Read Sony BMZ-K7D / CX-BK7 Service Manual online
6
CX-BK7
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
RELEASING THE DISC LOCK
The disc lock function for the antitheft of an demonstration
disc in the store is equipped.
disc in the store is equipped.
Releasing Procedure :
While pressing the [ENTER] key, press the
While pressing the [ENTER] key, press the
Z
key for 5 seconds.
The message “UNLOCKED” is displayed and the disc is unlocked.
Note:
When “LOCKED” is displayed, the disc lock is not released by
turning power on/off with the I/1 key.
turning power on/off with the I/1 key.
• MODEL IDENTIFICATION
MODEL
PART No.
Chilean and Peruvian models
4-249-187-1
[]
AEP and UK models
4-249-187-2
[]
Mexican model
4-249-187-3
[]
Saudi Arabia model
4-249-187-4
[]
Singapore and Malaysia models
4-249-187-5
[]
Australian model
4-249-187-6
[]
CIS model
4-249-187-7
[]
– Rear Cover –
PART No.
SERVICE POSITION
– Tape mechanism deck –
– Tape mechanism deck –
Connect the wire (flat type) (8 core)
to the main board (CN903) and
the mechanism deck.
to the main board (CN903) and
the mechanism deck.
Connect the wire (flat type) (11 core)
to the deck board (CN008) and the main board (CN009).
to the deck board (CN008) and the main board (CN009).
Ver 1.2
NOTE OF REPLACING THE MB03 BOARD
When replacing the MB03 board, since the adjustment value is
not set up correctly, “Drive Auto Adjustment” can’t be performed.
In this case, initialize Memory in the following procedures.
not set up correctly, “Drive Auto Adjustment” can’t be performed.
In this case, initialize Memory in the following procedures.
Procedure:
1. Set the test mode. (See page 28)
2. Press the
1. Set the test mode. (See page 28)
2. Press the
[2]
key of the remote commander, and set the “DRIVE
MANUAL OPERATION”. (See page 31)
3. Press the
[6]
key of the remote commander, and set the “2-6,
Memory Check”. (See page 33)
4. Press the
[CLEAR]
key of the remote commander, and initial-
ize Memory.
Click on the first or last page to see other BMZ-K7D / CX-BK7 service manuals if exist.