Sony HCD-M500AV Service Manual page 54

Pin No. Pin Name
51 STEREO
52 TUNED
53 NC
54 NC (VSS)
55 NC (VSS)
56 NC (VSS)
57 NC (VSS)
58 NC
59 NC
60 AC CUT
61 F RELAY
62 DBFB ON/OFF
63 DBFB H/N
64 MO FUNC
65 PL CLK
66 PL CE
67 PL DOUT
68 PL RELAY
69 DVD SEL
70 MUTE CENTER
71 MUTE REAR
72 VDD
73 NC (VDD)
74 LINE MUTE
75 STK MUTE
76 ST MUTE
77 TC MUTE
78 IIC CLK
79 TDA CLK
80 IIC DATA
54
I/O
I Stereo detection for tuner
I Tuned detection for tuner
— Not used
— Not used (Connect to ground)
— Not used (Connect to ground)
— Not used (Connect to ground)
Not used (Connect to ground)
—
— Not used
— Not used
I AC power down
Main speaker relay control signal output
O
O DBFB ON/OFF select signal output
O DBFB H/N select signal output
O MD mute signal output
O CLK signal output for IC201 (M62464)
O Chip enable output for IC201 (M62464)
O Data signal output for IC201 (M62464)
Surround speaker relay control signal output
O
O DVD select output
O Center speaker mute signal output
O Rear speaker mute signal output
— Power supply
— Not used (Power supply)
O Line mute signal output
O STK ON/OFF selection output
O Tuner mute signal output
O TC mute signal output
I/O Serial data clock input/output
O Clock signal output for IC101
I/O Serial data input/output
Function