Sony MZ-R50 Service Manual - Page 36

Pin No., Pin name, Description

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Page 36 highlights

Pin No. 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Pin name AVSS PDO PCO FILI FILO CLTV PEAK BOTM ABCD FE AUX1 VC ADIO AVDD ADRT ADRB AVSS SE TE AUX2 DCHG APC ADFG FO CONT XLRF CKRF DTRF APCREF LDDR TRDR TFDR DVDD FFDR FRDR FS4 SRDR SFDR SPRD SPFD FGIN TEST1 TEST2 TEST3 DVSS EFMO I/O Description - Ground terminal. - Not used (Open). O Decoder PLL master clock PLL phase comparison output. I Decoder PLL master clock PLL filter input. O Decoder PLL master clock PLL filter output. I Decoder PLL master clock PLL VCO control voltage input. I Inputs peak hold signal for light amount signal from RF amplifier (IC501). I Inputs bottom hold signal for light amount signal from RF amplifier (IC501). I Light amount signal from RF amplifier (IC501). I Input focus error signal from RF amplifier (IC501). I Input of auxiliary signal from RF amplifier (IC501). I Input of middle point voltage (+1.4V) from RF amplifier (IC501). - Not used (Open). - Power supply (+2.8V) for analog. - Not used (Connect to +2.8V). - Not used (Ground). - Ground terminal. I Input of sled error signal from RF amplifier (IC501). I Input of tracking error signal from RF amplifier (IC501). - Not used (Connect to +2.8V). - Not used (Connect to +2.8V). - Not used (Connect to +2.8V). I Input of ADIP dual FM signal from RF amplifier (IC501) (22.05kHz±1kHz). (TTL Schmidt input) O Focus control output to RF amplifier (IC501). I Latch signal input from RF amplifier (IC501). O RFCK clock (7.35kHz) signal output. I Serial data input from system controller (IC801). I Laser power setting signal input. - Not used (Open). O Tracking servo drive signal output (-). O Tracking servo drive signal output (+). - Power supply (+2.8V) for digital. O Focus servo drive signal output (+). O Focus servo drive signal output (-). O 176.4kHz clock signal output (MCLK). O Sled servo drive signal output (-). O Sled servo drive signal output (+). O Spindle servo drive signal output (-). O Spindle servo drive signal output (+). I FG signal input from spindle motor driver (IC701). - Not used (Connect to ground). - Not used (Connect to ground). - Not used (Connect to ground). - Ground terminal. O EFM recording signal ouput. - 36 -

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– 36 –
Pin No.
Pin name
I/O
Description
56
AV
SS
–
Ground terminal.
57
PDO
–
Not used (Open).
58
PCO
O
Decoder PLL master clock PLL phase comparison output.
59
FILI
I
Decoder PLL master clock PLL filter input.
60
FILO
O
Decoder PLL master clock PLL filter output.
61
CLTV
I
Decoder PLL master clock PLL VCO control voltage input.
62
PEAK
I
Inputs peak hold signal for light amount signal from RF amplifier (IC501).
63
BOTM
I
Inputs bottom hold signal for light amount signal from RF amplifier (IC501).
64
ABCD
I
Light amount signal from RF amplifier (IC501).
65
FE
I
Input focus error signal from RF amplifier (IC501).
66
AUX1
I
Input of auxiliary signal from RF amplifier (IC501).
67
VC
I
Input of middle point voltage (+1.4V) from RF amplifier (IC501).
68
ADIO
–
Not used (Open).
69
AV
DD
–
Power supply (+2.8V) for analog.
70
ADRT
–
Not used (Connect to +2.8V).
71
ADRB
–
Not used (Ground).
72
AV
SS
–
Ground terminal.
73
SE
I
Input of sled error signal from RF amplifier (IC501).
74
TE
I
Input of tracking error signal from RF amplifier (IC501).
75
AUX2
–
Not used (Connect to +2.8V).
76
DCHG
–
Not used (Connect to +2.8V).
77
APC
–
Not used (Connect to +2.8V).
78
ADFG
I
Input of ADIP dual FM signal from RF amplifier (IC501) (22.05kHz±1kHz).
(TTL Schmidt input)
79
FO CONT
O
Focus control output to RF amplifier (IC501).
80
XLRF
I
Latch signal input from RF amplifier (IC501).
81
CKRF
O
RFCK clock (7.35kHz) signal output.
82
DTRF
I
Serial data input from system controller (IC801).
83
APCREF
I
Laser power setting signal input.
84
LDDR
–
Not used (Open).
85
TRDR
O
Tracking servo drive signal output (–).
86
TFDR
O
Tracking servo drive signal output (+).
87
DV
DD
–
Power supply (+2.8V) for digital.
88
FFDR
O
Focus servo drive signal output (+).
89
FRDR
O
Focus servo drive signal output (–).
90
FS4
O
176.4kHz clock signal output (MCLK).
91
SRDR
O
Sled servo drive signal output (–).
92
SFDR
O
Sled servo drive signal output (+).
93
SPRD
O
Spindle servo drive signal output (–).
94
SPFD
O
Spindle servo drive signal output (+).
95
FGIN
I
FG signal input from spindle motor driver (IC701).
96
TEST1
–
Not used (Connect to ground).
97
TEST2
–
Not used (Connect to ground).
98
TEST3
–
Not used (Connect to ground).
99
DV
SS
–
Ground terminal.
100
EFMO
O
EFM recording signal ouput.