DOWNLOAD Sony HCD-LX7 / HCD-LX8 / LBT-LX7 / LBT-LX8 Service Manual ↓ Size: 7.98 MB | Pages: 77 in PDF or view online for FREE

5

This unit is provided with a simple CD-TEXT display function.
The CD-TEXT contents of 20 tracks are displayed on the fluorescent display tube.
Since the function is simple, some special characters may not be displayed, or may be displayed as other characters.

• 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 three buttons  c/CLOCK SET  ,  ENTER  , and  "/1  simultaneously.
2. “COLD RESET” is displayed on the fluorescent display tube and reset is executed.

• This mode moves the pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.
Procedure:
1. Press  "/1  button to turn the set ON.
2. Press  LOOP  button and  "/1  button simultaneously.
3. A message “LOCK” is displayed on the fluorescent indicator tube, and the CD delivery mode is set.

• This mode resets the set with the preset data kept stored in the memory.  The hot reset mode functions same as if the power cord is plugged

in and out.

Procedure:
1. Press three buttons  c/CLOCK SET  ,  ENTER  , and  DISC 1  simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset.

• This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the pick-up.
Procedure:
1. Press  "/1  button to turn the set ON.
2. Press three buttons  c/CLOCK SET  ,  ENTER  , and  DISC 5  simultaneously.
3. The Sled Servo mode is selected, if “CD” is blanking on the fluorescent indicator tube.
4. With the CD in stop status, When the  . AMS >  knob is rotated in the clockwise direction, the pick-up moves outside. When

rotated counterclockwise, it moves inside.

5. To exit from this mode, perform as follows:

1) Move the pick-up to the most inside track.
2) Execute MC cold reset. (Press the three buttons  c/CLOCK SET  ,  ENTER  , and  "/1  button simultaneously.)

Note:
• Always move the pick-up to most inside track when exiting from this mode.  Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be chipped.

• A step of AM channels can be changed over between 9kHz and 10kHz.
Procedure:
1. Press  "/1  button to turn the set ON.
2. Select the function “TUNER”, and press  TUNER/BAND  button to select the BAND “AM”.
3. Press  "/1  button to turn the set OFF.
4. Press  ENTER  and  "/1  buttons simultaneously, and the display of  fluorescent indicator tube changes to “AM 9k STEP” or “AM 10k

STEP”, and thus the channel step is changed over.

Procedure:
1. Press three buttons  c/CLOCK SET  ,  ENTER  , and  DISC 2  simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.

Press  DISC 2  button, and the key check mode is activated.

3. In the key check mode, the fluorescent indicator tube displays “K @ V0 J0”.  Each time a button is pressed, “K”value increases. However,

once a button is pressed, it is no longer taken into account.
“J” Value increases like 1, 2, 3 ... if rotating  . AMS >  knob in “+”  direction, or it decreases like 0, 9, 8 ... if rotating in “-”
direction.
“V” Value increases like 1, 2, 3 ... if rotating  VOLUME  knob in “+”  direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction.

4. To exit from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.

6

• This mode is used for checking the AMS operations of the tape deck.

JIG
7-819-039-12 Alignment tape, AMS-110A

Procedure:
1. Press the  "/1  button to turn the set ON.
2. Set the tape (AMS-110A).
3. Press the three buttons  c/CLOCK SET  ,  ENTER  , and  DISC 3  button simultaneously.
4. “TEST MODE” is displayed on the fluorescent display tube.
5. Press the  FUNCTION  button and switch the function to the deck with the tape (AMS-110A).
6. Press the  CD SYNC  button. “AMS CHECK” is displayed on the fluorescent display tube and the tape is rewound.
7. AMS starts in the normal direction. If the AMS count is 2 at shut down, proceed to step 8.

“NG” is displayed at other times, and the deck stops.

8. AMS starts in the opposite direction. If the AMS count is 2 at shut down again, “OK” is displayed.

“NG” is displayed at other times.

During the aging mode, both the CD player and tape deck are executed together.
• If an error occurs:
Aging stops, and the error state is displayed on the fluorescent display tube.
• If no error occurs:
Aging is repeated.

Procedure:
1. Press the  "/1  button to turn the set ON.
2. Load 10 minute tapes with unbent rec-proof tabs in decks A and B.
3. Set CDs on the DISC 1 and DISC 4 tables.
4. Set the CD mode REPEAT to OFF and PLAY MODE to ALL DISCS.

(Press the  PLAY MODE  and  REPEAT  buttons to set these modes.)

5. Press the  FUNCTION  button to switch the function to “CD”.
6. Press the three buttons   c/CLOCK SET  ,  ENTER  , and  DISC 4  button simultaneously.
7. Aging starts.
8. To end aging, press the  "/1  button to turn the set OFF.

Aging Sequence:
Aging is performed in the following sequence.

• Tape Deck
1. The tape in deck A is rewound. “TAPE A AG-1” is displayed.
2. The FWD side of deck A is played for two minutes.

“TAPE A AG-2” is displayed.

3. The tape in deck A is fast forwarded. “TAPE A AG-3” is displayed. Fast forward is carried out for 20 seconds or to the tape end.
4. The RVS side of deck A is played for two minutes.

“TAPE A AG-4” is displayed.

5. The tape in deck A is rewound. “TAPE A AG-5” is displayed.
6. The FWD side of deck B is played for two minutes.

“TAPE B AG-2” is displayed.

7. The tape in deck B is fast forwarded. “TAPE B AG-3” is displayed. Fast forward is carried out for 20 seconds or to the tape end.
8. The RVS side of deck B is played for two minutes.

“TAPE B AG-4” is displayed.

9. The tape in deck A is rewound. “TAPE A AG-5” is displayed.
10. Repeated from step 2.

7

• CD
1. The tray rotates.
2. DISC 1 is chucked.
3. The TOC is read.
4. The first track is played for 2 seconds.
5. The last track is played for 2 seconds.
6. The tray rotates.
7. DISC 4 is chucked.
8. The TOC is read.
9. The first track is played for 2 seconds.
10. The last track is played for 2 seconds.
11. Repeated from step 1.

• Display when ended abnormally
When the tape deck is abnormal:

The state when ended abnormally is displayed.
The contents of display are the same as that during aging.

A message indicating that errors such as “CD MEC ERR” have occurred.
Check the error contents in the following error history display mode.

Mode which enables the history of error occurring in the CD player to be checked.
Execute this mode after ending the aging mode.

Procedure:
1. Press the  "/1  button to turn the set ON.
2. Press the three buttons   c/CLOCK SET  ,  ENTER  , and  CD SYNC  simultaneously.
3. A message such as “EMC@@EDC**” is displayed.

@@ : Number of mechanical errors (Up to three past errors)
**

: Number of errors (NO DISC ERROR) which occurs after chucking (Up to three past errors)

4. When checking the history of mechanical errors, press the  PLAY MODE  button. When checking errors after chucking, press the

REPEAT  button to switch the display.

5. Press the  "/1  button to end and turn the set OFF.
6. To erase the error history, perform COLD reset.

(Press the three buttons   c/CLOCK SET  ,  ENTER  , and  DISC 1  simultaneously.

• Viewing the mechanical error history display

(Switch the history by pressing the  PLAY MODE  button.)

8

Display
  E@@M#*****

@@ : Error number. 00 is the newest.

#

: Operating state of table

0

: Currently in the INITIAL mode

7

: Currently rotating to the right

8

: Currently rotating to the left

A

: Currently chucking down

B

: Currently chucking up

*

: Invalid

• Viewing the NO DISC ERROR history display

(Switch the history by pressing the  REPEAT  button.)

Display
  E@@D##$$%*

@@ : Error number. 00 is the newest

##

: Error contents

01: Focus error
02: GFS error
03: Setup error

$$

: Retries

00: NO DISC is determined without attempting chucking retry
02: NO DISC is determined after chucking retry.

%

: State when determined as NO DISC

1

: When stopped

2

: At setup

3

: At TOC READ

4

: When accessing

5

: When playing

6

: When pausing

7

: When manual searching (during play)

8

: When manual searching (during pausing)

*

: Invalid