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Kenwood KDC-MP832U Service Manual page 14

Cd receiver
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KDC-MP832U
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No.
Pin Name
95
OE
96,97
NC
98
3.3VDD
99
VSS
100
FROMCHK
100
NC
101
CE
102~104 NC
105
ROMCOR_SCL
106
ROMCOR_SDA
107
NC (SEL_E2P)
108
PON_TRI_GREEN I/O
109
PON_TRI_RED
110
PON_BLUE
111
SA_RST
112
3.3VDD
113
EVSS
114
PON_GREEN
115
PON_RED
116
PON_SW3V
117
NC
118~123 A21~16
124
2.5VDD
125
VSS
126~133 A15~A8
134
3.3VDD
135
EVSS
136~142 A7~A1
143
NC
144
D15
14
I/O
Application
I/O
Memory data transmission permission
O
Not used
For product technology implementation
O
checking
O
Not used when MASKROM
I/O
Memory operation permission
O
Not used
I/O
For ROM correction
I/O
For ROM correction
O
Not used
Triangle green light on switch
I/O
Triangle red light on switch
I/O
Blue sub illumi light on switch
O
Spectrum analyzer IC reset
I/O
Green LED light on switch
I/O
RED LED light on switch
Kanji ROM, ROM correction
I/O
rotary encoder power supply
O
Not used
O
Address output
O
Address output
O
Address output
O
Not used
I/O
Data input/output
Processing/Operation/Description
L: Send data, H: Wait, Hi-Z when starting up at SW3.3
Output L fixed
Repeat H and L before finalizing
OK: H, NG: L (checkland needed)
Refer to the Test Mode Specification
Output L fixed
L: Operate, H: Wait, Hi-Z when starting up at SW3.3
Output L fixed
Input when other than writing in (including STB)
Hi-Z when starting up at SW3.3
Input when other than writing in (including STB)
Hi-Z when starting up at SW3.3
Output L fixed
H: ON, Hi-Z: OFF, On when blackout
H: ON, Hi-Z: OFF
H: ON, Hi-Z: OFF
H: Reset, L: Normal (spectrum analyzer IC's RST
should be 1.8V or higher)
H: ON, Hi-Z: OFF
H: ON, Hi-Z: OFF
L: ON, Hi-Z: OFF
Output L fixed
Output L fixed

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