Sony XR-1800R Service Manual page 24

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• IC Block Diagrams
– MAIN Board –
IC121 LC7216M
20 19 18 17
PHASE DETECTOR
CHARGE PUMP
SWALLOW
REFERENCE
COUNTER
DIVIDER
1/16, 1/17 4BIT
2 3
1
TE
L 13942296513
IC150 TDA7330BD-013TR
20
19 18
2nd ORDER 8th ORDER
ANTIALIAS SC-BANDPASS
FILTER FILTER
VCC
1 2
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16 15 14
1/2
UNIVERSAL
COUNTER
12BIT
PROGRAMMABLE
DIVIDER
SHIFT REGISTER LATCH
4 5 6 7
17 16 15 14
COSTAS
+
LOOP
PLL
–
57kHz
TEST LOGIC
3 4 5 6 7
x ao
y
i
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8
13 12 11
8 9 10
Q Q
3 6 7 1 3
13 12 11
DIFF
PHASE
DECODER
DECODER
CLOCK
RECOVERY
PLL
1.4675kHz
ON/OFF
OSCILLATOR
fx DIVIDER
8 9 10
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2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9