Pioneer DEH-2000R, Service Manual

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61
DEH-2000R,2030R,2020R
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
*PE5025A
Pin No. Pin Name I/O Function and Operation
57 CDMUTE O CD mute control output
58 CDEJET O CD eject control output
59 CDLOAD O CD LOAD motor loading control output
60 LOCK I CD spindle lock input
61 FOK I CD focus OK input
62 PCL O Clock adjustment output
63 MIRR I CD mirror detector input
64
clamp
I CD disc clamp sense input
65
xsck
O CD LSI clock output
66 XSI I CD LSI data input
67 XSO O CD LSI data output
68 XA0 O CD LSI command/data control output
69
xrst
O CD LSI reset output
70
xstb
O CD LSI strobe output
71,72 NC Not used
73 TEST I Test terminal
74 SL I Tuner signal level input
75 MODEL1 I Model select input
76 NL1 I RDS noise level input
77 SDBW I SD bandwidth input
78 EJTSNS I CD disc EJECT position detect
79 DSCSNS I CD disc detect input
80 VDSENS I CD VD over voltage / short-circuit sense input
81 TEMP I CD temperature sense input (CD)
82 (VDD) A/D converter power supply terminal
83 (VDD) A/D converter reference voltage terminal
84 (GND) A/D converter GND
85,86 NC Not used
87 GND GND
88
ldet
I RDS PLL lock sense input
89
rck
I RDS demodulation clock input
90 RDS57K I RDS 57kHz pulse count input
91 NC Not used
92
asens
I ACC power sense input
93
bsens
I Back up power sense input
94 TUNPDI I PLL IC data input
95 KEYDT I Key data input
96 DPDT O Display data output
97 TUNPCK O PLL IC clock output
98 TUNPDO O PLL IC data output
99 TUNPCE O PLL IC chip enable
100 PEE O Beep tone output
30
31
50
51 80
81
100
1