3-25
D.
Is the eye-pattern vivid?
Does the
sawtooth waveform emit
at IC2A1 Pin 41?
Does the 1.6V emit?
Check RF Eye-Pattern.
RF : 1.5-1.6V(IC2A1 Pin 57)
Fig.5. RF
waveform
Check IC2A1 Pins 5, 6, 7, 8.
No signal: Pick-up is defective
Replace IC207.
Check IC207 Pin84.
No signal at IC207 : IC207 is defective
Check IC207 Pin 165.
Check the clock at the IC207 Pin 138.
Both are normal : IC207 is defective
Replace IC2A1.
CHECK A
END
NO
NO
NO
NO
YES
YES
YES
YES
-
-
-
Summary of Contents for DVP7771
Page 8: ...2 3 Deck Mechanism Section 430 430 001 430 002 002 006 005 004 003 002 431 431 007...
Page 32: ...MEMO...
Page 37: ...3 15 3 16 LCD P C BOARD LOCATION GUIDE LOCATION GUIDE...
Page 38: ...MEMO MEMO...
Page 44: ...3 42 3 43 6 PANTER CIRCUIT DIAGRAM waveforms page 3 58 3 59 2002 02 01 R14113A...
Page 45: ...3 44 3 45 7 MEMORY CIRCUIT DIAGRAM 2002 02 01 R14114A...
Page 47: ...3 48 3 49 9 CPLD CIRCUIT DIAGRAM 2002 02 01 R14116A...
Page 54: ...3 62 3 63 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE LOCATION GUIDE...
Page 55: ...3 64 3 65 2 FRONT KEY P C BOARD LOCATION GUIDE LOCATION GUIDE...
Page 56: ...MEMO MEMO...
