3-24
C.
FOCUS ON?
Check
the focus error moving the
lens up and down.
(IC2A1 Pin 42)
Does the
TTL level change at IC207
Pin 121 and 152 moving
the lens?
Does the disc turn?
IC207 Pin105 is "High"?
Is OK the track jump.
Does the signal
pulse appear at IC2A1 Pins
39, 29?
Does the screen appear?
OPEN/CLOSE
Replace -COM or IC201.
Replace IC207.
Check IC2A1 Pin 11,12,13,14
in DVD Mode
Fig.3. FOCUS ERROR waveform
IC201 no output : Pick-up is defective.
Check IC207 and IC2M1 when CON203 Pin 3 is abnormal
Check IC2M6 Pin 8, CON203
Pin 3 turn when the IC2M6
Pin 8 is less than 1.65V
Check A
Video Part is defective.
Check "5.MPEG Circuit."
Check "7.OSD/Video Circuit."
Replace -COM part.
IC2A1 is defective.
DISC IN
END
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
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...
