Poly-Spectrum-8/V (Technical Manual)
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5. Current Repair
5.1. General Requirements
The repair of the system requires special training of technical
staff, special equipment and service software. The manufactur-
er and its representatives have everything necessary for this.
The repair connected with the opening of electronic units is
prohibited. The repair of computer equipment can be performed
by companies specialized in computer equipment servicing.
The current repair of the system includes the repair of some
component parts and cables. If the component parts are con-
nected to the system, the repair is prohibited.
When performing the repair, all units must be switched off.
5.2. ECG Cables (NS003103.009,
NS003103.010)
The electrical schematic of ECG cable is shown in Fig. 12.
The ECG cable is examined externally, and the circuit is
checked for short circuit or break between the screen and the
wire and between the wires. In case the cable is broken or
short-circuited, replace it or cut it if the cable length is sufficient.
To check or replace the resistors R1-R4 (TVO-
0.5 10kΩ± 20%),
disassemble the cable connectors.
