Sony HCD-MD515 - Component For Dhcmd515 Service Manual page 69

RM BOARD IC1 MB89191PF-195 (KEY CONTROLLER)
Pin No. Pin Name I/O
1 to 3 IN4 to IN6 I
4 EXT I
5 I
6 RESET I
7 XO O
8 XI I
9 VSS —
10 LED OUT O
11 SIRCS O
12 VOL A I
13 JOG A I
14 VOL B I
15 JOG B I
16, 17 I
18 to 21 OUT0 to OUT3 O
22, 23 I
24 to 27 IN0 to IN3 I
28 VCC —
*1 Key matrix
OUT 0 (pin!•)
REC/CD-MD SYNC
IN 0 (pin@¢)
IN 1 (pin@∞)
IN 2 (pin@§)
IN 3 (pin@¶)
IN 4 (pin1)
IN 5 (pin2)
STEREO/MONO
IN 6 (pin3)
Key input terminal "L": active *1
Detection input from power source (HCD-MD515/dry battery)
"H": HCD-MD515, "L": dry battery
Fix at "H" to the LED OUT (pin !º) when "H"
Not used (fixed at "L")
Reset signal input from external circuit when the EXT (pin 4) status changed
Main system clock output terminal (3 MHz)
Main system clock input terminal (3 MHz)
Ground terminal
SIRCS signal output to the infrared emitter (D1) "L": active
Fixed at "H" when the EXT (pin 4) is "H"
Wired SIRCS signal output to the HCD-MD515 "L": active
JOG dial pulse input from rotary encoder (RV2)
JOG dial pulse input from rotary encoder (RV1)
JOG dial pulse input from rotary encoder (RV2)
JOG dial pulse input from rotary encoder (RV1)
Not used (fixed at "L")
Key output terminal "L": active *1
Not used (fixed at "L")
Key input terminal "L": active *1
Power supply terminal (+2.4V)
OUT 1(pin!ª)
REC IT
0 )
EDIT/NO ENTER/YES
POWER PRESET EQ
p (P
DISP FUNCTION
PRESET
REPEAT PROGRAM
Function
OUT 2 (pin@º)
DISC SKIP
TAPE
TIMER SET
MD/CD 2
BAND, TUNER
AUTO
SHUFFLE
– 105 –
OUT 3 (pin@¡)
CD LOOP
MD/CD 3
MD
TIMER SELECT
MD/CD 1
CD
MANUAL
CONTINUE