Sony XR-1800R Service Manual ▷ View online
– 23 –
– 24 –
5-4.
SCHEMATIC DIAGRAM – MAIN Section (2/2) –
•
See page 18 for Waveforms.
•
See page 29 for IC Block Diagrams.
XR-1800R
(Page 27)
5-5.
PRINTED WIRING BOARD – PANEL Section –
– 25 –
– 26 –
XR-1800R
• Semiconductor
Location
Ref. No.
Location
D900
B-5
D901
B-5
D902
B-5
D903
B-5
D904
A-5
IC900
A-6
(Page 19)
– 27 –
– 28 –
5-6.
SCHEMATIC DIAGRAM – PANEL Section –
•
See page 18 for Waveform.
XR-1800R
(Page 24)
– 29 –
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC121
LC7216M
IC150
TDA7330BD-013TR
16
15
14
13 12 11
PHASE DETECTOR
CHARGE PUMP
12BIT
PROGRAMMABLE
DIVIDER
SWALLOW
COUNTER
1/16, 1/17 4BIT
REFERENCE
DIVIDER
1/2
UNIVERSAL
COUNTER
SHIFT REGISTER LATCH
20
19
18
17
1
2
3
4
5
6
7
8
9
10
X IN
CE
DI
CL
DO
IN 0
IN 1
OUT1
OUT2
OUT3
OUT4
OUT5
LCTR
HCTR
AMIN
FMIN
VDD
PD
VSS
X OU
T
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
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