Sharp CD-BK250W Service Manual

CD-BK250W/CD-BK2600W/CD-BK270W
– 52 –
ICK1 VHiM65856SP-1: Mic Amp. (M65856SP) (2/2)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
33* KEYCONIN Input Monaural input for external KEYCONTROL IC.
Input/Output interface terminal for external KEYCONTROL IC.
34* SOURCEOUT Output Monaural input for external KEYCONTROL IC.
Input/Output interface terminal for external KEYCONTROL IC.
35 R OUT Output Rch mixing output.
36 L OUT Output Lch mixing output.
37 VCF IL — Vocal cut filter.
Processes frequencies lower then the vocal band.
38* PS1 Input Phase shift input 1.
Determines a constant at time of phase shift.
39* PS2 Input Phase shift input 2.
Determines a constant at time of phase shift.
40 LATCH Input Latch input via serial bus.
41 CLOCK Input Clock input via serial bus.
42 DATA Input Data input via serial bus.
42
DATA
41
CLOCK
40
LATCH
39
PS2
38
PS1
37
VCFIL
36
LOUT
35
ROUT
34
SOURCEOUT
33
KEYCONIN
32
RIN
31
LIN
30
VOLIN
29
LPF2OUT
28
LPF2IN2
27
LPF2IN1
26
DAINTOUT
25
DAINTIN
24
DACONT
23
VCC
22
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
GND
MIC SW
MCLKCONT
VALC
MIC1IN
ALC1
MCLK
MIC
VOL
MIC SW
(L,R)/2
L R STEREO
MIC1NFIN
MIC1OUT
MIC1VOLIN
MIC2IN
ALC2
MIC2NFIN
MIC2OUT
MIC2VOLIN
MICOUT
LPF1IN1 LPF1IN2
LPF1OUT
ADINTOUT
ADINTIN
ADCONT
REF
µ-COM I/F
PHASE
SHIFTER
SURROUND
ALC
ALC
MIC
VOL
ECHO
VOL
ECHO
F.BVOL
LPF
16kbit
SRAM
MAIN LOGIC
LPF D/A
VCC GND
ND
1/ZVcc
Figure 52 BLOCK DIAGRAM OF IC
Port NamePin No.
Input/Output

Sharp CD-BK250W Specifications

General

Brand	Sharp
Model	CD-BK250W
Category	Stereo System
Language	English