Sharp HT-CN400DVE, Service Manual

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