test mode.
b) Check is 5 times by 200ms. FTC test mode is carried out if one time is OK.
c) Display shows error message as follows and test mode will be stop.
No oscillation
î
ERR 1
Poor period
î
ERR 2
7-2 Cancel
a. Cancel the test mode and initialize the unit if pull out the power cord from AC outlet.
b. Cancel the test mode only if the power switch is off.
7-3 Operation in Test Mode
a. Muting does not work except power on/off.
b. No display demo mode.
c. Key is different operation from normal mode.
7. Test Mode
7-1 Setting
Mode
Key
Setting
Remarks
AUX
SOUND
TUNER
TUNER
CD
CD PLAY
Insert the AC power cord with pressing
MD -1
MD PLAY
the left key
* TAPE
TAPE PLAY
**TAPE REC key
*** FTC & sub clock oscillation
MENU
MD-2
SET
* Operation & Display in Test Mode
E E E E CrO2 detection
L= sw off (-)
Half detection
FWD misrecord detection
RVS misrecord detection
H= sw off (E)