3.2.
G a i n i ng access to a n d replac i n g of pa rts
3.2. 1 . CABI N ET PAN E LS
The top- and bottom plates can be taken off by sl id i ng them backwards after fi rst h av i ng the corresponding
screws ( M3) removed.
The side plates can be removed separately by remov ing the correspond ing handle-bracket screw.
3.2.2. SCA L E LAMP, I L LUMI NATION OF I N D I CATO R
- Remove the top-plate
- U nso lder the connection wi res ( E , Fig. 33) of the pi lot lamp
- Take out the lamp
- Sl ide the spare lamp until the stop
- Resolder the connection wires
- Demount the ind icator accord ing 3.2.5.
- Pu l l out the lamp holder and repl ace the lamp
3.2.3. TU N I N G CAPAC ITOR
- Remove the top· and side plates
- Set the tuning short before the right stop
- Loosen the grub screw of the drive
- Unsolder the connections of the tuning capacitor
- Loosen the 3 holding screws; pull out the tuning capacitor backwards
- Adjust the poi nter accord ing to 3.2.5.2. after mou nting the drive
3.2.4. U N I T
1,
PUSH-BUTTONS, U N I T
3
- Demount the tuning capacitor accord ing to 3.2.3.
- U nso lder the connection of u nit 1 , loosen screws F ( F ig . 33) and take out u n it 1
- Demount push·button unit 802. The soldering spots, ind icated in F ig. 40 must be soldered free.
- Take out and replace the push-button u n it i nclud i ng the pri nted wiring board
- Unsolder the mass con nection of unit 3
- Take out u nit 3 sidewards
N otes concerning u n it
3
- The solderi ng temperature (260 °C) may not exceed a time of 3 seconds.
- M i nimum distance from the lens is 2 mm
- Use a tong between soldering spot and d iode body to conduct the heat.
3.2.5.
TU N I NG F R EQUE NCY, D R I V E , SCA L E AND I N D I CATO R
- Remove the top plate and the buttons SWE E P W I DTH and H F AM PLI TU D E
- Set t h e drive at approx imately the right stop
+ Demount the mains switch mech anically by loosening first the rear hexagona l nut and then the front
ornamental ri ng.
Mounting up in reversed sequence
+ Demount potentiometer SWE E P W I DTH mechanica l l y
+ Unsolder the connections o f connector LF I N and 1 kH z/SW E E P O U T
- Remove t h e 4 screws A ( F ig. 36)
- Remove the 4 screws B ( F igs. 34 and 35)
31
Summary of Contents for PM5324
Page 1: ...HF Generator 100kHz 110MHz PM5324 9452 053 240 1 9499 450 05511 730801 1 01 ...
Page 15: ...14 Fig 4 Front view Fig 5 Rear view ...
Page 43: ...Fig 33 Front view with item numbers Fig 34 Bottom view ...
Page 44: ...44 Fig 35 Top view Fig 36 Left side view ...
Page 45: ...45 0 0 0 0 1 ji I I MAB225 Fig 37 Scale dri ve n ...
