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ZRY-316
Manual
Vdr Part; Vdr Electrical Troubleshooting Guide; Power(Smps) Circuit - Zenith ZRY-316 Manual
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:
Installation and operating manual
(56 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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VDR ELECTRICAL TROUBLESHOOTING GUIDE
1. POWER(SMPS) CIRCUIT
No 3.8VA
NO
Is the F101
Normal?
YES
NO
Is the BD101
Normal?
YES
NO
Is the TH01
Normal?
YES
NO
Is Vcc (14V-17V)
supplied to IC101 Pin7?
YES
NO
Are the D122
normal?
YES
NO
Is there about 2.5V
at the IC106 Pin1?
YES
NO
Is the D123
normal?
YES
NO
Is the D124
Normal?
YES
NO
Is the D125
Normal?
YES
Power Line of Main
PCB(VDR) is short
VDR PART
Replace the F101
(Use the same Fuse)
Replace the BD101
Replace the TH01
Is the IC107,Q111
Normal?
NO
Check or Replace
the IC107,Q111
Replace the D122
Replace the IC106
Replace the D123
Replace the D124
Replace the D125
3-66
No 3.3V
NO
Is there about 3.8V
at the IC154 pin1?
YES
NO
Is there about 3.3V~ 5V
at the IC154 pin4?
YES
Check the IC154 and
Replace
Check or Replace
the D122
Check the 'DVD PWR CTL
"H"' signal from µ-com
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Chapters
Section 2 Exploded Views
8
Section 3 Electrical
12
Section 5 Rl-05 Loader Part
113
Table of Contents
Troubleshooting
VCR ELECTRICAL TROUBLESHOOTING GUIDE
15
VDR PART
55
ELECTRICAL TROUBLESHOOTING GUIDE
114
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