1 Safety Precautions
1.1. GENERAL GUIDELINES
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, ensure that all the protective devices such as insulation barriers, insulation papers shields are properly installed.
3. After servicing, check for leakage current checks to prevent from being exposed to shock hazards.
1.1.1. LEAKAGE CURRENT COLD CHECK
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Using an ohmmeter measure the resistance value, between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1M
Ω
and 5.2
Ω
.
When the exposed metal does not have a return path to the chassis, the reading must be
.
Fig. 1
1.1.2. LEAKAGE CURRENT HOT CHECK (See Figure 1.)
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5k
Ω
, 10 watts resistor, in parallel with a 0.15µF capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may
be used to make the hot checks, leakage current must not exceed 1/2 milliamp. Should the measurement is outside of the limits
specified, there is a possibility of a shock hazard, and the equipment should be repaired and re-checked before it is returned
to the customer.
3
RX-ES29GC / RX-ES29GS / RX-ES29GT
Summary of Contents for RX-ES29GS
Page 4: ...2 Caution for AC Mains Lead 4 RX ES29GC RX ES29GS RX ES29GT ...
Page 9: ...10 Operation Procedures 10 1 Main unit 9 RX ES29GC RX ES29GS RX ES29GT ...
Page 10: ...10 2 Remote control 10 RX ES29GC RX ES29GS RX ES29GT ...
Page 11: ...11 Information on MP3 11 RX ES29GC RX ES29GS RX ES29GT ...
Page 22: ...22 RX ES29GC RX ES29GS RX ES29GT ...
Page 24: ...24 RX ES29GC RX ES29GS RX ES29GT ...
Page 25: ...25 RX ES29GC RX ES29GS RX ES29GT ...
Page 28: ...28 RX ES29GC RX ES29GS RX ES29GT ...
Page 37: ...Example of LCD Display 37 RX ES29GC RX ES29GS RX ES29GT ...
Page 40: ...40 RX ES29GC RX ES29GS RX ES29GT ...
Page 42: ...16 2 Main P C B 42 RX ES29GC RX ES29GS RX ES29GT ...
Page 43: ...43 RX ES29GC RX ES29GS RX ES29GT ...
Page 70: ...24 Troubleshooting Flowchart CD Section Circuit 70 RX ES29GC RX ES29GS RX ES29GT ...
Page 71: ...71 RX ES29GC RX ES29GS RX ES29GT ...
Page 77: ...25 3 Cabinet Part List 25 3 1 Cabinet Parts Location 77 RX ES29GC RX ES29GS RX ES29GT ...
