Jvc HRS 5800 E Owners Manual 2

Page 1

Important Safety Precautions

Prior to shiprmnt from the factory. JVC products are strictly inspected to conform with the recognized product safety and electrical codes of
the countries in which they are to be sold. However, in order to maintain such compliance. it is equally important to implement the following

precautions when a set is being serviced.

oPrecautions during Servicing

Locations requiring special caution are denoted by labels and
inscriptions on the cabinet. chassis and certain parts of the
product. When performing service, be sure to read and comply
with these and other cautionary notices appearing in the opera-
tion and service manuals.

Parts identified by the [A symbol and shaded [@833 parts are

critical for safety.

Replace only with specified part numbers.

Note: Parts in this category also include those specified to
comply with X-ray emission standards for products using
cathode ray tubes and those specified for compliance
with various regulations regarding spurious radiation
emission.

. Fuse replacemem caution notice.

Caution for continued protection against fire hazard.
fleplace only with same type and rated fuselsl as specified.

Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing

2) Double insulated wires

3) High voltage leads

Use specified insulating materials for hazardous live parts. Nate
especially:

1) lnsulation Tape
2i PVC tubing

3) Spacers 5) Barrier
4) Insulation sheets for transistors

When replacing AC primary side components (transformers,
power cords, noise blocking capacitors, etc.) wrap ends of wires
securely about the terminals before soldering.

Nil-use %

. Observe that wires do not contact heat producing parts (heat-

sinks, oxide metal film resistors, fusible resistors, etc.)

. Check that replaced wires do not contact sharp edged or pointed

parts.

When a power cord has been replaced, check that 10-15 kg of
force in any direction will not loosen it.

10.

Also check areas surrounding repaired locations.

11.

Products using cathode ray tubes (CRTs)

In regard to such products, the cathode ray tubes themselves,
the high voltage circuits, and related circuits are specified for
compliance with recognized codes pertaining to X-ray emission.
Consequently, when servicing these products. replace the cath-
ode ray tubes and other parts with only the specified parts.
Under no circumstances attempt to modify these circuits.
Unauthorized modification can increase the high voltage value
and cause X-ray emission from the cathode ray tube.

12. Crimp type wire connector

in such cases as when replacing the power transformer in sets
where the connections between the power cord and power
transformer primary lead wires are performed using crimp type
connectors, if replacing the connectors is unavoidable, in order
to prevent safety hazards, perform carefully and precisely
according to the following steps.

1) Connector part number : E03830-001
2) Required tool : Connector crimping tool of the proper type
which will not damage insulated parts.
3) Replacement procedure
(1) Remove the old connector by cutting the wires at a point
close to the connector.
Important : Do not reuse a connector {discard it).

13°47
\|/

$5

Cut close to connector
Fig. 3

i2)Strip about 15 mm of the insulation from the ends of the
wires. If the wires are stranded. twist the strands to avoid

frayed conductors.

Fig. 4

l3) Align the lengths of the wires to be connected. Insert the
wires fully into the connector.

Metal sleeve

Connector

Fig. 5

(4) As shown in Fig. 6, use the crimping tool to crimp the
metal sleeve at the center position. Be sure to crimp fully
to the complete closure of the tool.

Crimping tool

Fig. 6

i5iChecl< the four points noted in Fig. 7.

Crimped at approx. center
of metal sleeve

Not easily pulled free

Conductors extended

Wire insulation recessed
more than 4 mm

Fig. 7

Page 2

0 Safety Check after Servicing

Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned
to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety
standards.

1. Insulation resistance test
Confirm the specified insulation resistance or greater between power cord plug prongs and exter-
nally exposed parts of the set (RF terminals. antenna terminals, video and audio input and output
terminals, microphone jacks, earphone jacks, etc). See table 1 below.

2. Dielectric strength test
Cenfirm specified dielectric strength or greater between power cord plug prongs and exposed
accessible parts of the set (RF terminals. antenna terminals. video and audio input and output
terminals, microphone jacks, earphone jacks, etc). See table 1 below.

3. Clearance distance d
When replacing primary circuit components, confirm specified clearance distance (d), (d') between
soldered terminals, and between terminals and surrounding metallic parts. See table 1 below.

Chassis

' Power cord.

Fig. 8 primary wire

4. Leakage current test
Confirm specified or lower leakage current between earth ground/power cord plug prongs and

externally exposed accessible parts (RF terminals. antenna terminals, video and audio input and a in
output terminals, microphone jacks, earphone jacks, etc.l. Exsternellv\ E23 I 51
Measuring Method: (Power ONI exposed L- ® .

Insert load Z between earth ground/power cord plug prongs and externally exposed accessible parts. accessible part

Use an AC voltmeter to measure across both terminals of load 2. See figure 9 and following table 2. Fig, 9

5. Grounding lClass I model only)
Confirm specified or lower grounding impedance between earth pin in AC inlet and externally
exposed accessible parts (Video in, Video out, Audio in, Audio out or Fixing screw etc.).
Measuring Method:
Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications.

AC inlet 0 O O 'E x no sad accessible part Grounding Specifications
0 0 Region Grounding Impedance (2)
/ USA a Canada 2 g 01 ohm
Earth pin 3 Europe & Australia 2 g 0.5 ohm
Milli ohm meter
Fig. 10
AC Line Voltage Region Insulation Resistance in) Dielectric Strength Clearance Distance (d), (d')
100 v AC1 kV 1 minute d,d'§ 3 mm
1oom24ov pa" Rg1m/soov Dc AC 1.5 IN 1 minute d,d§ 4mm
110:0130v USA81Canada - Aceoov1 minute d,d'_2_ 3.2 mm
AC 3 kV 1 minute d 2 4 mm
110 to 130 V '-
00 240 v Europe & Australia a g 10 MS). 1500 V DC AC 1 5 kV1 3:33:31 d. g 3 mm (power cord)
2 m ' (Class I) d g 6 mm (Primary wire)
Table 1 Specifications for each region
AC Line Voltage Region Load 2 Leakage Current (ii a, b. c
100 V Japan ° ":1: ° i g 1 mA rms Exposed accessible parts
0.15 uF
110 to 130 V USA at Canada m m i § 0.5 mA rms Exposed accessible parts
i g 0'7 mA peak Antenna earth terminals
2 it ' S
110 to 13: v Europe & Australia k ' g 2 mA dc
4 V '
220 to 2 O-NW-O ' - 0'7 mA peak other terminals
so It 1 g 2 mA dc

Table 2 Leakage current specifications for each region
Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.

II