Sharp CD-C452, Руководство по обслуживанию

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CD-C452/C452C
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FUNCTION TABLE OF IC
1 VREFOUT Output Buffered reference voltage output (Vcc/2)
2 VREFIN Input Reference voltage input (Biased to Vcc/2 internally)
3 MSC3 Input Capacitor
4 MSC2 Input Capacitor
5 MSC1 Input Capacitor
6 GND — Ground
7 PSAVE Input Power save control (H: power save on, L: power save off)
STRB Input Serial data strobe (Not applicable to I
2
C of QS7777CF)
8 MUTE Input Output mute control (H: mute on, L: mute off)
SCL Input Serial data shift clock
9 SPREAD Input Enhancement control (H: spread maximum, L: spread minimum)
SDA Input/Outout Serial data input. ACK data output for I 2 C (QS7777CF)
10 AC Input Center speaker control (H: actual center, L: virtual center)
11 AR Input Rear speaker control (H: actual rear, L: virtual rear)
12 MO Input Monaural to virtual stereo control (H: on, L: off)
13 BYP Input Bypass control (H: Bypass On, L: QSurround process On)
14 P/S Input Interface mode control (H: parallel I/O, L: serial I/O)
15 VDD — Digital power supply
16* RROUT Output Rear right speaker signal out
17 RLOUT Output Rear left speaker signal out
18 COUT Output Center speaker signal out
19 FROUT Output Front right speaker out
20 FLOUT Output Front left speaker output
21 QXAC1 Input Capacitor
22 QXAC2 Input Capacitor
23 QXAC3 Input Capacitor
24 QXAC4 Input Capacitor
25 QXAC5 Input Capacitor
26 QXBC1 Input Capacitor
27 QXBC2 Input Capacitor
28 QXBC3 Input Capacitor
29 QXBC4 Input Capacitor
30 QXBC5 Input Capacitor
31 VCC — Analog power supply
32 QXCC1 Input Capacitor
33 QXCC2 Input Capacitor
34 QXCC3 Input Capacitor
35 QXCC4 Input Capacitor
36 QXDC1 Input Capacitor
37 QXDC2 Input Capacitor
38 QXDC3 Input Capacitor
39 QXDC4 Input Capacitor
40 FLIN Input Front left signal input
41 FRIN Input Front right signal input
42 CIN Input Center signal input
43* SUBIN Input Sub Woofer signal input
44 RLIN Input Rear left signal input
45* RRIN Input Rear right signal input
46 MSC4 Input Capacitor
47 MSC5 Input Capacitor
48 MSC6 Input Capacitor
IC401 VHIQS7777PF-1:Q-Sound (QS7777PF)
Terminal Name Pin No. Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function