Sony MEX-BT5100 Service Manual page 49

• IC Pin Function Description
SERVO BOARD IC2 TC94A70FG-002 (RF AMP, DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR)
Pin No. Pin Name
1 AVSS3
2 RFZI
3 RFRP
4 SBAD/RFDC/ETE
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 VDD1-1
18 VSS1-1
19 FGIN
IOO (/HSO),
20, 21
IOI (/UHSO)
22 XVSS3
23 XI
24 XO
25 XVDD3
26 DVSS3-1
27 RO
28 DVDD3
29 DVR
30 LO
31 DVSS3-2
32 VDDT3-1
33 VSS1-2
34 VDD1-2
35 VDDM1
36 MSTBY
37 /RST
38 to 41 BUS0 to BUS3
42 BUCK (CLK)
43 /CCE
44 TEST
45 IRQ
AOUT3 (PO4),
46, 47
AOUT2 (PO5)
48 PIO0
49, 50 PIO1, PIO2
51 PIO3
52 VSS1-3
53 VDDT3-2
54 SBSY
55 SBOK/FOK
56 IPF
57 SFSY/LOCK
58 ZDET
I/O
- Ground terminal
I RF ripple zero crossing signal input terminal
O RF ripple signal output terminal
Subbeam addition signal output/RF peak detecting phase signal output for hologram selec-
O
tion terminal Not used
I Focus error signal input terminal
I Tracking error signal input terminal
I Tracking error signal zero crossing input terminal
- Power supply terminal (+3.3 V)
O Focus servo equalizer signal output terminal
O Tracking servo equalizer signal output terminal
I Reference voltage (+1.65V) input terminal
O Feeding servo equalizer signal output terminal
O Disc servo equalizer signal output terminal
- Ground terminal
I DSP VCO control voltage input terminal
- Power supply terminal (+3.3 V)
- Power supply terminal (+1.5 V)
- Ground terminal
I FG signal input terminal for CAV
- 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 R channel data (positive) output terminal
- Power supply terminal (+3.3 V)
I Reference voltage (+1.65V) input terminal
O L channel data (positive) 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 from the CD system control
I Reset signal input from the CD system control
I/O Bus data input/output with the CD system control
I Bus clock signal input from the CD system control
I Chip enable signal input from the CD system control
I Setting terminal for test mode
I Interrupt request signal input terminal
- Not used
O Request signal output to the CD system control
- Not used
I Muting on/off control signal input from the CD system control
- Ground terminal
- Power supply terminal (+3.3 V)
- Not used
- Not used
- Not used
- Not used
O Zero detection signal output to the CD system control
Description
Not used
Not used
Normally fi xed at "L"
Not used
MEX-BT5100
"L": mute
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