Sony WRR-862A Service Manual page 65

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