Sony WRT-847A, Руководство по обслуживанию

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5-3
WRT-847A/847B
IC
[|IC|]
ADG704BRM-REEL7 (AD)
1
2
3
4
5
A0
X1
GND
X2
EN
A1
X3
XC
X4
V
CC
10
9
8
7
6
2
4
9
7
10
1
X1
X2
X3
X4
A0
A1
5
EN
OPEN
OPEN
CONTROL
INPUTS
EN A1 A0
ON
CHANNEL
0
1
x
: LOW LEVEL
: HIGH LEVEL
: DON T CARE
XC 8
1
1
1
1
0
0
0
1
1
x
0
1
0
1
x
1
2
3
4
OPEN
4-CHANNEL ANALOG MULTIPLEXER
TOP VIEW
ADG719BRT-REEL7 (AD)
A 1
A
0
1
ch0
ch1
V
DD
2
ch1
ch0 C
A
6
4 5
1
GND 3
6 ch1
4 ch0
5 C
ON
CHANNEL
CONT. INPUT
SPDT SWITCH
TOP VIEW
0
1
: LOW LEVEL
: HIGH LEVEL
AT24C64N-10SI-1.8-TR (ATMEL)
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
SERIAL
CONTROL
LOGIC
WP
SCL
SDA
7
6
5
EN
LOAD
LOAD
R/W
D
IN
D
OUT
COMP
INC
D
OUT
/ACK
LOGIC
EEPROM
DATA RECOVERY
H.V. PUMP/TIMING
X DEC
SERIAL MUX Y DEC
A2
A1
A0
3
2
1
START
STOP
LOGIC
DEVICE
ADDRESS
COMPARATOR
DATA WORD
ADDR/COUNTER
CXA1786N-T4 (SONY)
20
19
18
17
flP
TEST
flR
16
15
14
13
Do2
FC
LAT
DATA
PS
CK
1
2
3
4
5
6
7
8
9
10
12
11
OSCI
OSCO
Vp
Do1
LD
FIN
PHASE
COMPARATOR
PROGRAMMABLE
COUNTER
PULSE SWALLOW
PROGRAMMABLE
COUNTER
CHARGE
PUMP 1
CHARGE
PUMP 2
SHIFT RESISTOR
LATCH
flR
flP
TEST
Do2
LAT
FC
PS
DATA
CK
OSCI
OSCO
Vp
Do1
LD
FIN
1
3
4
6
10
8
15
12
13
11
17
16
20
18
14
: REFERENCE FREQUENCY INPUT
: REFERENCE FREQUENCY OUTPUT
: POWER SUPPLY FOR CHARGE PUMP,
PHASE COMPARATOR
: CHARGE PUMP 1 OUTPUT
: CHARGE PUMP 2 OUTPUT
: LOCK DETECTION SIGNAL OUTPUT
: PHASE COMPARATOR OUTPUT
: PHASE COMPARATOR OUTPUT
: CLOCK INPUT
: DATA INPUT
: LATCH INPUT
: POWER SAVE INPUT
( L : POWER SAVE MODE)
: SELECTION TERMINAL FOR PHASE OF
PHASE COMPARATOR OUTPUT AND
COUNTER OUTPUT SIGNAL TO TEST
TERMINAL
: OUTPUT FOR DIVIDING SIGNAL OF
COUNTER
OSCI
OSCO
Vp
Do1
Do2
LD
flP
flR
CK
DATA
LAT
PS
FC
TEST
NC NC
NC
GND
V
CC
PLL FREQUENCY SYNTHESIZER (1.1 GHz BAND)
TOP VIEW
MC33077DR2 (MOTOROLA)
1
2
3
4
8
7
6
5 V
EE
V
CC
_ +
+ _
DUAL OPERATIONAL AMPLIFIERS
TOP VIEW
NJM2107F-TE2 (JRC)
V _
V +
_
1
2
3
5
4
+ INPUT
_ INPUT
OUTPUT
+
SINGLE OPERATIONAL AMPLIFIER
TOP VIEW
RH5RH583B-T1 (RICOH)
GND LX
5 4
1 2 3
4
3
1
2
LX
EXT
CE
OUT
GND
5
LX
EXT
CE
OUT
; SWITCHING TERMINAL (OPEN DRAIN)
; EXTERNAL TRANSISTOR DRIVE (CMOS OUTPUT)
; CHIP ENABLE
; STEP-UP OUTPUT VOLTAGE MONITOR
V
LX
LIMITER SLOW START V REF.
BUFFER
PWM CONTROLE
OSC
CHIP ENABLE
PHASE
COMPARATOR
—
+
2
OUT
ERROR AMP.
LX
4
GND
5
EXT
3
CE
1
—TOP VIEW—
C-MOS PWM STEP-UP DC/DC CONVERTER
OUT CE EXT
LxSW