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LC-30AA1M
LC-30AA1H
No picture comes out.
Is the RSET terminal (pin (3))
of IC2206 set to "H"?
YES
Is the clock (91.3 MHz) applied to
pin (102) of IC2206?
YES
Is the normal synchronization
signal is applied to pins (97),
(96) and (95) of IC2206?
YES
Check IC4903 and the ICs
(IC4701, IC4702, IC4901 and
IC4902) downstream from it.
Note that the unit should be replaced when the receiver IC (IC2206), HDCP KEY ROM, (IC2208) CONFIG ROM
(IC2202) or microprocessor (IC2004) is replaced.
Applicable unit: DKEYHC094FE52/53/54
Data bit dropout (gray-scale-related)
Set PATTERN1 on the adjustment
process menu to "2". Is the gray
scale pattern displayed correctly?
YES
Set PATTERN3 on the adjustment
process menu to "1" to "3" (the QS
drive test pattern is displayed). Is
the gray scale displayed correctly?
YES
Set PATTERN3 on the adjustment
process menu to "4". Is the test
pattern displayed correctly at
intervals of one dot?
YES
Set PATTERN3 on the adjustment
process menu to "5". Is the test
pattern displayed correctly at
intervals of one dot?
YES
Perform checking between SC2201
and IC2206, between IC2206 and
IC4701 or between IC2206 and
IC4901.
PATTERN R, G and B become effective only when the monitor is started singly. Each can produce a solid
filled screen of 256-level gray scale, which can be used for IC wire connection checking when a certain gray
scale level is not produced.
NO
Perform checking around X2201
connected to pin (161) of IC2206.
YES
NO
Is X2201 connected to pin (161) of
IC2206 oscillating (18.26 MHz)?
YES
NO
Is IC2202 operating (CONFIG
ROM)?
YES
IC2206 is faulty.
Check the color signal in question
NO
with the gray scale test pattern. Is
there a problem with the contact
and resistance between IC4501
and SC4601-4604?
YES
Perform checking around
IC4501 and SC4601-4604.
NO
Perform checking around
IC4702 and IC4902.
NO
Perform checking between
IC4701 and IC4501.
NO
Perform checking between
IC4901 and IC4501.
24
NO
Check X2201 and the
peripheral circuitry.
Perform checking
NO
around IC2202.
NO
Check FFC
connected to
SC4601-4604.
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