Sony HCD-HX7 Service Manual - Page 4

Hcd-hx3/hx5/hx7, Servicing, Notes - hx7 40

Get Sony HCD-HX7 - Compact Disc Receiver PDF manuals and user guides View all Sony HCD-HX7 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 4 highlights

HCD-HX3/HX5/HX7 SECTION 1 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic 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. MODEL IDENTIFICATION - Back Panel - PART No. 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 pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) MODEL HX3: Canadian HX3: AEP HX5: Canadian HX5: AEP, UK HX5: Australian HX5: Korean HX7 PART No. 2-895-161-0[] 2-895-161-1[] 3-096-225-0[] 3-096-225-1[] 3-096-225-3[] 3-096-225-4[] 3-096-225-5[] : LEAD FREE MARK Unleaded solder has the following characteristics. • Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! • Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. • Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. RELEASING THE ANTITHEFT LOCK The disc tray lock function for the antitheft of an demonstration disc in the store is equipped. Releasing Procedure : 1. Press the I/1 button to turn the power on. 2. While pressing the x/CANCEL button, press the Z button until "UNLOCKED" displayed on the fluorescent indicator tube (around 5 seconds). Note: When "LOCKED" is displayed, the antitheft lock is not released by turning power on/off with the I/1 button. 4

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
4
HCD-HX3/HX5/HX7
SECTION
1
SERVICING
NOTES
MODEL
IDENTIFICATION
MODEL
PART No.
HX3: Canadian
2-895-161-0
[]
HX3: AEP
2-895-161-1
[]
HX5: Canadian
3-096-225-0
[]
HX5: AEP, UK
3-096-225-1
[]
HX5: Australian
3-096-225-3
[]
HX5: Korean
3-096-225-4
[]
HX7
3-096-225-5
[]
The laser diode in the optical pick-up block may suffer electrostatic
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 emission,
observe from more than 30 cm away from the objective lens.
NOTES
ON
HANDLING
THE
OPTICAL
PICK-UP
BLOCK
OR
BASE
UNIT
UNLEADED
SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD
FREE
MARK
Unleaded solder has the following characteristics.
•
Unleaded solder melts at a temperature about 40
°
C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
°
C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•
Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•
Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
RELEASING
THE
ANTITHEFT
LOCK
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Releasing Procedure :
1.
Press the
I
/
1
button to turn the power on.
2.
While pressing the
x
/
CANCEL
button, press the
Z
button
until “UNLOCKED” displayed on the fluorescent indicator
tube (around 5 seconds).
Note:
When “LOCKED” is displayed, the antitheft lock is not released by
turning power on/off with the
I/
1
button.
PART No.
– Back Panel –