Sony WRR-862A, Руководство по обслуживанию, Страница: 65 / 96

5-3
WRR-862A/862B
IC
[|IC|]
24LC64T-I/SN (MIC)
A0
IN
A1
IN
A2
IN
1
2
3
4
8
7
6
5
V
CC
WP
IN
SCL
IN
SDA
I/O
GND
EEPROM MEMORY
—TOP VIEW—
INPUTS
A0 - A2
SCL
WP
INPUT/OUTPUT
SDA
: ADDRESS
: SERIAL CLOCK
: WRITE PROTECT
: SERIAL DATA
CXA1611N-T4 (SONY)
FM/AM RADIO
—TOP VIEW—
GND
FM DISCRI
IN
AM OSC
IN
AFC
IN
FM OSC
IN
REG
OUT
FM RF
IN
AM RF IN
IN
NC
FM RF IN
IN
GND
FM/AM FE
OUT
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
BAND SIG
OUT
V
CC
RIPPLE
IN
DET
OUT
AFC/AGC1
IN
AFC/AGC2
IN
AM IF OUT
OUT
IF GND
METER
OUT
FM IF IN
IN
AM IF IN
IN
BAND SELECT
IN
INPUTS
AFC
AFC/AGC1, AFC/AGC2
AM IF IN
AM OSC
AM RF IN
BAND SELECT
FM DISCRI
FM IF IN
FM OSC
FM RF IN
RIPPLE
OUTPUTS
AM IF OUT
BAND SIG
DET
FM/AM FE
METER
REG
OTHER
NC
: AUTOMATIC FREQUENCY CONTROL
: AUTOMATIC GAIN AND FREQUENCY CONTROL
: AM IF INPUT STAGE
: AM LOCAL OSCILLATOR
: AM RF AMPLIFIER
: BAND SELECT FOR FM/AM
: FM DISCRIMINATOR
: FM IF AMPLIFIER
: FM LOCAL OSCILLATOR
: FM RF AMPLIFIER
: RIPPLE FILTER
: AM IF
: BAND SIGNAL OUTPUT WIDTH CONTROL
: DETECTOR
: AM AND FM FRONT-END
: METER DRIVER
: REGULATOR VOLTAGE
: NO CONNECTION
AM IF
DET AGC
FM IF
DISCRI
TUNING
METER
BAND SIGNAL
OUTPUT CONTROL
FM RF IN
10
AM RF IN
8
AM FE
AM OSC
3
FM IF IN
15
AM IF IN
14
AFC/AGC1
20
FM/AM BAND SELECT
13
REGULATOR
RIPPLE FILTER
22
RIPPLE FILTER
AFC
FM OSC
FM RF
4
5
7
FM DISCRI
2
FM FE FM/AM FE
12
AM IF OUT
18
DET
21
METER
16
BAND SIG
24
AFC/AGC2
19
REG
6
LA4534M-TE-L (SANYO)
POWER SWITCH
IN1
PRE GND
IN2
REF
1
2
3
4
5
10
9
8
7
6
MUTE SWITCH
OUT1
POWER GND
OUT2
V CC
2-CH MINI POWER AMPLIFIER
—TOP VIEW—
Amp1
Amp2
BIAS
POWER
SWITCH
MUTE
CIRCUIT
MAX2632EUK-TG069 (MAXIM)
1
2
3
5
6
BIAS
BIAS
GND
OUT
V
CC
IN
RF AMPLIFIER
—TOP VIEW—
MAX2640EUT-TG069 (MAXIM)
1
2 5
3
6
4
RFIN
GND
GND
RFOUT
GND
V
CC
LOW NOISE RF AMPLIFIER
—TOP VIEW—
MAX2681EUT-TG069 (MAXIM)
1 LO
GND
RFIN
6
2
3 4 RFOUT
5 V
CC
SHUTDOWN
DOWNCONVERTER MIXER
—TOP VIEW—