Sharp HT-CN150DVW Service Manual page 69

HT-CN150DVW
Name Pin Numbers
MEV 50
VNA
51
FNN, FNP 52, 53
DIP, DIN 54, 55
BYP 56
RFAC 57
VPA 58
AIP, AIN 59, 60
ATON, ATOP 61, 62
RFSIN 63
RFDC 64
AGC Interface 59,60
21
22
Automatic Laser
Power Control 23
(APC) Interface
24
26
3:6
9:12
CD/DVD Photo
Detector Interface
13:16
17,18
26
33
34
38
Embedded Servo
39
DSP
40
Interface
41
46
47
48
7, 8
20
30
Filtering and
Reference Voltage
36
43, 44
64
19
25
37
Power and
Ground
45
51
58
I/O
I RFDC bottom envelope. Connected to VPA pin 58 via a capacitor.
G RF block and serial port ground.
Differential outputs of equalizer/filter.
O
Differential analog inputs to the RF single-end output buffer and full wave rectifier.
I
AGC amplifier gain bypass. Tied to VPA via a capacitor.
I
Single-ended RF output.
O
RF block and serial port power supply.
P
I Differential AGC amplifier inputs.
O Differential attenuator outputs.
Single-ended RF signal attenuator input.
I
Single-ended RF summing output.
O
I Differential AGC amplifiers inputs [AIP] AND [AIN].
O APC laser power control for DVD [DVDLD].
O APC laser power control for CD [CDLD].
I APC photo diode in for DVD [DVDPD].
I APC photo diode in for CD [CDPD].
I APC input on/off control [LDON].
I DVD differential phase detector matrix inputs [A2], [B2], [C2], and [D2].
I DVD single-ended phase detector matrix inputs [A], [B], [C], and [D].
I CD photo detector interface inputs [CD_A], [CD_B], [CD_C], and[CD_D].
I CD side beam photo detector tracking outputs [CD_E] and [CD_F].
I APC input on/off control [LDON] from embedded servo DSP.
O Linking signal and mirror monitor control I/O [LINK].
O Defect output [DFT] to embedded servo DSP.
O Pull-In signal [P1] to embedded servo DSP.
O Tracking error [TE] to embedded servo DSP.
O Focusing error [FE] to embedded servo DSP.
O Center error [CE] to embedded servo DSP.
I Serial clock [SCLK] from embedded servo DSP.
I/O Serial data I/O [SDATA] for embedded servo DSP.
I Serial data enable [SDEN] from embedded servo DSP.
I Differential phase tracking low-pass filters [CP] and [CN].
O DC bias reference voltage [VC].
I Mirror low-pass filter [MLPF].
O Servo block reference voltage [V125].
I Lens shift offset cancellation low-pass filters [LCP] and [LCN].
O Single-ended RF summing output reference [RFDC].
P Servo block port power supply [VPB].
G Servo block ground [VNB].
P 2.5V reference voltage servo putput power supply [V25].
P 3.3V output buffers power supply [V33].
G RF block and serial port ground [VNA].
P RF block and serial port power supply [VPA].
Definition
69