Kenwood KDC-MP928 Service Manual page 8

KDC-MP928/PSW9531
/PSW9531Y, XXV-01D
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MICROCOMPUTER'S TERMINAL DESCRIPTION
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Pin No. Pin Name
41 PAN_REQ
42 SDA
43 SCL
44 PON_PANEL
45 DSI
46~49 NC
50 PM_MOT1
51 PM_MOT2
52 EPM
53 PM_OPEN
54~56 NC
57 DIS_PAN5V
58 PM_CLOSE
59 ROMCOR_DET
60 PM_DET
61 SC_CON
62 NC
63 TUN_TYPE1
TE
L 13942296513
64 TUN_TYPE2
65,66 NC
67 CD_DISC12_SW
68 CD_LOS_SW
69 CD_MUTE_R
70 CD_MUTE_L
71 CD_MRST
72 CD_MSTOP
73 CD_DISC8_SW
74 CD_LOE_LIM_SW
75 CD_LOEJ
76 CD_MOTOR
77 PON_ILLUMI
78 PON_CD
79 PON
80 PON_OEL+B
81 NC
82,83 F_SEL1, F_SEL2
84 DIAG
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85 VCC2
86 EXT_AMP_CON
87 VSS
.
88~90 TYPE_1~TYPE_3
91,92 NC
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I/O Application
I Communication request terminal from panel
I/O CD mechanism I2C data input/output terminal
I/O CD mechanism I2C clock output terminal
I/O Panel 5V control terminal
I/O (D) SI control terminal
O Not used
O Panel motor control 1
O Panel motor control 2
I FLASH EPM input terminal
I Panel full open detection
O Not used
I/O PAN5V discharge circuit
I Panel mechanism close detection
I E2PROM write request
I Panel mechanism detection
O Between-panel communication (CE at FLASH)
O Not used
I Destination setting 1
I Destination setting 2
O Not used
I CD disk detection terminal (12cm)
I CD loading detection terminal
I CD MUTE (Rch) request terminal
I CD MUTE (Lch) request terminal
CD mechanism µ-com RST terminal
O
CD mechanism µ-com STOP terminal
O
I CD disk detection terminal (8cm) (J only)
I CD detection terminal (Chucking SW)
I/O CD motor control terminal
O CD motor control terminal
I/O Key illumination power supply control
I/O CD WMA power supply control terminal
O Power supply control
O Power supply control terminal for OEL
O Not used
O SW-Reg frequency switching
I/O PCON excess current monitoring
-
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I/O PCON excess current monitoring
-
i
I Destination switching
O Not used
2 9
8
Processing / Operation / Description
ON : H, At the time of momentary power down and panel off,
After 11 minutes of ACC_OFF : Hi-Z
Soft DSI control specification
Output L-fixed
Output L-fixed
H : Discharge (Panel reset compensation ), Hi-Z : Normal
H : Write
H : In function check
POWER OFF, ACC OFF : L
Output L-fixed
Q Q
3 6 7 1 3 1 5
Output L-fixed
L : Rch mute request
L : Lch mute request
H : Normal, L : Reset
H : Mechanism µ-com in operation, L : Mechanism µ-com stop
H : Loading complete, L : No disk
ON : H, OFF : Hi-Z
CD is used as source : H, Source other than CD is used : Hi-Z
POWER ON : H, POWER OFF : L
POWER ON : H, POWER OFF : L
Output L-fixed
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External amplifier control specification
.
Output L-fixed
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9