HX-Z1
33
4.8 Maintenance of laser pickup
(1) Cleaning the pick up lens
Before you replace the pick up, please try to clean the lens
with a alcohol soaked cotton swab.
(2) Life of the laser diode
When the life of the laser diode has expired, the following
symptoms will appear.
a) The level of RF output (EFM output : ampli tude of
eye pattern) will below.
(3) Semi-fixed resistor on the APC PC board
The semi-fixed resistor on the APC printed circuit board
which is attached to the pickup is used to adjust the laser
power. Since this adjustment should be performed to
match the characteristics of the whole optical block, do not
touch the semi-fixed resistor.
If the laser power is lower than the specified value, the la-
ser diode is almost worn out, and the laser pickup should
be replaced.
If the semi-fixed resistor is adjusted while the pickup is
functioning normally, the laser pickup may be damaged
due to excessive current.
4.9 Replacement of laser pickup
Summary of Contents for HX-Z1
Page 17: ...HX Z1 17 Fig 5 Fig 6 Fig 7 Fig 8 Fig 9 ...
Page 26: ...HX Z1 26 ...
Page 31: ...HX Z1 31 4 6 5 Extension code connecting method ...
Page 32: ...HX Z1 32 4 7 Flow of functional operation until TOC read ...
Page 35: ...HX Z1 35 5 2 KIA7805API IC360 Regulator Pin layout Block diagram ...
Page 36: ...HX Z1 36 5 3 BH3874AKS2 IC434 Audio sound processor Pin layout Block diagram ...
Page 38: ...HX Z1 38 5 4 KIA7808API IC303 Regulator Pin layout Block diagram ...
Page 39: ...HX Z1 39 5 5 KIA7812API IC240 Regulator Pin layout Block diagram ...
Page 40: ...HX Z1 40 5 6 NJM4580D IC501 IC502 IC571 LPF Mic and H phone amp Pin layout Block diagram ...
Page 42: ...HX Z1 42 5 9 STK412 010 IC701 Power amp Pin layout Block diagram ...
Page 44: ...HX Z1 44 5 11 KIA7809API IC305 Regulator Pin layout Block diagram ...
Page 48: ...HX Z1 48 5 16 BU4094BCF X IC33 Shift Store registor Pin layout Block diagram ...
