Alinco DX-SR9 E, Service Manual

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16
1 1CK
2 1CLR
3 1QA
4 1QB
5 1QC
6 1QD
7 GND 8 2QD
9 2QC
10 2QB
11 2QA
12 2CLR
13 2CK
14 VCC
21) TC74VHC393FT (XA1397)
Dual Binary Counter
22) XC9504B092AR (XA1398)
2ch. Step-up/Inverting DC/DC Converter
PIN No.
1
2
3
4
5
6
7
8
9
10
Pin Name
EXT1
VDD
FB1
PWM1
EN1
EN2
PWM2
FB2
GND
EXT2
FUNCTION
External Transistor Connection 1
Supply Voltage
Output Voltage Monitor Feedback Pin 1
PWM / PFM Switching Pin 1
Enable 1
Enable 2
PWM / PFM Switching Pin 2
Output Voltage Monitor Feedback Pin 2
Ground
External Transistor Connection 2
CLR
1/13
2/12
CK
3/11
QA
R
D
CK Q
4/10
QB
R
D
CK Q
5/9
QC
R
D
CK Q
6/8
QD
R
D
CK Q
1 B 0
9 2 x x
1pin
EXT1
V
DD
FB1
PWM1
EN1
EXT2/
GND
FB2
PWM2
EN2
Vref2=0.9V
EN2
OSC
Generator
PWM/PFM
Controller2
PWM
Comparator2
EN2 to
internal circuit
Error Amp2
Ramp Wave
Generator2
Vref1=0.9V
with Soft Start1.
EN1
PWM/PFM
Controller1
PWM
Comparator1
EN1 to
internal circuit
Error Amp1
Ramp Wave
Generator1
23) AD9833BRMZ (XA1399)
Programmable Waveform Generator
24) R1EX24256ASAS0A#S0 (XA1401)
256K bits CMOS Serial EEPROM
A0
A1
A2
GND
1
2
3
4
VCC
WP
SCL
SDA
8
7
6
5
Pin
Number
1
2
3
4
5
6
7
8
Pin
Name
Function
A0
A1
A2
GND
SDA
SCL
WP
VCC
Slave address input
Slave address input
Slave address input
Groudd
Serial data input / output
Serial clock input
Write protection input
Connected to Vcc: Protection valid
Connected to GND: Protection invalid
Power supply
Remark See Dimensions for details of the package drawings.
AD9833
COMP 1 VOUT 10
VDD 2 AGND 9
CAP/2.5V 3 FSYNC 8
DGND 4 SCLK 7
MCLK 5 SDATA 6
MCLK
AGND DGND VDD
AVDD/
DVDD
2.5V
CAP/2.5V
REGULATOR
FULL-SCALE
CONTROL
ON-BOARD
AEFERENCE
MUX
PHASE0 REG
PHASE1 REG
MUX
MUX
10-BITDAC
PHASE
ACCUMULATOR
(28-BIT)
12
∑
SIN
ROM
COMP
VOUT
R
200
Ω
MUX
DIVIDE
BY 2
MSB
FREQ0 REG
CONTROL REGISTER
FREQ1 REG
SERIAL INTERFACE
AND
CONTROL LOGIC
FSYNC SCLK SDATA