DOWNLOAD Sony HCD-ZTX7 / LBT-ZTX7 Service Manual ↓ Size: 5.68 MB | Pages: 100 in PDF or view online for FREE

Remove the two solderings of motor.

MOTOR (TB) board

table motor assy (M741)

two screws

     (+BTTP (M2.6))

stopper

stopper

table

 wire (flat type) (5 core)

    (CN742)

Remove the two solderings of motor.

MOTOR (LD) board

belt (loading)

loading motor assy (M751)

two screws

     (+BTTP (M2.6))

3. Press [EQ BAND/MEMORY] button repeatedly until a message 

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

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

slightly, the sound volume increases to its maximum and a mes-
sage “VOLUME MAX” appears on the fl uorescent indicator 
tube.

5. When 

the [MASTER VOLUME] knob is turned counter-clock-

wise even slightly, the sound volume decreases to its minimum 
and a message “VOLUME MIN” appears on the fl uorescent 
indicator tube.

* Tape function
1.  Insert a tape in deck. The function is changed to VIDEO auto-

matically when the recording is started by pressing [REC TO 
TAPE] then press [ENTER] button.

2.   During recording, press [m] button 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 [?/1] button.
2.  The cold reset is enforced at the same time.

[COLD RESET]
•  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, [DELAY] button and [?

/1] button

 simultaneously.
2. The 

fl uorescent indicator tube becomes blank for while, and the 

set is reset.

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

Attenuation Control System).

Procedure:
1. Press [?

/1] button to turn on the system.

2. Press [x] button and [OPTIONS] button simultaneously. The 

message “VACS OFF” or “VACS ON” appears on the fl uorescent 
indicator tube.

[TUNER STEP CHANGE]
•  The step interval of AM channels can be toggled between 9 kHz 

and 10 kHz.

Procedure:
1. Press [?

/1] button to turn on the system.

2.  Press [TUNER/BAND] button to select the “AM”.
3. Press [?

/1] button to turn off the system.

4.  Press [ENTER] button and [?

/1] button simultaneously. The 

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

[GC TEST MODE]
•  This mode is used to check the fl uorescent indicator tube, LEDs, 

buttons, MASTER VOLUME knob, OPERATION DIAL knob, 
model, destination, software version.

Procedure:
1. Press 

[x] button, [DELAY] button and [DISC 2] button

 simultaneously.
2.  All LEDs and segments in fl uorescent indicator tube are lighted 

up.

 

All LEDs are lighted up in red color except for [

] LED where 

the LED is lighted up in red and blue 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 SC version, GC version, SYS version, CD version, 
CDDM version, CDMA version, CDMB version, BDA version, 
BDB version, ST version, TC version, TA version, TM version, 
MM1 version, MM2 version and MTR version in this order, and 
returns to the model version 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 increas-
es by one. Turn the [OPERATIONAL DIAL] counterclockwise; 
“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 [MASTER 
VOLUME] knob is turned clockwise, or it decreases in the man-
ner of 0, 9, 8, 7  ... if [MASTER 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, al-
ternate segments in fl uorescent indicator tube and LED would 
light up. If you press [DISC SKIP/EX-CHANGE] button again, 
another half of alternate segments in fl uorescent indicator tube 
and LEDs would light up.  Press [DISC SKIP/EX-CHANGE] 
button would cause all segments in fl uorescent indicator tube 
and LED turns off. Pressing [DISC SKIP/EX-CHANGE] button 
again would cause all LED and segments lights up.

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

ner as step 1, or disconnect the power cord.

[MC TEST MODE]
•  This mode is used to check operations of the respective sections 

of Amplifi er, Tuner and Tape.

Procedure:
•  To enter MC Test Mode
1. Press 

[x] button,[DELAY] button and [DISC 3] button

 simultaneously.
2.  The CD ring indicators fl ash on the fl uorescent indicator tube. 

The function is changed to VIDEO.

* Check of Amplifi er
1.   Press [EQ BAND/MEMORY] button repeatedly until a message 

“GEQ MAX” appears on the fl uorescent indicator tube. GEQ 
increases to its maximum.

2. Press [EQ BAND/MEMORY] button repeatedly until a message 

“GEQ MIN” appears on the fl uorescent indicator tube. GEQ 
decreases to its minimum.

[CD SERVICE MODE]
•  This mode let you move the CD sled motor freely. Use this mode 

when you want to clean the optical pick-up.

Procedure:
1. Press [?

/1] button to turn on the system.

2. Select 

CD 

function.

3. Press [x] button, [DELAY] button and [OPEN/CLOSE] button 

simultaneously.

4.  The CD service mode is activated. The message “SERVICE 

MODE” appears on the fl uorescent indicator tube.

5.  With the CD in stop status, press [M] to move the optical pick-

up to outside track, or turn [m] to move to inside track. The 
message “SLED OUT” or “SLED IN” appears on the fl uorescent 
indicator tube.

6.  To turn on or off the laser, press [>] button. The message “LD 

ON” or “LD OFF” appears on the fl uorescent indicator tube.

7.  To release from this mode, press [?

/1] button to turn off the 

system.

[CD AGING MODE]
•  This mode can be used for operation check of CD section. If 

an error occurs, the aging operation would stops and the status 
is displayed. If there were no error occurs, the aging operation 
would continue repeatedly.

Procedure:
1. Press [?

/1] button to turn on the system.

2. Select 

CD 

function.

3.  Load three discs on disc tray.
4.  Press [PLAY MODE/TUNING MODE] button on the remote 

control repeatedly to select the “ALL DISCS” mode, and press 
the [REPEAT/FM MODE] button on the remode control repeat-
edly to select repeat mode off.

5. Press  [x]  button, [DELAY] button and [DISC SKIP/EX-

CHANGE] button simultaneously.

6.  Aging operation is started.
7.  To release from this mode, press [?

/1] button or disconnect the 

power cord to turn the power OFF.

DISC CHUCKING

TOC READING

PLAY FIRST TRACK FOR 2

SECONDS

OPEN THE DISC TRAY

DISC SKIP

CLOSE THE DISC TRAY

START

PLAY LAST TRACK FOR 2

SECONDS

EX-CHANGE OPEN/CLOSE

CHANGE THE NEXT DISC

[CD ERROR CODE MODE]
•  Display the CD error code when an error occurred.

Procedure:
1. Press [x] button, [DELAY] button and [DISC 1] button
 

simultaneously to enter the error code display mode.

2. The 

fl uorescent indicator tube display the number of total er-

ror.

3. Each 

time [m] button and [M] button are turned, display 

change as below.

  %% 

: The process when trouble occurs

   

  01 

: Process ejecting DISC

   

  02 

: Process waiting for inserting DISC

   

  03 

: Process sending request to insert a disc to upper

   

 

  layer.

   

  04 

: Process sending request to eject a disc to upper

   

 

  layer.

   

  05 

: Process pulling a DISC in.

   

  06 

: Chucking process

   

  07 

: Re-chucking process

   

  08 

: Process cancelling chucking

  && 

: The operation when trouble occurs

   

  00 

: Waiting for operation.

   

  10/11/12/13: During eject operation

   

  20 

: While pulling a disc in

   

  30 

: While cancelling chucking

   

  40/41/42/43: During eject operation due to error.

  0000  : Not used (Value is fi xed to 0000).

•  Display of BD error. It is shown with “D” and 11 digits 

number.

DISPLAY OF

TOTAL ERROR

DISPLAY OF

MECHANICAL

ERRORS

DISPLAY OF

NO DISC

ERRORS

[.]  BUTTON

[

N]  BUTTON

[

N]

[

N]

[.]  BUTTON

[.]

[.]

[

N]  BUTTON

4.  To clear the error record, operate the cold reset. (Refer to the 

“MC COLD RESET”.)

5.  To release from this mode, press the [?

/1] button or disconnect 

the power plug to turn the power OFF.

•  Display of total error

  Em**  : The number of times for CDM (mechanical) errors.
  Ed**  : The number of times for BD error (after chucking the
   

  disc.).

•  Display of CDM (mechanical) error. It is show with “M” and 

11 digit number.

Em**Ed**

M*$$%%&&0–
000

  M* 

: The number of history error for mechanical. (“0” is

   

  latest one) (Turn [>] button to display next error.)

  $$ 

: Mechanical errors occur in the operation.

   

  FF 

: Mechanical error during normal operation.

   

  Other : Mechanical error during initializing operation.

D*$$%%&&#–
#00

  D* 

: The number of error history (“0” is latest one)

   

  (Press [>] button to display next error.)

  $$ 

: The detail of trouble

   

  01 

: Can not focus

   

  02 

: GFS error

   

  03 

: Start-up time over

   

  04 

: Continuously out of focus

   

  05 

: Q code is not input for certain time

   

  06 

: Tracking on is impossible

   

  07 

: Blank disc

  %% 

: The process when trouble occurs

   

  01 

: While SHIP process is performed

   

  02 

: While POWER OFF is processed

   

  03 

: While INITIALIZE (POWER ON) is processed.

   

  04 

: While oscillation stops

   

  05 

: From stopping oscillation to start oscillation

   

  06 

: During stop

   

  07 

: During STOP operation

   

  08 

: While start-up is processed

   

  09 

: While TOC reading is processed

   

  0a 

: During search operation

   

  0b 

: During PLAY operation

   

  0c 

: During pause operation

   

  0d 

: During PLAY manual search operation

   

  0e 

: During PAUSE manual search operation

  && 

: Processing operation when trouble occurs

   

  Show each STEP mentioned in %% digits.

  ## 

: Disc speed when trouble occurs.

   

  01 

: x1 speed

   

  02 

: x2 speed (for models which support x2 speed)

   

  04 

: x4 speed

  00 

: Not used (value is fi xed to 00).