Hitachi DV-P303U, Service Manual

Page: 20 / 106

Reference Information
2-13
Pin
No.
Pin Name I/O Description Related Block
Related
Part
1 ACD I Optical main beam A, AC Coupling input terminals for CD of RF
block PRE AMP P/U
2 BCD I Optical main beam B, AC Coupling input terminals for CD of RF
block PRE AMP P/U
3 CCD I Optical main beam C, AC Coupling input terminals for CD of RF
block PRE AMP P/U
4 DCD I Optical main beam D, AC Coupling input terminals for CD of RF
block PRE AMP P/U
5 ADVD I Optical main beam A, AC Coupling input terminals for DVD of RF
block PRE AMP P/U
6 BDVD I Optical main beam B, AC Coupling input terminals for DVD of RF
block PRE AMP P/U
7 CDVD I Optical main beam C, AC Coupling input terminals for DVD of RF
block PRE AMP P/U
8 DDVD I Optical main beam D, AC Coupling input terminals for DVD of RF
block PRE AMP P/U
9 RREFBF - RF AMP I/O buffer bias resistance connection terminal RF AMP -
10 RREFEQ - RF EQ BIAS resistance connection terminal RF EQ -
11 RREF - Analog Block bias resistance connection terminal ANALOG -
12 VREFEQ - CAP connection terminal for RF EQ Center voltage EQ VC AMP -
13 E I CD Optical sub beam E input terminal for Servos TE 3B P/U
14 F I CD Optical sub beam F input terminal for Servos TE 3B P/U
15 ADVD1 I Optical main beam A input terminal for DVD of Servo block SERVO AMP P/U
16 BDVD1 I Optical main beam B input terminal for DVD of Servo block SERVO AMP P/U
17 CDVD1 I Optical main beam C input terminal for DVD of Servo block SERVO AMP P/U
18 DDVD1 I Optical main beam D input terminal for DVD of Servo block SERVO AMP P/U
19 ACD1 I Optical main beam A input terminal for CD of Servo block SERVO AMP P/U
20 BCD1 I Optical main beam B input terminal for CD of Servo block SERVO AMP P/U
21 CCD1 I Optical main beam C input terminal for CD of Servo block SERVO AMP P/U
22 DCD1 I Optical main beam D input terminal for CD of Servo block SERVO AMP P/U
23 AVCC P Power voltage input terminal for Analog Part ANALOG -
24 VREFA I/O CAP connection terminal for Analog Part center voltage
Uses an external block ANA VC AMP SERVO
25 FOFST - CAP connection terminal (open) for Focus Auto Offsets FE AMP -
26 OFSTHOLD I On/Off terminal for Auto Offset Block.
(L: Auto Offset Adjustments, H: Serial Offset Adjustments)
OFSTCTL MICOM
27 VREFLP_BGI I Band gap voltage input block for ALPC ALPC -
28 LDODVD O
Optical Laser Diodes operation voltage output terminal for DVD
ALPC P/U
29 PDDVD I
Optical Laser Monitor Diode voltage input terminal for DVD
ALPC P/U
30 LDOCD O
Optical Laser Diode operating voltage output terminal for CD
ALPC P/U
31 PDCD I
Optical Laser Monitor Diode voltage input terminal for CD
ALPC P/U
32 AGND P
Power GND terminal for Analog Part
ANALOG -
33 FE O
FE AMP output terminal
FE AMP DSSP
34 FEN I
Input terminal for selecting FE AMP Gain
FE AMP -
35 TEN I
Input terminal for selecting TE AMP Gain
TE AMP -
36 TE O
TE AMP output terminal
TE AMP DSSP
37 PDLIMTRES -
Bias resistance terminal for PDLIMIT
DPD -
38 ABCDN I
ABCD AMP for selecting Gain (
-
) input terminal
ABCD AMP -
39 ABCD O
ABCD AMP output terminal
ABCD AMP -
40 ABCDI I
ABCD AC Coupling input terminal for servo monitor
SERVO MONIT -
41 ENVP -
CAP connection terminal for selecting the RC value of Peak Hold
for detecting RF Envelopes
RF ENV -
42 ENVB -
CAP connection terminal for selecting the RC value of Bottom
Hold for detecting RF Envelopes
RF ENV -
43 ENV O
RF Envelope Detect Output terminal
RF ENV DSSP
44 DGND P
Power GND input terminal for digital circuits
DIGITAL -
45 FOKTH I
Focus OK comparating level input terminal
FOKB -
46 FOKB O
Focus OK comparator output terminal (L: Focus OK)
FOKB DSSP
47 DFCT_CP1 -
Connection terminal for RC value of Peak Hold, for selecting the
maximum time for Servo signal
DFCT -
48 DFCT_CP2 -
Connection terminal for RC value of Peak Hold, for selecting the
minimum defect time for PLL
DFCT -
49 CC1 O
Peak Hold Output terminal for selecting the minimum Defect time
for Defect
DFCT -
50 CC2 I
Peak Hold AC Coupling Input terminal for Defect
DFCT -
51 DVCC P
Power voltage input terminal for digital circuit
DIGITAL -
52 DFCTTH2 -
Resistance connection terminal for selecting the Defect Comparat-
ing Level for PLL
DEFECT -
53 DFCTTH1 -
Resistance connection terminal for selecting the Defect Comparat-
ing Level for Servo
DEFECT -
54 DFCT1 O
Defect output terminal for Servo
DEFECT DSSP
55 DFCT2 O
Defect output terminal for PLL
DEFECT PLL
56 DPDVCC P
Power voltage input terminal for DPD TE
DPD -
57 MIRR O
Mirror output terminal
MIRR DSSP
58 BCA O
BCA output terminal
BCA DSP
59 TE3OFST -
Cap connection terminal (open) for 3B TE Offset
3B TE AMP -
60 DPDEQ1 O
DPD EQ (A+C) output terminal
DPD -
61 DPDEQ2 O
DPD EQ (B+D) output terminal
DPD -
62 FAULTOUT O
DPD abnormal wave form output terminal (monitor)
DPD -
63 DPDMUTE I
DPD TE MUTE control terminal (H: Mute)
DPD MICOM
64 PLLCTL I
DPD TE PLL variable input terminal
DPD SERVO
65 TE1RES I
DPD TE PLL variable bias resistance
DPD -
66 DPDGND P
Power GND input terminal for DPD TE
DPD -
67 VREFDPD O
CAP connection terminal for DPD TE center voltage
DPD VC AMP -
68 RREFDLY -
Bias resistance connection terminal for Delay Block
Delay Block -
69 DATA I
Data input terminal
Serial Interface MICOM
70 CLOCK I
Clock input terminal
Serial Interface MICOM
71 STB I
Data Enable input terminal
Serial Interface MICOM
72 OSC
Input terminal for RC value of OSC, for Auto Offset Block
Auto OFSTCTL -
73 RESET I
Reset input terminal (L: Reset) for Auto Offset Block
Auto OFSTCTL MICOM
74 BCAI I
BCA Filter1
BCA -
75 BCAO O
BCA Filter2
BCA -
76 RFCT O
RF Ripple Center voltage output terminal for Mirror
MIRROR DSSP
77 CB2 -
CAP connection terminal of RC value of Bottom Hold, for RFCT
generation
MIRROR -
78 CP2 -
CAP connection terminal of RC value of Peak Hold, for RFCT gen-
eration
MIRROR -
79 RFRP O
RF Ripple Amp output terminal for Mirror
MIRROR DSSP
80 RFRPN I
Input terminal for selecting RFRP Amp gain
MIRROR -
81 MROFST I
RF Ripple Offset control terminal for Mirror
MRROR -
82 CB1 -
RC connection terminal of RC value of Bottom Hold, for RFRP
generation
MRROR -
83 CP1 -
RC connection terminal of RC value of Peak Hold, for RFRP gen-
eration
MRROR -
84 MIRRI I
Input terminal for MIRR signal generation
MRROR -
85 EQVCC P
Power voltage input signal for RF EQ
RF EQ -
86 RFEQ0 0
RF EQ output terminal
RF EQ PLL
87 BCATH I
BCA Comparating Level control terminal
BCA DSP
88 EQIN I
RFAGCO input terminal for RF EQ
RFEQ,RFENV DSSP
89 RFAGCO O
RF AGC AMP output terminal
RF AGC -
90 AGCC -
CAP connection terminal for time constant of AGC
RF AGC -
91 AGCI I
AGC voltage input terminal while in AGC hold
RF AGC -
Pin
No.
Pin Name I/O Description Related Block
Related
Part
92 EQGND P
Power GND input terminal for RF EQ
RF EQ -
93 AGCLEVEL I
AGC Level control voltage input terminal (3.5 V) while in AGC hold
off
RF AGC -
94 AGCB -
RC connection terminal for RC value of Bottom Hold, for RF AGC
RF AGC -
95 AGCP -
RC connection terminal for RC value of Peak Hold, for RF AGC
RF AGC -
96 RDPF -
Bias resistance connection terminal for selecting RF EQ frequency RF EQ
-
97 EQG I
RF EQ Boost Gain control voltage input terminal
RF EQ DSSP
98 EQF I
RF EQ Peak Frequency control voltage input terminal
RF EQ DSSP
99 PLLF I
Wide-band PLL compatible RF EQ Peak Frequency Control termi-
nal
RF EQ DSSP
100 VZOCTL I
RF EQ zero control terminal
RF EQ DSSP
Related