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4.  When the [VOLUME] knob is turned clockwise even slightly, 

the sound volume increases to its maximum and a message 
“VOLUME MAX” appears on the fl uorescent indicator tube.

5.  When the [VOLUME] knob is turned counterclockwise even 

slightly, the sound volume decreases to its minimum and a 
message “VOLUME MIN” appears on the fl uorescent indica-
tor tube.

• 

Tape function (only for HCD-GTR6B/GTR8B)

1.  Inserted a tape in deck. The function is changed to VIDEO 

automatically when the recording is started by pressing [REC 
TO TAPE] then press [ENTER] button. During recording the 
ALC (Automatic Logic Control) is turned on.

2.  During recording, press ALBUM - will stop the recording 

and the function is changed to TAPE and rewind the tape in 
Deck until the recording start position and playback of the 
tape in Deck is started.

• 

To release from MC Test mode

1.  To release from this mode, press [POWER] button.
2.  The cold reset is enforced at the same time.

•  The cold reset clears all data including preset data stored in the 

RAM to initial conditions. Execute this mode when returning the 
set to the customer.

Procedure:
1.  Press [x] button, [ENTER] button, and [POWER] button si-

multaneously.

2. The 

fl uorescent indicator tube becomes blank for a while, and 

the set is reset.

•  This mode is used to switch ON and OFF the VACS (Variable 

Attenuation Control System).

Procedure:
1.  Press [POWER] button to turn the set ON.
2.  Press [x] button and [OPTIONS] button simultaneously. The 

message “VACS OFF” or “VACS ON” appears on the fl uores-
cent indicator tube.

•  The step interval of AM channels can be toggled between 9 KHz 

and 10 KHz. This mode is not available for Saudi Arabian mod-
els.

Procedure:
1.  Press [POWER] button to turn the set ON.
2.  Press [TUNER/BAND] / [TUNER AM] button to select the 

“AM”.

3.  Press [POWER] button to turn the set OFF.
4.  Press [ENTER] button and [POWER] button simultaneously. 

The system will turn ON automatically. The message “AM 
9K STEP” or “AM 10K STEP” appears on the fl uorescent in-
dicator tube and thus the channel step is changed.

•  This mode is used to check the fl uorescent indicator tube, LEDs, 

keys, VOLUME jog, OPERATION DIAL jog, model, destination 
and software version.

Procedure:
1.  Press [x] button, [ENTER] button and [DISC 2] button si-

multaneously.

2.  All LEDs and segments in fl uorescent indicator tube are light-

ed up.  All LEDs are lighted up in red color except for [

 B] 

LED where the LED is lighted up in red and blue color,

 [

 A] LED in blue color and SUBWOOFER ON/OFF in 

green color.

3.  When you want to enter to the model version and destination 

display mode, press [DISC 1] button. The model information 
appears on the fl uorescent indicator tube.  

4.  Each time [DISC 1] button is pressed, the display changes to 

display software version and date of the software creation. 
The sequence is model destination, SC, MDK, GC, SYS, CD, 
CDMA, CDMB, ST, TC, TA, TM and MTR in this order, and 
returns to the model destination display.

5.  Press [DISC 2] button, the key check mode is activated.
6.   In the key check mode, the fl uorescent indicator tube displays 

“K  0  J0  V0”.

 

Turn the [OPERATIONAL DIAL] clockwise; ”J” value in-
creases by one. Turn the [OPERATIONAL DIAL] counter-
clockwise; “J” value decreases by one. Each time a button is 
pressed, “K” value increases. Press other keys on main unit 
to check whether the key is detected. However, once a button 
has been pressed, it is no longer taken into account. 

  

“V” value increases in the manner of 0,1, 2, 3 ... if [VOLUME] 
knob is turned clockwise, or it decreases in the manner of 0, 9, 
8, 7  ... if [VOLUME] knob is turned counterclockwise.

7.  When [DISC SKIP/EX-CHANGE] button is pressed after 

all LEDs and segments in fl uorescent indicator tube light 
up, alternate segments in fl uorescent indicator tube and LED 
would light up. If you press [DISC SKIP/EX-CHANGE] but-
ton again, another half of alternate segments in fl uorescent 
indicator tube and LED would light up. Press [DISC SKIP/
EX-CHANGE] button again would cause all segments will 
lights off and press [DISC SKIP/EX-CHANGE] button again  
all segments will lights up.

8.  To release from this mode, press three buttons in the same 

manner as step 1, or disconnect the power cord.

•  This mode is used to check operations of the respective sections 

of Amplifi er and Tape.

Procedure:
•  To enter MC Test Mode
1.  Press [x] button, [ENTER] button and [DISC 3] button si-

multaneously.

2.  The CD number indicators fl ash on the fl uorescent indicator 

tube. The function is changed to VIDEO.

• 

Check of Amplifi er

1.   Press  [EQ BAND] button repeatedly until a message “GEQ 

MAX” appears on the fl uorescent indicator tube. GEQ in-
creases to its maximum.

2.  Press  [EQ BAND] button repeatedly until a message “GEQ 

MIN” appears on the fl uorescent indicator tube. GEQ de-
creases to its minimum.

3.  Press  [EQ BAND] button repeatedly until a message “GEQ 

FLAT” appears on the fl uorescent indicator tube. GEQ is set 
to fl at.

•  This mode moves the optical pick-up to the position durable to 

vibration and clears all data including preset data stored in the 
RAM to initial conditions. Use this mode when returning the set 
to the customer after repair.

Procedure:
1.  Press [POWER] button to turn the set ON.
2.  Select CD function and waiting until CD no disc confi rm.
3.  Press [x] button, [SOUND FLASH] button and [POWER] 

button simultaneously. The set will power off automatically.

4.  After the “STANDBY” blinking display fi nishes, a message 
      “MECHA LOCK” is displayed on the fl uorescent indicator 

tube and the CD ship mode is set.

5.  Then AC power OFF.

•  This mode moves the optical pick-up to the position durable to 

vibration. Use this mode when returning the set to the customer 
after repair.

Procedure:
1.  Press [POWER] button to turn the set ON.
2.  Select CD function.
3.  Press [CD] button and [POWER] button simultaneously. The 

set will power off automatically.

4.  After the “STANDBY” blinking display fi nishes, a   message           
 

“MECHA LOCK” is displayed on the fl uorescent indicator 
tube and the CD ship mode is set.

5.  The AC power OFF.

•  This mode let you lock the disc tray. When this mode is activated, 

the disc tray will not open when [OPEN/CLOSE] button or [EX-
CHANGE] button is pressed. The message “LOCKED” will be 
displayed on the fl uorescent indicator tube.

Procedure:
1.  Press [POWER] button to turn the set ON.
2.  Select CD function.
3.  Press [x] button and [OPEN/CLOSE] button simultaneously 

and hold down until “LOCKED” or “UNLOCKED” dis-
played on the fl uorescent indicator tube (around 5 seconds).

•  This mode prevents set from power off automatically when TCM 

is not connected. Therefore, measurements can be done even when 
TCM is not connected.

 

Procedure:
1.  When the system in turned off, press [EQ BAND/MEMORY] 

button, [STOP] button and [POWER] button simultaneously. 
The set will power on automatically.

2.  The message “TCM OFFLINE” will be displayed on the fl uo-

rescent indicator tube.

•  This mode is used to check the VACS level.

Procedure:
1.  Press [POWER] button to turn on the system.
2.  Press [x] button, [SOUND FLASH] button and [DISC SKIP/

EX-CHANGE] button simultaneously.

3.  The VACS Level Display, the fl uorescent indicator tube dis-

plays  “VATB F APC”. “V” represent VACS , A represent 
VACS level which is triggered by signal level, “T” represent 
Thermal VACS NEO, B represent VACS level which is trig-
gered by temperature, “F” represent FAN is triggered by 
software to turn in to high speed, “AP” represent APVACS 
(Abuse Protection VACS) and “C” represent  APVACS level 
which is triggered.

•  This mode use in factory to perform the non-stop aging mode for 

meter device.

Procedure:
1.  Press [POWER] button to turn on the system.
2.  Press [EQ BAND/MEMORY] button and [METER MODE] 

button simultaneously.

•  This mode is used to check the number of trigger for Meter Pointer 

to initial switch and end switch. The switches will trigger during 
meter initialize in AC supply on condition.

Procedure:
1.  Press [POWER] button to turn on the system.
2.  Press [x] button, [EQ BAND/MEMORY] button and [ME-

TER MODE] button simultaneously.

The Meter Error Code will appear on the fl uorescent indicator 
tube displays

• Display

 

Display on fl uorescent indicator tube,

    

IxxxxxMyyyyy

 

Ixxxxx = total number of Initial Switch touch by Meter 
pointer. The Initial Switch will touch twice during meter 
initialized process.

 

Myyyyy = total number of End Switch touch by Meter 
pointer. The End Switch will touch one times during meter 
initialized process.

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

swab:

 

record/playback heads 

pinch rollers

 

erase head 

rubber belts

 capstan 

idlers

2.  Demagnetize the record/playback head with a head demagne-

tizer.

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

parts adjusted.

5.  The adjustments should be performed with the rated power 

supply voltage unless otherwise noted.

   

 

2.9m N • m to 6.9m N • m

  FWD 

CQ-102C 

30 to 70 g • cm

   

 

(0.42 – 0.97 oz • inch)

  FWD 

 

0.15m N • m to 0.59m N • m

  back tension 

CQ-102C 

2 to 6 g • cm

   

 

(0.03 – 0.08 oz • inch)

   

 

 2.9m N • m to 6.9m N • m

  REV 

CQ-102RC 

30 to 70 g • cm

   

 

(0.42 – 0.97 oz • inch)

   

 

0.15m N • m to 0.59m N • m

 

REV

 

CQ-102RC 

2 to 6 g • cm

  back tension

 

 

(0.03 – 0.08 oz • inch)

   

 

4.8m N • m to 16.7m N • m

  FF/REW 

CQ-201B 

49 to 170 g • cm

 

 

 

(0.68 – 2.36 oz • inch)

 

Mode 

Torque meter 

Meter reading

1.  Turn the power on.
2.  Input the following signal from Signal Generator to FM an-

tenna input directly.

  

*  Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
 

Deviation     : 75 kHz

 

Modulation  : 1 kHz

 

ANT input   : 35 dBu (EMF)

 

Note: Please use 75 ohm “coaxial cable” to connect SG and the set. You 

cannot use video cable for checking.

 

Please use SG whose output impedance is 75 ohm. 

  

3.  Set to FM tuner function and tune A, B and C signals.
4. Confi rm “TUNED” is lit on the display for A, B and C sig-

nals.

  

The mark of “TUNED” means “The selected station signal is 
received in good condition.”

7)

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.

4.  The adjustments should be performed with the rated power 

supply voltage unless otherwise noted.

5.  The adjustments should be performed in the order given in this 

service manual.  (As a general rule, playback circuit adjust-
ment should be completed before performing recording circuit 
adjustment.)

6.  The adjustments should be performed for both L-CH and R-

CH.

7.  Switches and controls should be set as follows unless otherwise 

specifi ed. 

•  Test Tape

Note:  Perform this adjustments for Single deck 

1.  Mode:  Playback

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.

 

P-4-A100 

10 kHz, –10 dB 

Azimuth Adjustment

+

0 dB = 1 µV

0 dB = 0.775 V

(only for HCD-GTR6B/GTR8B)