ELETTRODOMESTICI
VIA CHECCHI 98
I 21013 GALLARATE
ITALY
Page 20 of 28
Tuesday, June 18, 2002
BOSCH 700 SERIES:
SERVICE INSTRUCTIONS FOR OVEN TESTING AND BASIC TROUBLESHOOTING
CONNECTION CABLE BETWEEN POWER AND DISPLAY BOARD - P1B (12POS) – double oven version
PIN FUNCTION NOTES
1 RESET THE POWER BOARD RESETS THE DISPLAY BOARD IF COMMUNICATION PROBLEMS OCCUR.
2 SINCRONIZZAZIONE
60HZ
3 RX COMMUNICATION LINE BETWEEN POWER AND DISPLAY BOARD.
4 TX COMMUNICATION LINE BETWEEN POWER AND DISPLAY BOARD.
5 RELAY ENABLE 1 PROVIDES THE HEATERS RELAYS ON THE POWER BOARD AND THE DLB RELAY ON THE AUX BOARD WITH POWER.
THIS LINE IS FOR UPPER CAVITY ONLY.
6 RELAY ENABLE 2 PROVIDES BOTH CAVITY LATCH MOTOR RELAYS WITH POWER.
7 RELAY ENABLE 3
PROVIDES THE HEATERS RELAYS ON THE POWER BOARD AND THE DLB RELAY ON THE AUX BOARD WITH POWER.
THIS LINE IS FOR UPPER CAVITY ONLY.
8 NOT USED
9 LOWER DOOR SWITCH THE DOOR SWITCH LINE IS ROUTED ACROSS THE POWER BOARD BUT ACTUALLY READ BY THE DISPLAY BOARD.
10 UPPER DOOR SWITCH THE DOOR SWITCH LINE IS ROUTED ACROSS THE POWER BOARD BUT ACTUALLY READ BY THE DISPLAY BOARD.
11
UPPER WORKING FAN
HIGH SPEED
ACTIVATES THE UPPER CAVITY WORKING FAN SECOND SPEED
12 LOWER WORKING FAN
HIGH SPEED
ACTIVATES THE LOWER CAVITY WORKING FAN SECOND SPEED
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