3-5
No SW_5.3VA
Is the VCC (5.3V) sup-
plied to Q158 Emitor?
Check 5.3VA on
SMPS Board
Is there about 0V
at R179 and R156?
Check the ‘STANBY
H’signal from µ-COM
Check Q158 and
Replace
YES
YES
YES
No 3.3V
Check or Replace
the D127
Check the ‘PWR CTL
“H”’signal from µ-com
Is there about 3.8V at
the IC152 pin1?
Is there about 4V~ 5V
at the IC152 pin4?
Check the IC152
and Replace
NO
NO
YES
YES
YES
No 5.0VD
Check 5.3VA on
SMPS Board
Check the ‘PWR CTL
H’ signal from µ-COM
Is there about 5.3V
at the IC153 pin 1?
Is there about 4V ~ 5V
at the IC153 pin 4?
Check the IC153
and Replace
NO
NO
YES
YES
YES
No 2.5V
Check D154 and
D127 on SMPS Board
Is there about 3V ~ 3.8V
at the IC151 pin 1?
Is there about 4V ~ 5V
at the IC151 pin 4?
NO
NO
Check the ‘PWR CTL
H’ signal from µ-COM
NO
NO
YES
YES
Check the IC151
and Replace
YES
Содержание RH1777
Страница 27: ......
Страница 43: ...3 45 3 46 2 SMPS 2 CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T W NTSC ...
Страница 44: ...3 47 3 48 3 MPEG CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 45: ...3 49 3 50 4 FLASH DDR CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 46: ...3 51 3 52 5 RESET 1394 JEPG CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 47: ...3 53 3 54 A B C D E F G H I J K L M N O P Q R S T 6 ATAPI MEMORY CARD CIRCUIT DIAGRAM ...
Страница 50: ...3 59 3 60 9 DECODER CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T W NTSC ...
Страница 51: ...3 61 3 62 10 TIMER CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 56: ...3 71 3 72 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...
Страница 57: ...3 73 3 74 2 I O P C BOARD TOP VIEW ...
Страница 58: ...3 75 3 76 BOTTOM VIEW 2 I O P C BOARD ...
Страница 59: ...3 77 3 78 3 POWER P C BOARD ...
Страница 61: ...3 81 3 82 6 HDMI P C BOARD OPTIONAL PARTS TOP VIEW BOTTOM VIEW ...
Страница 62: ......
Страница 79: ...4 17 2 DISC SPECIFICATION 3 DISC MATERIALS 1 DVD ROM Single Layer Dual Layer ...
Страница 104: ......
Страница 105: ...4 42 4 43 CIRCUIT DIAGRAMS 1 DSP CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 106: ...4 44 4 45 2 RF CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 107: ...4 46 4 47 3 DRIVE CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 109: ...4 50 4 51 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...
Страница 110: ...4 52 4 53 2 MAIN P C BOARD BOTTOM VIEW ...