Kenwood KDC-MP638U Service Manual page 14

KDC-MP638U/W7041U
/W7141UY/X692/X7009U
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
38 PWM_MULTI
39 NC (DDI)
40 NC (DDO)
41 NC (DCK)
42 NC (DMS)
43~48 NC
49 FL LAT
50 FL_DATA3
51 CLK IN3
52,53 NC
54 FL_BK
55 REMO
56~58 NC
59 ROMCOR_SDA
60 ROMCOR_SCL
61 NC
62~76 A1-A15
77 PON_TRI_GREEN
77 NC
78 PON_TRI_RED
79 LED GREEN
79 NC
80 PON_RED, BLUE
81,82 NC
83 CE
84~92 NC
93 PON_FL+B
94 PON SW3.3V
95~98 NC
99 OE
100 MULTI CW
101 MULTI CCW
102 NC
103 BVSS
14
I/O Application
O Illumi control of MULTI
O JTAG terminal
O JTAG terminal
O JTAG terminal
O JTAG terminal
O
O FL Latch control
O FL Serial control data SI3
I Serial sync clock input
O
O FL BK control
I Remote controller signal input
O
I/O For ROM correction
I/O For ROM correction
O
O Address output
O Triangle green light on switch
O Not used (No display blackout)
O Triangle red light on switch
O Green key illumi light on switch
O Not used (No illumi switching)
O Red and Blue key illumi light on switch
O
I/O Memory operation permission
O Not used
O FL bias power supply switch
Kanji ROM, ROM correction
I/O
Rotary encoder (3.3V) power supply
O
I/O Memory data transmission permission
I Rotary 2 B input (For new operation)
I Rotary 2 A input (For new operation)
O Not used
Processing / Operation / Description
LED ON: HI
LED OFF: LOW
JTAG terminal, Mask is open.
JTAG terminal, Mask is open.
JTAG terminal, Mask is open.
JTAG terminal, Mask is open.
Output LOW fi xed
Latch as Hi level.
Sync to FL_CLK
Output LOW fi xed
L: FL goes on, H: FL goes off
Detect with pulse width
Output LOW fi xed
Input during operation other than writing opera-
tion (including STB)
Hi-Z: When starting up SW3.3
Input during operation other than writing opera-
tion (including STB)
Hi-Z: When starting up SW3.3
Output LOW fi xed
H: Turn on, L: Turn off Turns on during blackout
Output LOW fi xed
H: Turn on, L: Turn off
H: Turn on, L: Turn off
Output LOW fi xed
H: Turn on, L: Turn off
Output LOW fi xed
L: Operate, H: Wait
Hi-Z: Only when starting up SW3.3
Output LOW fi xed
H:ON, L:OFF
L:ON, Hi-Z:OFF
Output LOW fi xed
L: Send data, H: Wait
Hi-Z: When starting up SW3.3
1 pulse/2 clicks
15 pulses/360°
1 pulse/2 clicks
15 pulses/360°
Output LOW fi xed