SenseOpen/HwAnalysis/Senseo HD78XX

Components overview

 * 24C02 EEPROM, serial I2C bus
 * 46R47 8bit A/D Type OTP MCU controller (probably a Holtek HT46R47 )
 * Bleckmann boiler SHD 31080 (230V, 1400W)
 * water level hall sensor (type?)
 * NTC thermistor for water temperature measurement (10k@25°C type?)
 * ULKA vibration pump (high-flow micropump), HF model (22W) or ER model (type EP8R, 42W)
 * BT139 triac
 * interference suppression capacitor
 * Capacitors
 * Diodes
 * Resistors
 * 1 red LED
 * 3 micro switches

Testpoints

 * TP1: between R1 and R5/, LP/LH
 * TP2: N
 * TP3:
 * TP4: between AMP4 and Q2, NP (pump)
 * TP5: GND, at D2
 * TP6: VDD, at D3 and C2
 * TP7: between C1/C11 and D1
 * TP8: liquid level mini PCB, between C7 and JX.1
 * TP9: liquid level mini PCB, between C7 and JX.2
 * TP10: liquid level mini PCB, between R19 and U3
 * TP11: between R4 and Q2
 * TP12: between R2 and TRIAC
 * TP13: between R14 and S2
 * TP14: between R15 and S1
 * TP15: between R16 and S3
 * TP16:
 * TP17: between R7 and R3/ uC Pin 15 / PA7
 * TP18: between R2 and uC Pin 18 / PA4/TMR
 * TP19: between R14 and uC Pin 2 / PA2
 * TP20: between R15 and uC Pin 3 / PA1
 * TP21: between R16 and uC Pin 4 / PA0
 * TP22:
 * TP23: between R13 and D4
 * TP24: EEPROM Pin 5 / SDA line
 * TP25: at uC Pin 5
 * TP26: between R20 and uC Pin 1 / PA3/PFD
 * TP27: EEPROM Pin 8 / WC line, uC Pin 10 / PD0/PWM
 * TP28:
 * TP29: between R9 and uC Pin 7
 * TP30:
 * TP31: between R8 and uC Pin 11 / RES
 * TP32: between R3 and uC Pin 16 / PA6
 * TP33: between R1 and
 * TP34: between R4 and R20