
3-30
3-31
NOTES) Symbol denotes AC ground.
NOTES)
Symbol denotes DC chassis ground.
NOTE) Warning
NOTE)
Parts that are shaded are critical
NOTE)
With respect to risk of fire or
NOTE)
electricial shock.
VC8806P1K's
CIRCUIT DIAGRAMS
1. POWER(SMPS) CIRCUIT DIAGRAM 1
IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO CIR-
CUMSTANCES SHOULD THE ORIGINAL DESIGN BE
MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE PHILIPS ELECTRONICS CORPORATION.
ALL COMPONENTS SHOULD BE REPLACED ONLY
WITH TYPES IDENTICAL TO THOSE IN THE ORIGI-
NAL CIRCUIT. SPECIAL COMPONENTS ARE SHADED
ON THE SCHEMATIC FOR EASY IDENTIFICATION.
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIF-
FER FROM THE ACTUAL CIRCUIT USED. THIS WAY,
IMPLEMENTATION OF THE LATEST SAFETY AND
PERFORMANCE IMPROVEMENT CHANGES INTO
THE SET IS NOT DELAYED UNTIL THE NEW SERVICE
LITERATURE IS PRINTED.
NOTE :
1. Shaded( ) parts are critical for safety. Replace only
with specified part number.
2. Voltages are DC-measured with a digital voltmeter
during Play mode.
Switching Error.
IC101 is defective.
Switching Error.
IC105, 102 are defective.
2.5V, 3.3V no power.
D111 is defective.
No Power.
F101 is defective.
5.3VA no power.
D112 is defective.
33V no power.
D113 is defective.
No power.
BD101, R101 are defective.
12VA no power.
D110 is defective.
Summary of Contents for DVP 721VR
Page 36: ...3 32 3 33 2 POWER SMPS CIRCUIT DIAGRAM 2 ...
Page 37: ...3 34 3 35 3 TU IF NICAM A2 CIRCUIT DIAGRAM EE MODE VIDEO TU MODE AUDIO ...
Page 40: ...3 40 3 41 6 SCART JACK CIRCUIT DIAGRAM ...
Page 45: ...3 50 3 51 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD VCR DVD _SOLDER SIDE LOCATION GUIDE ...
Page 46: ...3 52 3 53 2 MAIN P C BOARD VCR DVD _COMPONENT SIDE LOCATION GUIDE ...
Page 60: ...3 68 F FE RFL FIG 7 2 DVD F FE RFL FIG 7 3 CD ...
Page 61: ...3 69 F FE RFL FIG 7 4 CD 8 FOCUS ON WAVEFORM FE FOSO F F FIG 8 1 DVD ...
Page 65: ...3 73 13 MT1389 AUDIO OUTPUT TO AUDIO DAC 2 COMPOSITE VIDEO SIGNAL FIG 12 2 FIG 13 1 ...
Page 66: ...3 74 FIG 14 1 14 AUDIO OUTPUT FROM AUDIO DAC ...
Page 71: ......
Page 72: ...3 79 3 80 CIRCUIT DIAGRAMS 1 SYSTEM CIRCUIT DIAGRAM ...
Page 73: ...3 81 3 82 2 RF DSP SERVO CIRCUIT DIAGRAM ...
Page 74: ...3 83 3 84 3 AV JACK CIRCUIT DIAGRAM ...
Page 107: ......
Page 113: ......
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