Philips PM32671 Service Manual page 108

6-16
6 . 7 . 2 . Dismantling
Dismantling the probe (see Fig.
The front part 11 of the probe can be screwed from the rear part 13. Item 11 can then be slid from 12 and 13.
The RC combination 12 is soldered t o 13. For replacement of 12 refer t o the next section.
Dismantling the compensation box (see Fig. 6.13)
Unscrew the ribbed collar of the compensation box t o the cable. The case 14 can then be slid sideways off the
compensation box. The electrical components of the printed-wiring board are then accessible.
9
6.13.
Fig. Mechanical parts
6 . 7 . 3 . Replacing parts
Assembling the probe
A new RC network i s slid over the cable nipple, after which the cable core
When the measuring probe is assembled, the RC network must be a t dead centre in the probe tip.
Replacing the cable assembly
Dismantle the compensation box.
Unsolder the connection between the inner conductor and the printed-wiring board. Keep the frame of the
compensation box steady and loosen the cable nipple with a 5 mm spanner
the cable and f i t it, working in the reverse order.
Replacing the BNC
6.7.4.
Dismantle the compensation box.
Unsolder the connection t o the printed-wiring board. Hold the frame of the compensation box firmly and
loosen the BNC with a 3/8 inch spanner. Replace the BNC and f i t it, working in the reverse order.
Replace the probe tip
The damaged tip can be pulled out by means of a pair of pliers. A new tip must be firmly pushed in.
6.13)
- -
MAT 677
i s soldered on t o the resistor wire.
on
the hexagonal part. Replace