Pioneer KEH-P5900, Service Manual

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KEH-P5900,P5950
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
*PE5084A
Pin No. Pin Name I/O Function and Operation
56 CM O Cassette mechanism capstan motor control output
57 SC1 O Cassette mechanism sub motor control output
58 SC2 O Cassette mechanism sub motor control output
59 NES I Cassette mechanism forward end sense input
60 RES I Cassette mechanism reverse end sense input
61 POS I Cassette mechanism position sense input
62 PCL O Clock adjustment output
63 NR O Dolby NR ON/OFF select output
64
mtlsw
I Metal sense input
65 RIMUTE O RI mute output
66 PLAY O MS gain select output
67 DIRO O Head F/R select output
68 MSIN I Cassette mechanism MS sense input
69
loadsw
I Tape loading input
70 RECIVE O Not used
71,72 NC Not used
73 TEST I Test terminal
74 SEL I Select input for the destination
75 SL I SD level input from tuner
76 NC O Open
77 CL I Not used
78 NL I Not used
79 FLPILM O Inside of flap illumination output
80 EJECTS I EJECT input
81 NC Not used
82,83 VDD Power supply
84 GND GND
85 RX I IP BUS data input
86 TX O IP BUS data output
87 GND GND
88
ldet
I PLL lock sense input
89
rck
I RDS demodulation clock input
90 RDS57K I 57kHzBP-OUT sense input
91 NC Not used
92
bsens
I Back up power sense input
93
asens
I ACC power sense input
94 TUNPDI I PLL IC data input
95 KEYDT I Display data input
96 DPDT O Display data output
97 TUNPCK O PLL IC clock
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
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