From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Error in the Phantom II wiring diagram concerning a new accessory distribution board.
| Identifier | ExFiles\Box 168b\2\ img212 | |
| Date | 13th November 1930 | |
| X7560. S/W EVC from H.{Arthur M. Hanbury - Head Complaints} Copy to F.N. " " Frith 9/184 H16/EK13.11.30 X7560 X7741 Re: Phantom II Wiring Diagram. Will you kindly refer to your Blue Print No.F81832 (3237) which is a wiring diagram. Reading the instructions for the use of the new accessory distribution board which accompanied this print, we feel that there is an error in the print which causes it to disagree with the instructions. It is stated that the new board will have two feed wires, one which does not register on the ammeter and the other which does. The Print seems to indicate that the starter switch is on the former but that all other current using accessories are still on the latter. That is to say that the simultaneous use of various accessories about the body, might still strain the ammeter. Should not the connection, which is shown on the diagram, connecting the right-hand terminal on the board to the middle terminal, be corrected so that the left hand terminal is connected to the middle. There is a further point of interest to us in connection with the same matter. Cigar lighters, which have a heavy consumption, are most frequently fitted in the rear compartment, and it seems to us that a cable should be carried back through the accessory board to the rear compartment junction box for these heavy currents and in addition to the one that now goes to the same spot for the body lights. It is not in fact possible to use the middle terminal on the accessory board on the dash for heavy currents in the back of the car without this additional cable from the separate fuze. H.{Arthur M. Hanbury - Head Complaints} | ||