Sony HCD-VZ50MD Service Manual page 98

Pin No. Pin Name
54 ASYI
55 AVDD
BIAS
56
RFI
57
AVSS
58
PCO
59
60 FILI
61 FILO
62 CLTV
63 PEAK
BOTM
64
ABCD
65
FE
66
AUX1
67
68 VC
69 ADIO
70 AVDD
71 ADRT
72 ADRB
AVSS
73
SE
74
TE
75
DCHG
76
77 APC
78 ADFG
79 F0CNT
80 XLRF
81 CKRF
DTRF
82
APCREF
83
TEST0
84
TRDR
85
86 TFDR
87 DVDD
88 FFDR
89 FRDR
90 FS4
SRDR
91
SFDR
92
SPRD
93
SPFD
94
95 FGIN
96 to 98 TEST1 to TEST3
99 DVSS
EFMO
100
• Abbreviation
EFM: Eight to Fourteen Modulation
PLL : Phase Locked Loop
VCO: Voltage Controlled Oscillator
98
I/O
Playback EFM comparator slice level input
I (A)
+3V power supply (Analog)
—
Playback EFM comparator bias current input
I (A)
I (A) Playback EFM RF signal input
— Ground (Analog)
O (3) Phase comparison output for the recording/playback EFM master PLL
I (A) Filter input for the recording/playback EFM master PLL
O (A) Filter output for the recording/playback EFM master PLL
Internal VCO control voltage input for the recording/playback EFM master PLL
I (A)
Light amount signal peak hold input from the CXA2523AR
I (A)
I (A) Light amount signal bottom hold input from the CXA2523AR
I (A) Light amount signal input from the CXA2523AR
I (A) Focus error signal input from the CXA2523AR
I (A) Auxiliary A/D input
I (A) Middle point voltage (+1.5V) input from the CXA2523AR
O (A) Monitor output of the A/D converter input signal (Not used)
— +3V power supply (Analog)
A/D converter operational range upper limit voltage input (Fixed at "H")
I (A)
A/D converter operational range lower limit voltage input (Fixed at "L")
I (A)
— Ground (Analog)
I (A) Sled error signal input from the CXA2523AR
I (A) Tracking error signal input from the CXA2523AR
I (A) Connected to +3V power supply
I (A) Error signal input for the laser digital APC (Fixed at "L")
I (S) ADIP duplex FM signal input from the CXA2523AR (22.05 ± 1 kHz)
Filter f control output to the CXA2523AR
O
0
Control latch output to the CXA2523AR
O
Control clock output to the CXA2523AR
O
O Control data output to the CXA2523AR
O Reference PWM output for the laser APC
O PWM output for the laser digital APC (Not used)
O Tracking servo drive PWM output (–)
O Tracking servo drive PWM output (+)
+3V power supply (Digital)
—
Focus servo drive PWM output (+)
O
Focus servo drive PWM output (–)
O
176.4 kHz clock signal output (X'tal) (Not used)
O
O Sled servo drive PWM output (–)
O Sled servo drive PWM output (+)
O Spindle servo drive PWM output (–)
O Spindle servo drive PWM output (+)
I (S)
Test input (Fixed at "L")
I
Ground (Digital)
—
O EFM output when recording
Function