SAFETY 
INSTRUCTIONS 
.SAFETY 
CHECK 
AFTER SERVICING 
Confirm the specified insulation resistance  between power cord plug prongs  and  externally exposed parts 
of 
the set 
is 
greater  than 
10 
Mohms, but for  equipment with external antenna terminals (tuner, receiver, etc.) and 
is 
intended for 
~ 
or 
[A], 
specified  insulation  resistance  should  be  more than  2.2 Mohms  (ground  terminals,  microphone  jacks, 
headphone jacks. line-in-out jacks etc.) 
PRECAUTIONS DURING SERVICING 
1. 
Parts identified by the 
~ 
symbol parts are critical for safety. 
Replace only with parts number 
specified. 
2.  In  addition  to safety,  other parts  and  assemblies  are  specified  for  conformance  with  such  regulations 
as 
those 
applying to spurious radiation.  These must also be replaced only with specified replacements. 
Examples:  RF  converters,  tuner  units,  antenna  selector  switches,  RF  cables,  noise  blocking  capacitors,  noise 
blocking filters, etc. 
3. 
Use 
specified internal wiring.  Note especially: 
1) 
Wires 
covered with 
PVC 
tubing 
2) 
Double insulated 
wires 
3) 
High 
voltage leads 
4. 
Use 
specified insulating materials for hazardous 
live 
parts.  Note especially: 
1)  Insulation Tape 
2) 
PVC 
tubing 
3) 
Spacers (Insulating Barriers) 
4) 
Insulation sheets for transistors 
5. 
When 
replacing 
AC 
primary  side  components  (transformers,  power  cords, noise  blocking capacitors, etc.), wrap 
ends 
of 
wires 
securely about the terminals before soldering. 
6.  Observe that wires 
do 
not contact heat producing parts (heatsinks, oxide metal 
film 
resistors, fusible resiston, etc.). 
7.  Check that replaced wires do not contact sharp edged or pointed parts. 
8. 
Also check areas surrounding repaired locations. 
9. 
Use 
care that foreign objects (screws, solder droplets, etc.) do not remain inside the set.