Schematic Diagram - Main Section - Sony XR-C7200R Service Manual

• IC Block Diagrams
– MAIN Board –
IC10 TB2114FN (EL)
24 23 22 21 20 19
RIPPLE
FILTER
– +
VCC
SEEK/RECP
REF PHASE
COMPARATOR
REFERENCE
18BIT
COUNTER
18BIT
OSC IN
OR ON/OFF
X'TAL OSC
BUFFER
BUS INTERFACE
1 2 3 4 5 6
IC150 SAA6579T
16 15 14
OSCILLATOR
QUALITY BIT
GENERATOR
DIFFERENTIAL
DECODER
1 2 3
18 17 16 15
– +
AMP AMP
SEEK/RECP
PSC
4BIT 2
SWALLOW MODULAS
COUNTER PRESCALER
12BIT
SIG
PROGRAMABLE
COUNTER
40BIT
22BIT SHIFT
IF COUNTER
RESISTER
N
I/O PORTS OUT PORTS
DATA
7 8 9 10 11 12
13 12
RECONSTRUCTION
AND
FILTER
DIVIDER
COSTAS LOOP
BIPHASE
VARIABLE AND
SYMBOL
FIXED DIVIDER
DECODER
CLOCK REGENERATION
4 5
14 13
VDD
AMP
20BIT
11 10 9
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
57KHz
ANTI-
BANDPASS
ALIASING
(8th ORDER)
FILTER
CLOCKED
COMPARATOR
AND SYNC
Vp1
REFERENCE
VOLTAGE
6 7 8
– 38 –