Grundig SC303D(C)
SC 303 AUTOREVERSE RDS EON
9 18209 G SB 11-00
GM1303P6674861
Made in Portugal
uP: Motorola MC68HC11E9 (PLCC-52)
OP 5.42
c GRUNDIG
1D35E
QZNS9324
(8Mhz)
dump sc303d_nc.eep no code active
dump sc303d_1448.eep code 1448
000000 14 EB 4E 48 B7 12 A8 57 - F2 FF FF FF FF FF FF FF
code -- --
but there is control bits for code!
HC11 EEPROM PROGRAMMING:
-on board remove 4k7 smd on reset line (pin 17)
-on board remove 2k2 smd on rxd line (pin 20)
-on board remove 2k2 smd on txd line (pin 21)
-use polish programmer with MAX232
-(hc11 pin 1 is upper-middle mark with dot, pin 2 is left and so on...
-connect hc11 pin 1 to PC GND
-connect hc11 pin 2 to hc11 pin 1
-connect hc11 pin 17 via 1k to max pin 12 & max pin 13 to PC com-rts
-connect hc11 pin 20 via 1k to max pin 9 & max pin 8 to PC com-txd
-connect hc11 pin 21 via 1k to max pin 10 & max pin 7 to PC com-rxd
-connect +12V to radio (radio is off)
-use MC68HC11.exe (motor11.exe)
-comunication must be active now!
-load file *.eep to buffer with R
-send buffer to eeprom with P
(if loading stops before 1ff adr - try again)
(i am using MoSlo v1.32b for slow down my 533 Celeron on 45%)
(programm working in dos-prompt of windows-me)
-if loading to eeprom is finished, remove programmer
and +12V from radio, remove jumper pin1-2, put back resistors
IF YOU ARE USED EEP FILE WITH CODE
-switch on radio, on display you can see DISPLAY
-press AS for 5 sec
-display will be change CODE and then 10 - - - -
-enter 4 code digits with buttons 1 2 3 & 4
-press AS for 5 sec
-ENJOY!
