JVC KD-LX300 Service Manual page 35

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TA2147F-X (IC601) : Head amp
3 7 63 1515 0
1. Pin layout & Block diagram
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L 13942296513
2. Pin function
Pin No. Symbol
1 Vcc
2 FIN
3 FPI
4 TPI
5 TNI
6 MDI
7 LDO
8 SEL
9 TEBC
10 TEN
11 TEO
12 RFDC
13 GVSW
14 VRO
15 FEO
16 FEN
17 RFRP
18 RFRPIN
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19 RFGO
20 RFGC
21 AGCIN
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22 RFO
23 RFN
24 GND
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30 k
180 k
40 pF
I/O Function
- 3.3V power supply terminal
I Main-beam amp input terminal
I Main-beam amp input terminal
I Sub-beam amp input terminal
I Sub-beam amp input terminal
I Monitor photo diode amp input terminal
O Laser diode amp output terminal
I APC circuit ON/OFF control signmal, laser diode (LDO) control signal input or
bottom/peak detection frequency change terminal
I Tracking error balance adjustment signal input terminal
I Tracking error signal generation amp negative-phase input terminal
O Tracking error signal generation amp output terminal
O RF signal peak detection output terminal
I AGC/FE/TE amp gain change terminal
O Reference voltage (VRO) output terminal
O Focus error signal generation amp output terminal
I Focus error signal generation amp negative-phase input terminal
O Signal amp output pin for track count
I Signal generation amp input terminal for track count
O RF signal amplitude adjustment amp output terminal
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I RF amplitude adjustment control signal input terminal
I RF signal amplitude adjustment amp input terminal
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O RF signal generation amp output terminal
I RF signal generation amp input terminal
- GND terminal
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2 9
8
10 pF
40 k
1.3V
40 k
60 A
Q Q
3 6 7 1 3 1 5
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.
KD-LX300/KD-LX100
9 4 2 8
10 pF
0 5 8 2 9 9 4 2 8
m
9 9
9 9
1-35