42
LC-26GA5E
LC-32GA5E
LC-26GA5E
LC-32GA5E
<On input of the tuner (U/V)>
No picture (1)
No picture appears on the reception of the tuner (U/V)
Confirmation of the settings:
1) Is "INPUT MODE" of remote control set properly?.... Set "INPUT MODE" to TV referring to the operation manual.
2) Is MENU-PICTURE-LEVELS-CONTRAST/BRIGHTNESS set to "MIN"?... Set to the desired level.
3) Is ANT-CABLE disconnected or is there a connector error?....Connect according to the operation manual.
YES
Is video signal (IF) sent from the pin
NO
Check the tuner (TU1201) and its
(11) of TUNER(TU1201)?
peripheral circuit
YES
Are video signals sent from the pins
NO
Check the SF1201 and its peripheral
(4) and (5) of SF1201 (SAW FIL) ?
circuits
YES
Are video signals (IF± ) supplier to
NO
Check SF1201 to the pins (109) (110) of
the pins (109)(110) IC1001 (VCTI)?
IC1001 (VCTI) and peripheral circuits
YES
NO
Are digital video output (ITU 656 71 ~ 80) and synchro signals (81, 82) of IC 1001?
Check IC1001, IC1002, IC 1003 and periph
eral components.
YES
NO
Are R,G,B and synchro output signals at pins (97, 94,91, 34 and 35 ) of IC6004 as specified?
Check IC6004and peripheral componen
ts
YES
YES
Are R,G,B output signals at pins
NO
Check IC1001 and peripheral
Are synchro signal at pins (34)
NO
Check IC1001, IC 6004 and
(1) (144) and (143) of IC1001 as specified?
components
(35 ) of IC 6004 as specified?
peripheral components
YES
YES
Are R,G,B input signals at pins
NO
Check Q1802, Q1803, Q1804
Are synchro input signals at pins
NO
Check IC 2205 and IC 1803 and
(2) (5) (14) of IC1801 as specified?
and peripheral components
(4) (13) of IC 2206 as specified?
peripheral components
YES
YES
Are R,G,B input signals at pins
NO
Check IC1801, IC1802
Are synchro input signals at pins
NO
Check IC 2206 and peripheral
(5) (14) (11) of IC 2203 as specifeid?
and peripheral components
(64) (65) of IC 2201 as specified?
components
YES
Are R,G,B input signals at pins
NO
Check IC2203 and IC1803
(37) (43) (50) of IC2201 as specified?
and peripheral components
YES
YES
Are video digital output signals at pins (DEB 66 ~ 78) ( DEG 79 ~ 88) ( DER 89 ~ 98) (DOB 99 ~ 113) (DOG 114 ~ 121) (DOR 124 ~
131)
NO
Check IC 2201, IC 2210 and
and (DVS 101) (DHS 102) (DEN 103) (DCLOK 106) of IC2201 as specified?
peripheral components
YES
Are digital video signals (TA1± ~ TD1± ) sent to the pins (3) ~ (16) of LV connector (SC2201) on MAIN PWB?
NO
Check IC 2207 and peripheral
Are digital video signals (TA2 ± ~ TD2 ± ) sent to the pins (18) ~ (31) of LV connector (SC2201) ?
components
YES
Check the LCD CONTROLLER Unit
Troubleshooting Table (continued)
