Sony WRT-807B, Service Manual

Page: 47 / 64

5-3
WRT-807B (U/CE)
[|IC|]
IC
8
7
6
5
1
2
3
4
CS
IN
SK
IN
DI
IN
DO
OUT
V
DD
NC
ORG
GND
1
2
3
CS
DI
6
ORG
4
DO
VCC GND
MEMOROY ARRAY
R8
x
8
OR
64
x
16
DATA
REGISTER
MODE
DECODE
LOGIC
CLOCK
GENERATOR
ORG
DI
CS
SK
3
1
2
6
ADDRESS
DECODER
OUTPUT
BUFFER
4
DO
INPUT
CS
DI
SK
ORG
; CHIP SELECT
; DATA INPUT
; SERIAL CLOCK
; ORGANIZATION
OUTPUT
DO ; DATA OUTPUT
C-MOS 1,024 (64
x
16 or 128
x
8)-BIT SERIAL EEPROM
—TOP VIEW—
AT93C46-10SI-2.7-E2 (ATMEL)
V
_
V
+
_
1
2
3
5
4
+
INPUT
_ INPUT
OUTPUT
+
SINGLE OPERATIONAL AMPLIFIER
—TOP VIEW—
NJM2107F (JRC)
NJM2107F-TE2
1
2
3
4
8
7
6
5 V
EE
V
CC
_ +
+ _
DUAL OPERATIONAL AMPLIFIERS
(DUAL-SUPPLY TYPE)
—TOP VIEW—
NJM4580E-D (JRC)
NJM4580E-D-TE2
20
19
18
17
Ø
P
TEST
Ø
R
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
Ø
R
Ø
P
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
Ø P
Ø
R
CK
DATA
LAT
PS
FC
TEST
NC NC
NC
GND
V
CC
PLL FREQUENCY SYNTHESIZER (1.1 GHz BAND)
—TOP VIEW—
CXA1786N-T4 (SONY)
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
OUT
CE
EXT
LxSW
C-MOS PWM STEP-UP DC/DC CONVERTER
—TOP VIEW—
RH5RH303B (RICOH)
RH5RH303B-T1
RH5RH503B-T1
VOLTAGE DETECTOR
S-80827ANNP-EDQ-T2 (SEIKO)
1 2
GND
3
NC
4
GND
OUT V
DD
2
4
1
2
V
DD
V
REF
+
_
4
GND
1
OUT
OUT V
DD
—TOP VIEW—