65
VT-G14
VT-G21
FLOWCHART NO. 2-6
NO VERTICAL SCAN
NO
NO
NO
YES
Vertical freq check
FLOWCHART NO. 2-7
NO SOUND
Does waveform appear
at pin (8) of IC301 ?
YES
Does waveform appear
at pin (3) of IC351 ?
Check IC301, IF Circuit
and adjacent parts.
Check IC351 and
adjacent parts.
Check pin (29) of IC801
and adjacent parts.
NO
YES
FLOWCHART NO. 2-8
NO PLAYBACK PICTURE
Is there a signal at pin (1)
of IC801 ?
Check IC801 and
adjacent parts as same
as "NO PICTURE".
Check the VCR:
TROUBLE SHOOTING
"NO PLAYBACK".
YES
Does waveform appear
at pin (8) of IC351 ?
Check the speaker.
Normal
Pin (53) of IC801
Abnormal
IC801 pin (54) bias
check.
Normal
IC801
Abnormal
IC501 bias check.
Normal
D501~D504, C503, C504,
C511, R513
Abnormal
Check the connectors
F5, F6 and adjacent
parts.
NO
YES
FLOWCHART NO. 2-9
NO PLAYBACK SOUND
Is there a signal at pin (28)
of IC801 ?
Check the TV:
TROUBLE SHOOTING
"NO SOUND".
Check the VCR:
TROUBLE SHOOTING
"NO SOUND".
Содержание VT-G14
Страница 69: ...71 VT G14 VT G21 70 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM OF TV SECTION 1 ...
Страница 76: ...80 VT G14 VT G21 6 5 4 3 2 1 A B C D E F G H MODEL VT G14 SCHEMATIC DIAGRAM OF TV SECTION CRT and POWER Unit ...
Страница 77: ...81 VT G14 VT G21 6 5 4 3 2 1 A B C D E F G H MODEL VT G14 SCHEMATIC DIAGRAM OF TV SECTION KEY and IF Unit ...
Страница 80: ...86 VT G14 VT G21 6 5 4 3 2 1 A B C D E F G H MODEL VT G21 SCHEMATIC DIAGRAM OF TV SECTION CRT and POWER Unit ...
Страница 81: ...87 VT G14 VT G21 6 5 4 3 2 1 A B C D E F G H MODEL VT G21 SCHEMATIC DIAGRAM OF TV SECTION KEY and IF Unit ...
Страница 85: ...94 VT G14 VT G21 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM OF VCR SECTION Ë SYSTEM CONTROL BLOCK DIAGRAM ...
Страница 86: ...95 VT G14 VT G21 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM OF VCR SECTION Ë SAFETY DEVICE BLOCK DIAGRAM ...
Страница 88: ...98 VT G14 VT G21 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM OF VCR SECTION Ë Y C BLOCK DIAGRAM ...
Страница 90: ...101 VT G14 VT G21 100 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM OF VCR SECTION VCR 1 Unit ...
Страница 93: ...106 VT G14 VT G21 6 5 4 3 2 1 A B C D E F G H PRINTED WIRING BOARD ASSEMBLIES PWB C POWER Unit Wiring Side ...
Страница 94: ...107 VT G14 VT G21 6 5 4 3 2 1 A B C D E F G H PWB F KEY Unit Wiring Side PWB D CRT Unit Wiring Side ...
Страница 95: ...109 VT G14 VT G21 108 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Wiring Side ...
Страница 96: ...111 VT G14 VT G21 110 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Chip Parts Side ...
Страница 98: ...113 VT G14 VT G21 6 5 4 3 2 1 A B C D E F G H Chip Parts Side Wiring Side PWB B TUNER DEF Unit ...