Read Sony MHC-RG444S (serv.man2) Service Manual online
46
MHC-RG444S(HCD-RG444)
Pin No.
Pin Name
I/O
Description
47
CLTV
I
Multiplier VCO1 control voltage input
48
FILO
O
Master PLL (slave = digital PLL) filter output
49
FILI
I
Master PLL filter input
50
PCO
O
Master PLL charge pump output
51
AVDD5
–
Analog power supply
52
DDVROUT
O
DC/DC converter output
53
DDVRSEN
I
DC/DC converter output voltage monitor pin
54
AVSS5
–
Analog ground
55
DDCR
I
DC/DC converter reset pin
56
BCKI
I
D/A interface bit clock input
57
PCMDI
I
D/A interface serial data input (2’s COMP, MSB first)
58
LRCKl
I
D/A interface LR clock input
59
LRCK
O
D/A interface LR clock output f = Fs
60
VSS
–
Internal digital ground
61
PCMD
O
D/A interface serial data output (2’s COMP, MSB first)
62
BCK
O
D/A interface bit clock output
63
VDD
–
Internal digital power supply
64
EMPH
O
High when the playback disc has emphasis, low it has not
65
EMPHI
I
High when de-emphasis is ON, low when input OFF
66
IOVDD2
–
I/O digital power supply
67
DOUT
O
Digital Out output
68
TEST
I
Test pin Normally ground
69
TES1
I
Test pin Normally ground
70
IOVss2
–
I/O digital ground
71
XVSS
–
Master clock ground
72
XTAO
O
Crystal oscillation circuit output
73
XTAI
I
Crystal oscillation circuit input
74
XVDD
–
Master clock power supply
75
AVDD1
–
Analog power supply
76
AOUT1
O
Lch analog output
77
VREFL
O
Lch reference voltage
78
AVSS1
–
Analog ground
79
AVSS2
–
Analog ground
80
VREFR
O
Rch reference voltage
81
AOUT2
O
Rch analog output
82
AVDD2
–
Analog power supply
83
IOVDD0
–
I/O digital power supply
84
RMUT
O
Rch “0” detection flag (Not used)
85
LMUT
O
Lch “0” detection flag (Not used)
86
XTSL
I
Crystal selection input (Not used)
87
IOVSS0
–
I/O digital ground
88
XTACN
I
Oscillation circuit control Self-oscillation when high, oscillation stop when low
89
SQSO
O
Subcode Q 80-bit and PCM peak and level data output, CD TEXT data output
90
SQCK
I
SQSO readout clock input
91
SBSO
O
Subcode P to W serial output
92
EXCK
I
SBSO readout clock input
93
XRST
I
System reset Reset when low
94
SYSM
I
Mute input Muted when high
95
D ATA
I
Serial data input from CPU
96
VSS
–
Internal digital ground
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