DOWNLOAD Sony HCD-EC59 / HCD-EC590 / MHC-EC59 / MHC-EC590 Service Manual ↓ Size: 2.6 MB | Pages: 44 in PDF or view online for FREE

5 flexible flat cable (5 core) 

2 flexible flat cable

1 flexible flat cable (25 core) 

8 two screws

u 10)

7 fan motor connector

9 lead wire

6 connector

4 connector

3 connector

8 screw

u 10)

8 screw

u 10)

0 MAIN board

Note 1: This illustration sees the top panel assy from base unit side.

1 four floating screws

4 two insulators

3 two insulators

5 four claws

6 cover (D1)

7 base unit

2

Note 2: Four claws might be fixed by bond.
 

Please fix four claws by the bond

 

when you replace the cover (D1).

3 wire (flat type) (16 core) (optical pick-up)

1 Remove four solders.

2 Solder the short-land.

4 BD74UR board block

7 optical pick-up block

5 tapping screw (P2)

6 shaft (support)

Note 2: When assembling the optical pick-up block, 
 

remove the solder of short-land after 

 

connecting the wire (flat type) (16 core).

Note 1: When disconnecting the wire (fl at type) (16 core) of optical pick-up block, solder the short-land.

COLD  RESET
The cold reset clears all data including preset data stored in the 
memory to initial conditions. Execute this mode when returning 
the set to the customer.
Procedure:
1.  In the standby status, press the [

?/1

] button to turn the power 

on.

2.  Press three buttons of [

x

], [FUNCTION] and [

?/1

] simultane-

ously.

3.  When “RESET” appears, the set enters standby status.

PANEL  TEST  MODE
Enter The Panel Test Mode
Procedure:
1.  In the standby status, press the [

?/1

] button to turn the power 

on.

2.  Press three buttons of [DSGX], [

x

] and [

?/1

] simultaneously.

3.  When the panel test mode is activated, LEDs and segments of 

the liquid crystal display are all turned on.

Version Check
Procedure:
1.  In the panel test mode (all LEDs and segments of the liquid 

crystal display are turned on), press the [FUNCTION] button.

2.  On the liquid crystal display, date and version are displayed 

“xxxxxxxx”.

3.  From this status, press the [

u

] button, and the destination and 

model name are displayed.

4.  To release from this mode, press three buttons of [DSGX], [

x

] 

and [

?/1

] simultaneously.

Key Test Mode
Procedure:
1.  In the panel test mode (all LEDs and segments of the liquid 

crystal display are turned on), press the [

x

] button.

2.  The message “KEY0 0 0” displayed. Whenever any buttons 

are pressed, the value is changed.

3.  To release from this mode, press three buttons of [DSGX], [

x

] 

and [

?/1

] simultaneously.

CD  POWER  MANAGE
This mode is for switch the CD power supply on/off. Even if this 
state pulls out AC plug, it is held.
Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press the [FUNCTION] button to select CD function.
3.  Press the [

?/1

] button again to turn the power off (standby).

4.  After pressing the [DISPLAY] button, while pressing the [

x

] 

button, press the [

?/1

] button.

5.  It turns power on and display “CD/USB”, then display “PWR 

ON” or “PWR OFF”.

CHANGE-OVER  THE  AM  TUNING  INTERVAL
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press the [FUNCTION] button to select TUNER AM function.
3.  Press the [

?/1

] button again to turn the power off (standby).

4.  After pressing the [DISPLAY] button, while pressing the 

[TUNING + M L] button, press the [

?/1

] button.

5.  It turns power on and display “9k STEP” or “10k STEP”, and 

thus the tuning interval is changed over.

CD  SERVICE  MODE
This mode can move the SLED of the optical pick-up, and also can 
turn the optical pick-up laser power on and off.
Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press three buttons of [u], [ENTER] and [

?/1

] simultane-

ously.

3.  Press the [FUNCTION] button to select CD function.
4.  It enters the CD service mode and displays “SERVICE”.
5.  To release from this mode, press three buttons of [u], [EN-

TER] and [

?/1

] simultaneously.

Key Operation:
[TUNING + M L], [– TUNING l m]: 
 

Use these keys to move the SLED. When [TUN-
ING + M L] is pressed in this mode, the SLED 
moves to outer circumference and the message 
“SLED OUT” is displayed. 

 When 

[– 

TUNING 

l m

] is pressed in this 

mode, the SLED moves to inner circumference and 
the message “SLED IN” is displayed. 

[CD]: 
 

Use this key to turn the optical pick-up laser power 
on and off. When the laser power is turned on, the 
message “LD ON” is displayed. When the laser 
power is turned off, the message “LD OFF” is dis-
played. 

Note 1: Do not enter the this mode while any other test mode 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 [u], [USB] and [

?/1

] simultaneously.

4.  It enters the CD factory mode and the message “FACTORY” 

is displayed. When the [CD] button is pressed, the following 
message (initial display) is displayed.

  – ON   

 

 

S character mode setting

 

 

Tracking servo setting

 

 RF gain setting

Key Operation:
[CD]:
 

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

 

[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.

[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 three buttons of [u], [USB] 

and [

?/1

] simultaneously.