0 : Non Diode
1 : Diode
Table
5-1
Destination
List
of
Tuner
Destination
B A N D
Receive
frequency
range
channel
space
IF
PLL
reference
frequency
Destination DSW(X14-)
D S W 2
D S W 1
D S W 0
(X00)D47
K1
FM
87.5MHz~108.oMHz
100kHz
10.7MHz
50kHz
0
0
0
AM
530kHz~1700kHz
10kHz
450kHz
10kHz
K2
(M)
FM
87.5MHz~108.0MHz
100kHz
10.7MHz
50kHz
0
0
1
AM
530kHz~1610kHz
10kHz
450kHz
10kHz
CIRCUIT DESCRIPTION
(AC-3/DSP)
(X08) IC63
ADC
(X08) IC21~26
DAC
ZR38500
PD
(X08) IC1~6
LPF
(X08) IC41, 42
DSP
LPFDT, LPFCK,
LPFSTB
RESET , REQUEST,
READY, DATA, CLOCK
ACUNOLIGE
SS , SO , SI ,
SCK , RESET
(X08) IC77
DIR
ERROR, SUB1, SUB2,
SWDT,XLAT, SCLK,
SRDT, XMODE,ENPHA
(X09) Q43
MUTE
SUBMUTE , SWMUTE
(X08) IC66
SELECTOR
DIGSEL1, DIGSEL2
DESTINATION SW
H : KC-Z1
L : KR-V990D
(X08)
IC50
(X08) IC78
DIGITAL SW
DIGSWSEL
(X00) IC31
MAIN U-COM
MCK, MDT, SDT,
MREQ
SUB U-COM
78P058GC1ACA
1-3. Key matrix (12KEY + 4 SW)
2. Sub microprocessor : 78P058GC1ACA (X08:IC50)
2-1. Microprocessor periphery block diagram
74 KR0
75 KR1
76 KR2
77 KR3
78 KS0
LD
TV
CABLE
VCR
79 KS1
CD
BEEP
MUTE
POWER
80 KS2
MD
TAPE 1
TUNER
PHONO
81 KS3
DSW0
DSW1
DSW2
DSW3
*No. of
: Port No. of µ-COM
1-4. Destination list of tuner
www. xiaoyu163. com
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TEL 13942296513
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TEL 13942296513 QQ 376315150 892498299