Sony WRR-862A, Service Manual, Page: 67 / 96

5-5
WRR-862A/862B
SA575DK-T (PHILIPS)
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
+
_
G
G
V
CC
NE575
OP AMP
OP AMP
SUM
AMP
SUM
AMP
V
REF
10k
10k
GAIN CELL
GAIN CELL
10k
10k
RECTIFIER
3.9k
3.9k
RECTIFIER
GND
+ V
IN
1
_ V
IN
1
V
OUT
1
RECT.
IN
1
C
RECT
1
SUM
OUT
1
COMP.
IN
1
V
REF
GAIN CELL
IN
1
+ V
IN
2
_ V
IN
2
V
OUT
2
RECT.
IN
2
C
RECT
2
SUM
OUT
2
COMP.
IN
2
SUM NODE 2
GAIN CELL
IN
2
+
_
+
_
+
_
LOW VOLTAGE COMPANDOR
—TOP VIEW—
TA31161FN (EL) (TOSHIBA)
1
OSC
IN
2
OSC
OUT
3
BS
4
MIX
OUT
5 6
DEC
8
15 14
AF
OUT
13
QUAD
12
IF
OUT2
11
IF
OUT1
10
RSSI
9
7
IF
IN
MIX
IN
LOCAL
OSC
MIXER
DETECTOR
GND
GND Vcc1
Vcc2
RSSI
IF AMP
IF DETECTOR
—TOP VIEW—
: LOCAL OSC INPUT
; BATTERY SAVE
; MIXER OUTPUT
; BIAS FOR IF INPUT
; IF INPUT
; RSSI OUTPUT
; IF LIMITTER OUTPUT
; PHASE INPUT FOR FM DETECTOR
; DEMODULATION SIGNAL OUTPUT
; MIXER INPUT
OSC IN, OUT ;
BS
MIXER OUT
DEC
IF IN
RSSI
IF OUT1, 2
QUAD
AF OUT
MIX IN
16
TA75W393FU-TE12R (TOSHIBA)
8
1 2 3
7 6 5
4
V
EE
V
CC
+
_
_
+
DUAL COMPARATORS
—TOP VIEW—
TC7SU04FU (TE85R) (TOSHIBA)
1
2
GND 3
5 V
DD
4
A A Y =
2 4
Y
A
0
1
Y
1
0
0 : LOW LEVEL
1 : HIGH LEVEL
Y = A
C-MOS INVERTER
—TOP VIEW—
TC7W14FU (TE12R) (TOSHIBA)
Y = A A Y
Y = A
1
3
6
7
5
2
0 : LOW LEVEL
1 : HIGH LEVEL
8
7
6
5
1
2
3
4
Y
1
0
A
0
1
C-MOS HEX INVERTERS
—TOP VIEW—
TC7W53FU (TE12R) (TOSHIBA)
1
INH
0
0
1
A
0
1
x
ch0
ch1
OPEN
2
3
OPEN
INH V
EE
ch1
ch0
2 3
C
A
6
7
1
5
GND 4
8 V
DD
6
7
5
ON
CHANNEL
CONT. INPUT
C-MOS 2-CHANNEL MULTIPLEXER/DEMULTIPLEXER
—TOP VIEW—
0
1
x
: LOW LEVEL
: HIGH LEVEL
: DON’T CARE
TK11230BMCL (TOKO)
GND GND
CONT
NOISE BYPASS
NOISE BYPASS
V
IN
V
IN
V
OUT
1 6
5
6
4
4
2
3
V
OUT
6
1
V
IN
CONT
3
NOISE BYPASS
CONT
V
OUT
3
1
4
+
_
+
_
THERMAL
PROTECTION
BANDGAP
REFERENCE
REGULATOR USED FOR POWER SUPPLY
—TOP VIEW—
TK70006STL (TOKO)
VOUT
ON/OFF
CONT
5
VIN
1 2 3
FIL GND
4
RIPPLE FILTER
—TOP VIEW—
1
Vin
3
FIL
2
GND
5
Vout
4
CONT
+
_
300k
Ω
300k
Ω
0.6
µ
A