Philips HQ342A Service Manual

Service

Domestic Appliances and Personal Care

Shaver ”Marco Polo”

HQ 342/A

GENERAL

The functions of the SMPS-unit (Switched Mode Power Supply) are the following: a. Changes the connected mains voltage into a DC voltage for the supply of the motor through a switching transistor (incorporated in IC1). b. Controls the average supply voltage of the motor so that the rpm remains constant with a heavier load (e.g. due to heavy beard or polluted shaving heads). c. When the motor is blocked, it limits the current flowing through the motor. d. Prevent the SMPS-unit from being damaged in case of a short circuit.

HINTS FOR REPAIRS

- Remove the shaving unit, to prevent damages during repairs.

- Remove screw A (1x).

- Put the shaver on the table and remove the tailpart (item 15) from the shaver.

- Detach the motor clampings springs (item 11) on the bearing block with a small screwdriver.

- Unlock peg clamping ’Z’ (2x) between frame (item 18) and hair chamber (item 10).

- To remove the trimmer, first disassemble the trimmer slide by pushing the locking pegs (2x ’X’).

- Make room between trimmer and cover (”Y’) with a small screwdriver and take the trimmer out.

- The assembly must be carried out in reverse order.

PRODUCTS MEETS THE REQUIREMENTS REGARDING INTERFERENCE SUPPRESION ON RADIO AND TELEVISION.

SAP Coding HQ 342

100-240 V

5% 1W

SK1

D1 D4 1N4007

1mH

385V

R2 1%

1M74

16 15 14 13 12 11 10 9

12345678

IC1

385V

OF815

45k3

10n

250V

26E1

R55%L2

820

R1 1%

TECHNICAL DATA

Voltage : 100-240V, 50/50 Hz Power consumption : Motor depending Motor voltage : 54 V Power supply : SMPS Speed of cutters : >2100 r.p.m. Shaving heads : 2xHQ3 Comfort control : fixed setting Screwdriver : 4822 395 50263 Trimmer : pop-up system

CAUTION! WHILE CHECKING THE P.C.-BOARD REMEBER THAT MOST COMPONENTS AND MOTOR ARE ENERGIZED BY MAINS VOLTAGE.

1mH

470p 250V

- AFTER THE PRODUCT HAS BEEN REPAIRED IT SHOULD FUNCTION PROPERLY AND HAS TO MEET THE SAFETY REQUIREMENTS AS LAID DOWN OFFICIALLY ESTABLISHED AT THIS MOMENT.

Published by Philips Domestic Appliances and Personal Care Printed in The Netherlands Copyright reserved Subject to modification

4322 277 00111

02/09

HQ 342/A

8 9

15 16

1.8x10/T8

1 4222 036 01330 Protection cap 2 4222 036 01340 Head housing 3 4222 036 02770 Cleaning brush 4 4822 690 30471 HQ3 shaving head 5 4222 036 02780 Head holder

6 4822 321 10095 Flex EU

- 4822 321 10096 Flex GB

- 4822 321 10148 Flex AUS/NZ

- 4822 321 10344 Flex USA/CDN

- 4222 036 01590 Flex RA

- 4222 036 02220 Flex CN 7 4222 036 01360 Hairchamber 8 4222 036 01370 Gearwheel 9 4222 036 01720 On/off knob

10 4222 036 01700 Housing

21 22

11 4822 361 30455 Motor 54V 12 4822 122 31177 Capacitor 470pF 13 4222 036 01390 Trimmer 14 4222 036 01730 Cover 15 4222 036 02810 Power module

16 4222 036 01380 Lever 17 4222 036 01420 Frame 18 4822 522 33548 Pinion 19 4222 036 03080 Inlet 20 4822 492 63165 Motor clamp

21 4822 362 40181 Carbon brush 22 4822 492 62703 Contact spring

A 4822 502 30526 s.t. screw 1.8x10/T8

4222 036 03070

Pouch