Sony XR-4758RDS, Руководство по обслуживанию

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VDD
SEEK/RECP
1 2 3 4 5 6 7 8 9 10
24 23 22 21 20 19 18 17 16 15
11 12
14 13
BUFFER
XTOUT
O
SC OUT
CE
DIN
CK
DOUT
SR
I/O-1 I/O-2
OUT-1 OUT-2 OUT-3
AM/FM IF VDD FM IN AM IN D-GND
FM CP OUT VT AM CP OUT
VCC RF A-GND XTIN
BUS INTERFACE
I/O PORTS
OUT PORTS
OSC IN
OR
X'TAL OSC
ON/OFF
REFERENCE
COUNTER
PHASE
COMPARATOR
20BIT
IF COUNTER
2
MODULAS
PRESCALER
12BIT
PROGRAMABLE
COUNTER
AMP AMP AMP
+ –
RIPPLE
FILTER
18BIT
18BIT
22BIT
40BIT
SHIFT
RESISTER
REF
VCC
+ –
SIG
SEEK/RECP
4BIT
SWALLOW
COUNTER
PSC
N
DATA
IC3 TDA7330BD-013TR
COSTAS
LOOP
PLL
57kHz
PHASE
DECODER
DIFF
DECODER
CLOCK
RECOVERY
PLL
1.4675kHz
ON/OFF
OSCILLATOR
fx DIVIDER
TEST LOGIC
8th ORDER
SC-BANDPASS
FILTER
2nd ORDER
ANTIALIAS
FILTER
+
–
20 19 18 17 16 15 14 13 12 11
10 9 8 6 7 3
4
5
1
2
POR TM FSEL T7 VCC ARI OUAL RODA ROCL T57
MPXIN
VREF
CMP
FILOUT
GND
T1 T3 T4
OSCOUT
OSCIN
VCC
• IC Block Diagrams (MAIN BOARD)
IC1 TB2114F (EL)