GW-instek 8210 Service Manual

SERVICE MANUAL

MODEL 8210

SWEEP/FUNCTION GENERATOR

DAGATRONICS CORPORATION

1. PERFORMANCE CHECK PROCEDURE

2. ADJUSTMENT PROCEDURE

3. TROUBLESHOOTING PROCEDURE

4. PARTS LIST

5. CIRCUIT DIAGRAM

CONTENTS

2

1. PERFORMANCE CHECK PROCEDURE

1-1. General
This section contains the Procedures required to check and maintain specified instrument
performance. The adjustments should be performed at an ambient temperature of
23°C ±5°C and a relative humidity of less than 60%. It allows the instrument to stabilize at

this environment for a minimum of 30 minutes.

1-2. Equipment's required
Table 1-1 is shown test equipment's required.

Table 1-1 Equipment's required

No. Equipment name Specification Remark

1. Frequency Counter DC to 60 MHz

2. Oscilloscope DC to 20 MHz

3. AC Millivolt Meter Up to 30 Vrms

4. Distortion Analyzer 0.01% 100kHz

5. DC Power Supply DC 0 to 10V

6. Signal Generator 200mHz to 110 MHz

7. FEEDTHROUGH TERMINATION 50 Ω

1-3. Performance check

1-3-1. OUTPUT FREQUENCY RANGE
SPECIFICATION

0.1 Hz TO 10 MHz

ACCURACY
+/- 5 % OF SETTING

EQUIPMENT
FREQUENCY COUNTER
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω (if necessary)

PROCEDURE

2. Set 8210 as follows;

- Function ; SINE WAVE ( )

3

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; CENTER

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

- SWEEP ; OFF(PUSH IN)

2. Connect the frequency counter to output terminal.

3. Set the frequency counter to frequency measurement.

4. Set the output frequency of this product by FREQUENCY RANGE and DIAL and verify
counter frequency reading as follows;

8210 setting Counter reading

Range Frequency

1M 10.000 MHz

100.00 kHz

100k 1.0000 MHz

10.000 kHz

10k 100.00 kHz

1.0000 kHz

1k 10.000 kHz

100.00 Hz

100 1.0000 kHz

10.000 Hz

10 100.00 Hz

1.0000 Hz

1 10.000 Hz

100.00 mHz

** For reading less than 200 mHz, you can read by period value.
200mHz ; 5.000 sec
100 mHz ; 10.000 sec

1-3-2. AMPLITUDE AND ATTENUATION
SPECIFICATION
Amplitude range ;100mVp-p to 10Vp-p IN TO 50Ω
Attenuation ;20 dB

ACCURACY
Lower than 100mVp-p(IN TO 50Ω) at MIN.
Higher than 10Vp-p(IN TO 50Ω) at MAX.

4

EQUIPMENT
Oscilloscope
AC Millivoltmeter
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω

PROCEDURE

1. Set this product as follows;

- Function ; SINE WAVE ( )

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; CENTER

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

- SWEEP ; OFF(PUSH IN)

2. Connect the oscilloscope through FEEDTHROUGH TERMINATION 50 Ω
to output terminal.

3. Set Amplitude Control to Min. position and check the output level is lower than
100mVp-p(less 5div in 20mV/div).

4. Set Amplitude Control to Max. position and check the output level is higher than
10Vp-p(higher than 4div in 5V/div).

5. Set Amplitude Control to Min. position and connect AC Millivoltmeter to output
terminal.

6. Set the Range of AC millivoltmeter to 3V range and adjust Amplitude control for
0dB reading on AC millivoltmeter.

7. Push in “20dB ATT switch” and check the reading of AC Millivoltmeter is -20 dB.

1-3-3. SINE WAVE CHARACTERISTICS
SPECIFICATION
Total harmonic Distortion(THD) ; ≤ 1 % (10Hz to 100kHz)

EQUIPMENT
Distortion analyzer
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω (if necessary)

PROCEDURE

1. Set this product as follows;

- Function ; SINE WAVE ( )

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; CENTER

5

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

- SWEEP ; OFF(PUSH IN)

2. Connect the distortion analyzer to output terminal.

3. Check the distortions of output signal are less than 1% from 10Hz to 100kHz.

1-3-4. TRIANGLE/SQUARE WAVE CHARACTERISTICS
SPECIFICATION
Linearity of Triangle Wave ; ≥ 99 % (10Hz to 100kHz)
Rise and Fall Time of Square Wave ; Less than 120nS at 10MHz Max. output level

EQUIPMENT
Oscilloscope
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω (if necessary)

PROCEDURE

1. Set this product as follows;

- Function ; TRIANGLE WAVE ( )

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; CENTER

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

- SWEEP ; OFF(PUSH IN)

2. Connect the oscilloscope to output terminal.

3. Check the linearity of Triangle wave from 10Hz to 100kHz.

4. Change the function to “SQUARE WAVE( )” and check the rise and fall time at
10MHz Max. output level.

1-3-5. TTL OUTPUT
SPECIFICATION
TTL OUTPUT - Rise and Fall Time ; Less than 25nS

- Output Level ; TTL LEVEL (H ≥ 2.4V , L ≤ 0.4V)

EQUIPMENT
Oscilloscope
BNC CABLE

6

PROCEDURE

1. Set this product as follows;

- FREQ. RANGE ; 10k

- FREQ. DIAL ; 10kHz

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

- SWEEP ; OFF(PUSH IN)

3. Set the oscilloscope to 1V/div, 5uS/div and connect to TTL output terminal.

4. Check the rise and fall time of TTL SQUARE WAVE on CRT( 5div ).

1-3-5. DC OFFSET CONTROL
SPECIFICATION
MIN. ; lower than -10 V DC (Open circuit)
MAX. ; higher than +10 V DC (Open circuit)

EQUIPMENT
Oscilloscope
BNC CABLE

PROCEDURE

1. Set this product as follows;

- Function ; SQUARE ( )

- ATT ; 0 dB(PULL OUT)

- FREQ. RANGE ; 10k

- FREQ. DIAL ; 10kHz

- AMPLITUDE ; CENTER

2. Set Oscilloscope to 5V/DIV, 10uS/DIV, DC Coupling and connect to output terminal.

3. Adjust Amplitude Control for 2DIV on CRT.

4. Pull out “DC OFFSET” Control and set to “MIN.” position and check the DC OFFSET
level is lower than -10V(Lower than -2DIV).

5. Set “DC OFFSET” Control to “MAX.” position and check the DC OFFSET level is higher
than +10V(Higher than +2DIV).

1-3-6. SYMMETRY CONTROL
SPECIFICATION
MIN. ; lower than 1:10
MAX. ; higher than 10:1

7

EQUIPMENT
Oscilloscope
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω (if necessary)

PROCEDURE

1. Set this product as follows;

- Function ; SQUARE ( )

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; CENTER

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

- SWEEP ; OFF(PUSH IN)

2. Connect the oscilloscope to output terminal.

3. Set the output frequency to 10kHz.

4. Pull out SYM Control and adjust to Min. position. And check the symmetry(duty
ratio) is “lower than 1:10”.

5. Adjust SYM Control to Max. position and check the symmetry(duty ratio) is”higher
than 10:1”.

1-3-7. SWEEP FUNCTION
SPECIFICATION
Sweep Width ; 1:1 to 100:1
Sweep Rate ; 0.5Hz to 50Hz(20mS to 2 S)

EQUIPMENT
Oscilloscope
Frequency Counter
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω (if necessary)

PROCEDURE

1. Set this product as follows;

- Function ; SINE WAVE ( )

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; CENTER

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

2. Connect the oscilloscope and Frequency Counter to output terminal.

3. Set Freq. Range to 10k and adjust Freq. Dial to 1.00 kHz (Start Frequency).

8

4. Pull out SWIDTH Control and adjust to max. position ( 100kHz, Stop frequency).

5. Adjust Sweep Rate Control for desired rate and check sweep operating.

1-3-8. VCF IN FUNCTION
SPECIFICATION
Out-put frequency should be changed from minimum frequency to maximum frequency in
each frequency range by changing VCF INPUT Voltage from 0 to 10V DC.

EQUIPMENT
Power supply
BNC CABLE

PROCEDURE

1. Set this product as follows;

- Function ; SINE WAVE ( )

- Frequency Range ; 10K

- Frequency Control ; Max.

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; CENTER

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

2. Set Power Supply to “0V” and connect to “VCF IN” Terminal.

3. Check the output frequency is “1.00kHz ± 0.2kHz”.

4. Increase the output voltage of Power Supply up to +10V and check the output
frequency as following table.

VCF Voltage Output Frequency Tolerance

0 1.000 kHz

2.000 V 20.00 kHz

4.000 V 40.00 kHz

6.000 V 60.00 kHz

8.000 V 80.00 kHz

10.00 V 100.00 kHz

±

0.2kHz

±

4 kHz

±

8 kHz

±

12 kHz

±

16 kHz

±

20 kHz

1-3-9. FREQUENCY COUNTER
SPECIFICATION
Frequency range ; 200mHz to 110MHz
Input sensitivity ; 100mVrms

EQUIPMENT
Signal generator

9

PROCEDURE

1. Set the COUNT to EXT(PUSH IN).

2. Connect the signal generator to EXT COUNT IN terminal.

3. Set the signal generator to 100mVrms, 200mHz and check the reading of 8210.

4. Vary the output frequency from 200mHz to 110MHz and check the 8210 displays
correct frequencies.

5. Push in LPF(Low Pass Filter) and check the LPF is working (-3dB +/-0.2dB point at
approx. 120kHz).
< Check procedure >
a. Apply 120KHz signal with minimum input level into EXT COUNT IN.
b. Push in LPF switch and check gate time(Frequency display) is stopped.
c. Increase input level and check the gate time(Frequency display) is starting to

and check the input level is increased about 3dB(+/-0.2dB) from “minimum input
level”.

2. ADJUSTMENT PROCEDURE

2-1. Preliminary Set-up
Remove top cover. Apply power, and allow at least 30 minutes for warm-up.

2-2. Power supply

a. Check the voltage in each position according to table 2-1.

Table 2-1 Power supply outputs

Check position Supplying Voltage Tolerance Remark

Output Pin of

+ 5 V

U6,15,20
Output Pin of U5 + 15 V
Output Pin of U7 - 15 V

Anode of ZD1 - 5 V

Upper leg of R68 + 21 V

±

0.5V U6,15 : Assembled
at Rear panel

±

0.5V

±

0.5V

±

0.5V

±

2 V

10

2-4. PRE-ADJUSTMENTS
EQUIPMENT
Oscilloscope
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω (if necessary)

PROCEDURE
2-4-1. TRIANGLE WAVE OFFSET

1. Set this product as follows;

- Function ; TRIANGLE WAVE ( )

- ATT ; 20 dB(PUSH IN)

- AMPLITUDE ; MIN.

- FREQUENCY ; 10kHz

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

2. Set the oscilloscope to 0.5V/DIV, 20uS/DIV , DC Coupling and set the vertical
position to horizontal graticule center.

3. Connect the oscilloscope to output terminal.

4. Set “AMPLITUDE” control for 2DIV on CRT and adjust SFR15(OFFSET ADJUSTER) for “0
OFFSET of waveform”(The waveform should be in center. +/- 0.1DIV from horizontal
graticule center).

2-4-2.SQUARE WAVE LEVEL

1. Set this product as follows;

- Function ; “SQUARE WAVE ( )”

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; MAX.

- FREQUENCY ; 10kHz

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

2. Change the function to “SQUARE WAVE”

3. Set the oscilloscope to 5V/DIV, 20uS/DIV

4. Check the output level of Square Wave is more than 17Vpp.

11

2-4-3.SINE WAVE LEVEL Adjust.

1. Set this product as follows;

- Function ; “SINE WAVE ( )

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; MAX.

- FREQUENCY ; 10kHz

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

2. Change the function to “SINE WAVE”

3. Set the oscilloscope to 5V/DIV, 20uS/DIV

4. Adjust SFR10 , SFR13 for displaying “4DIV” on CRT. (SFR10 : + DIV from
horizontal graticule center for up-side of waveform , SFR13 : - DIV from
horizontal graticule center for down-side of waveform.

2-4-4. SINE WAVE DISTORTION ADJUST
EQUIPMENT
Distortion Analyzer
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω (if necessary)
PROCEDURE

1. Set this product as follows;

- Function ; SINE WAVE ( )

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; Max.

- FREQUENCY ; 10kHz

2. Connect Distortion analyzer to Output terminal.

3. Adjust SFR8, SFR11, SFR12 for minimum distortion reading on Distortion analyzer.
(less than 0.5 %)

12

2-4-5. AMPLITUDE CONTROL AND ATTENUATOR CHECK
EQUIPMENT
Oscilloscope
AC Millivoltmeter
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω

PROCEDURE

1. Set this product as follows ;

- Function ; SINE WAVE ( )

- ATT ; 0 dB(PULL OUT))

- AMPLITUDE ; CENTER

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

- SWEEP ; OFF(PUSH IN)

2. Connect the oscilloscope through FEEDTHROUGH TERMINATION 50 Ω
to output terminal.

3. Set Amplitude Control to Min. position and check the output level is lower than
1Vp-p(less 5div in 200mV/div).

4. Set Amplitude Control to Max. position and check the output level is higher than
10Vp-p(higher than 4div in 5V/div).

5. Set Amplitude Control to Min. position and connect AC Millivoltmeter to output
terminal.

6. Set the Range of AC millivoltmeter to 3V range and adjust Amplitude control for
0dB reading on AC millivoltmeter.

7. Push in “20dB ATT switch” and check the reading of AC Millivoltmeter is -20 dB.

8. Check the amplitude of TRIANGLE & SQUARE WAVE same as paragraph 3 to 7.

2-5. FREQUENCY RANGE ADJUSTMENT
EQUIPMENT
Frequency Counter
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω

PROCEDURE

1. Set this product as follows;

- Function ; TRIANGLE WAVE ( )

- ATT ; 20 dB(PULL OUT)

- AMPLITUDE ; CENTER

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

13

- SYM ; OFF(PUSH IN)

- SWEEP ; OFF(PUSH IN)

2. Connect the Frequency Counter to Output Terminal.

2. Set Frequency Range to “1M” and Frequency Control(Dial) to MAX. Position.

3. Adjust SFR1 for 10.500 MHz frequency reading on counter.

4. Change Frequency Range to “100k” and adjust SFR2 for 1.0500 MHz frequency
reading on counter.

5. Change Frequency Range to “10k” and adjust SFR3 for 105.00 kHz frequency
reading on counter.

6. Change Frequency Range to “1k” and adjust SFR4 for 10.50 kHz frequency
reading on counter.

7. Change Frequency Range to “100” and adjust SFR5 for 1.050 kHz frequency

reading on counter.

8. Change the frequency range to 10 and 1, and check the frequency reading
in each range. (10 : 105.00 Hz , 1 : 10.500Hz)

9. After adjustment, check the frequency Control(Dial) at MIN. and MAX.
as following table.

Range Frequency Control

1M MIN.

100k MIN.

10k MIN.

1k MIN.

100 MIN.

10 MIN.

1 MIN.

2-6. SYMMETRY ADJUST

8210 setting Tolerance

Less than 100.0 kHz

MAX.

Higher than 10.5 MHz

Less than 10.0 kHz

MAX.

Higher than 1.05 MHz

Less than 1.0 kHz

MAX.

Higher than 100.5 kHz

Less than 100 Hz

MAX.

Higher than 10.5 kHz

Less than 10.0 Hz

MAX.

Higher than 1.0 kHz

Less than 1 Hz

MAX.

Higher than 100 Hz

Less than 100 mHz

MAX.

Higher than 10 Hz

EQUIPMENT
Oscilloscope
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω (if necessary)

PROCEDURE

1. Set this product as follows;

- Function ; SQUARE ( )

14

- ATT ; 0 dB(PULL OUT)

- AMPLITUDE ; CENTER

- COUNT ; INT(PULL OUT)

- DC OFFSET ; OFF(PUSH IN)

- SYM ; OFF(PUSH IN)

- SWEEP ; OFF(PUSH IN)

2. Connect the oscilloscope to output terminal.

3. Set the output frequency to 100kHz.

4. Pull out SYM Control and adjust to Min. position. And adjust SFR6 the

symmetry(duty ratio) is “lower than 1:10”.

5. Adjust SYM Control to Max. position and adjust SFR7 the symmetry(duty ratio)

is”higher than 10:1”.

2-7. FREQUENCY COUNTER ADJUST

EQUIPMENT
10MHz Standard Signal Source
Signal Generator up to 110MHz
BNC CABLE
FEEDTHROUGH TERMINATION 50 Ω (if necessary)

PROCEDURE

1. Set this product as follows;

- COUNT ; EXT(PUSH IN)

2. Connect 10MHz Standard Signal to the EXT COUNT IN terminal and adjust TC1 for

10.0000 MHz reading on Counter Display.

3. Set Signal generator to 110MHz, 100mVrms and connect the EXT COUNT IN terminal.

4. Adjust SFR16 (Shield Box IN) for 110.0000 MHz reading on Counter Display.

Reduce the output level of Signal Generator Slowly and adjust SFR16 for Minimum
input sensitivity(as possible as less than 100mVrms).

5. Change the out frequency of Signal Generator from 110MHz to 200mHz and check
the minimum input voltage is less than 100mVrms.

6. Push in LPF(Low Pass Filter) and check the LPF is working (-3dB +/-0.2dB point
at approx. 120kHz).

< Check procedure >
a. Apply 120KHz signal with minimum input level into EXT COUNT IN.
b. Push in LPF switch and check gate time(Frequency display) is stopped.
c. Increase input level and check the gate time(Frequency display) is starting to

and check the input level is increased about 3dB(+/-0.2dB) from “minimum input
level”.

15

3. Troubleshooting Procedure

3-1. Troubleshooting techniques

3-1-1. Check the function selector and switch setting. Incorrect switch settings can

give a false indication of instrument malfunction. If there is any question
about the correct function or operation, refer to OPERATOR'S MANUAL.

3-1-2. Check associated equipments before proceeding, ensure that any equipments used

with this product is operating correctly and verify that out and input signals
are properly connected and that the interconnecting cables are not defective.

3-1-3. Visual Check

Look for broken terminals, damaged components, mounting status of components,
damaged circuit boards, or other clues to the cause of a malfunction.

3-2. Troubleshooting procedure

3-2-1. NO Display

1. Check the “FUSE” and if it is broken, change to new one with same rating.

2. Check the output voltage of power transformer.

-. 17 to 18 Vac between pin 1 and 2 of CN14, and between pin 2 and 3 of CN14

on main board.

-. 8 to 10 Vac between pin 1 and 2 of CN4,CN24, and between pin 2 and 3 of

CN4,CN24 on main board.

3. Check the DC Power Voltage.

-. +5VDC at U6 and U15 output(U6,15 Assembled at rear panel)

4. Check the frequency at pin 19 of U12. It should be “10MHz”.

5. Check the connector cable from CN12’,CN13’(main board) to display board.

3-2-2. Triangle Wave Out-put

1. Check the Function switch operation and select Triangle Wave.

2. Check the DC Power Voltage for Generator Circuit.

-. +15VDC at U5 output

-. +5VDC at U6,U15,U20 output ( U6,15 :assembled at rear panel)

-. -5VDC at Anode of ZD1.

-. -15VDC at U7 output

-. +21VDC at upper leg of R68

3. Check the waveform at Q7 Emitter. The Triangle Wave should be appeared.

4. If not, check the operation of Amplifier and Triangle oscillator (U1 A/B/D, U2 A/B,

Q1,Q2,Q3,Q4,Q5,Q6,D1,D2,D3,D5,Q7).

16

5. Check the Range Selector Switch operation and Frequency Control Volume and Cable

connection from VR1 to CN2(Main Board).

6. Check the “Amplitude VR4” and Cable connection from VR to CN5 on main board.

7. Check the waveform at R46. The Triangle Wave should be appeared.

8. If not, check the operation of Differential Amplifier(Q12,Q13,Q14,Q15,Q16).

9. Check the Attenuator switch(20 dB) and cable connection from CN7 to Output terminal.

3-2-3. Square Wave Out-put

1. Check the Function switch operation and select Square Wave.

2. Check the waveform at D1(of DD1) Cathode. The Triangle Wave should be appeared.

3. Check the waveform at D2(of DD1) Cathode. The Square Wave should be appeared.

4. If not, check the step 3-2-2. 4 and 5.

5. Check the waveform at 9pin of U3. The Square Wave should be appeared.

6. If not, check the operation of U3.

6. Check the waveform at R45. The Square Wave should be appeared.

7. If not, check the step 3-2-2. 8 and 9.

3-2-4. Sine Wave Out-put

1. Check the Function switch operation and select Sine Wave.

2. Check the waveform at Q7 Emitter. The Triangle Wave should be appeared.

3. If not, check the step 3-2-2. 4 and 5.

4. Check the waveform at Q11 Collector. The Sine Wave should be appeared.

5. If not, check the operation of Sine Shaper(Q8,Q9,Q10,Q11).

6. Check the waveform at R45. The Sine Wave should be appeared.

7. If not, check the step 3-2-2. 8 and 9.

3-2-5. TTL Output

1. Check the connection of cable for TTL Output terminal and Control Volume.

2. Check the waveform at Pin 9 of U3. The Square Wave should be appeared.

3. If not, check the step 3-2-3.

4. Check the waveform at pin 6 of U4. The TTL Level Square Wave should be appeared.

5. If not, check the operation of U4.

3-2-6. Sweep Operation(Width and Rate)

1. Check the cable connection(CN8,CN9) for Width and Rate Control Volume.

2. Vary the Width volumeand check the level of Pulse at pin 7 of U2 is varied.

3. Vary the Rate volume and check the period of Pulse at pin 14 of U2 is varied.

4. If not, check the operation of U2 C/D , D9 and Q17.

17

3-2-7. Frequency Range and Frequency Dial

1. Check the cable connection from CN2(Main Board) to Frequency Control Volume.

2. Check the operation of Range selector switch(Key Switch operation).

3-2-8. Attenuator(20dB)

1. Check the operation of each Attenuator switch.

2. If not working, check the R146,147,148

3-2-9. Frequency Counter(INT/EXT)

1. Check the INT/EXT selector switch operation and set to INT.

2. Check the output frequency at Output terminal by using Frequency counter and check

the frequency at R83 is same with output frequency.

3. Check the frequency of reference signal at pin18 and 19 of U12.

It should be “10.000MHz”.

4. If not, check Reference Oscillator(X1,T1,C54,).

5. Check the frequency at pin3 of U9 and pin 7of U18.

It should be same as output frequency.

6. If not, check the operation of Input Amplifier and Devider(Q18,Q19,U8,Q20,Q21,U18).

7. Check the cable connection between CN12(main board) and CN13(Display Board).

Check the operation of Counter Circuit, Micro-processor(U12), Driver(U4,5),

8.

Scanner(U10,11)

9.

Check the operation of Display Controller(U13,U14,Q22-28) on Display Board.

10. Check LPF function as follows;

a. Check the status of LPF S/W(push in)
b. Check the voltage at the left leg of R108. It should be around +5V.
c. Check the voltage at the anode of D16. It should be around 1.4-1.5V.
d. Check the voltage at cathode of D16. It should be around on 0.7-0.8V.

18

4. PARTS LIST

4-1.. Main PCB Parts List

Part Name Specification q"ty Referance.
CER.CAPACITOR 0.01uF50V(10nF) 2.00C100,101
CER.CAPACITOR.SMD 3pF 1.00C72
CER.CAPACITOR.SMD 15pF50V 1.00C9
CER.CAPACITOR.SMD 22pF50V 1.00C87
CER.CAPACITOR.SMD 30pF50V 2.00C54,C84
CER.CAPACITOR.SMD 33pF50V 1.00C82
CER.CAPACITOR.SMD 50pF50V 2.00C01,C02
CER.CAPACITOR.SMD 0.01uF50V(10nF) 12.00C2,8,15,29,31,33,34,39,45,47,90,91
CER.CAPACITOR.SMD 0.1uF50V(100nF) 25.00C17-19,49-53,56,59,61,67-71,74-76,78,80,81,94,202
CER.CAPACITOR.SMD 130pF50V 3.00C10,38,41
CER.CAPACITOR.SMD 150pF50V 2.00C13,66
CER.CAPACITOR.SMD 1.5pF50V 1.00C73
CER.CAPACITOR.SMD 470pF50V 1.00C44
CER.CAPACITOR.SMD 4700pF50V(4.7nF) 2.00 C85,86
TRIMMER CAPACITOR CTC05F500,50pF/2READ 1.00T1
MICA CAPACITOR 33pF/63V 1.00C3
MICA CAPACITOR 680pF/63V 1.00C4
M/F.CAPACITOR 0.47uF250V 1.00 C37
M/F CAPACITOR(BOX) 0.0068uF/63V(6.8nF) 1.00C5
M/F CAPACITOR(BOX) 0.068uF/63V(68nF) 1.00C6
M/F CAPACITOR(BOX) 0.68uF63V(680nF) 1.00C7
MYLER CAPACITOR 0.22uF100V(220nF) 1.00C36
ELEC.CAPACITOR 10uF35V 1.00C55
ELEC.CAPACITOR 22uF16V 10.00C1,12,14,22,23,25,28,30,32,35
ELEC.CAPACITOR 47uF35V 6.00C27,40,42,43,46,48
ELEC.CAPACITOR 100uF25V 2.00C77,79
ELEC.CAPACITOR 1000uF35V 2.00 C21,24
ELEC.CAPACITOR 220uF35V 1.00C20
ELEC.CAPACITOR 2200uF35V 1.00 C58
ELEC.CAPACITOR 470uF25V 3.00C60,200,201
SWITCHING DIODE.SMD 1N4148 13.00D3-11,14,15,16,17
SWITCHING DIODE.SMD HSMS-2825-TR1 1.00D1-1

19

Part Name Specification q"ty Referance.
C/F. RESISTOR.SMD 22J, 1/8W 3.0028,47,102
C/F. RESISTOR.SMD 220J, 1/8W 3.004,29,118
C/F. RESISTOR.SMD 2.2KJ, 1/8W 4.009,10,90,91
C/F. RESISTOR.SMD 22KJ, 1/8W 1.0089
C/F. RESISTOR.SMD 240J, 1/8W 1.00147
C/F. RESISTOR.SMD 270J, 1/8W 1.0041
C/F. RESISTOR.SMD 2.7KJ, 1/8W 1.0011
C/F. RESISTOR.SMD 300J, 1/8W 1.0039
C/F. RESISTOR.SMD 33J, 1/8W 3.0027,72,170
C/F. RESISTOR.SMD 330J, 1/8W 4.0034,95,98,99
C/F. RESISTOR.SMD 33KJ, 1/8W 1.0040
C/F. RESISTOR.SMD 39KJ, 1/8W 1.0071
C/F. RESISTOR.SMD 470J, 1/8W 7.00 93,94,96,97,100,101,108
C/F. RESISTOR.SMD 4.7KJ, 1/8W 1.0030
C/F. RESISTOR.SMD 51J, 1/8W 1.00114
C/F. RESISTOR.SMD 510J, 1/8W 4.00 86,87,R01,R02
C/F. RESISTOR.SMD 5.1KJ, 1/8W 3.0074,75,76
C/F. RESISTOR.SMD 62J, 1/8W 2.00146,148
C/F. RESISTOR.SMD 7.5KJ, 1/8W 2.007,73
C/F. RESISTOR.SMD 8.2KJ, 1/8W 1.00104
SEMI-FIXED RESISTOR VZ067TH1, 100B 1.00SFR11
SEMI-FIXED RESISTOR VZ067TH1, 1KB 2.00SFR10,13
SEMI-FIXED RESISTOR VZ067TH1, 10KB 8.00 SFR1,2,3,4,5,6,7,16
SEMI-FIXED RESISTOR VZ067TH1, 100KB 2.00SFR12,15
SEMI-FIXED RESISTOR VZ067TH1, 2KB 1.00SFR8
M/F. RESISTOR.SMD 1KF, 1/8W 4.0021,35,37,38
M/F. RESISTOR.SMD 100KF, 1/8W 1.00117
M/F. RESISTOR.SMD 11KF, 1/8W 2.0023,25
M/F. RESISTOR.SMD 120F, 1/8W 1.00 136
M/F. RESISTOR.SMD 1.21KF, 1/8W 2.0012,16 (1.2K,F)
M/F. RESISTOR.SMD 121KF,1/8W 2.00R13,17
M/F. RESISTOR.SMD 1.5KF, 1/8W 1.00133
M/F. RESISTOR.SMD 21.5F, 1/8W 2.00 137,139 (22,F)
M/F. RESISTOR,SMD 2.2KF, 1/8W 1.00 135
M/F. RESISTOR.SMD 249F, 1/8W 1.00 R115 (243,F)

20

Part Name Specification q"ty Referance.
M/F. RESISTOR.SMD 24.9KF, 1/8W 1.00129 (24.3K,F)
M/F. RESISTOR.SMD 3.32KF, 1/8W 1.00119 (3.4K,F)
M/F. RESISTOR.SMD 42.2F, 1/8W 1.00 120
M/F. RESISTOR.SMD 430F, 1/8W 2.00 22,24
M/F. RESISTOR.SMD 4.99KF, 1/8W 1.00132
M/F. RESISTOR.SMD 56.2F, 1/8W 1.00 138 (56,F)
M/F. RESISTOR.SMD 576F, 1/8W 1.00 121
M/F. RESISTOR.SMD 825 1/8W F 2.00 127,130
M/F. RESISTOR 900F, 1/4W 1.0032
OXIDE FILM RESISTOR 560J, 1W 1.0066
KEY SWITCH SPUN90X1CO21 1.00
KEY SWITCH SPUN40X1C041 1.00
POWER SWITCH JPP2295MPACS72 1.00P-S/W1
I.C.(TI) SN75107AN 1.00U3
I.C.SMD BA10324AF 2.00U1,2 Rohm
I.C.(SAM.MOTO.NS.) MC7805 1.00U20
I.C.(SAM.MOTO) MC7815 1.00U5
I.C.(SAM.MOTO) MC7915 1.00U7
I.C.(MOTO.) MC10116 1.00 U8
I.C.(HAR.RCA) CA3096AE 1.00U17
I.C.SMD(SIG) SN7400/SN74S00 1.00U4
I.C(NS) 74F191N 1.00U18
I.C.SMD(NS.HIT.PHI.) SN74HC393 2.00 U10,11
I.C.SMD(NS.HIT.SGS.) SN74HC138 1.00U14
I.C.(TOSHIBA) TD62783AP 1.00 U13
I.C.(AMD) GAL16V8 1.00U9
WIRE ASS'Y(1365#30) IN PUT CABLE,250mm 1.00
CRYSTAL 10.0000MHz(HC-49/U) 1.00 10M 20PPM .
MAIN PCB 8210-M12 1.00
SHIELD CASE Zn-pl 0.3t 104x40x18 1.00
NUT M3, NI-PL 1.00U15 Ass'y
SCREW, MACHINE M3x8BH, NI-PL 1.00U15 Ass'y
SCREW, TAPPING T3x6BH,ZN-PL 3.00 U37,15,20
SPRING, COIL
HEAT SINK
HEAT SINK
HEAT SINK

6x2x7(SHIELD 용)
TR 용,내경 8.3,외경 16
78SERIES 용(ㄷ자모양)
8210 ㄷ자 17x9x19

0.00MAIN PCB GND

2.00Q16,29 Ass'y

2.00U7,15 Assy'

1.00U20 Ass'y

21

4-2.. Display PCB Parts List

Part Name Specification Q'ty Referance

WAFER 8pin,YW02508,연호 2.00 CN12,13

FND(hp) HDSP-H513#001 1.00 FND(SINGLE )

FND(hp) HDSP-K513#001 3.00 FND1,2,3

LED BL-R2130A-T(5x5X10) 5.00 LED 1-5

DISPLAY PCB(80SER.) 8210-DIS-01 1.00

4-3.. VR PCB Parts List

Part Name Specification Q'ty Referance

WAFER 3pin,YW02503,연호 5.00 CN8(WIDTH),CN9(RATE),CN2(FREQ),CN5(AMP),CN6(OFFSET)

WAFER 4pin,YW02504,연호 1.00 CN3(SYM)

VARIABLE RESISTOR V16L4(7x5)S15KCB10K 1.00 VR5(WIDTH),

VARIABLE RESISTOR V16L4(7x5)S15KCB5K 1.00 VR4(OFFSET)

VARIABLE RESISTOR V16L4(7x5)S15KCB50K 1.00 VR2(SYM)

VARIABLE RESISTOR V16L4N15KCB10K 2.00 VR6(RATE),VR1(FREQ),

VARIABLE RESISTOR V16L4N15KCB500 1.00 VR3(AMP)

VR PCB(80SER.) 8210-VR-02 1.00

4-4. Front Panel Assembly Parts.

Part Name Specification Q'ty Referance

BNC CONNECTOR BNC-RB-4CUTTING 4.00 OUTPUT,TTL SYNC, VCF, EXT COUNTER IN

WIRE ASS'Y( ) 2pin 150mm 1.00 VCF

WIRE ASS'Y( ) 2pin 220mm 2.00 TTL.OUTPUT

BRACKET, VR PCB BN-LGP,160x25x30 1.00

BRACKET, BNC BN(80SER.)-AG/FG 1.00

FRONT PANEL, ABS BN(80SER-난연)-12965 1.00

KNOB, VR, ABS Pi10x13mm,DARK-GRAY 6.00

PLATE, FRONT, PC 8210DAG 1.00

ACRYLE FILTER 8210-DAG 1.00

NUT(VR)

NUT(BNC,F)

NUT M3, NI-PL 2.00 BNC BRACKET

SCREW, MACHINE M3x4BH,NI-PL 2.00 BNC BRACKET

SCREW, TAPPING T3x8BH, ZN-PL 5.00 VR PCB

WASHER, PLAIN 내경:3,외경:12/NI-PL 2.00 EXT COUNT IN BNC

WASHER,PLAIN(VR) 7.2x12x0.2t/NI-PL 6.00VR

WASHER,LATCH(BNC) 9.5x13x0.5t/NI-PL 4.00 BNC

WASHER,PLAIN(BNC S.) 10x13x0.3t/NI-PL 4.00 BNC

6.00 VR

4.00 BNC BRACKET

DISPLAY PCB ASS'Y FG-8210/DAGA 1.00

VR PCB ASS'Y FG-8210/DAGA 1.00

22

4-5. Rear Panel Assembly Parts.

Part Name Specification Q'ty Referance
FUSE(UL,VDE) 50F,250V200mA(20mm) 1.00FUSE HOLDER IN
FUSE HOLDER R3-11,BN 1.00 REAR PANEL ASS'Y
EMI GASKET 71TS-FK10-R10-170-00 1.00REAR PANEL ASS'Y
MOTOR FAN DC5V,0.5W (40x40) 1.00REAR PANEL ASS'Y
GND CONNECTOR
AC INLET(SAM IL) NFU-101,NOISE FILTER 1.00REAR PANEL ASS'Y
POWER TRANS FG-8210,8220 1.00REAR PANEL ASS'Y
I.C.(SAM.MOTO.NS.) MC7805 2.00REAR PANEL ASS'Y (U5,U15)
HEAT TUBE Pi5 x 15 mm 3.00 AC INLET,FUSE HOLDER
HEAT TUBE Pi 12 x 60 mm 1.00 FUSE HOLDER
WIRE ASS'Y(1015#22) GND WIRE,180mm,LUG 3.00REAR PANEL ASS'Y
WIRE ASS'Y(1015#22) DIW,120mm,BLACK 1.00 AC IN-FUSE
WIRE ASS'Y(1015#22) 3pin 2Wire ,220mm 1.00

BRACKET, POWER
TRANS BN-DAG, 27x10.5,2T 2.00TRANS

REAR PANEL PRESS BN-DAG,FG-8210 1.00
NUT(GND TERMINAL) INCH 2.00 GND CONNECTOR
NUT M3, NI-PL 8.00TRANS,REGULATOR, FAN
SCREW, MACHINE

M3x10BH,흑착색

1.00REAR PANEL ASS'Y

2.00NOISE FILTER (AC INLET )
SCREW,MACHINE
SCREW, MACHINE M3x8BH-W, NI-PL 2.00TRANS
WASHER, PLAIN
WASHER, SPRING
WASHER, LATCH 4x6.5x0.3t 1.00 GND CONNECTOR

M3x16BH 흑착색

내경:3,외경:10/NI-PL
내경:3,외경:5, ZN-PL

2.00FAN

4.00TRANS,AC INLET

2.00TRANS

23

4-6. Others.

Part Name Specification Q'ty Referance

I.C.(ATMEL) AT89C52 1.00 U12

CABLE TIE 100mm, WHITE 10.00

WIRE ASS'Y(#24) 3-3pin 150mm 6.00

WIRE ASS'Y(#24) 4-4pin 150mm 1.00

WIRE ASS'Y( ) 8-8pin 220mm 2.00

WIRE ASS'Y( ) 3-3pin 150mm 1.00

SHIELD CASE 8210 TOP 0.6t 210x202(156)x35 1.00 MOUNT POLE- TOP

SHIELD CASE 8K-BOT Znpl 0.6t 210x202x35 1.00MONUT POLE-BOTTOM

BOTTOM CASE, ABS BN(80SER,난연)-12965 1.00

TOP CASE, ABS BN(80SER.난연)-12965 1.00

HANDLE, ABS BN(80SER.난연)-12965 1.00

RUBBER FOOT BN-DAG,37x8.5,대 2.00 BOTTOM CASE

RUBBER FOOT BN-DAG,32x8.5,소 2.00 TOP CASE

EMI GASKET 71TS-FK10-R10-170-00 1.00 BOTTOM SHIELD CASE ASS'Y

SHIELD PLATE BN-DAG, 248X163 0.00 SHIELD CASE BOTTOM

SPONGE PAD 20x40,5T,한쪽 테이프 6.00 MAIN PCB AC LINE PART

KNOB, POWER, ABS BN-DAG(80SER.) 1.00 POWER STICK

KNOB, PUSH S/W, ABS BN(80SER.)-12965 13.00 KEY S/W

SCREW, MACHINE M3x6BH,H5, NI-PL 0.00SHIELD TOP + MOUNT POLE

SCREW, MACHINE M4x45BH, ZN-PL 4.00 TOP+BOTTOM CASE

SCREW, TAPPING T3x8BH, H6, NI-PL 3.00 PCB -BOTTOM CASE

MOUNTING POLE Pi3x50,육각 8210MAIN 1.00 MAIN PCB-SHIELD CASE

WASHER, SPRING 내경:3,외경:5, ZN-PL 1.00 SHIELD TOP + MOUNT POLE

EMI AIR VENT FILTER SUI40-24-125-45-13 2.00 TOP,BOTTOM SHIELD

FRONT PANEL ASS'Y FG-8210/DAGA 1.00

REAR PANEL ASS'Y FG-8210/DAGA 1.00

MAIN PCB ASS'Y FG-8210/DAGA 1.00

24

4-7. Packing

Part Name Specification Q'ty Referance

FUSE(UL,VDE) 50F,250V200mA(20mm) 1.00 SPARE FUSE.

POWER CORD(230V) KKP-30,SVT3/18A"VDE" 1.00 "VDE"

CABLE ASS'Y( ) BNC TO CLIP( ) 1.00

STYROFOAM BOX BENCH, 300x150x65mm 2.00

SILICA GEL 3g 1.00

STICKER, S/N, 230V BN(80SER.),15W200mA 1.00 15w ,230V/200mA F

MANUAL(8210) FG8210, DAG 영문 1.00

INNER BOX (8000SER.) DAG-BN,340x310x165 1.00

CARTON BOX(무인쇄) BN,645x355x365 0.25 4CTN.(IN BOX -340x310x165)

VINYLE BAG 70x100mm,Zipper Type 1.00 SPARE FUSE.

VINYLE BAG 265x400mm 1.00 PRODUCT.

5. CIRCUIT DIAGRAM

- Refer to Attached File.

25

5

A

R83

COUNTER

D D

06-R150#1

+5VD

BNC4

EXT COUNT IN

1

2

C C

10K

SW5

EXT/INT SW

SW6
L.P.F

C37

474/250V

R85
100K

C38
130P

R108
470

C40

47/16V

1N4148

D10

C90
103

+

C39
103

Q18

2N5486

3

D11
1N4148

D16
1N4148

B B

1

2

R86
510

D17
1N4148

4

R87
510

Q19
2N3906

R88
150

C41
130P

C91
103

SFR16
10K

3

C44
470P(C/C)

U8B

C9

47/16V

+

R89
22K

2

1 3

C43

47/16V

R90

2.2K

+

MC10116

10

9

R91

2.2K

1/16

8

R92
150

7

6

R93
470

R94
470

4
5

R95
330

U8A
MC10116

11

2

C48

+

47/16V

R99
330

U8C

R98
330

C46
47/16

MC10116

C45
103

+5VD

C12
103

15

14

R100
470

15

1

10

9

14

4
5

11

06-U9#3
06-U9#5
06-U9#4

13
12

2

3

R96

R97

470

470

+

C47
103

A
B
C
D

CLK
G
D/U
LOAD

U18
74LS191

R101
470

RCO

MX/MN

1

+5V(A)

Q20

R102

2N3906

22

Q21
2N3906

R103
120

3

QA

2

QB

6

QC

7

QD

13

12

C01

R01
510

Title

8210 - 05

Model

COUNTER PREAMP CIRCUIT

Size
Sheet

5 of 6

Date 2002/04/13

5

4

3

2

Rev

A3

Scale

Drawing Design Checked Approved

02

2:1

DAGATRON

1

50P

R02
510

C02
50P

A

5

A

D D

+5V(D)

4

3

/Sg

/Sa

/Sb

12345678910

FND1

SEGMENT

8.8.

2

/Sa

mHZ

/Sb

HZ

/Sc

/F4

/Sf

/Sa

/Sb

/F3

/F6

/Sf

/Sg

/Sa

/Sb

/Sf

/Sa

/F5

12345678910

FND2

SEGMENT

8.8.

/Sb

/F8

/Sf

/Sg

/Sa

/Sb

/Sf

/Sa

/F7

12345678910

FND3

SEGMENT

8.8.

/Sb

/Sf

/Sg

/Sa

123456

SEGMENT

8.

/Sb

FND4

/F9

KHZ

/Sd

MHZ

/Se

G.T

1

D1
D2
D3
D4
D5

18

/Sd

/Se /Sf

/Sa
/Sb
/Sc
/Sd
/Se
/Sf
/Sg
/Sh

U14
74LS138

1

A

2

B

3

C

6

G1

4

G2A

5

G2B

1
2
3
4
5
6
7
8 11

Y1

10MHZ

C57
56P

C53
104

U13
TB62783

I0
I1
I2
I3
I4
I5
I6
I7 O8

J3

J3'
CN3'

CN3

1

18

O1
O2
O3
O4
O5
O6
O7

1

2

17

2

3

16

3

4

15

4

5

14

5

6

13

6

7

12

7

8

8

+5V(D) +5V(D)

+

T1

20P

R104

8.2K

C55
10/16V

1
2
3
4
5
6
7
8

C49
104

U9

C C

B B

13

12

13

12

PAL16R4

12

F0

13

F1

14

F2

15

F3

16

F4

17

F5

18

F6

19

F7

U10A
74LS393

1

A

QA
QB
QC

2

CLR

QD

U10B
74LS393

A

QA
QB
QC

CLR

QD

U11A
74LS393

1

A

QA
QB
QC

2

CLR

QD

U11B
74LS393

A

QA
QB
QC

CLR

QD

1

I0

2

I1

3

I2

4

I3

5

I4

6

I5

7

I6

8

I7

9

I8

11

I9

3
4
5
6

11
10
9
8

3
4
5
6

11
10
9
8

16
17
13

21
22
23
24
25
26
27
15

28
14

39
38
37
36
35
34
33
32

C50
104

05-U18#14
05-U18#7
05-U18#6

U12
89C52

WR
RD
INT1

P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
T1

P2.7
T0

P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7

C51
104

29

PSEN

ALE/P

30

P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7

RXD

TXD

INT0

EA/VP

RESET

C52
104

X1

X2

C56
104

/a

1

/b

2

/c

3

/d

4

/e

5

/f

6

/g

7

/h

8
10

11
12

31
9
19

18

C64
30P

11121314151617

18

/Sd

/Se

/Sh

/Sc

/Sg

/Sd

/Se

/Sh

/Sc

/CM0

15

Y0

/CM1

14

Y1

/CM2

13

Y2

/CM3

12

Y3

/CM4

11

Y4

/CM5

10

Y5

/CM6

9

Y6

/CM7

7

Y7

11121314151617

/Sc

/Sg

/Sd

/Se

/Sh

/Sc

Q22
A1015

R105
10

/CM0

18

/Sd

/Se

/Sh

J13
CN13

J13'
CN13'

/CO0

/CO1

Q23
A1015

R106
10

/CM1

05-SW5#5

/Sc

Q24
A1015

/CM2

/Sh

R107
10

/Se

11121314151617

/Sc

/Sd

/Sg

/F3

/F4

/F5

8

1234567

1234567

/CO0

/CO1

/CO2

/CO2

Q25
A1015

/CM3

Title
Model
Size
Sheet
Date 2002/04/13

789

10

/Sh

/Sc

/Sd

/Se

/Sh

/F6

/F7

/F8

/F9

1234567

8

8

/CO3

/CO4

/CO5

/CO6

/CO7

/CO3

Q26
A1015

R108

R109

10

10

/CM4

R150

1K

8210 - 06

CPU CONTROL CIRCLE

A3

6 of 6

/Se

Rev
Scale

/CO4

R149

10

Q27
A1015

R110
10

/CM5

+5V(D)

Q30

C1815

02

2:1

/CO5

/CO6

Q32
A1015

/CM7

R112
10

/CO7

Q28
A1015

R111
10

/CM6

Drawing Design Checked Approved

DAGATRON

A

5

4

3

2

1

5

A

SW1
SWEEP WIDTH

VR5

Sweep Width

D D

Sweep Rate

10KB

VR6
10KB

2

1 3

2

1 3

3

1

8

-15V

J9
CN9

1
2
3

C C

BNC1
VCF IN

1

2

VR1

Frequency

B B

10KB

2

1 3

J1
CN1

1
2

J2
CN2

1
2
3

R114

51

+15V

R6
1K

R73

7.5K

R72
33

R300
470

J8
CN8

R71
39K

4

1
2
3

C304
104

5

+

6

-

D8
1N4148

R70
1K

C36

0.22uF(MYLER)

-

9

+

10

U2C
GL324

R1
10K

7

U1B
GL324

SFR1
10KB

SFR2
10KB

SFR3
10KB

SFR4
10KB

SFR5
10KB

+15V

R75

5.1K

R74

5.1K

8

R2
1K

R3
1K

2

13

2

13

2

13

2

13

2

13

R7

7.5K

C29

0.01(C/C)

C2

0.22uF

-

13

+

12

R4
220

-

2

+

3

U1A
GL324

+21V

10

+

9

-

-5V

U2D
GL324

1

411

U1C
GL324

3

C31

0.01(C/C)

R76

5.1K

14

D9

1N4148

Q1
2N3906

C28

+

22/25V

8

22/16

+

C37

Q17

2N3906

R77
10K

C33

0.01(C/C)

R9

2.2K

R8
1K

VR2

2

50KB

1 3

3
8

SW2
Symm

R10

2.2K

J3
CN3

4
3
2
1

1

5
6

SFR6
10KB

+15V

411

+

-

-15V

2

C30

+

22/16V

7

U2B
GL324

+

C32

22/16V

2

1 3

SFR7
10KB

1 3

02-U30B#3

Title

8210 - 01

Model

FREQ/VCF IN CIRCUIT

Size

A3

Sheet

1 of 6

Date 2002/3/30

1

+15V

13

2

SFR8

2.2KB

R11

2.7K

02-U30A#12

Q2
2N3904

Rev
Scale

-15V

Drawing Design Checked Approved

02

2:1

2

DAGATRON

A

5

4

3

2

1

5

A

4

3

2

1

02-R19#1
02-U4A#1
02-R32#1

R125
1K

R129

24.9KF

R126
100

R127
825F

R128
150

R131
100

C67

0.1(MON)

C68

0.1(MON)

C69

0.1(MON)

R130
825F

R132

4.99KF

C70

0.1(MON)

Q14
2N3563

Q12
2N5771

C71

0.1(MON)

R134

1.5KF

C72

1.5pF

C74

0.1(MON)

R137

21.5F

R138

56.2F

C75

0.1(MON)

R139

21.5F

Q15
2N3906

D6

1N4148

R135
10(1/2W)

D7
1N4148

Q13
2N3904

R136
144F

R136

2.2KF

C73

1.5pF

R140

10(1/2W)

C78

0.1(MON)

Q16
2N2219

R141
10(1/2W)

R142
10(1/2W)

Q29
2N2905

C80

0.1(MON)

10(1/2W)

D D

C C

R33
2K

R34
330

B B

C35

22/16V

C87
22P

R69
10

R35
1KF

+5V

C34

0.01

+

SFR10
1KB

Q8
C1815

SFR11
100B

2

Q9

C3198

2

R36
1K

SW1
SINE

13

R37
1KF

Q10
C3198

R41
270

R40
33K

13

R38
1KF

SW2

TRIANGLE

2

SFR12
100KB

R46
2K

R117
100KF

2

R118

SFR15

220

100K

1 3

SW3
SQUARE

R119

3.32KF
R120

R121

42.2F

576

C17

0.1(MON)

J5
CN5

3
2
1

SW4

DC OFFSET

1 2

R42
220

R116
10K

13

Q11
C3198

R42
1K

1 3

R43
1K

2

SFR13
1KB

2

1 3
VR3

AMP 500B

2

1 3

VR4
5K

R47
22

1

Q1B

2

Q1E

3

Q1C

4

Q2E

5

Q2B

6

Q2C

7

Q3E

8

Q3B

C66
150P

R115
249

R160

J6
CN6

3
2
1

R161

U17

CA3096

+15V

1K

1K

0.1(MON)

SUB
Q5C

Q5B
Q5E

Q4C
Q4B
Q4E

Q3C

C19

16
15

14
13

12
11
10

9

0.1(MON)

C18

R124
1K

R122

1.1K

R123

1.21K

R74

C76

0.1(MON)

C77

+

100/25V

100/25V

+

C79

+15V

D5

1N4148

D14

1N4148

R146
62

R144
100(1/2W)

R145
100(1/2W)

C81

0.1(MON)

R147
240

6 1
5
4

SW3
ATT

2
3

C82
100P

R148
62

OUTPUT

BNC3

1

1 2

2

RG58

Rev
Scale

-15V

Drawing Design Checked Approved

02

2:1

DAGATRON

1

A

C14
22/10V

R44
10

+

-5V

5

C15

0.01uF(CER)
Title

8210 - 03

Model

AMPLFIER CIRCUIT

Size

A3

Sheet

3 of 6

Date 2002/04/13

4

3

2

5

A

D D

C C

F1

NOISE FILTER

B B

F2
FUSE

1
3
2

J15'
CN15'

1
2
3

J15
CN15

1
2
3

SW8

POWER S/W

1 3
2 4

C306
104/1KV

C307
104/1KV

ST1

SELECT

4

J14'
CN14'

TRANSFORMER POWER

J16

J16'

CN16

CN16'

1
2
3

T2

11

1
2
3

1
2
3

4
5
6

7
8
910

3

DB1
J14
CN14

1

1

2

2

3

3

J4

J4'

CN4

CN4'

1

1

2

2

3

3

J5'

J5

CN5'

CN5

1

1

2

2

3

3

1

DB06M

-+

2

R66
560/1W

ZD1

5.1V

3

D12
1N4003

D13
1N4003

D20
1N4003

D22
1N4003

C59
104

4

C202
104

1 3

VIN VOUT

C21

+

1000/35V

2 3

VIN VOUT

+

C24
1000/35V

C58

+

2200/16V

+

2

R68

10/0.5W

U5
7815

GND

2

U7
7915

GND

1

U15
7805

1 3

VIN VOUT

GND

2

U20
7805

1 3

VIN VOUT

C200
470/16V

2

1

+21V

+21V

C20

+

2200/35V

C22

+

22/16V

C25

+

22/16V

+

GND

C201

470/16V

+15V

U6
7805

1 3

VIN VOUT

GND

2

-15V

C27
47/35V

+

C60
470/16V

+

C203
104

C61
104

J17
CN17

1
2

+5V

-5V

+5V(D)

C23

+

22/16V

FAN

DC FAN

1 2

+15V

+5V

-15V

-5V

+5V(D)

Title

8210 - 04

Model

POWER SUPPLY CIRCUIT

Size
Sheet

4 of 6

Date 2002/04/13

5

4

3

2

Rev

A3

Scale

Drawing Design Checked Approved

02

2:1

DAGATRON

A

1

5

A

+15V

4

3

2

1

D D

01-R11#1

C C

01-CN3#1

R12

1.2KF

13
12

3
2

R13
120KF

D1-2
HSMS2825

-

14

+

U30D
072

+

1

-

U30A
072

R14
10K

C85
472

C86
472

R15
10K

Q3
5771

D1-1

HSMS2825

Q4
3563

R001
???

C3
33P

C4

680P(BOX)

C5

6.8n(BOX)
C6

68n(BOX)

C7

0.68n(BOX)

1

Q5

3

2N5486

2

D3

1N4148

D4

1N4148

1

Q6

3

2N5486

2

B B

R18
10

R16

1.2KF

R17
120KF

C8

0.01(C/C)

C84

30P(C/C)

+5V

Q7
2N3563

R19

1.5K

R23
11KF

R24
430F

INDUCTOR AUDIO

C10
130P

R20
1K

C9
15P(C/C)

L2

R24
430

R21
1KF

R25
11KF

C100
10n

R26
1K

8

6

1413

S

2B

VCC+VCC-

2A

1B
1A

-5V

2G
2Y

1Y

1G

5

L3
INDUCTOR AUDIO

11
12

2
1

9

4

U4
SN75107

+5V

C305
10n

L1

INDUCTOR AUDIO

4
5

U4B
74LS00

R30

4.7K

1
2

U4A
74LS00

R29

4.7K

C12

+

100/10V

C101

6

3

10n(C/C)

R31
240

R32

2.2K

R27
33

R28
22

C13
150P

J10
CN10

1
2

R170
33

TTL SYNC OUT

BNC2

OUTPUT

1

2

14

03-SW3#6
03-SW3#2
03-R46#1

Shield Box

Title

8210 - 02

Model

OSCILLATOR/TTL CIRCUIT

Size
Sheet

2 of 6

Date 2002/3/30

5

4

3

2

Rev

A3

Scale

Drawing Design Checked Approved

02

2:1

DAGATRON

A

1