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# 177871-B1
Product: CD-5
Subject: Display Failure
Symptom: Flashing VFD displays are being observed on CD-5 units.
Reason: The existing ground trace breaks at the pad leaving no ground. This change
affects PCB P/N 177400 and has been added to all production units starting the week of
12/17/95.
Solution: Repair ground trace.
1. Refer to the disassembly/ assembly procedures to access the Digital PCB.
2. Compare the PCB to the figure below. If a piece of jumper buss wire is present from the
VFD Support tab (closest to pin 21 of U402) to the ground trace, the modification has been
done. If it is not present, proceed to step 3.
3. Scrape the ground trace a 1/4" from the VFD Support tab until the copper is visible.
4. Install a jumper buss wire from the VFD Support tab to the broken ground trace. Be sure
to wrap the wire around the tab once or twice before soldering it to the ground trace.
Summary of Contents for Lifestyle CD5 Series I
Page 6: ...5 Figure 1 CD5 Block Diagram Sheet 1 of 2...
Page 7: ...6 Figure 2 CD5 Block Diagram Sheet 2 of 2...
Page 19: ...18 See Figure 6 for a side view of this assembly Figure 3 Labelled Exploded View...
Page 30: ...29 Figure 12 Passive Filter Network and Test Setup...
Page 33: ...32 Figure 13 Digital PCB Adjustment Locations...
Page 36: ...35 Figure 14 Exploded View...
Page 62: ...61 T303 AM Front End Tuning Module INTEGRATED CIRCUIT DIAGRAMS TUNER FM Front End Module...
Page 64: ...63 U402 Microcontroller 68HC05C12 INTEGRATED CIRCUIT DIAGRAMS...
Page 65: ...64 U501 ASP LA9210M INTEGRATED CIRCUIT DIAGRAMS...
Page 66: ...65 U502 DSP LC7867 INTEGRATED CIRCUIT DIAGRAMS...
Page 67: ...66 INTEGRATED CIRCUIT DIAGRAMS U505 Microcontroller 68HC05P7 U506 D A Converter LC7883M...
Page 69: ...68 Figure 18 RC5 Schematic...
