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3

  It indicates the on-going processing of optical pick-up system 

(= optical unit + BD board) when the trouble has occurred.
01:   The CD SHIP mode processing is in progress.
02:   The POWER OFF processing is in progress.
03:   The INITIALIZE processing is in progress.
04:   The optical pick-up system (= optical unit + CD board) is 

in the stop state. 

05:   The STOP operation is in progress.
06:   The startup processing is in progress.
07:   The TOC read-in processing is in progress.
08:   The SEARCH operation is in progress.
09:   The PLAY operation is in progress.
0A:  The PAUSE operation is in progress.
0B:  The PLAY – MANUAL SEARCH operation is in prog-

ress.

0C:  The PAUSE – MANUAL SEARCH operation is in prog-

ress.

4

  It indicates the operation that is being processed when the trou-

ble has occurred.

 

It indicates the step number of each processing specifi ed by 3. 
Because the numbers of steps are different in each processing, 
this number is different in each processing. 

Note 1: Do not enter the this mode while any other testmode is in prog-

ress.

Note 2: Do not enter any other test mode while the this mode is in prog-

ress.

Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press the [FUNCTION] button to select CD function
3.  Press three buttons of [CD N], [FUNCTION] and [DISPLAY] 

simultaneously.

4.  It enters the CD factory mode and displays the following mes-

sage.

  –X1ON   

 

 S character mode setting

 

 Tracking servo setting

 

 RF gain setting

Key Operation:
[DISPLAY]:
 

The display changes in the following order when-
ever the button is pressed.

 

(Initial display)

fcsAG ** (**: Focus AGC value)

trkAG ** (**: Track AGC value)

RF-AG ** (**: RF AGC value)

[DSGX]:
 

RF gain setting changes whenever the button is 
pressed.

 

“–”: No gain fi xation.

 

“AL”: Fix to the gain for AL disc.

 

“RW”: Fix to the gain for RW disc.

[EQ]:
 

Tracking servo setting changes whenever the but-
ton is pressed.

 

“ON”: Tracking servo ON.

 

“OFF”: Tracking servo OFF.

[FUNCTION]:
 

S character mode setting changes whenever the but-
ton is pressed.

 

“  ”: S character mode OFF.

 

“S”: S character mode ON.

5.  To release from this mode, press the [

?/1

] button to turn the 

power off.

PRECAUTION
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 demag-

netizer. (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.

• Torque 

FWD

CQ-102AS

2.0 – 8.0 mN • m 

(20 to 80 g • cm)

(0.28 – 1.12 oz • inch)

FWD
Back Tension

CQ-102C

0.15 – 0.6 mN • m 

(1.5 to 6 g • cm)

(0.021 – 0.083 oz • inch)

FF

CQ-201AS

5 – 17.7 mN • m 

(50 to 177 g • cm)

(0.7 – 2.48 oz • inch)

REV

CQ-201B

5 – 17.7 mN • m 

(50 to 177 g • cm)

(0.7 – 2.48 oz • inch)

•  Tape Tension Measurement

FWD

CQ-403A

more than 80 g

(more than 2.82 oz)

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

tizer. 

2.  Do not use a magnetized screwdriver for the adjustments.

P-4-A063

6.3 kHz, -10 dB

Azimuth Adjustment

Note: Perform this adjustments for both decks.

Procedure:
1. Mode: 

Playback

−10 dB)

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.

3.  Mode:  Playback

−10 dB)

°

° 135° 180°

4.  After the adjustments, apply suitable locking compound to the 

pats adjusted.

0 dB = 0.775V

Adjustment Location: Record/Playback/Erase Head

Note:
1.  CD Block is basically constructed to operate without adjustment.
2.  Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicat-

ed.

3.  Use an oscilloscope with more than 10 M

Ω impedance.

4.  Clean the object lens by an applicator with neutral detergent when the 

signal level is low than specifi ed value with the following checks.

5.  Check the focus bias check when optical pick-up block is replaced.

Procedure :
1.  Connect the oscilloscope to TP121 (RFI) and TP124 (VC) on 

the CD board.

2. Press 

the 

[

?/1

] button to turn the power on, and press the [

Z

] 

button to open the CD disc tray.

3.  Set disc (YEDS-18) on the tray and press the [CD 

N] button 

to playback.

4. Confi rm that oscilloscope waveform is as shown in the fi gure 

below (eye pattern).

 

A good eye pattern means that the diamond shape (

◊) in the 

center of the waveform can be clearly distinguished.

Adjustment Location: MAIN board (See page 21)

[AM]
Setting:
FUNCTION: AM

Ω

[FM]
Setting:
FUNCTION: FM

Ω

Ω

IC801 pin XL (TUNER VT)

•  Repeat the procedures in each adjustment several times.

0 dB = 1 

μV

Adjustment Part

Frequency Display

Reading on Digital 

Voltmeter

L801

530 kHz

1.5 ± 0.1 V

Confi rmation

1,710 kHz

8 ± 0.5 V

Adjust for a maximum reading on level meter

L805

531 kHz

Adjustment Part

Frequency Display

Reading on Digital 

Voltmeter

L803

87.5 kHz

1.75 ± 0.1 V

Confi rmation

108 kHz

6.2 ± 0.5 V

Adjust for a minimum reading on level meter

L804

98 MHz

FM  DETECTOR  ADJUSTMENT
Setting:
FUNCTION: FM

IC801 pin RT

1.  Turn the set to 98 MHz.
2.  Adjust L802 so that modulation distortion may become the 

best in the vicinity of the maximum value where the tuner out 
level becomes –15 dBuV or more.