BLOCK DIAGRAMS
1. POWER(SMPS) BLOCK DIAGRAM
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T101 |
BD101 |
R101 |
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SNUBBER |
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C103 |
BLOCK |
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(D101,C105 |
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C106,R104) |
6 7 8 |
CAP VCC |
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D115 |
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DRIVE & S/W BLOCK |
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RECTIFIER & |
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DRUM VCC |
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NOISE FILTER |
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(IC101, D102, R105, |
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SMOOTING BLOCK |
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D117 |
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BLOCK |
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5 |
C104, C109 , C135) |
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(D110,C123,C163, |
12V REG BLOCK |
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12V |
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(C101,L102, |
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R133,L122,C126) |
(Q156,ZD103,C151, |
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C102) |
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1 |
3 |
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RECTIFIER & |
R150,R153,C152) |
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5.3VA |
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SMOOTING BLOCK |
5V S/W BLOCK |
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5V |
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(D118,D112,C129, |
(Q160,C155,D121, |
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C131,L124,L125) |
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R157,R158,R159,R160) |
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FUSE |
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RECTIFIER & |
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(F101) |
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SMOOTING BLOCK |
3.3V REG BLOCK |
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3.3V |
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(D111,C127,L123, |
(IC152,C153,R156) |
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C128) |
33V S/W BLOCK |
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RECTIFIER & |
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33V |
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(Q161,R154,R155, |
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SMOOTING BLOCK |
R177) |
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(D113,C132,R119) |
5V S/W BLOCK |
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SW5V |
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(Q163,C162,R173, |
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Y-CAP |
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PHOTO COUPLER |
FEED-BACK |
Q164) |
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(IC102) |
BLOCK |
8V REG BLOCK |
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8V |
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C110 |
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R112,R113, |
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(D114,IC151,R170, |
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C133,R114. |
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BR |
BL |
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Y-CAP |
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R115,R116 |
C154,C159) |
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C111 |
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ERROR |
R117) |
9V REG BLOCK |
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(BK)(WH) |
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AMP |
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(Q165,ZD171,C171, |
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9V |
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(IC103) |
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R174,R175,R176) |
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PWR CTL BLOCK |
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(Q162,C161,R164, |
PWR CTL'H' |
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R163) |
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DVW-7000
3-20 |
3-21 |
CIRCUIT DIAGRAMS
1. POWER(SMPS) CIRCUIT DIAGRAM 1
No power.
BD101, R101 are defective.
IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE GO VIDEO ELECTRONICS CORPORATION. ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT. SPECIAL COMPONENTS ARE
SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION.
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER 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.
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(DVW-7000 Without) |
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12VA no power. |
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D110 is defective. |
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5.3VA no power. |
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D112 is defective. |
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Switching Error. |
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IC101 is defective. |
(DVW-7000 Without) |
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33V no power. |
2.5V, 3.3V no power. |
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D113 is defective. |
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D111 is defective. |
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No Power. |
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F101 is defective. |
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Switching Error. |
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IC103, 102 are defective. |
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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.
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. |
SR14370A
DVW-7000
3-32 |
3-33 |
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