Sony HCD-DZ370, Service Manual

Page: 72 / 102

HCD-DZ370/DZ560/DZ570/DZ660/DZ777
72
• IC Pin Function Description
MAIN BOARD (2/9) IC1101 CXD9917R
(CD/DVD RF AMP, FOCUS/TRACKING ERROR AMP, DVD SYSTEM CONTROL, DIGTAL SERVO PROCESSOR, DIR/USB
CONTROL)
Pin No. Pin Name I/O Description
1 OSN — RF offset cancellation capacitor connecting terminal
2 RFGC I RF AGC loop capacitor connecting terminal
3 IREF I Current reference setting terminal
4 AVDD3 — Power supply (VDD3.3V)
5 AGND — Ground
6 DVDA I AC coupled input path A
7 DVDB I AC coupled input path B
8 DVDC I AC coupled input path C
9 DVDD I AC coupled input path D
10 DVDRFIP I DC coupled DVD RF signal input RFIP
11 MA I DC coupled main-beam RF signal input A
12 MB I DC coupled main-beam RF signal input B
13 MC I DC coupled main-beam RF signal input C
14 MD I DC coupled main-beam RF signal input D
15 SA — Not used (Open)
16 SB — Not used (Open)
17 TNI I DC coupled main-beam RF signal input E
18 TPI I DC coupled main-beam RF signal input F
19 MDI1 I Laser power monitor input
20 MDI2 I Laser power monitor input
21 LDO2 O Laser diode (DVD) drive signal output
22 LDO1 O Laser diode (CD) drive signal output
23 SVDD3 — Power supply (RF+3.3V)
24 CSO O Not used (Open)
25 RFLVL O RFRP low pass output
26 SGND — Ground
27 V2REFO O Reference voltage (2.8V) output
28 V20 O Reference voltage (2.0V) output
29 VREFO O Reference voltage (1.4V) output
30 FEO O Focus error monitor output
31 TEO O Tracking error monitor output
32 TEZISLV O TE Slicing Level input
33 OP_OUT O Op amp output
34 OP_INN I Op amp negative input
35 OP_INP I Spindle feedback signal input
36 DMO O Disc motor control PWM output
37 FMO O Feed motor control PWM output
38 TROPENPWM O Tray PWM output/Tray open output
39 IOPMON I Iop Monitor input
40 TRO O Tracking servo control signal output
41 FOO O Focus servo control signal output
42 AGND18 — Ground
43 AVDD18 — Power supply (+1.8V)
44 USB_DP I/O USB port serial data input/output
45 USBDM I/O USB port serial data input/output
46 USB_VDD3 — USB power supply (+3.3V)
47 USB_VSS — USB ground
48 PAD_VRT — Not used
49 USB_VDD18 — Power supply (+1.8V)
50 USB_VSS I Ground
51 DIR_ERROR/NC I DIR PLL error signal input
52 DIR_AUDIO/NC I DIR audio signal input (Not used in this set)
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