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GRAPHIC EQUALIZER

G-EQ300
SERVICE MANUAL
© 1997-9/B51-5354-00 (K/K) 3669

Power button (K29-6910-08)

Dressing panel (A21-3601-03)

Front panel (A60-1354-08)

Display window (B10-2444-08)

Level button (K29-6911-08)

PATTERN

TAPE

GRAPHIC/ PARAMETRIC

PAUSE

WIDE/NARROW

EQ.LEVEL

FREQUENCY JOG

ON/STANDBY MAIN POWER

-ON ­OFF EQ.EFFECT TAPE DISPLAY REVERSE FLAT MANU./REF. 1 2 3 4 5 MEMORY BYPASS CAR H.P.ST. F1 F2 F3

POP./1 ROCK/2 JAZZ/3 FUSION/4 CLASSIC/5 MOVIE

Power button (K29-6916-08)

Tape button (K29-6914-08)

Function button (K29-6912-08)

Frequency button (k29-6913-08)

Shuttle knob (K29-6915-08)

Top cabinet (A01-3548-08)

Nylon stopper (J42-0200-08)

AC power cord * (E30-)

TAPE PLAY REC IN OUT
L

LINE IN OUT
L

SYSTEM CONTROL

AC OUTLET

R

R

D3.5 jack (E63-0186-08)x2

D3.5 jack (E11-0188-05)

Receptacle power socket * (E03-)

* Refer to parts list on page 16.

G-EQ300
CONTENTS / ACCESSORIES
Contents
CONTENTS / ACCESSORIES ................................... 2 CONTROLS .................................................................3 PC BOARD ................................................................. 5 SCHEMATIC DIAGRAM ............................................. 9 EXPLODED VIEW .....................................................15 PARTS LIST...............................................................16 SPECIFICATIONS .......................................Back cover

Accessories
Audio cord (2) (E30-2841-08) System control cord (1) (E30-2733-05) AC plug adaptor(1) (E40-9981-08)

In case of difficulty
What appears to be a malfunction may not always be serious. If your unit should not perform as expected, consult the table below to see if the problem can be corrected before seeking help from your dealer or service representative.

Operation to reset
The microprocessor may fall into malfunction (impossibility to operate erroneous display, etc.) when the power cord is unplugged while power is ON or due to an external factor. In this case, execute the following procedure to reset the micropro cessor and return it to normal condition.

{

While holding the MEMORY key depressed, press the MAIN POWER switch to on.

· Please note that resetting the microprocessor clears the contents stored in, it returns the micro processor to the condition when it left the factory.

2

G-EQ300
CONTROLS

Names and functions of parts
Graphic equalizer display Spectrum analyzer display Character display Character display Frequency display indicator

******
40 63 98 160 250 400 625 1k 1.5k 2.5k 3.9k 6.3k 10k 16 k EQ. ON MEMORY MANUAL REFERENCE GRAPHIC PARAMETRIC F1 F2 F3 WIDE NARROW

Indicators EQ. ON GRAPHIC MEMORY PARAMETRIC MANUAL F1, F2, F3 REFERENCE WIDE/NARROW

Display

1 2 3
PATTERN

4 5 6
TAPE

7 8
GRAPHIC/ PARAMETRIC

9 0

PAUSE

WIDE/NARROW

EQ.LEVEL

FREQUENCY JOG

ON/STANDBY MAIN POWER

-ON ­OFF EQ.EFFECT TAPE DISPLAY REVERSE FLAT MANU./REF. 1 2 3 4 5 MEMORY BYPASS CAR H.P.ST. F1 F2 F3

POP./1 ROCK/2 JAZZ/3 FUSION/4 CLASSIC/5 MOVIE

! @#$%^
1 MAIN POWER key
Switch the unit ON mode.

&

*

(

)

¡

8 GRAPHIC/PARAMETRIC key
GRAPHIC: Select this mode when adjust ing an equalizer curve. PARAMETRIC: Select this mode when creating an equalizer curve according to center frequencies.

2 ON/STANDBY key
Switch the unit between ON mode and STANDBY mode.

% FLAT key Press to make an equalizer curve flat. ^ MANU./REF. key
Press to switch the manual and reference functions alternately.

3 Standby indicator
Lights up to indicate that a small amount of current flows in the unit.

4 PATTERN key
Press to enter or quit the genre mode.

90EQ. LEVEL (UP) / (DOWN) keys
Press the (up) or (down) key to increase or decrease the equalizer level.

& Preset keys (1 to 5)
Typical equalizer patterns have been preset under these keys so that you can select any one of them easily.

* MEMORY key
Press this key when registering a usercreated equalizer pattern.

5 TAPE indicator
Lights up when the TAPE key is pressed to ON.

! EQ. EFFECT key
Press to turn the equalizer mode ON and OFF.

( Genre keys
Press in the genre mode to select the desired music genres and their equalizer patterns.

6 PAUSE key
Press to let an equalizer curve pause temporarily.

@ TAPE key
Use when playing back or recording a tape.

7 WIDE/NARROW key
Each press of the key switches the curve slope alternately between WIDE and NARROW.

# DISPLAY key
Press to switch the display mode or to select the demonstration mode.

) Frequency keys (F1, F2, F3)
Each key can store a desired center frequency.

$ REVERSE key
Press to reverse an equalizer curve.

¡ FREQUENCY JOG knob
Rotate the control knob to adjust the fre quency band (range).

STANDBY indicator
While standby mode is indicated, a small amount of power is supplied to the system to back up the memory . In this mode, the system can be turned ON by remote control.

3

G-EQ300
PARTS DESCRIPTIONS

4

4

7 6 2

5

3

1

5
1

A

E
13 B

B

E

B

B

E B

E

B B B

E E E

B

E B B

E

E

B

E B B

E E

B B

E B E

E

C

PC BOARD(Component side view)

B

E B B

E

E

B B

E E B

E

B B

E E B

E

B B

E B E

E

B B B

E E E

D

B B

E B E

E

B

E B B

E

E

B

E B

E

B

E

B

E

B

E

B

E B

E

B

E

B

E

B

E

E

B

E

B

E

B

E

6
B E I B E B E B E G O

F

B

E

B

E

B

E 1

E

B

E

B

E

B

E

B

B

E

B

E

B

E

B

E

B

E

B

E 11 B B E B E B E

E

G

B

E

B

E

B

E

B

E 81 80

100 1

B

E

B

E

B

E 16 1

B

E

B

E

B

E

H

51

B

E

B

E

B

E

30

50

31

E
8 B B E B E B E B E B E B E B E 1 13 E B E B E 9 B 8 9 16 1 9 8 16 1

I J

Refer to the schematic diagram for the value of resistors and capacitors.

K

L

M

N

O

P

Q

R

S

T

TAPE

PC BOARD
1

AC OUTLET AC220~ 240V AC110~ 120V SYSTEM CONTROL OUT

LINE IN

(Component side view)

REC OUT

PLAY IN

B

+ +
1 11 10
E

1 28

20

E

E

B

2
1 2 14 1 20 15 10 11

B

+

+
1 28

+
I G O

+
14
B

15

+

+ +
1 20

3

+

5

4

+
5 1 O I G 8 1

+ + + +
11 10

E

+

1

28

+

+
10 11

+

+
E B

+
14 15

MAIN POWER
4

+

+

B

+ +

20

1

+
E 1 4 1 11

+

5

7

Refer to the schematic diagram for the value of resistors and capacitors.

7

13

1

7

1

7

1

6

7

1

7

1 13 1

FREQUENCY JOG

8

A
DISPLAY PCB

B

C

D

E

F

G

H

I

J

4.7V

+4.7V

+4.7V

DISPLAY FILTER IC

DISPLAY FILTER IC
A19 A20

IC303

4.8V
16 VDD +4.8V 2 14 1 0 3 A B C 10 9 13 12 11 3 2 1 4 45 44 43
( ) ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 7 )

IC305
1 2 OUT 3 4 5 OUT 6 7 OUT 8 OUT R VSS L OUT GND 12 11 10 9 OUT OUT CLK/2 CLKR CLKC OUT VDD 16 15 +5.6V 14 13 1000P C314
R341 1.6K
( 19 ) ( 20 ) ( 21 ) ( 22 ) ( 23 ) ( 24 ) ( 25 )

IC304
1 OUT 2 3 4 OUT 5 6 OUT 7 8 OUT OUT GND L R VSS OUT 12 11 10 9 CLKC OUT OUT VDD 15 CLK/2 CLKR 14 13 16 +5.6V
R342 2.2K

(

(

5.4V

(

(

(

(

(

(

(

(

(

(

(

(

(

(

(

G1A

G2A

G3A

G4A

G5A

G6A

G7A

G8A

G10A

G11A

G12A

G13A

G14A

A50

A49

A48

A47
)

( 5 ) ( 7 )

4 2 3 4 7 6 COM

15

+5.6V

+4.7V

79

78

77

76

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54

53

52 S22/PC6

80

S39/PE7

S38/PE6

S37/PE5

S36/PE4

S35/PE3

S34/PE2

S33/PE1

S32/PE0

S31/PD7

S30/PD6

S29/PD5

S28/PD4

S27/PD3

S26/PD2

S25/PD1

S24/PD0

S23/PC7

( 6 )

5 6 7 8 VSS INH VEE

R340 2.7K R339 2.7K

C313

V2/PL5 V1/PL4 COM0/PL0 COM1/PL1 COM2/PL2 COM3/PL3 P30 P31 VSS3 VDD3 P32 P33 P34 P35 P00 P01 P02 P03 P11/SIO/SB0 (uCOM DATA) P04 P05

S20/PC4 S19/PC3 S18/PC2 S17/PC1 S16/PC0 S15/PB7 S14/PB6 S13/PB5

A45 A44 A43 A42 A41

( 26 )

D317
C325

D312

0.1

0.1

SYSCON R IN L IN

10 C316 10u50 9 8 7 6 5 4 3 2 1
)

+4.8V
R338 10K R337

+4.8V

+ -5.3V +5.6V
( A16 ) ( A15 )

-5.3V

91 92 93 94 95 96 97 98 99 100

S11/PB3 S10/PB2 S9/PB1 S8/PB0 S7/PA7 S6/PA6 S5/PA5 S4/PA4 S3/PA3 S2/PA2

A27 A28 A29 A30 A31 A32 A33 A34 A35 A36 A37

7311 DATA 7311 CLK 7311 ST 7305 CLK 7305 DI S

95 96 97 98 99

D310
( ( ( (

B13

B12

B14

B11

B10

B3

B8

B7

B6

B9

+4.7V

B2

( 10 )

( 11 )

G7B

G6B

G5B

G4B

G3B

G2B

G1B

B15

B1

B5

B4

P12/SCKO (uCOM CLK)

S1/PA1 P70/INT0 (uCOM ST)

S38/PE6

S37/PE5

S36/PE4

S35/PE3

S34/PE2

S33/PE1

S32/PE0

S31/PD7

S30/PD6

S29/PD5

S28/PD4

S27/PD3

S26/PD2

S25/PD1

S39/PE7

VSS2

S45/PF5

S44/PF4

S43/PF3

S42/PF2

S41/PF1

S47/PF7

S46/PF6

S40/PF0

V3/PL6

VDD2

S24/PD0

S23/PC7

S22/PC6

P72/INT2/TOIN

-5.3V

RES

CF1

COM1/PL1 S17/PC1 COM2/PL2 S16/PC0 COM3/PL3 S15/PB7 P30 S14/PB6 P31 S13/PB5 VSS3 S12/PB4 VDD3 P32(BACK UP) P33 SYSCON DATA S9/PB1 P34 P35 (8.16BIT SEL) P00 (7311 DATA) P01 (7311 CLK) P02 (7311 ST) P03 (7305 CLK) P04 (7305 DATA) P05 (7305 S) P06 1 2 SYSCON SEND S8/PB0 S7/PA7 S6/PA6 P11/SIO/SB0 SUB DATA S5/PA5 P12/SCKO SUB CLK P13/SO1 SUB ST S4/PA4 P72/INT2/TOIN P73/INT3/TOIN P14/SI1/SB1 S3/PA3 S0/PA0 S2/PA2 S1/PA1 P17/PWM0

47 46 45 44 43 42 41 40
( )

85 86
( 87 ) ( 88 )

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

+4.8V

87 88 89

R343 1M

4.7V

A38

X302 6MHz

R354 100K

R353 100K

R352 100K

+4.7V

)

)

( A8 )

( A9 )

( A10 )

( A11 )

( A12 )

4.7V

+4.7V

90 91

(ENCODER IN)S11/PB3 (ENCODER IN)S10/PB2

(

(

( 92 ) ( 93 ) R346 1K

92 93 94 95 96 97 98 99 100

39 38 37 36 35 34 33 32 31

R332 560
( 96 )

R318

R333 560

+4.7V

P15/SCK1

R335 560
( 99 )

P70/INT0

P71/INT1

P10/SO0

P16/BUZ

P80/AN0

P81/AN1

P82/AN2

P83/AN3

P84/AN4

P85/AN5

P86/AN6

RES

CF1

P07

CF2

G2B

G3B

G4B

G5B

G6B

G1B

G7B

R315

B15

B4

B5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

3

4

5

330

R359

R328 1K

R327 1K

R326 1K

R329

R355

39K

1K

( 11 )

( 10 )

( 19 )

( 20 )

( 21 )

( 22 )

( 23 )

( 24 )

( 25 )

( 26 )

X301 6MHz

R313 100K

R314 100K

-42V

C323 0.01

1K

H:4.3V L:0V

1K

R325 1M

30

Q302
( 3 ) ( 5 ) ( 6 )

( G1B )

( G3B )

( G5B )

+5.6V

( G4B )

( G6B )

( G7B )

( B15 )

( G2B )

( B4 )

( B5 )

Q302
+4.7V +4.7V +4.7V

-5.3V

+5.6V +5.6V -42V -42V AR313 100Kx6 -42V

+5.6V

R307 10K

AR312

100Kx6

-42V

5
+4.8V

+5.6V

B14

B12

B10

B11

-42V

-42V
R312 10K

-41.3V

ZD306
-42V
R344

R345 27K 1K

ZD304
-38.2V

ZD305
5.4V

5.4V

Q304
+5.6V +5.6V -5.3V +5.6V
R309

Q312

Q311

Q313

Q308

Q309

Q310

Q305

Q316

Q314

B13

B2

B9

B6

B7

B8

B3

Q315

14.9V

5.8V

W301
B+ B4 3 2 1 -42V +14.9V

R311 10K

R304

( B2 )

( B10 )

( B9 )

( B11 )

( B6 )

( B7 )

( B8 )

( B3 )

( B14 )

( B12 )

C303 47u16

C306 100u10

C307

+

C304 0.047F5.5

ZD301

C301 220u16

GND -42V

+

6.1V

0.01

A

+

+5.6V

-15.1V

+5.6V AVR

4.7V

+

+4.8V C322 0.01 R349 39K R350 39K R348 39K R347 39K

30

31

32

33

34

35

36

37

AC

1 2 3

1

-10.4V
R301 270

-5.3V

R306 1.2K

4.7V

Q394
-5.3V

4.9V

+5.6V

1/4W R303

C319 10u50

C320 10u50

C321 47u63

ZD302

C302 47u16

R305

100K C305

R308

C309

100K

0.01

0.01

D306

D304

D305

D307

35

34

33

32

41

40

37

36

13 5.6V

12 TAPE

11 KO1

10 KO0

9 KI0

8 KI1

7 KI2

6 KI3

5 KI4

4 KI5

3 KI6

2 KI7

1 POWER

1 KO2

2 KO3

3 GND

4 5.6V

5 ENCODER

6 ENCODER

7 KI7

8 KI6

9 KI5

10 KI4

11 KI3

12 KI2

13 KI1

CN303

CN304

D

E

7

31

(

(

(

)

+

+

+

+

RESET

(

Q301

)

3.9K -6.1V

D303

GND

+4.8V

(

)

-5.6V AVR

IN OUT

88

87

92

93

+

(

)

D302

ZD303

37 36 35 34 33 32 31

(

)

AC

3 -15.1V

)

)

(

)

6

IC306

C308 1u50

R310 10K

Q395
( ( ) )

C318 10u50

C

CENTER

RESET

4.8V

C327 0.01

R357 2.2K

W305
( )

5.4V
( ( ( (

Q334
R356 820 + +5.6V 5.4V +5.6V

( B13 )

R302 3.9K

1K

10K

+5.6V

Q393

D301

4.7V

-5.3V

( B1 )

TAPE LED CONTROL

( 7 )

AR316 100Kx8

(

)

R330

+5.6V

Q318

Q319

Q320

Q321

Q322

Q323

Q324

Q317

Q306

Q307

B1

(

)

( 100 )

VDD1

VSS1

31

R316 100K

R336 560

P87/AN7

XT1/P74

XT2/P75

D308

(

)

32

(

)

4

R334 560
( 98 )

33

(

)

( 97 )

34

330

(

)

35

(

)

( 95 )

36

R317 100K

R331 560

D309

(

)

37

(

)

MAIN u-COM

40

R324 1K

+4.7V
( 6 )

-42V

(

(

)

IC301

41

R323 1K

( A13 )

3

5

7

)

(

)

42

R322 1K

C332 0.01

R351 100K

(

)

43

R321 1K

(

)

44

R320 1K

AR315

100Kx6

AR314

100Kx6

-42V

Q392

(

)

45

R319 1K

30

POWER LED CONTROL

1

2

3

4

5

6

7

8

9

CF2

P06

P07

84

S18/PC2

VDD1

VSS1

48

S0/PA0

3

COM0/PL0

P71/INT1

P10/SO0

P13/SO1

P16/BUZ

P80/AN0

P81/AN1

P82/AN2

P83/AN3

P84/AN4

P85/AN5

P86/AN6

P87/AN7

XT1/P74

XT2/P75

83

S19/PC3

P17/PWM0

P15/SCK1

V1/PL4

49

P14/SI1/SB1

82

S20/PC4

P73/INT3/TOIN

V2/PL5

S21/PC5

81

Q389

50

(

)

ON:0V OFF:4.6V

+5.6V

100

69

68

67

66

65

64

80

79

78

77

76

75

74

73

72

71

63

62

61

60

59

58

57

56

55

54

53

52

70

51

( A7 )

31

(

)

( A6 )

32

(

)

( A5 )

33

(

)

( A4 ) ( ( ( ( ( ( ( ( ( ( (

34

(

)

( A3 ) ( ( ( ( ( ( (

35

(

)

D311

+4.7V

+4.7V

( A2 )

36

(

)

B

MUTE

+4.8V

+4.8V

( A1 )

37

(

)

+

+4.7V

10K

( A14 )

38

(

)

+ C317 10u50

39

(

)

SUB u-COM

40

(

)

-5.3V

90

IC302

S12/PB4

A26

41

(

)

D313

C324

2

SYSCON

11

89

A39

42

(

)

C312 47u16

( A17 )

88

A40

43

(

)

W302

C315 10u50

+

+5.6V

+5.6V

C311 0.01
( A18 )

86 87

45 44

Q303

(

)

85

46

(

)

42

4.8V

84

47

(

)

83

48

(

)

82

49

(

)

(

(

(

(

(

)

5

81

S21/PC5

S47/PF7

S46/PF6

S45/PF5

S44/PF4

S43/PF3

S42/PF2

S41/PF1

S40/PF0

V3/PL6

VSS2

1200P

VDD2

51

A46
)

1

D315

C1,2,3

G9A

A21

A22

A23

A24

A25

1

(

(

(

(

(

(

(

(

(

(

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

( ( )

) ) ) ) ) ) ) )

50

( ( ( ( ( (

) ) ) ) )

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

) ( ) ( )

) ( )

) ( ) ( ) ( ) ) ) ) ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )

( ) ( )

( ) ( )

( ) ( )

( ) ( )

( ) ( )

( ) ( ) ( ) ( )

( )

( ) ( )

( ) ( )

( ) ( )

( )

K

L

M

N

O

P

Q
IC301 IC302 IC303 IC304,305 IC306

R
: LC867224A-5D35 : LC867224A-5D36 : TC4051BP : XR1091P : KIA7039P

S

T

FLT301 G1B
A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 C1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A50 A49 A48 A47 A46 A45 A44 A43 A42 A41 A40 A39 A38 A37 A36 A35 A34 A33 A32 A31 A30 A29 A28 A27 A26 A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 B1

G2B
B1

G3B
B1

G4B
B1

G5B
B1

G6B
B1

B15

B16

AI AUTO AI MANUAL EQ. ON MEMORY MANUAL REFERENCE

AI CCRS AI LINK GRAPHIC PARAMETRIC F1
B11

B3

Q301 : 2SC1740S Q302,389,395 : DTC114ES Q303-333,335-388, 390,391 : DTA124ES Q334 : KTA1271Y Q392 : KTC3227Y Q393 : KTD2058Y Q394 : 2SA933S D301-313,315,317 ZD301,302 ZD303 ZD304,305 ZD306 FLT301 : 1SS131 : MTZJ6.2B : MTZJ2.7B : MTZJ4.7B : MTZJ5.6B : FIP21BMW24
SIGNAL LINE GND LINE +B LINE -B LINE

B4

B8

CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer. The DC voltage is an actual reading measured with a high impedance type voltmeter. The measurement value may vary depending on the measuring instruments used or on the product.
DTA124ES DTC114ES DTC124ES 2SA933S 2SC1740S

B5

B7

B13

B6

B12

F2

B9

F3

B10

B14 C2

WIDE
B1

NARROW
B2 +B -B

40
C3

63

98

160

260

400

626

1K

1.6K

2.6K

3.9K

6.3K

10K

16K

G1A

G2A
(A13) (A12) (A11) (A10)

G3A

G4A
(A14) (A15) (A16) (A17)

G5A
(A18) (A19) (A20) (A21) (A22) (A23)

G6A
(G1A) (A24) (A25) (C1) (C2) (C3)

G7A
(G2A) (G3A) (G4A) (G5A) (G6A) (G7A)

G8A
(G10A) (G11A) (G12A) (G13A) (G8A) (G9A)

G9A
(G14A) (A50) (A49) (A48) (A47) (A46)

G10A
(A45) (A44) (A43) (A42) (A41) (A40)

G11A
(A39) (A26) (A27) (A28) (A29) (A30)

G12A
(A31) (A32) (A33) (A34) (A35) (A36)

G13A
(A37) (A38) (B13) (B12)

G14A
(G7B) (G6B) (G5B) (G4B) (B14) (B11) (B10) (B15)

G7B
(G3B) (G2B) (G1B)

(A9)

(A8)

(A7)

(A6)

(A5)

(A4)

(A3)

(A2)

(A1)

(B3)

(B8)

(B7)

(B6)

(B9)

(B2)

(B1)

(B5)

(B4)

NP

NP

IC

IC

F

F

F

F

W505
KI6 KI3 7 6 5 4 3 2 1

3

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

SW417 4

SW420 1

( A13 )

( A12 )

( A11 )

( A10 )

( A9 )

( A8 )

( A7 )

( A6 )

( A5 )

( A4 )

( A3 )

( A2 )

( A1 )

( A14 )

( A15 )

( A16 )

( A17 )

( A18 )

( A19 )

( A20 )

( C1,2,3 )

( G1A )

( G3A )

( G4A )

( G5A )

( G6A )

( G7A )

( G8A )

( A21 )

( A22 )

( A23 )

( A24 )

( A25 )

( G10A )

( G11A )

( G12A )

( G13A )

( G14A )

( 1 )

( G2A )

( G9A )

B1
( A41 ) ( A50 ) ( A49 ) ( A48 ) ( A47 ) ( A46 ) ( A45 ) ( A44 ) ( A43 ) ( A42 )

B10

KI2

F
( A40 ) ( A39 ) ( A26 ) ( A27 ) ( A28 ) ( A29 ) ( A30 ) ( A31 ) ( A32 ) ( A33 ) ( A34 ) ( A35 ) ( A36 ) ( A37 ) ( A38 ) ( B13 ) ( B12 ) ( B14 ) ( B3 ) ( B8 ) ( B7 ) ( B6 ) ( B11 ) ( B9 ) ( B10 ) ( B2 )

KI1 KO1 KO0

B6
( G5B ) ( G4B ) ( G3B ) ( G2B ) ( B1 ) ( B5 ) ( B4 ) ( B15 ) ( G7B ) ( G6B ) ( G1B )

B2 B9 B11 B8 B14 B12 B3

SW418 5

SW421 MEMORY

TC4051BP

B7

KI0

SW419

( 3 )

-42V

AR301

100Kx6

-42V

AR302

100Kx6

AR303

100Kx6

-42V

B5 AR304 100Kx6 B4

SW422

B13

W506
KI2 1 2 3 4 5 6 7

A10

A15

A16

A17

A18

A13

A12

A11

A14

A19

A20

KI3 KO2

A9

A8

A7

A6

A5

A4

A3

A2

A1

( A13 )

( A12 )

( A11 )

( A10 )

( A9 )

( A8 )

( A7 )

( A6 )

( A5 )

( A4 )

( A3 )

( A2 )

( A1 )

( A14 )

( A15 )

( A16 )

( A17 )

( A18 )

( A19 )

( A20 )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

( )

Q368

Q367

Q366

Q365

Q364

Q363

Q362

Q361

Q360

Q359

Q358

Q357

Q356

Q369

Q370

Q391

Q390

Q348

Q349

Q350

G

KI4 KI5 KI7 KI6

ROCK

CLASSIC

NJU7305L

SW423 MOVIE

SW426 POPULAR

+5.6V -42V AR306 100Kx6 -42V

+5.6V AR305 100Kx6

+5.6V

SW427 FUSION

SW424 JAZZ

SW425
( ( ( ( ( ( ( ( ( ( ( ( ( ( (

SW428

ICP-N15

G6A

G5A

G4A

G3A

G2A

G9A

G8A

G7A

G1A

C1,2,3

A24

A25

A23

A22

A21
)

KO2

KI2

KI3

KI4

KI5

KI7 6

CN406
-42V
( C1,2,3 ) ( G2A ) ( G1A ) ( A25 ) ( A24 ) ( A23 ) ( A22 ) ( G9A ) ( G8A ) ( G7A ) ( G6A ) ( G5A ) ( G4A ) ( G3A ) ( A21 )

1

2

3

4

5

F F1
KO1 KO0 KI6 KI3 KI2 KI1

KI6 7

+5.6V -42V AR307 100Kx6 -42V

+5.6V AR308 100Kx6 AR309 100Kx6

CN405

KI0

G10A

G11A

G12A

G13A

G14A

A44

A43

A42

A50

A49

A48

A47

A46

A45

A41

)

)

)

)

)

)

)

)

)

)

)

)

)

)

Q342

Q341

Q331

Q330

Q329

Q328

Q327

Q326

Q325

Q371

Q355

Q354

Q353

Q352

Q351

G

NJM4558DD

7

6

5

4

3

2

1

SW410 DOWN

SW411 EFFECT DISPLAY
( ( ( ( ( ( ( ( ( ( ( ( ( ( (

UP

FREQUENCY JOG ENCODER

-42V

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

SW401 Q343
+5.6V

SW402 PATTERN

Q344

Q345

Q346

Q347

Q340

Q339

Q338

Q337

Q336

Q335

Q333

Q332

Q372

Q373 POWER

SW412 F2

S940

M5229P
COM B

( G10A )

( G11A )

( G12A )

( G13A )

( G14A )

( A50 )

( A49 )

( A48 )

( A47 )

( A46 )

( A45 )

( A44 )

( A43 )

( A42 )

( A41 )

SW403 TAPE

REVERSE

F3

A

SW405

SW413

R403 +5.6V -42V +5.6V AR311 100Kx6 -42V AR310 100Kx6 R407
R401 R402

MAIN PCB -CN101
R404 10K

+5.6V

SW407 SW404 MANUAL
R406

SW414 WIDE

10K

PAUSE

2/2

270

10K

SW408 SW406 FLAT

SW415
680

GRAPHIC

LED401

C401 0.01

C402 0.01

10K

A
MAIN PCB -CN102 2/2

(

(

(

(

(

(

(

(

(

(

(

(

A38

A37

A36

A35

A34

A33

A32

A31

A30

A29

A28

A27

A26

A39

A40

LED402

( )

( )

( )

SW409

SW416
+4.8V

NJU7311AL

)

)

)

)

)

)

)

)

)

)

)

)

Q376
+5.6V

Q377

Q378

Q379

Q380

Q381

Q382

Q383

Q384

Q385

Q386

Q387

Q388

Q375

Q374
5.4V
1 POWER LED 2 KI7 3 KI6 4 KI5 5 KI4 6 KI3 7 KI2 8 KI1 9 KI0 10 KO0 11 KO1 12 TAPE LED 13 VCC +5V

+5.6V 13 KI1 12 KI2 11 KI3 10 KI4 9 KI5 8 KI6 7 6 5 4 5.6V 3 GND 2 KO3 1 KO2

4.8V

B
POWER TRANSFORMER 2/2

+5.6V

+5.6V

D

E

KI7 ENCODER OUT ENCODER OUT

( A38 )

( A37 )

( A36 )

( A35 )

( A34 )

( A33 )

( A32 )

( A31 )

( A30 )

( A29 )

( A28 )

( A27 )

( A26 )

( A39 )

( A40 )

W403

W404

G-EQ300(M) (1/2)

C

G-EQ300

Y09-4610-10

U

V

W

X

Y

Z

AA

AB

AC

AD

MAIN PCB
R127 1.2K C169 4.7u100 + +15.3V -15.1V C115 4.7u100 R103 820K C101 220P + C113 0.01 C114 0.01 C147 4.7u100 R123 R129 R133 820K 47K 100K R125 820K -15.1V -15.1V +15.3V

(K.P) TYPE
T301 POWER TRANSFORMER

C220 4700P

(X) TYPE
T301 POWER TRANSFORMER

C220 4700P

JACK101

+15.3V R101 470 -15.1V

+15.3V

1
PLAY IN

L

-15.1V

15.3V

W102
2

SW101 1 2 SW101

W101
1 2

W102
2

SW101 1 2 250V T1.6A

W101
1 2 AC240V 50Hz

C171 4.7u100 +

C175 -15.1V +15.3V 220P +15.3V -15.1V

R104

820K C102

220P

R131 11K +15.3V -15.1V +

C173 4.7u100 +

R TAPE L

R102 470 R105

C177 1800P 2700P C183 C179 220P

R135 11K

C137 C143 C139 0.68 0.56 R107 47K C103 470P 220P 14 15 16

1.5K

SW101

A0101
12 13 14 15 16 17 18 19 20 VD GND 560 560 VE

11

12

13

17

18

19

20

+15.3V

-15.1V

REC OUT
R108 47K C104 470P R106 1.5K

11

MAIN POWER
1

F102

MAIN POWER

AC120V 60Hz

A0102 UNSWITCHED AC OUTLET

VD

GND

560

560

VE

IC103
+ -

IC107
E.Q IC (BOTTOM VIEW) (E) TYPE
C220 4700P POWER TRANSFORMER 1

R

10K 47K 47K 47K
+ + + -

10K

47K

47K

47K

(BOTTOM VIEW)

47K

47K

47K

47K

47K

47K

47K

47K

L

R109 R111 820K C105 220P 470

560

560

560

560

560

560

560

560

560

560

Lch
28 27 26 25 24 23 22 21 20 19 18 17 16 15 10

IC105
(BOTTOM VIEW)
1 10

R112

820K C106

220P

C181 2200P

C185 3300P

250V T1.6A

C145 0.82

5600P

0.082

0.056

0.015

0.022

IN2R 25 FR7 24 FR6 23 FR5 22 FR4 21 FR3 20

IN2L FL7 FL6 FL5 FL4 FL3 FL2 FL1 10 9 7 8 6 5 4

VSS

GND

ST

0.033

C133

C129

C125

C121

C117

C157

C153

C165

C161

C149

0.27

0.18

0.1

26

3

8200P

470

C141 0.47

R

0.33

0.22

0.15

0.068

0.043

27 IN1R IN1L

2

4300P

7500P

0.01

0.018

0.027

SW101

F102

Rch
-15.1V
C109 330P R120 560

C111 330P C110 330P R121 560 R122 560

MAIN POWER
1

A0101

SW101

MAIN POWER
1

F102

R110

C135

C131

C127

C123

C119

NC

VDD

C167

C163

C159

C155

C151

250V T1.6A

VDD

DATA

CK

2

LINE IN

9

8

7

6

5

4

3

2

9

8

7

6

5

4

3

2

1

28

1

13

10

11

12

14

1

2

3

4

5

6

7

8

9

FR2 19 FR1 AR101 820K x 7 18 VSS
( 17 )

-15.1V

+15.3V

( 13 )

( 15 )

( 16 )

+6.7V

AR103 820K x 7 T301

L

R113 1.5K R115 C107 470K 220P

Q106

R117 4.7K

TEST1 TEST2 S VEE

11 12 13 14 -6.7V +6.7V +6.7V

17 CLK 16 15 VCC DI

LINE OUT
R116 C108 470K 220P

MUTE
R118 4.7K

R

+6.7V

3

R114 1.5K

Q105

-6.7V
+5V
( 13 )

F102

-6.7V

250V T1.6A

MUTE ON NOR

: 9.8V : -14.9V

( 16 )

6.7V

5.0V
R128 1.2K C170 4.7u100 + -15.1V -15.1V

15.3V
+15.3V

+15.3V -15.1V C116 4.7u100 R124

+15.3V

14.8V

R130

R134

820K

R126

820K

+15.3V

C172 4.7u100 +

C174 220P

-15.1V

+15.3V

+15.3V

D105
C144 C140 0.68

1800P

Q104
R141 100K C207 220u16

+15.3V

-15.1V

MUTE ON : 4.5V MUTE OFF : 0V
+

2700P

C184

0.56

C180

C138 220P

-15.1V

220P

11K

-15.1V

C178

R136

-6.7V

Q101

MUTE ON : 0V MUTE OFF : 13.5V

C148 4.7u100

11K +

+

+15.3V

MUTE CONTROL

0V

R132

C176 4.7u100

+5V

47K

D103

D104

+

100K

11

12

13

14

15

16

17

18

19

11

12

13

14

15

16

17

18

19

20

20

C217 1u100

GND

VD

VE

GND

VD

560

560

560

560

VE

IC102
+ -

+

R119

100K

10K 47K 47K 47K
+ + + -

10K

+15.3V

+6.7V

C192 100u16

C196 100u16

0.01 C218 100u16

C191

C199

15.3V
47K 47K 47K 47K 47K 47K 47K 47K 47K 47K

0.01

4
0V
R137 100 C209 1u100 + R139

C197 1000u35

ZD101

ZD102

+

+

47K

47K

47K

+

+15.3V

15V AVR

+

(BOTTOM VIEW)

D102

D101

+ C200

IC108(1/2)
3 + 100K C211 220P 2 8

C198 1000u35

ZD104

0.01

C194 100u16

0.01 C219 100u16

C193

1 560

+5V

560

560

560

560

560

560

560

560

560

IC104
(BOTTOM VIEW)
10 1

0V
-15.1V 10

9

8

7

6

5

4

3

2

9

8

7

6

5

4

3

0V
R140 100K C210 6

BUFFER
220P

2

1

C182 2200P

C186 3300P

C136 C146 0.82 C142 0.47 5 7 4 0.33 C134 C130 0.27 0.18

C132 0.22 C126 0.1

C128 0.15 C122

C124 0.068 0.082 C118

C120 0.043 0.056

28 NC 27 IN1R 26 IN2R 25 FR7 24 FR6 23 FR5 22 21 FR3 20 FR2 19 FR1 FL2 FL1 FL3 FR4 FL5 FL4 FL7 FL6 IN2L IN1L VDD

1 2 3 4 5 6 7 8 9 10

C168 4300P 5600P C166 C162

C164 7500P 8200P 0.015 C158

C160 0.01 C154

C156 0.018 0.022 C150

C152 0.027 0.033 -6.7V

R138 100

C208 1u100 + C214 220P C215 220P

C201 33u50

2.7K C202 10u50

R148

+

FR101 4.7 1/4W

R156

100K

+

0V

+

IC108(2/2)
-15.1V

Rch
-15.1V

ZD103

JACK103 SYSTEM CONTROL

R149

7.5K

C205 100u63

+

C206 47u50

C203 470u63

+

Q102
R150 39K R151 R152 4.7K

+

-6.6V

C204 0.01

F103

+6.7V

5
D119 D118 DISPLAY PCB -W301 1/2
( ( (

-42V AVR

4.7K

D113
4 FR102 5 2

AR102 820K x 7 18 VSS C187 330P C188 330P TEST1 17 CLK 16 DI R142 560
( 17 )

AR104 820K x 7

-41.3V

Q103

-55.48V

11 12 13 14 C189 330P -6.7V +6.7V

3.3 1/4W

D112

W305
AC

SW101

F102

-55.6V

250V T1.6A

( 17 ) ( 16 )

TEST2 S VEE

6.7V
+14.9V -15.1V -42V

15 VCC

R144 560
( 16 )

-6.7V
+5V +5V

R143 560
( 13 ) ( 13 ) ( ( (

A
DISPLAY PCB -W302
11 SYSCON 10 SYSCON 9 L OUT 8 R OUT 7 MUTE

15

16

13

5.0V

17

16

6 7311 DA

5 7311 CK

4 7311 ST

3 7305 CLK

2 7305 DI

13

1 7305 S

1/2

B
DISPLAY PCB -W305 B A

6

1/2

C

CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
7

The DC voltage is an actual reading measured with a high impedance type voltmeter. The measurement value may vary depending on the measuring instruments used or on the product.

GND

-42V

B+

B-

CN102

+

+

+

+

+

+

+

+

+

+

Lch

E.Q ELECTRIC VOL.IC

+

+

+ -

+ -

E.Q IC

10K

10K

+

+

+

+

+

+

+

+

+

+

JACK102

15.3V

INPUT SELECTOR

47K

47K

IC101

E.Q ELECTRIC VOL.IC

+ -

+ -

E.Q IC

UNSWITCHED AC OUTLET

10K

10K

(C) TYPE
T301 POWER TRANSFORMER

C220 4700P

T301

W102
2

SW101 1 2

W101
1 2 AC230V 50Hz

W102
2

SW101 1 2

W101
1 2 AC220V 50Hz

A0101 UNSWITCHED AC OUTLET

UNSWITCHED AC OUTLET

(T) TYPE
POWER TRANSFORMER

C220 4700P

W102
2

SW101 1 2

W101
1 2 AV230V 50Hz

+5V

SW101

UNSWITCHED AC OUTLET A0101

MAIN POWER
15.3V
1

FR154 390 2W +15.3V FR145 +6.7V

15.3V

FR155 390 2W

IC106
E.Q IC (BOTTOM VIEW)

6.7V
+5V

5.0V

680 FR146 680

IC109
OUT IN GND

24.3V

D116 D117
C112 0.01

L103 0.5uH

-6.7V
FR147

-15V AVR
GND OUT IN

D108 D109

IC101 : NJU7311AL IC102,103,106,107 : M5229P IC104,105 : NJU7305L IC108 : NJM4565DD IC109 : NJM7815FA IC110 : NJM7915FA : Q101 : DTA124TS Q102 : 2SA933S Q103 : KTB1366Y Q104 : DTC124ES Q105,106 : KTC2878

D101-107,118,119 D108-117 ZD101,104 ZD102 ZD103

: : : : :

1SS131 1N4002A MTZJ6.8B MTZJ5.1B MTZJ6.2B

SIGNAL LINE GND LINE
+B -B

+B LINE -B LINE

-6.7V 680 -15.1V

-26.0V
C195 4.7u100

D106

-15.1V

IC110
R153 100K +

D110 D111 (M,Y) TYPE D115 D114
1 2 3 POWER TRANSFORMER AC220240V AC110120V SW102 T301 C220 4700P

D107

W306

W103
3

SW101 1 2

W101
1 2 110-120/ 230-240V 50/60Hz

-6.0V

C

C AC 1

MAIN POWER

A0101

UNSWITCHED AC OUTLET

)

)

)

)

)

)

4

3

2

1

CN101

G-EQ300(M) (2/2)

G-EQ300
Y09-4610-10

G-EQ300
EXPLODED VIEW (UNIT)
A B C
AC OUTLET

A Ax2

A A

A0101
D

VOLTAGE SELECTOR S/W

617
SYSTEM CONTROL

SW102 JK103
TAPE/LINE

616 618 615 601
1
Ax2
PATTEAN

Ax2

Ax2

628
Ax2 Ax3 A

627

A Dx3

JK103

610 636 FLT301
754

Ax2 Ax2

A B C D E

ø3x8(BLK) ø3x8 ø3x6 ø3x17 M4x8

: N89-3008-45 : N89-3008-46 : N89-3006-46 : N89-3017-46 : N89-4008-46

SW405
PAUSE POWER

SW403
EFFECT

SW408
TAPE DISPLAY REVEASE FLAT MANUAL

704

SW401 SW404 SW402 SW407 SW409 SW406
Bx3 Bx11 753 Bx2 729 Bx2 729 760 Bx3 C Ex2 751 750 C 752

728

Bx2 B

606

630
Bx3

Bx9

634 605 632 631 633
Bx2

730
GRAPHIC UP

C C

SW416 SW412
WIDE DOWN

T301

730

SW415 SW411
FREQUENCY JOG

2

B

626x4

603 620 602
1 2

728
F1 F2

S340
F3

SW410 SW413 SW414

635
3

Ax3

4

5

MEMORY

POPULAR

ROCK

JASS

FUSION

CLASSIC

MOVIE

SW421 SW420 SW417 SW418 SW419 SW422

SW424 SW426 SW428 SW425 SW423 SW427
Bx4

625x4

705

G-EQ300
Parts with exploded view numbers larger than 700 are not supplied. 15

G-EQ300
V New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Address 1A 2A 2A 2A 2A New Parts V V V V V Parts No. Description Destination

PARTS LIST
1
Remarks Ref. No C101,102 C103,104 C105-108 C109-111 C112-114 C115,116 C117,118 C119,120 C121,122 C123,124 C125,126 C127,128 C129,130 C131,132 C133,134 C135,136 C137,138 C139,140 C141,142 C143,144 C145,146 C147,148 C149,150 C151,152 C153,154 C155,156 C157,158 C159,160 C161,162 C163,164 C165,166 C167,168 C169-173 C174,175 C176 C177,178 C179,180 C181,182 C183,184 C185,186 C187-189 C191 C192 C193 C194 C195 C196 C197,198 C199,200 C201 C202 C203 C204 C205 C206

V New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Address New Parts Parts No. CK45FB1H221K CK45FB1H471K CK45FB1H221K CK45FB1H331K CK45FB1H103K CE04KW2A4R7M CQ93FM1H563J CQ92FM1H433J CQ93FM1H823J CQ93FM1H683J CQ93FM1H104J CQ93FM1H154J CQ92FM1H184J CQ92FM1H224J CQ92FM1H274J CQ93FM1H334J CK45FB1H221K CQ92FM1H564J CQ92FM1H474J CQ92FM1H684J CQ92FM1H824J CE04KW2A4R7M CQ93FM1H333J CQ93FM1H273J CQ93FM1H223J CQ93FM1H183J CQ93FM1H153J CQ93FM1H103J CQ93FM1H822J CQ92FM1H752J CQ93FM1H562J CQ92FM1H432J CE04KW2A4R7M CK45FB1H221K CE04KW2A4R7M CK45FB1H221K CQ93FM1H182J CQ93FM1H222J CQ93FM1H272J CQ93FM1H332J CK45FB1H331K CK45FB1H103K CE04KW1C101M CK45FB1H103K CE04KW1C101M CE04KW2A4R7M CE04KW1C101M CE04KW1V102M CK45FB1H103K CE04KW1H330M CE04KW1H100M CE04KW1J471M CK45FB2H103Z CE04KW1J101M CE04KW1H470M CERAMIC CERAMIC CERAMIC CERAMIC CERAMIC ELECTRO MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR CERAMIC MYLAR MYLAR MYLAR MYLAR ELECTRO MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR ELECTRO CERAMIC ELECTRO CERAMIC MYLAR MYLAR MYLAR MYLAR CERAMIC CERAMIC ELECTRO CERAMIC ELECTRO ELECTRO ELECTRO ELECTRO CERAMIC ELECTRO ELECTRO ELECTRO CERAMIC ELECTRO ELECTRO Description 220PF 470PF 220PF 330PF 0.010UF 4.7UF 0.056UF 0.043UF 0.082UF 0.068UF 0.10UF 0.15UF 0.18UF 0.22UF 0.27UF 0.33UF 220PF 0.56UF 0.47UF 0.68UF 0.82UF 4.7UF 0.033UF 0.027UF 0.022UF 0.018UF 0.015UF 0.010UF 8200PF 7500PF 5600PF 4300PF 4.7UF 220PF 4.7UF 220PF 1800PF 2200PF 2700PF 3300PF 330PF 0.010UF 100UF 0.010UF 100UF 4.7UF 100UF 1000UF 0.010UF 33UF 10UF 470UF 0.010UF 100UF 47UF K K K K K 100WV J J J J J J J J J J K J J J J 100WV J J J J J J J J J J 100WV K 100WV K J J J J K K 16WV K 16WV 100WV 16WV 35WV K 50WV 50WV 63WV Z 63WV 50WV Destination

2
Remarks

G-EQ300
601 602 603 605 606 610 615 616 617 617 617 617 617 617 618 620 625 626 627 628 630 631 632 633 634 635 636 2C 2C 1C 1C 2A 2B 2A 2B 2A 2A 1B 1B 1A 1A 1C 1C 1C 1C 1C 1C 1A 2A V V A01-3548-08 A21-3601-03 A60-1354-08 B10-2444-08 B19-1585-08 B46-0096-53 B46-0310-03 B46-0326-03 B46-0330-03 B46-0336-03 B60-3538-08 B60-3538-08 B60-3539-08 B60-3540-08 B60-3541-08 B60-3542-08 B60-3543-08 B60-3544-08 B60-3545-08 D21-1894-08 E30-2841-08 E30-2733-05 E30-2799-08 E30-2800-08 E30-2810-08 E30-2840-08 E30-2875-08 E30-2876-08 E40-9981-08 H30-0100-04 H10-7434-08 H25-1575-08 H25-1601-08 H50-2644-08 H50-2645-08 H50-2646-08 J02-1401-08 J19-5725-08 J42-0200-08 J61-0101-05 K29-6910-08 K29-6911-08 K29-6912-08 K29-6913-08 K29-6914-08 K29-6915-08 K29-6916-08 CABINET,TOP PANEL,DRESSING PANEL AFTER PROCESS,FRONT WINDOW AFTER PROCESS,DISPLAY LENS,POWER WARRANTY CARD WARRANTY CARD WARRANTY CARD WARRANTY CARD WARRANTY CARD INSTRUCTION MANUAL(ENG) INSTRUCTION MANUAL(ENG) INSTRUCTION MANUAL(FRN) INSTRUCTION MANUAL(GRN) INSTRUCTION MANUAL(NTR) INSTRUCTION MANUAL(ITL) INSTRUCTION MANUAL(SPN) INSTRUCTION MANUAL(CHN) INSTRUCTION MANUAL(TWN) HOLDER,POWER CORD,RCA CORD,SYSTEM CORD,AC CORD,AC CORD,AC CORD,AC CORD,AC CORD,AC ADAPTER,AC PLUG TAPE CUSHION,SNOW POLY BAG,SET POLY BAG BOX,GIFT AFTER PROCESS BOX,GIFT AFTER PROCESS BOX,GIFT AFTER PROCESS FOOT ASSY SUPPORTER,PCB STOPPER,NYLON STRAP,CABLE BUTTON AFTER PROCESS,POWER BUTTON AFTER PROCESS,LEVEL BUTTON AFTER PROCESS,FUNCTION BUTTON AFTER PROCESS,FREQUENCY BUTTON AFTER PROCESS,TAPE KNOB AFTER PROCESS,SHUTTLE KNOB AFTER PROCESS,POWER

X ET C KY P KPYMCX T PE E E E EM C M

V V V V V V V V V V

E KP X Y T C M

V V V V V

KPYXTE M C

V V V V V V V

ELECTRIC PARTS
LD401 LD402 V B30-2512-08 B30-2524-08 LED LED P16-RD P12-RD C : China

L : Scandinavia Y : PX(Far East, Hawaii) Y : AAFES(Europe)

K : USA P : Canada R : Mexico T : Europe E : Europe G : Germany X : Australia M : Other Areas

L : Scandinavia Y : PX(Far East, Hawaii) Y : AAFES(Europe)

K : USA P : Canada R : Mexico T : Europe E : Europe G : Germany X : Australia M : Other Areas indicates safety critical components.

16

indicates safety critical components.

G-EQ300
V New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No C207 C208,209 C210,211 C214,215 C217 C218,219 C220 C301 C302 C303 C304 C305 C306 C307 C308 C309 C311 C312 C313 C314 C315-320 C321 C322,323 C324,325 C326,327 C332 C401,402 A0101 A0101 A0101 A0101 A0101 JACK101,2 JACK103 W101 W102 W102 W301 W302 W305 W306 F102 L103 T301 T301 T301 T301 T301 X301,302 AR101-104 AR301-315 AR316 FR154,155 V V V V V V V Address New Parts Parts No. CE04KW1C221M CE04KW2A010M CK45FB1H221K CK45FB1H221K CE04KW2A010M CE04KW1C101M C91-1441-08 CE04KW1C221M CE04KW1C470M CE04KW1C470M C90-3741-08 CK45FB1H103K CE04KW1H101M CK45FB1H103K CE04KW1H010M CK45FB1H103K CK45FB1H103K CE04KW1C470M CQ93FM1H122J CQ93FM1H102J CE04KW1H100M CE04KW1J470M CK45FB1H103K CK45FB1H104Z CK45FB1H103K CK45FB1H103K C91-0769-05 E03-0322-08 E03-0323-08 E03-0324-08 E03-0334-08 E03-0358-08 E63-0186-08 E11-0188-05 E40-9986-08 E35-1608-08 E40-8207-08 E40-8003-08 E40-8001-08 E40-9971-08 E35-1606-08 F05-1612-05 L39-0085-05 L07-2516-08 L07-2517-08 L07-2518-08 L07-2519-08 L07-2520-08 L78-0676-08 R90-0491-08 R90-0500-05 R90-0944-08 RS14GB3D391J ELECTRO ELECTRO CERAMIC CERAMIC ELECTRO ELECTRO CERAMIC ELECTRO ELECTRO ELECTRO BACKUP C CERAMIC ELECTRO CERAMIC ELECTRO CERAMIC CERAMIC ELECTRO MYLAR MYLAR ELECTRO ELECTRO CERAMIC CERAMIC CERAMIC CERAMIC CERAMIC Description 220UF 1.0UF 220PF 220PF 1.0UF 100UF 4700PF 220UF 47UF 47UF 0.047F 0.010UF 100UF 0.010UF 1.0UF 0.010UF 0.010UF 47UF 1200PF 1000PF 10UF 47UF 0.010UF 0.10UF 0.010UF 0.010UF 0.010UF 16WV 100WV K K 100WV 16WV 250WV 16WV 16WV 16WV 5.5WV K 50WV K 50WV K K 16WV J J 50WV 63WV K Z K K K T KPY EM X C

PARTS LIST
3
Destination Remarks Ref. No R301

V New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Address New Parts Parts No. RD14GB2E271J T99-0595-08 S68-0080-08 S62-0046-08 S70-0046-08 1SS131 1N4002A 1SS131 1SS131 1SS131 1SS131 ICP-N15 FIP21BMW24 NJU7311AL M5229P NJU7305L M5229P NJM4558DD NJM7815FA NJM7915FA LC867224A-5D35 LC867224A-5D36 TC4051BP XR1091 KIA7039P DTA124TS 2SA933S KTB1366Y DTC124ES KTC2878 2SC1740S DTC114ES DTA124ES KTA1271Y DTA124ES DTC114ES DTA124ES KTC3227Y KTD2058Y 2SA933S DTC114ES MTZ6.8B MTZ5.1B MTZ6.2B MTZ6.8B MTZ6.2B MTZ2.7B MTZ4.7B MTZ5.6B FL-PROOF RD SW,ROTARY SW,PUSH SW,SLIDE SW,TACT DIODE DIODE DIODE TRANSISTOR TRANSISTOR TRANSISTOR IC(PROTECT IC) DISPLAY IC(ANALOG SWITCH) IC(7CH GRAPHIC EQUALIZER) IC(ELECTRIC VOLUME) IC(7CH GRAPHIC EQUALIZER) IC(OP AMP X2) IC IC IC IC IC(8CH MPX/ DE-MPX) IC(DISPLAY FILTER) IC TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR ZENER DIODE ZENER DIODE ZENER DIODE ZENER DIODE TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR Description 270 J 1/4W Destination

4
Remarks

S940 SW101 SW102 SW401-428 D101-107 D108-117 D118,119 D301-313 D315 D317 F103 FLT301 1B IC101 IC102,103 IC104,105 IC106,107 IC108 IC109 IC110 IC301 IC302 IC303 IC304,305 IC306 Q101 Q102 Q103 Q104 Q105,106 Q301 Q302 Q303-333 Q334 Q335-388 Q389 Q390,391 Q392 Q393 Q394 Q395 ZD101 ZD102 ZD103 ZD104 ZD301,302 ZD303 ZD304,305 ZD306

(POWER) (VOLTAGE)

YM

V

SOCKET,POWER RECEPTACLE SOCKET,POWER RECEPTACLE SOCKET,POWER RECEPTACLE SOCKET,POWER RECEPTACLE SOCKET,POWER RECEPTACLE TER,RCA,4PIN JACK,D3.5 CN.WAFER,2P CN.WAFER,2P CN.WAFER,3P CN,WIRE 4P CN.WIRE 11P CN.WAFER 3P CN.WAFER,5P FUSE(250V,T1.6) COIL,0.5UH POWER TRANSFORMER POWER TRANSFORMER POWER TRANSFORMER POWER TRANSFORMER POWER TRANSFORMER RESONATOR,CERAMIC R,NETWORK 820KX8 MULTI-COMP 100KX6 R,NETWORK 100KX8 FL-PROOF RS 390 J J2W 1/4W

V

V

KPTECX MY

EXCTMY ET MY KP C X

L : Scandinavia Y : PX(Far East, Hawaii) Y : AAFES(Europe)

K : USA P : Canada R : Mexico T : Europe E : Europe G : Germany X : Australia M : Other Areas indicates safety critical components.

L : Scandinavia Y : PX(Far East, Hawaii) Y : AAFES(Europe)

K : USA P : Canada R : Mexico T : Europe E : Europe G : Germany X : Australia M : Other Areas indicates safety critical components.

17

G-EQ300
SPECIFICATIONS
[Audio block]
Total harmonic distortion (at 1 kHz, Flat) ...................0.005% Frequency response ..........................10 Hz ~ 70 kHz, ±3 dB Signal to noise ratio (IHF '66) .....................................108 dB Graphic equalizer characteristics Adjustment center frequencies........40 Hz, 63 Hz, 98 Hz, 160 Hz, 250 Hz, 400 Hz, 625 Hz, 1 kHz, 1.5 kHz, 2.5 kHz, 3.9 kHz, 6.3 kHz, 10 kHz, 16 kHz Equalizer characteristic variable range .................±12 dB Input impedance Line .........................................................................47 k Maximum output voltage (at 1% T.H.D.)...........................7 V Output Impedance Line ........................................................................2.2 k

[General]
AC outlets For the U.S.A. and Canada UNSWITCHED ................................1 (200W, 1.6A max.) For other countries UNSWITCHED..........................................1 (200W max.) Power consumption .......................................................18 W Dimensions .........................................W : 400 mm (15-3/4") H : 141 mm (5-9/16") D : 375 mm(15-3/16") Weight (net) ...................................................4.6 kg (10.2 lb)

Notes

1. KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. 2. Sufficient performance may not be possible at very low temperatures(0°C or less).

Note: Component and circuit are subject to modification to insure best operation under differing local conditions. This manual is based on Europe (E) standard, and provides information on regional circuit modification through use of alternate schematic diagrams, and information on regional component variations through use of parts list.

14-6,Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150 Japan

KENWOOD SERVICE CORPORATION
P.O BOX 22745, 2201 East Dominguez St., Long Beach, CA 90801-5745, U.S.A.

KENWOOD ELECTRONICS CANADA INC.
6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

KENWOOD ELECTRONICS LATIN AMERICA S.A.
P.O BOX 55-2791, Piso 6 plaza Chase, Cl. 47 y Aquilino de la Guardia Panama, Republic de Panama

KENWOOD ELECTRONICS U.K. LIMITED
KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB., United Kingdom

KENWOOD ELECTRONICS BENELUX N.V.
Meachelsesteenweg 418, B-1930 Zaventem, Belgium

KENWOOD ELECTRONICS DEUTSCHLAND GMBH
Rembrücker Str. 15, 63150 Heusenstamm, Germany

KENWOOD ELECTRONICS FRANCE S.A.
13 Boulevard Ney, 75018 Paris, France

KENWOOD ELECTRONICS ITALIA S.p.A.
Via G. Sirtori, 7/9 20129, Milano, ltaly

KENWOOD IBÉRICA S.A.
Bolivia, 239-08020 Barcelona, Spain

KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.
(A.C.N. 001499 074) P.O Box 504, 8 Figtree Drive, Australia Centre, Homebush, N.S.W. 2140, Australia

KENWOOD & LEE ELECTRONICS, LTD.
Unit 3712-3724, Level 37, Tower 1, Metroplaza, 223 Hing Fong Road, Kwai Fong N.T., Hong Kong

KENWOOD ELECTRONICS GULF FZE
P.O.Box 61318, Jebel Ali, Dubai, U.A.E.

KENWOOD ELECTRONICS SINGAPORE PTE LTD.
No. 1 Genting Lane #02-02, KENWOOD Building, Singapore, 349544

KENWOOD ELECTRONICS (MALAYSIA) SDN BHD.
#4.01 Level 4, Wisma Academy Lot 4A, Jalan 19/1 46300 Petaling Jaya Selangor Darul Ehsan Malaysia