1-7
1. Unplug the AC Power cord and connect a wire
between the two pins of the AC Power plug.
2. Set the AC Power switch to the "on" position (keep the
AC Power cord unplugged!).
3. Measure the resistance value between the pins of the
AC Power plug and the metal shielding of the tuner or
the aerial connection on the set. The reading should be
between 4.5 Mohm and 12 Mohm.
4. Switch "off" the set, and remove the wire between the
two pins of the AC Power plug.
Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:
·
Route the wire trees correctly and fix them with the
mounted cable clamps.
·
Check the insulation of the AC Power lead for external
damage.
·
Check the strain relief of the AC Power cord for proper
function.
·
Check the electrical DC resistance between the AC Power
Plug and the secondary side (only for sets which have a AC
Power isolated power supply):
·
Check the cabinet for defects, to avoid touching of any
inner parts by the customer.
SERVICE INSTRUCTION
Summary of Contents for FWM35/21
Page 16: ...4 1 SET BLOCK DIAGRAM 4 1 ...
Page 17: ...4 2 SET WIRING DIAGRAM 4 2 ...
Page 21: ...5 4 5 4 PCB LAYOUT FRONT KEY BOARD TOP VIEW ...
Page 22: ...PCB LAYOUT FRONT KEY BOARD BOTTOM VIEW 5 5 5 5 ...
Page 23: ...5 6 5 6 CIRCUIT DIAGRAM FRONT BOARD MCU PART ...
Page 24: ...5 7 5 7 CIRCUIT DIAGRAM FRONT BOARD MIC PART ...
Page 28: ...6 3 PCB LAYOUT MAIN BOARD_for 21 30 TOP VIEW 6 3 ...
Page 29: ...PCB LAYOUT MAIN BOARD_for 21 30 BOTTOM VIEW 6 4 6 4 ...
Page 30: ...6 5 6 5 CIRCUIT DIAGRAM MAIN BOARD AMP PART ...
Page 31: ...PCB LAYOUT MAIN BOARD_for 22 9940 000 01506 TOP VIEW 6 6 6 6 ...
Page 32: ...PCB LAYOUT MAIN BOARD_for 22 9940 000 01506 BOTTOM VIEW 6 7 6 7 ...
Page 43: ...8 2 8 2 PCB LAYOUT TAPE BOARD TOP VIEW PCB LAYOUT TAPE BOARD BOTTOM VIEW ...
Page 44: ...8 3 8 3 CIRCUIT DIAGRAM TAPE BOARD ...
Page 47: ...9 2 9 2 PCB LAYOUT POWER BOARD TOP VIEW PCB LAYOUT POWER BOARD BOTTOM VIEW ...
Page 48: ...9 3 9 3 CIRCUIT DIAGRAM POWER BOARD ...
Page 53: ...10 4 Wiring Disc Motor Inner switch Slide Motor Service Position ...