Pioneer CDX-MG6056ZH Service Manual page 59

CDX-MG6346ZH,MG6446ZH
Pin No. Pin Name
69 EXCE
70 ILPOW
71 VCC
72 VREF
73 AVSS
74 ADRMON
75 EREF
76-78 PH1-3
79 ELVSNS
80 TEMP
*PD5540A
80
1
20
21
BU2092FV
58
I/O Function and Operation
O Chip enable output
O Illumination power supply control output
Power supply terminal
I A/D converter reference voltage input
I A/D converter GND
I DRAM memory remaining monitor input
I DRAM A/D converter reference voltage input
I Disc photo sense input
I ELV position sense input
I Temperature detector input
61
60
41
40
Output buffer (Open drain)
12bit storage-register
12bit shift-register
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.