![background image](http://html.mh-extra.com/html/sony/hcd-md515-component-for-dhcmd515/hcd-md515-component-for-dhcmd515_service-manual_420815069.webp)
– 105 –
•
RM BOARD IC1
MB89191PF-195 (KEY CONTROLLER)
Pin No.
Pin Name
I/O
Function
1 to 3
IN4 to IN6
I
Key input terminal
“L”: active *1
Detection input from power source (HCD-MD515/dry battery)
4
EXT
I
“H”: HCD-MD515, “L”: dry battery
Fix at “H” to the LED OUT (pin
!º
) when “H”
5
I
Not used (fixed at “L”)
6
RESET
I
Reset signal input from external circuit when the EXT (pin
4
) status changed
7
XO
O
Main system clock output terminal (3 MHz)
8
XI
I
Main system clock input terminal (3 MHz)
9
VSS
—
Ground terminal
10
LED OUT
O
SIRCS signal output to the infrared emitter (D1)
“L”: active
Fixed at “H” when the EXT (pin
4
) is “H”
11
SIRCS
O
Wired SIRCS signal output to the HCD-MD515
“L”: active
12
VOL A
I
JOG dial pulse input from rotary encoder (RV2)
13
JOG A
I
JOG dial pulse input from rotary encoder (RV1)
14
VOL B
I
JOG dial pulse input from rotary encoder (RV2)
15
JOG B
I
JOG dial pulse input from rotary encoder (RV1)
16, 17
I
Not used (fixed at “L”)
18 to 21 OUT0 to OUT3
O
Key output terminal
“L”: active *1
22, 23
I
Not used (fixed at “L”)
24 to 27
IN0 to IN3
I
Key input terminal
“L”: active *1
28
VCC
—
Power supply terminal (+2.4V)
OUT 0 (pin
!•
)
OUT 1(pin
!ª
)
OUT 2 (pin
@º
)
OUT 3 (pin
@¡
)
IN 0 (pin
@¢
)
REC/CD-MD SYNC
REC IT
DISC SKIP
CD LOOP
IN 1 (pin
@∞
)
0
)
MD/CD 3
IN 2 (pin
@§
)
EDIT/NO
ENTER/YES
TAPE
MD
IN 3 (pin
@¶
)
POWER
PRESET EQ
TIMER SET
TIMER SELECT
IN 4 (pin
1
)
p
(P
MD/CD 2
MD/CD 1
IN 5 (pin
2
)
DISP
FUNCTION
BAND, TUNER
CD
IN 6 (pin
3
)
STEREO/MONO
REPEAT
PRESET
PROGRAM
AUTO
SHUFFLE
MANUAL
CONTINUE
*1 Key matrix
Summary of Contents for HCD-MD515 - Component For Dhcmd515
Page 2: ... 2 SELF DIAGNOSTICS ...
Page 7: ... 7 This section is extracted from instruction manual ...
Page 30: ......
Page 31: ......
Page 32: ......
Page 33: ......
Page 34: ......
Page 35: ......
Page 36: ......
Page 37: ......
Page 38: ......
Page 39: ......
Page 40: ......
Page 41: ......
Page 42: ......
Page 43: ......
Page 44: ......
Page 45: ......
Page 46: ......
Page 47: ......
Page 106: ......
Page 107: ......