Kenwood DDX6027 Service Manual page 23

MICROCOMPUTER'S TERMINAL DESCRIPTION
Disc Controller Microcomputer: MN103S71F (X37: IC4)
Pin No. Pin Name I/O
1 SW_2 I
2 SW_3 I
3 CDON O
4 VDD3 -
5 VSS -
6 FG I
7 SW_4 I
8,9 FADR17,18 O
10 FADR11 O
11 FADR9 O
12 VDD15 -
13 FADR8 O
14,15 FADR13,14 O
16 NWE O
17,18 FADR16,15 O
19 DRAMVDD15 -
20 DRAMVSS -
21 VSS -
22 FADR12 O
23~30 FADR7~0 O
31 VSS -
32 VDD3 -
33~40 FDT0~7 I/O
41 NCE O
42 FADR10 O
43 NOE O
44 MMOD I
45 NRST I
46 VSS -
47 SCLOCK I/O
48 SDATA I/O
49 TxD/EXTRG0 I/O
50 RxD/EXTRG1 I/O
51 VDD3 -
52 OSCI I
53 OSCO O
54 VSS -
Application
8cm Ej-STOP, Lo-START detection
Lo-START detection
CD-LD ON
VDD (3.3V)
VSS
Motor FG input
Lo-END detection
Address output to FLASH
Address output to FLASH
Address output to FLASH
VDD (1.5V)
Address output to FLASH
Address output to FLASH
Right signal output to FLASH
Address output to FLASH
DRAM power supply (1.5V)
VSS for DRAM
VSS
Address output to FLASH
Address output to FLASH
VSS
VDD (3.3V)
Data input/output with FLASH
Chip select signal output to FLASH
Address output to FLASH
Read signal output to FLASH
Test mode switching signal
Reset input
VSS
Dwire clock terminal
Dwire data terminal
Serial transmission/
Dwire trigger terminal
Serial reception/
Dwire trigger terminal
VDD (3.3V)
Oscillation input (16.897849MHz)
Oscillation output (16.897849MHz)
VSS
DDX6027/6027Y/7017
DDX7037/7047/7067
Pin No. Pin Name I/O
55 OFS_TE O
56 DRV1 O
57 DRV2 O
58 DVDON O
59 STEP_A O
60 STEP_B O
61 Lo/Ej O
62 LO.MUTE O
63 VSS -
64 DRV.MUTE O
65 BMS O
66 LIM-SW I
67 Gain_SW O
68 FEPCK O
69 FEPDT O
70 FEPEN O
71 DRAMVSS -
72 DRAMVDD15 -
73 DRAMVDD33 -
74 VDD3 -
75 FG I
76 TX O
77 VDD15 -
78 VSS -
79 TSTSG O
80 VFOSHORT O
81 JLINE O
82 BDO I
83 OFTR I
84 AVSSD -
85 ROUT O
86 LOUT O
87 AVDDD -
88 VCOF I
89 TRCRS I
90 AVDDC -
91 WBLIN I
92 CSLFLT I
93 RFDIF I
Application
CD TE offset cancel output
Drive output for spindle drive
Focus balance adjustment output
DVD-LD ON
Thread control output A
Thread control output B
Lo/Ej control terminal
Lo/Ej mute terminal
VSS
Driver mute control
Spindle short brake control
LIM-SW detection
PDIC Gain switching
FEP clock output
FEP data output
FEP enable signal
VSS for DRAM
DRAM power supply (1.5V)
DRAM power supply (3.3V)
VDD (3.3V)
Motor FG input
Output for digital OUT
VDD (1.5V)
VSS
EQ calibration signal
Not used.
J-line setting output
Dropout signal input
Off-track signal input
VSS for analog
MASH Rch audio output
MASH Lch audio output
VDD (3.3V) for analog
JFVCO control voltage
Track loss generation signal input
VDD (3.3V) for analog
WBL input
Not used
Not used
23