Sony MDS-JE520 Service Manual page 65

Pin No. Pin Name
D1
48
D0
49
50, 51 D2, D3
52 MVCI
53 ASYO
ASYI
54
55 AVDD
56 BIAS
RFI
57
58 AVSS
PCO
59
60 FILI
61 FILO
CLTV
62
63 PEAK
64 BOTM
ABCD
65
66 FE
AUX1
67
68
VC
ADIO
69
AVDD
70
71 ADRT
72 ADRB
73 AVSS
SE
74
75 TE
76 DCHG
APC
77
78 ADFG
F0CNT
79
80
XLRF
CKRF
81
DTRF
82
83 APCREF
84 TEST0
85 TRDR
• Abbreviation
EFM: Eight to Fourteen Modulation
PLL : Phase Locked Loop
VCO: Voltage Controlled Oscillator
I/O
I/O
I/O Data input/output for DRAM
I/O
I (S)
Clock input from an external VCO (Fixed at "L")
Playback EFM duplex signal output
O
I (A) Playback EFM comparator slice level input
— +3V power supply (Analog)
I (A) Playback EFM comparator bias current input
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
Filter output for the recording/playback EFM master PLL
O (A)
I (A) Internal VCO control voltage input for the recording/playback EFM master PLL
Light amount signal peak hold input from the CXA2523R
I (A)
I (A)
Light amount signal bottom hold input from the CXA2523R
I (A) Light amount signal input from the CXA2523R
Focus error signal input from the CXA2523R
I (A)
I (A) Auxiliary A/D input
I (A) Middle point voltage (+1.5V) input from the CXA2523R
O (A) Monitor output of the A/D converter input signal (Not used)
— +3V power supply (Analog)
I (A) 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")
Ground (Analog)
—
I (A) Sled error signal input from the CXA2523R
Tracking error signal input from the CXA2523R
I (A)
I (A)
Connected to +3V power supply
I (A) Error signal input for the laser digital APC (Fixed at "L")
ADIP duplex FM signal input from the CXA2523R (22.05 ± 1 kHz)
I (S)
O Filter f control output to the CXA2523R
0
Control latch output to the CXA2523R
O
Control clock output to the CXA2523R
O
O Control data output to the CXA2523R
Reference PWM output for the laser APC
O
O PWM output for the laser digital APC (Not used)
Tracking servo drive PWM output (–)
O
– 74 –
Function