98
Function
Pin No.
Pin Name
I/O
54
55
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 to 98
99
100
ASYI
AVDD
BIAS
RFI
AVSS
PCO
FILI
FILO
CLTV
PEAK
BOTM
ABCD
FE
AUX1
VC
ADIO
AVDD
ADRT
ADRB
AVSS
SE
TE
DCHG
APC
ADFG
F0CNT
XLRF
CKRF
DTRF
APCREF
TEST0
TRDR
TFDR
DVDD
FFDR
FRDR
FS4
SRDR
SFDR
SPRD
SPFD
FGIN
TEST1 to TEST3
DVSS
EFMO
Playback EFM comparator slice level input
+3V power supply (Analog)
Playback EFM comparator bias current input
Playback EFM RF signal input
Ground (Analog)
Phase comparison output for the recording/playback EFM master PLL
Filter input for the recording/playback EFM master PLL
Filter output for the recording/playback EFM master PLL
Internal VCO control voltage input for the recording/playback EFM master PLL
Light amount signal peak hold input from the CXA2523AR
Light amount signal bottom hold input from the CXA2523AR
Light amount signal input from the CXA2523AR
Focus error signal input from the CXA2523AR
Auxiliary A/D input
Middle point voltage (+1.5V) input from the CXA2523AR
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”)
A/D converter operational range lower limit voltage input (Fixed at “L”)
Ground (Analog)
Sled error signal input from the CXA2523AR
Tracking error signal input from the CXA2523AR
Connected to +3V power supply
Error signal input for the laser digital APC (Fixed at “L”)
ADIP duplex FM signal input from the CXA2523AR (22.05 ± 1 kHz)
Filter f
0
control output to the CXA2523AR
Control latch output to the CXA2523AR
Control clock output to the CXA2523AR
Control data output to the CXA2523AR
Reference PWM output for the laser APC
PWM output for the laser digital APC (Not used)
Tracking servo drive PWM output (–)
Tracking servo drive PWM output (+)
+3V power supply (Digital)
Focus servo drive PWM output (+)
Focus servo drive PWM output (–)
176.4 kHz clock signal output (X’tal) (Not used)
Sled servo drive PWM output (–)
Sled servo drive PWM output (+)
Spindle servo drive PWM output (–)
Spindle servo drive PWM output (+)
Test input (Fixed at “L”)
Ground (Digital)
EFM output when recording
I (A)
—
I (A)
I (A)
—
O (3)
I (A)
O (A)
I (A)
I (A)
I (A)
I (A)
I (A)
I (A)
I (A)
O (A)
—
I (A)
I (A)
—
I (A)
I (A)
I (A)
I (A)
I (S)
O
O
O
O
O
O
O
O
—
O
O
O
O
O
O
O
I (S)
I
—
O
• Abbreviation
EFM: Eight to Fourteen Modulation
PLL : Phase Locked Loop
VCO: Voltage Controlled Oscillator
Содержание HCD-VZ50MD
Страница 8: ...8 BD CD board BD CD BOARD To repair the BD CD board remove the bottom plate Bottom view ...
Страница 57: ...HCD VZ50MD 57 57 7 4 SCHEMATIC DIAGRAM DECK SECTION E Page 64 TO MAIN BOARD 16 ...
Страница 59: ...HCD VZ50MD 59 59 7 6 SCHEMATIC DIAGRAM CD SECTION See page 50 for Waveforms See page 90 for IC Block Diagrams ...
Страница 64: ...HCD VZ50MD 64 64 7 11 SCHEMATIC DIAGRAM MAIN 1 4 SECTION ...
Страница 65: ...HCD VZ50MD 65 65 7 12 SCHEMATIC DIAGRAM MAIN 2 4 SECTION See page 89 for IC Block Diagrams ...
Страница 67: ...HCD VZ50MD 67 67 7 14 SCHEMATIC DIAGRAM MAIN 4 4 SECTION See page 89 for IC Block Diagrams ...
Страница 71: ...HCD VZ50MD 71 71 7 18 SCHEMATIC DIAGRAM DIGITAL 2 2 SECTION See page 92 for IC Block Diagrams ...
Страница 73: ...HCD VZ50MD 73 73 7 20 SCHEMATIC DIAGRAM AMP SECTION ...
Страница 77: ...HCD VZ50MD 77 77 7 24 SCHEMATIC DIAGRAM SWITCH SECTION ...
Страница 83: ...HCD VZ50MD 83 83 7 32 SCHEMATIC DIAGRAM POWER SUPPLY SECTION ...