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3-17
6. TUNER/IF CIRCUIT
6-1. No Picture on the TV screen
NO
YES
YES
Does Sync
appear at IC501
Pin111.
Check the signal flow from
TU701 Pin19 to IC301 Pin48.
Replace Tuner.
No picture on the TV
screen
Check the signal flow
from IC903 Pins26, 27 to
SC901 Pin19.
YES
NO
Does the
Video signal at the
IC501 Pin47.
Check the signal from
IC301 Pin65 to IC501 Pin49.
YES
NO
Does the
Video signal at the
IC301 Pin61.
Check the signal from
IC501 Pin47 to IC301 Pin56.
YES
NO
Does the
Video signal at the
IC903 Pin6.
Check the signal from
IC903 Pin6 to IC301 Pin61.
YES
NO
NO
Does
the Video signal
at the TU701
Pin19.
YES
Is 33VT
applied to TU701
Pin17?
Check 33V line.
NO
YES
Is 5VT
applied to TU701
Pin4?
Check 5V line.
YES
NO
Does the
data signal appear at
TU701 Pin13?
Check the lIC Data
Signal of µ-COM Pin17.
NO
Does the
Clock signal
appear at TU701
Pin12?
Check the lIC Clock
Signal of µ-COM Pin18.
YES
VCR ELECTRICAL TROUBLESHOOTING GUIDE
Содержание DVP3350V/01
Страница 17: ...2 8 MEMO ...
Страница 45: ...3 37 3 38 5 TUNER CIRCUIT DIAGRAM ...
Страница 51: ...3 49 3 50 IC301_LA71750EM IC501_MN101D10X IC801_TDA9605H IC751_MSP3417 3407 ...
Страница 52: ...3 51 3 52 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP SIDE ...
Страница 53: ...3 53 3 54 2 MAIN P C BOARD BOTTOM SIDE ...
Страница 54: ...3 55 3 56 3 POWER P C BOARD ...
Страница 55: ...3 57 3 58 4 KEY P C BOARD ...
Страница 66: ...3 69 3 2 Tray open waveform FIG 3 2 FIG 3 3 3 3 Tray close waveform OPEN CLOSE LM LM OPEN CLOSE LM LM ...
Страница 69: ...3 72 FIG 7 2 CD FIG 8 1 DVD 8 SPINDLE CONTROL WAVEFORM NO DISC CONDITION FE FOCUS FACT FACT SPINDLE_S SP SP ...
Страница 71: ...3 74 10 RF WAVEFORM FIG 10 1 FIG 11 1 11 ZR36966 AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF RFO SPDIF ...
Страница 73: ...3 76 12 3 C FIG 12 3 FIG 13 1 13 AUDIO OUTPUT FROM AUDIO PREAMP 13 1 AUDIO L R JK702 Pin8 JK702 Pins4 5 ...
Страница 77: ...3 80 MEMO ...
Страница 78: ...3 81 3 82 CIRCUIT DIAGRAMS 1 MPEG CIRCUIT DIAGRAM ...
Страница 79: ...3 83 3 84 2 SERVO CIRCUIT DIAGRAM ...
Страница 80: ...3 85 3 86 3 JACK CIRCUIT DIAGRAM ...
Страница 113: ...4 32 MEMO ...
Страница 119: ...5 6 MEMO ...
Страница 121: ...5 9 5 10 MEMO MEMO ...