3-40
3-41
CIRCUIT DIAGRAMS
1. POWER CIRCUIT DIAGRAM
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
No Power
BD101,R101 is Defective
No Digitron Displayed
D128,R107,ZD151 are Defective
No Power
F101 is Defective
Switching Error
IC102,IC103 are Defective
S/W Error
IC101,IC104 are Defective
-26VA No Power
D127 is Defective
-26VA No Power
D127 is Defective
5.3VA No Power
D121 is Defective
12V No Power
D126 is Defective
30VA No Power
D130 is Defective
No Power
IC107,Q111 are Defective
No Power
IC107,Q111 are Defective
3.3V No Power
D122 is Defective
1.8V No Power
D123 is Defective
5V No Power
D124 is Defective
12V No Power
D125 is Defective
3.3V No Power
IC154 is Defective
1.8V No Power
IC160 is Defective
12V No Power
IC158 is Defective
2.5V No Power
IC152 is Defective
5V No Power
IC151 is Defective
5.0VT No Power
Q124 is Defective
33VT No Power
Q123 is Defective
5.0VD No Power
Q120 is Defective
12VT No Power
IC156 is Defective
12V No Power
IC153 is Defective
Summary of Contents for 7823W
Page 41: ...3 42 3 43 2 E5 BGA POWER UART2_RS232C CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 45: ...3 50 3 51 A B C D E F G H I J K L M N O P Q R S T 6 VIDEO DECODER IO JACK CIRCUIT DIAGRAM ...
Page 46: ...3 52 3 53 7 ATAPI 1 2 MEMORY CARD I O CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 47: ...3 54 3 55 8 JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 48: ...3 56 3 57 9 I O µ COM CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 49: ...3 58 3 59 10 TUNER MPX ADC DAC JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 50: ...3 60 3 61 11 KEY CIRCUIT DIAGRAM 5 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 51: ...12 KEY CIRCUIT DIAGRAM 6 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T 3 62 3 63 ...
Page 52: ...3 64 3 65 13 KEY CIRCUIT DIAGRAM 8 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 53: ...14 KEY CIRCUIT DIAGRAM 9 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T 3 66 3 67 ...
Page 54: ...3 68 3 69 15 TIMER CIRCUIT DIAGRAM 5 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 55: ...3 70 3 71 16 TIMER CIRCUIT DIAGRAM 6 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 56: ...3 72 3 73 17 TIMER CIRCUIT DIAGRAM 8 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 57: ...3 74 3 75 18 TIMER CIRCUIT DIAGRAM 9 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Page 62: ...3 84 3 85 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP SIDE LOCATION GUIDE ...
Page 63: ...3 86 3 87 LOCATION GUIDE 2 MAIN P C BOARD BOTTOM SIDE ...
Page 64: ...3 88 3 89 3 I O P C BOARD TOP VIEW BOTTOM VIEW 4 JACK P C BOARD ...
Page 65: ...3 90 3 91 6 POWER P C BOARD LOCATION GUIDE BOTTOM VIEW 5 HDD P C BOARD TOP VIEW ...
Page 67: ......
Page 87: ...4 20 9 LASER TURN ON SIGNAL F LIC502 PIN 52 LDEN DVD LCN201 PIN17 VRDC LCN201PIN 34 ...
Page 102: ...4 35 2 Disc Specification 3 Disc Materials 1 DVD ROM Single Layer Dual Layer ...
Page 122: ...4 55 4 56 CIRCUIT DIAGRAMS 1 RF CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 123: ...4 57 4 58 2 DSP CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 124: ...4 59 4 60 3 µ COM CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 126: ...4 63 4 64 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...