3-13
3. Y/C CIRCUIT
(2) When the Y(Luminance) signal doesn’t appear on the screen in PB Mode,
Is 5.0V 5.3VA applied to IC301
Pins24, 42, 55, 72, 91?
Is I
2
C BUS signal applied to
the IC301 Pins68, 69?
Does the normal RF signal
appear at IC301 Pin 78?
Check the line of the 5.0V
5.3V Line. (Power Circuit)
Check the System Circuit.
(IC501 Pin23)
Check the V.H.S/W level.
(Check R303, R304)
Refer to ‘SYSTEM I
2
C
BUS CHECK Trouble
Shooting’.
Is the V.H.S/W signal
applied to IC301 Pin70?
Is the V.H.S/W “H” about
3.4V at the IC301 Pin70?
Clean the Drum.
Check the path of the
Y(Luminace) RF signal.
(Check the C327)
Check the path of the
Y(Luminace) RF signal.
(Check the C312)
Does the Y(Luminance)
RF signal appear at
IC301 Pin79?
Is the Y(Luminance) Video
waveform showed up at
IC301 Pin43?
Replace IC301.
NO
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
Replace the IC301.
NO
VCR ELECTRICAL TROUBLESHOOTING GUIDE
Содержание DVDR630VR
Страница 9: ......
Страница 15: ......
Страница 17: ......
Страница 35: ......
Страница 44: ...3 37 3 38 A B C D E F G H I J K L M N O P Q R S T 2 TUNER CIRCUIT DIAGRAM ...
Страница 45: ...3 39 3 40 A B C D E F G H I J K L M N O P Q R S T 3 A V CIRCUIT DIAGRAM ...
Страница 46: ...3 41 3 42 A B C D E F G H I J K L M N O P Q R S T 4 Hi Fi CIRCUIT DIAGRAM ...
Страница 47: ...3 43 3 44 WAVEFORM 1 2 7 4 3 6 5 A B C D E F G H I J K L M N O P Q R S T 5 SYSTEM CIRCUIT DIAGRAM ...
Страница 48: ...3 45 3 46 A B C D E F G H I J K L M N O P Q R S T 6 SCART JACK CIRCUIT DIAGRAM SCART Model Only ...
Страница 49: ...7 TIMER CIRCUIT DIAGRAM 3 47 3 48 ...
Страница 54: ...3 57 3 58 IC801_TDA9605 IC804_MM1231 IC901_MM1623FXBE IC902_MM1225 IC903_MM1225 ...
Страница 55: ...3 59 3 60 PRINTED CIRCUIT DIAGRAMS 1 VCR P C BOARD TOP VIEW ...
Страница 56: ...3 61 LOCATION GUIDE ...
Страница 57: ...3 62 LOCATION GUIDE ...
Страница 58: ...3 63 3 64 2 VCR P C BOARD BOTTOM VIEW ...
Страница 60: ...3 67 LOCATION GUIDE ...
Страница 61: ...3 68 4 JACK P C BOARD LOCATION GUIDE ...
Страница 62: ...3 69 3 70 5 KEY TIMER P C BOARD LOCATION GUIDE ...
Страница 63: ......
Страница 78: ...3 85 3 86 CIRCUIT DIAGRAMS 1 BGA 308P CIRCUIT DIAGRAM ...
Страница 79: ...3 87 3 88 2 DDR B TO B CONNECTOR CIRCUIT DIAGRAM ...
Страница 80: ...3 89 3 90 3 POWER FLASH CONNECTOR CIRCUIT DIAGRAM ...
Страница 81: ...3 91 3 92 4 RST CONTROL STATUS_REG ATAPI HOST_CPLD LATCH CIRCUIT DIAGRAM ...
Страница 82: ...3 93 3 94 5 VIDEO_IN VIDEO_OUT CIRCUIT DIAGRAM ...
Страница 83: ...3 95 3 96 6 DV1394 HDMI CIRCUIT DIAGRAM ...
Страница 84: ...3 97 3 98 7 AUDIO IN OUT CIRCUIT DIAGRAM ...
Страница 89: ...3 107 3 108 PRINTED CIRCUIT DIAGRAMS 1 VDR P C BOARD TOP VIEW ...
Страница 90: ...3 109 LOCATION GUIDE ...
Страница 91: ...3 110 LOCATION GUIDE ...
Страница 92: ...3 111 3 112 2 VDR P C BOARD BOTTOM VIEW ...
Страница 93: ......
Страница 110: ...3 129 3 Main Clock2 for IC302 20MHz X300 IC301 PIN 13 4 SDRAM Clock ...
Страница 128: ...3 147 2 Disc Specification 3 Disc Materials 1 DVD ROM Single Layer Dual Layer ...
Страница 145: ...3 164 2 RF Block Diagram ...
Страница 146: ...3 165 3 DSP Block Diagram ...
Страница 147: ...3 166 4 MICOM Block Diagram ...
Страница 148: ...3 167 3 168 CIRCUIT DIAGRAMS 1 RF1 CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 149: ...3 169 3 170 2 RF2 CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 150: ...3 171 3 172 2 DSP CIRCUIT DIAGRAM ...
Страница 151: ...3 173 3 174 3 MICOM CIRCUIT DIAGRAM IC BLOCK DIAGRAMS IC101_FSDL0365RN ...
Страница 154: ......
Страница 155: ...3 179 3 180 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD ...
Страница 156: ...3 181 LOCATION GUIDE ...
Страница 157: ...3 182 LOCATION GUIDE ...
Страница 158: ...3 183 3 184 2 MAIN P C BOARD ...
Страница 159: ......
Страница 191: ......
Страница 199: ...6 1 REVISION LIST Version 1 0 Initial release Version 1 1 Parts list correction to conform with component repair policy ...