Sony HCD-DX155 Service Manual page 62

HCD-DX155/DX255
MAIN BOARD IC1101 CXD9849R
(CD/DVD RF AMP, FOCUS/TRACKING ERR AMP, DVD SYSTEM PROCESSOR, DIGITAL SERVO PROCESSOR)
Pin No. Pin Name
1 AGND
2 DVDA
3 DVDB
4 DVDC
5 DVDD
6 DVDRFIP
7 DVDRFIN
8 NA
9 NB
10 MC
11 MD
12 SA
13 SB
14 SC
15 SD
16 CDFON
17 CDFOP
18 TNI
19 TPI
20 MDI1
21 MDI2
22 LDO2
23 LDO1
24 SVDD3
25 CSD
26 RFLVL
27 SGND
28 V2REFO
29 V2O
30 VREFO
31 FED
32 TEO
33 TEZISLV
34 OPOUT
35 OPIN
36 OPIN
37 DMO
38 FMO
39 TROPENPWM
40 IOPMON
41 TRO
42 FOO
43 DVSS
44 NC
45 NC
46 DVDD3
47 SPFG
62
I/O
— Ground terminal
I AC coupled input path A
I AC coupled input path B
I AC coupled input path C
I AC coupled input path D
I AC coupled DVD RF signal input RFIP
I AC coupled DVD RF signal input RFIN (not used)
I DC coupled main-beam RF signal input A
I DC coupled main-beam RF signal input B
I DC coupled main-beam RF signal input C
I DC coupled main-beam RF signal input D
I DC coupled sub-beam RF signal input A (not used)
I DC coupled sub-beam RF signal input B (not used)
I DC coupled sub-beam RF signal input C (not used)
I DC coupled sub-beam RF signal input D (not used)
I CD focusing error negative input (not used)
I CD focusing error positive input (not used)
I 3 beam satellite PD signal negative input
I 3 beam satellite PD signal positive input
I Laser power PD monitor input
I Laser power PD monitor input
O Laser drive output
O Laser drive output
— Power supply (RF+3.3V)
O Central servo, positive main beam summing output (not used)
O RFRP low pass, or Positive main beam summing output (not used)
— Ground terminal
O Reference voltage 2.8V
O Reference voltage 2.0V
O Reference voltage 1.4V
O Focus error monitor output (not used)
O Tracking error monitor output (not used)
O TE slicing level (not used)
O Op amp output (not used)
I Op amp negative input (not used)
I Op amp positive input (not used)
O Disk motor control output. PWM output
O Feed motor control. PWM output
O Tray PWM output/tray open output.
O General PWM output
O Tracking servo output
O Focus servo output
— Ground terminal
— USB port DPLUS analog pin (not used)
— USB port DMINUS analog pin (not used)
— Power supply (SW+3.3V)
I Motor hall sensor input
Description