1-11-18
E9G01TR
Yes
"F"
Check the line between Pin(21,25) of IC1518 and
audio terminal (JK1502), and service it if defective.
Are the audio signals outputted to the specific
output terminal?
Are the audio signals outputted to the audio
terminal (JK1502)?
Are the audio signals outputted to the audio
terminal (JK2001)?
Yes
IC1518 21,25PIN AUDIO-OUT 1 (AV1)
IC1518 22,26PIN AUDIO-OUT 2 (AV2)
Are the audio signals outputted to each pin
of IC1518?
No
No
Check the line between Pin(22,26) of IC1518 and
audio terminal (JK2001), and service it if defective.
No
Check the AL+12V(1) line
and service it if defective.
Replace IC1518.
Yes
No
Is 12V voltage supplied to Pin(2,4) of IC1518?
Check the line between Pin(3,13) of IC1501 and
Pin(4,50) of IC451, and service it if defective.
Check the circuit of AL+5V(1), P-ON+5V and
P-ON+9V, and service it if defective.
Is the 5V voltage supplied to Pin(16,32,35,36,46,55) of
IC451, or the 9V voltage supplied to Pin(69) of IC451?
Is the serial data and the clock signal supplied to
Pin(37,38) of IC451?
Is the audio signal outputted to Pin(74,76)
of IC451?
Is the audio signal inputted into Pin(2,12) of
IC1508?
Is the audio signal outputted to Pin(14,15) of
IC1508?
Is the audio signal supplied to Pin(4,50) of IC451?
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
Check the line between Pin(37,38) of IC451 and
Pin(71,72) of IC501, and service it if defective.
Check the line between Pin(53) of IC451 and
Pin(28) of IC501, and service it if defective.
Check the line between Pin(74,76) of IC451 and
Pin(2,12) of IC1508, and service it if defective.
Is the audio signal inputted into Pin(6,12) of
IC1518?
Yes
No
Check the line between Pin(14,15) of IC1508 and
Pin(6,12) of IC1518, and service it if defective.
Replace IC451.
Is the "L" pulse inputted into the Pin(53) of IC451?
Check the AL+5V(1) and
AL-5V line, and service it if
defective.
Replace IC1508.
Yes
No
Is 5V voltage supplied to Pin(16) of IC1508?
Is -5V voltage supplied to Pin(7) of IC1508?
Summary of Contents for DRVR-B778S
Page 17: ...1 6 5 E9G01DC Fig D10 20 Deck Pedestal 21 Front Bracket R S 19 S 19 S 19 S 19 S 20...
Page 56: ...1 13 3 E9G10SCM1 Main 1 9 Schematic Diagram VCR Section...
Page 58: ...1 13 5 E9G10SCM3 Main 3 9 Schematic Diagram VCR Section...
Page 59: ...1 13 6 E9G10SCM4 Main 4 9 Schematic Diagram VCR Section...
Page 60: ...1 13 7 E9G10SCM5 Main 5 9 Schematic Diagram VCR Section...
Page 61: ...1 13 8 E9G10SCM6 Main 6 9 Front Jack Schematic Diagram VCR Section...
Page 62: ...1 13 9 E9G10SCM7 Main 7 9 Schematic Diagram VCR Section...
Page 63: ...1 13 10 E9G10SCM8 Main 8 9 Schematic Diagram VCR Section...
Page 64: ...1 13 11 E9G10SCM9 Main 9 9 Schematic Diagram VCR Section...
Page 66: ...1 13 13 E9G10SCRJ Rear Jack Schematic Diagram VCR Section...
Page 67: ...1 13 14 E9G10SCAFV AFV Schematic Diagram VCR Section...
Page 87: ...1 18 2 E9G01PEX Packing X4 S2 S2 S3 S2 A14 S1 S5 S5 S2 X9 X3 S9 X2 X1 X31 X43 X22 X20 S10...
Page 104: ...DRVR B778S E9G10BD 2007 07 23...
