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17

Number of repeat for CD playback is 5 times when the repeat mode
is “REPEAT”. This mode is used to enables CD to repeat playback
for limitless times.
Procedure:

1. Press the

I

/1

button to turn the power on.

2. Press the [CD] button to select “CD”.
3. Press three buttons of

x

, [CD] and 

u

 simultaneously.

4. The message “LIMIT OFF” is displayed on the fluorescent

indicator tube momentarily, CD repeat 5 limit is cancelled.

This mode is used to changed over CD and USB power on/off for
decreasing of reception noise in the tuner mode.
Procedure:

1. Press the

I

/1

button to turn the power on.

2. Press the [CD] button to select “CD”.
3. Press the

I

/1

button to turn the power off.

4. Press two buttons of

x

and

I

/1

simultaneously.

5. The message “CD POWER ON” or “CD POWER OFF” is

displayed on the fluorescent indicator tube, and CD and USB
power on/off changed over in the tuner mode.

This mode is used to changed over MP3 booster on/off.
Procedure:

1. Press the

I

/1

button to turn the power on.

2. Press the [USB] button to select “USB”.
3. Press three buttons of

x

, [SURROUND] and  [USB] simulta-

neously.

4. The message “BOOSTER ON” or “BOOSTER OFF” is

displayed on the fluorescent indicator tube, and MP3 booster
on/off changed over.

This mode is used to changed over the exciter on/off.
Procedure:

1. Press the

I

/1

button to turn the power on.

2. Press the [CD] button to select “CD”.
3. Insert a MP3 disc.
4. Press three buttons of

x

,[SURROUND] and  [AUDIO] simul-

taneously.

5. The message “EXCITER ON” or “EXCITER OFF” is

displayed on the fluorescent indicator tube, and the exciter
on/off changed over.

This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.
Procedure:

1. Press the

I/

1

button to turn the power on.

2. Press the [CD] button to select “CD”.
3. Press three buttons of

x

, [FOLDER ---] and  [SURROUND]

simultaneously, the message “SERVICE” is displayed on the
fluorescent indicator tube.

4. Press the [TUNING ---] button to move the optical pick-up to

inside track and the message “SLED IN” is displayed on the
fluorescent indicator tude, or press the [TUNING +] button to
outside track and the message “SLED OUT” is displayed on
the fluorescent indicator tude.

5. Press the [DISPLAY] button, “LD ON” or “LD OFF” is dis-

played  on the fluorescent indicator tude. Each time [DISPLAY]
button is pressed, laser diode on/off is changed over.

6. To release this mode, press three buttons of  

x

 , [FOLDER ---]

and [SURROUND].

The 9th and 10 th digit from the left indicates:
(Tray status display)
The 9th and 10th digit from the left indicates which target processing
when an error occurred is indicated.

Display

Status

0

1

Open operation

1

2

Close operation

1

8

Ex-open operation

When this mode is entered, optical pick-up error code is displayed
with the 8-character format on the fluorescent indicator tube.

The first digit from the left indicates:
The first digit from the left indicates which mode the error history
is. In the optical pick-up error code mode, “D” is displayed on the
fluorescent indicator tube.

The second digit from the left indicates:
(Error history No. display)
The second digit from the left indicates which order the error history
is. “0” indicates the latest error history, and each time the number
increases by one, the error history goes back to one-previous error.

The third and 4th digit from the left indicates:
(Error status display)
The third and 4th digit from the left indicates which error status is
indicated.

Display

Status

0

1

Not focused (TOC read without a disc)

0

2

GFS NG (TOC read with a disc chucked)

0

3

Start operation time-over

0

4

Defocused continuously (Defocused during TOC reading)

0

5

Q code not entered for specified time

0

6

Tracking not turned ON

0

7

Blank disc (Blank disc TOC read)

The 5th and 6th digit from the left indicates:
(Error step display)
The 5th and 6th digit from the left indicates which processing when
a trouble occurred

Display

Contents

0

1

Power OFF in progress

0

2

Initialize in progress

0

3

Oscillation stopping

0

4

From oscillation stop, oscillation starting

0

5

Stopping

0

6

Stop operation is under way

0

7

Start operation in progress

0

8

TOC read in progress

0

9

Search operation is under way

0

A

Playback operation is under way

0

B

Pause operation is under way

0

C

Playback manual search operation is under way

0

D

Pause manual search operation is under way

0

E

—

The 7th and 8th digit from the left indicates:
The 7th and 8th digit from the left indicates which operation in
progress when a trouble occurred. (Step of each processing of the
5th and 6th digits is indicated)

18

This mode is used to check the fluorescent indicator tube, LEDs, phones jack, keys and control knobs.
Procedure:

1. Press the

I

/1

button to turn the power on.

2. Press three buttons of

x

, [SURROUND] and [TUNER] simultaneously.

3. All segments on the fluorescent indicator tube and all LEDs light up.
4. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to enter the key routes check mode.
5. In this mode, each time any button is pressed, it displays key route and key number of the button. (Refer to following table)

Example: [DISPLAY] button

: “KEY 10000”

[TUNER/BAND] button

: “KEY 40000”

[ILLUMINATION] button : “KEY 01000”
[CD-TAPE SYNC] button : “KEY 00070”

6. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to enter the key check mode.
7. In this mode, each time any button is pressed, “KEYCONT” value increases. However, once a button is pressed, it is no longer

taken into account. (Maximum numbers are GT22: 29, GT44: 30, GT55: 39)

8. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to enter the phones jack check mode.
9. In this mode, “H_P ON” is displayed when phones jack is inserted, and “H_P OFF” is displayed when phones jack is pulled out.
10. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to enter the volume check mode and display “VOLUME

FLAT”.

11. In this mode, “VOLUME UP” is displayed when [VOLUME] knob is turned clockwise, and “VOLUME DOWN” is displayed

when [VOLUME] knob is turned counterclockwise.

12. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to enter the jog check mode and display “JOG FLAT”.
13. In this mode, “JOG UP” is displayed when [OPERATION DIAL] knob is turned clockwise, and “JOG DOWN” is displayed when

[OPERATION DIAL] knob is turned counterclockwise.

14. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to release the Panel Test mode.

Key

Key Routes

No.

KEY0

KEY1

KEY2

KEY3

KEY4 (GT55 only)

1

DISPLAY

ILLUMINATION

ENTER

DISC 1

+

2

POWER

ERASE

RETURN

DISC 2

ENTER(PEQ)

3

CD

PRESET EQ

FOLDER +

DISC 3

–

4

TUNER/BAND

GROOVE

TUNING +

EX-CHANGE/

GUITAR

DISC SKIP

5

TAPE A/B

SURROUND

PLAY/PAUSE

STOP

FOCUS (GUITAR)

6

AUDIO

EQ BAND (GT22/GT44)

TUNING –

CD-USB SYNC/REC1

FOCUS (VOCAL)

PLAY MODE (GT55)

7

USB

FOLDER –

CD-TAPE SYNC

VOCAL

8

SUBWOOFER

OPEN/CLOSE

TAPE REC

BASS

(GT44/GT55)

PAUSE/START

9

FOCUS (BASS)

19

1. Clean the following parts with a denatured-alcohol-moistened

swab :

record/playback head

pinch roller

erase head

rubber belts

capstan

idlers

2. Demagnetize the record/playback head with a head

demagnetizer. (Do not bring the head magnetizer close to the
erase head.)

3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy suitable locking compound to

the parts adjusted.

5. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.

Mode

Torque Meter

Meter Reading

2.6 – 6.9 mN

⋅

m

FWD

CQ-102C

(30 – 70 g

⋅

cm)

(0.41 – 0.97 oz

⋅

inch)

FWD

0.15 – 0.59 mN

⋅

m

Back Tension

CQ-102C

(1.5 – 6.0 g

⋅

cm)

(0.021 – 0.083 oz

⋅

inch)

5.4 – 16.7 mN

⋅

m

FF/REW

CQ-201B

55 – 170 g

⋅

cm)

0.76 – 2.35 oz

⋅

inch)

Mode

Tension Meter

Meter Reading

FWD

CQ-403A

more than 100 g

(more than 3.53 oz)

20

3. Mode:  Playback

set

test tape
P-4-A063
(6.3 kHz, –10 dB)

oscilloscope

V

H

waveform of oscilloscope

0

°

+45

°

–45

°

+90

°

+135

°

+180

°

good

wrong

MIC board
PHONES jack
(J803)

2. Turn the adjustment screw and check output peaks. If the peaks

do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.

Screw
position

L-CH
peak

within
1dB

Output
level

L-CH
peak

R-CH
peak

within
1dB

Screw
position

R-CH
peak

0 dB=0.775 V

1. Demagnetize the record/playback head with a head

demagnetizer.

2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the

parts adjust.

Perform this adjustment for both decks.

1. Mode:  Playback

Tape

Signal

Used for

P-4-A063

6.3 kHz, -10 dB

Azimuth Adjustment

4. After the adjustments, apply suitable locking compound to

the pats adjusted.

Adjustment Location: Playback Head (DECK-A)

Record/Playback/Erase Head (DECK-B)