Fl Display - Sharp HT-CN400DVH Service Manual

IC803 92LRCI7866-001: DVD Front End (LC78663NRW) (1/4)
Pin No. Port Name
1 AD1
2 AD0
3 JV
4 PREC
5 RF_PH
6 PF_BH
7 TE
8 FE
9 TEST0
10 EFMINP
11 TEST1
12 EFMINN
13 SLCLPFO
14 SLCLPFI
15 SLCO1
16 SLCO2
17 AVDD1
18 AVSS
19 BHC
20 WO
21 TEC
22 VREF
23 TSTD1
24 TSTD0
25 FO
26 BST
27 TBAL
28 FBAL
29 SGC
30 SLDO
31 SPDO
32 TDO
33 FDO
34 DVDDO
35 DVSS
36 FG
37 HIRQB
38 HWAITB
39 HRESB
40 HRDB
41 HWRB
42 HCSB
43 HDAT0
44 DVDD1
45 DVSS
46 HDAT1
47 HDAT2
48 HDAT3
49 HDAT4
50 HDAT5
51 HDAT6
52 HDAT7
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
HT-CN400DVH/HT-CN400DVE/HT-CN500DVH/HT-CN500DVE
Input/Output
Input Servo A/D converter. AD1
Input Servo A/D converter. AD0
Input Servo A/D converter. JV
Input Servo A/D converter. PREC
Input Servo A/D converter. RF_PH
Input Servo A/D converter. RF_BH
Input Servo A/D converter. TE
Input Servo A/D converter. FE
Input Test input 0. (Must be tied low during normal operation.)
Input EFM/EFM+ input.
Input Test input 1. (Must be tied low during normal operation.)
Input EFM- input.
— SLC
— SLC
— SLC
— SLC
Input A/D, D/A converter, and SLC power supply. (Analog 3.3 V)
— Analog system ground.
Input Comparator input. (Capacitor coupled to RF_BHH)
Input Comparator input.
Input Comparator input. (Capacitor coupled to TE)
Output Servo D/A converter reference voltage.
Output Servo D/A converter.
Output Servo D/A converter: TSTD0
Output Servo D/A converter: FO
Output Servo D/A converter: BST
Output Servo D/A converter: TBAL
Output Servo D/A converter: FBAL
Output Servo D/A converter: SGC
Output Servo D/A converter: SLDO
Output Servo D/A converter: SPDO
Output Servo D/A converter: TDO
Output Servo D/A converter: FDO
Input Internal logic system power supply. (Digital 2.5 V)
— Digital system ground.
Input/Output FG counter input.
Output Interrupt signal output.
Output Wait signal output.
Input Servo reset input.
Input Read signal input.
Input Write signal input.
Input Chip select signal input.
Input/Output Data bus 0.
Input I/O system power supply. (Digital 3.3 V)
— Digital system ground.
Input/Output Data bus 1.
Input/Output Data bus 2.
Input/Output Data bus 3.
Input/Output Data bus 4.
Input/Output Data bus 5.
Input/Output Data bus 6.
Input/Output Data bus 7.
Function
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