Sony HCD-HX50BTR Service Manual page 50

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
• IC Pin Function Description
CD BOARD IC101 TC94A70FG-101 (CD-MP3 PROCESSOR)
Pin No. Pin Name
1 AVSS3
2 RFZi
3 RFRP
4 SBAD/RFDC
5 FEi
6 TEi
7 TEZi
8 AVDD3
9 FOo
10 TRo
11 VREF
12 FMO
13 DMO
14 VSSP3
15 VCOi
16 VDDP3
17 VDD1
18 VSS1
19 FGiN
20 IO0 (/HSO)
21 IO1 (/UHSO)
22 XVSS3
23 XI
24 XO
25 XVDD3
26 DVSS3
27 RO
28 DVDD3
29 DVR
30 LO
31 DVSS3
32 VDDT3
33 VSS1
34 VDD1
35 VDDM1
36 SRAMSTB
37 XRST
38, 39 BUS0, BUS1
40 BUS2 (SO)
41 BUS3 (SI)
42 BUCK (CLK)
43 XCCE
44 TEST
45 IRQ
46 AoUT3 (PO4)
47 AoUT2 (PO5)
48 PIO0
49 PIO1
50 PIO2
51 PIO3
52 VSS1
53 VDDT3
54 SBSY
55 SBOK/FOK
50
I/O
- Ground terminal
I RF ripple zero crossing signal input terminal
O RF ripple signal output terminal
O Sub beam addition signal or RF peak detection signal output terminal
O Focus error signal output terminal
O Tracking error signal output terminal
I Tracking error zero crossing signal input terminal
- Power supply terminal (+3.3 V)
O Focus coil drive signal output terminal
O Tracking coil drive signal output terminal
I Reference voltage (+1.65V) input terminal
O Sled motor drive signal output terminal
O Spindle motor drive signal output terminal
- Ground terminal
I VCO control voltage input terminal
- Power supply terminal (+3.3 V)
- Power supply terminal (+1.5 V)
- Ground terminal
I FG signal input terminal
I Disc inner position detection signal input terminal
O Not used
- Ground terminal
I System clock input terminal (16.9344 MHz)
O System clock output terminal (16.9344 MHz)
- Power supply terminal (+3.3 V)
- Ground terminal
O Analog audio (R-ch) signal output terminal
- Power supply terminal (+3.3 V)
O Reference voltage (+1.65V) output terminal
O Analog audio (L-ch) signal output terminal
- Ground terminal
- Power supply terminal (+3.3 V)
- Ground terminal
- Power supply terminal (+1.5 V)
- Power supply terminal (+1.5 V)
I S-RAM standby mode control signal input terminal
I Reset signal input from the system controller
I Serial data input from the system controller or USB controller
I Serial data input from the system controller or USB controller
I Serial data input from the system controller or USB controller
I Serial data transfer clock signal input from the system controller or USB controller
I Chip enable signal input from the system controller or USB controller
I Setting terminal for test mode
I Interrupt request signal input terminal
O Not used
O Audio data output to the USB controller
O Request signal output to the system controller or USB controller
O Request signal output to the USB controller
O Not used
I Gate signal input from the USB controller
- Ground terminal
- Power supply terminal (+3.3 V)
O Subcode block sync signal output to the system controller
O Not used
Description
Not used
Not used
Fixed at "L" in this set
"L": reset
Normally fi xed at "L"
Not used