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
Содержание DVP7771
Страница 8: ...2 3 Deck Mechanism Section 430 430 001 430 002 002 006 005 004 003 002 431 431 007...
Страница 32: ...MEMO...
Страница 37: ...3 15 3 16 LCD P C BOARD LOCATION GUIDE LOCATION GUIDE...
Страница 38: ...MEMO MEMO...
Страница 44: ...3 42 3 43 6 PANTER CIRCUIT DIAGRAM waveforms page 3 58 3 59 2002 02 01 R14113A...
Страница 45: ...3 44 3 45 7 MEMORY CIRCUIT DIAGRAM 2002 02 01 R14114A...
Страница 46: ...3 46 3 47 8 X BUS CIRCUIT DIAGRAM Q501 is defective Key S W voltage abnormal 2002 02 01 R14115A...
Страница 47: ...3 48 3 49 9 CPLD CIRCUIT DIAGRAM 2002 02 01 R14116A...
Страница 51: ...3 56 3 57 13 REMOCON CIRCUIT DIAGRAM Remocon not operate Q902 is defective LED not operate 2002 02 01 R14123A...
Страница 54: ...3 62 3 63 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE LOCATION GUIDE...
Страница 55: ...3 64 3 65 2 FRONT KEY P C BOARD LOCATION GUIDE LOCATION GUIDE...
Страница 56: ...MEMO MEMO...
