3-18
6. Tuner/IF CIRCUIT
(A) No Picture on the TV screen
No picture on the TV
screen
Does the Video signal at
the TU701 Pin24.
YES
YES
YES
Is +33V applied to TU701
Pin16?
YES
Is +5V applied to TU701
Pin13?
NO
Does Sync appear at
IC501 Pin111.
NO
Does the Video signal at
the IC501 Pin19.
YES
NO
Does the Video signal at
the IC301 Pin29.
YES
NO
NO
Does the Video signal at
the IC802 Pin29.
Check the signal flow from
IC803 Pin6 to SC901 Pin19.
YES
YES
Check 33V line.
NO
Check 5V line.
NO
YES
Does the Clock signal
appear at TU701 Pin11?
Check the lIC Clock Signal
of
µ
-COM Pin59.
NO
YES
Does the data signal
appear at TU701 Pin12?
Replace Tuner.
Check the signal flow from
TU701 Pin24 to IC301 Pin15.
Check the signal from IC301
Pin65 to IC501 Pin17.
Check the signal from IC501
Pin19 to IC805 Base.
Check the signal from IC501
Pin54 to IC802 Pin7.
Check the lIC Data Signal
of
µ
-COM Pin60.
NO
Summary of Contents for HR-XV11EX
Page 3: ...SECTION 1 SUMMARY CONTENTS Important Safety Precautions SPECIFICATIONS 1 5 ...
Page 94: ...3 38 3 39 5 SCART JACK CIRCUIT DIAGRAM 03 4 7 SR14505B VJW602CP s ...
Page 99: ...3 48 3 49 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...
Page 110: ... 02 12 04 R17149A COMBI NS DAP202K 3 74 3 75 6 JACK CIRCUIT DIAGRAM ...
Page 115: ...LOCATION GUIDE 3 84 3 85 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...