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3-6
NO 3.3V.
Is Vcc(4V) supplied
to IC152 Pin1?
YES
Is the Q162 Base
“H”?
YES
Check or Replace
IC152, R156, C153.
YES
(8) No 3.3V(TO DVD)
Check or Replace
the D111.
NO
NO
Check the Power
Control.
NO FD(-).
Is -27VA supplied
to PPM01 13 pin?
YES
Is FD(+) supplied?
YES
Check ZD101.
YES
(10) -27VA, FD(-), FD(+)
Check D108 or the
trans.
NO
NO
Replace D107 or
F102.
NO 27V.
Is HSR ‘H’ ‘H’?
YES
Is 0V put into the
Q154 collector?
YES
Is 30V put into the
Q155 base?
Check the Q155.
YES
YES
(9) No 27V(TO CAP)
Check the HSR ‘H’
Signal from µ-com.
NO
NO
Replace Q154.
NO
Check Q153,
ZD104.
Summary of Contents for DVD755VR
Page 8: ...Directions for Use ...
Page 9: ......
Page 10: ......
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Page 26: ...Personal Notes ...
Page 49: ......
Page 56: ...3 32 3 33 2 TU IF NICAM A2 CIRCUIT DIAGRAM EE MODE VIDEO TU MODE AUDIO COMBI SCART ...
Page 59: ...3 38 3 39 5 SCART JACK CIRCUIT DIAGRAM OPTIONAL PART COMBI SCART ...
Page 61: ...3 42 3 43 7 TIMER CIRCUIT DIAGRAM ...
Page 65: ...3 50 3 51 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...
Page 66: ...3 52 3 53 2 SMPS P C BOARD LOCATION GUIDE 3 TIMER P C BOARD LOCATION GUIDE 4 KEY P C BOARD ...
Page 67: ......
Page 93: ......
Page 96: ...3 83 3 84 3 AUDIO CIRCUIT DIAGRAM COMBI SCART MTK 03 3 25 SR17447A ...
Page 97: ...3 85 3 86 4 AV JACK CIRCUIT DIAGRAM COMBI SCART MTK 03 3 25 SR17446A ...
Page 100: ...3 91 3 92 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...
Page 101: ......
Page 133: ...MEMO ...
Page 134: ...EXPLODED VIEW 1 Deck Mechanism Exploded View 5 1 CONTENTS SECTION 5 MECHANISM OF DVD PART ...