Sony MDX-65 Service Manual page 13

Pin No. Pin Name
63 —
64 EE CS
65 EE CKO
66 EE SIO
67 SENS
68 LIMIT SW
69 DOORSW
70 MD LAT
71 MD RST
72 VSS
73 MD ON
74 EMPH O
75 A ATT
76 ILLON
77 TSTSMD
78 TSTCKO
79 TSTSO
80 TSTMOD
81 VDD
82 – 85 TSTOUT0 – 3
86 – 93 TSTIN0 – 7
94 TEST/VPP
95 DCS1
96 DCS2
97 DCS3
98 DCS4
99 DCS5
100 DCS6
I/O
O Not used.
O Chip select output to EEPROM. (Not used in this set.)
O Serial clock output to EEPROM. (Not used in this set.)
I/O Data input from/output to EEPROM. (Not used in this set.)
I Internal status input from CXD2652AR (IC200).
I Optical pick-up innermost track limit position detection switch (S400) input
I Front door open detection switch (S620) input ("L" : Open complete)
O Serial latch signal output to CXA2523AR (IC100) and CXD2652AR (IC200).
O Reset signal output to CXD2652AR (IC200).
— GND
O Servo system power control output ("H" : Power ON)
O De-emphasis circuit control output ("H" : De-emphasis ON)
I Analog mute control input ("H" : Mute ON)
O Illumination lamp (PL620) light-up control output ("H" : Lamp light-up)
I Single mode setting pin ("L" : Single mode)
O Serial clock output to LED for TEST mode display. (Not used in this set.)
O Serial data output to LED for TEST mode display. (Not used in this set.)
I TEST mode setting pin ("L" : TEST mode)
— Power supply pin (+5 V)
TEST key output pin of 4 × 8 matrix. (Not used in this set.)
O
TEST key input pin of 4 × 8 matrix. (Not used in this set.)
I
— Fixed at "L" in this set.
I Disc with/without detection 1 switch (S611) input ("H" : with disc)
I Disc with/without detection 2 switch (S612) input ("H" : with disc)
I Disc with/without detection 3 switch (S613) input ("H" : with disc)
I Disc with/without detection 4 switch (S614) input ("H" : with disc)
I Disc with/without detection 5 switch (S615) input ("H" : with disc)
I Disc with/without detection 6 switch (S616) input ("H" : with disc)
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Pin Description