XR-5790R/5800R
SERVICE MANUAL
Photo: XR-5800R
AEP Model
UK Model
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.
SPECIFICATIONS
Model Name Using Similar Mechanism NEW
Tape T r ansport Mechanism Type
MG-25G-136
MICROFILM
FM/MW/LW CASSETTE CAR STEREO
• IC Block Diagrams – MAIN Board –
IC1 TB2114F (EL)
VCC
RF
A-GND
XTIN
24 23 22
RIPPLE
FILTER
SEEK/RECP
AM CP OUT
21
20 19 18
+
–
VCC
VT
+
–
4BIT
SWALLOW
COUNTER
FM CP OUT
SEEK/RECP
MODULAS
PRESCALER
D-GND
17 16
PSC
2
SECTION 6
DIAGRAMS
AM/FM IF
VDD
FM IN
AM IN
14
15
13
VDD
AMPAMPAMP
REF
PHASE
COMPARATOR
OSC IN
OR
X'TAL OSC
1
XTOUT
REFERENCE
COUNTER
ON/OFF
BUFFER
2
SC OUT
18BIT
18BIT
BUS INTERFACE
3
4
CE
DIN
IC3 TDA7330BD-013TR
POR
20
TM
19 18 17 16 15 14 13 12 11
FSEL
12BIT
SIG
PROGRAMABLE
COUNTER
40BIT
SHIFT
22BIT
RESISTER
N
I/O PORTS
DATA
6
5
CK
DOUT
T7
7 8 9 10
SR
I/O-1
VCC
OUT PORTS
I/O-2
11
OUT-1
ARI
IF COUNTER
12
OUT-2
OUT-3
OUAL
20BIT
RODA
ROCL
T57
2nd ORDER
ANTIALIAS
FILTER
1
MPXIN
8th ORDER
SC-BANDPASS
FILTER
VCC
2
VREF
CMP
4
FILOUT
5
GND
+
–
TEST LOGIC
T1
COSTAS
LOOP
PLL
57kHz
T3
PHASE
DECODER
RECOVERY
1.4675kHz
T4
DIFF
DECODER
CLOCK
PLL
– 18 –
ON/OFF
OSCILLATOR
fx DIVIDER
10986 73
OSCOUT
OSCIN