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B1
T1
a
c
D3a
SK2
b
D8
R1
C8
Re1
SK2c-a 200-240V
SK2c-b 100-130V
B1 power plug
B2 rectifier
B3 electronic on/off switch
B4 up-converter
B5 motor control
B6 charging circuit
B7 battery
B8 motor
B6. Charging circuit
As NiMH batteries may not be continuously loaded with a
high charging current, the HQ564 has a timer IC (IC1).
This IC controls TS4 in such a way that a current of 200
mA is supplied to the battery for about 8 hours, after which
TS4 switches to a trickle charging current of 25 mA.
D5 and D6 suppress high voltage peaks.
This circuit is not required in the HQ563 because in this
shaver the NiCd battery is continuously charged at 200 mA
via R11.
The value of R11 equals the internal resistance of TS4.
B7. Battery
The 4/5A NiCd battery of the HQ563 has a capacity of
1200mAH.
The capacity of the AA NiMH battery of the HQ564 is
1100 mAH.
B8. Motor
The motor is of the permanent magnet type.
Zener diode D4 suppresses high voltage peaks during
shaving.
Normally, this diode is placed between the motor solder
tags to suppress radio interference (RIF) in the mains as
well.
As TS1 makes it impossible to switch the motor on when
the shaver is connected to the mains, D4 is now placed on
the PCB.
GENERAL
Some resistors are not indicated in the electrical diagram.
These are resistors of 0 ½ which serve as jumpers across
print tracks or as interconnectors between the layers of the
double-layer PCB.
NiCd
NiMH
B6
B2
D5
R8
D2
D6
Disn
Vin
Pwrs
Iosc
R5
Rs
IC1
R6
Rd
R7
Rc
Sel
Gnd
Scan
C4
B6
R11
TS4
R9
D3b
C5
Vcc
En
Full
Emp
TS3
Enn
Ledn
Sco
IC2
Sci
Rreo
Duty
Dis
Mains
Gnd
Ncel
Rref
R2
R3
B3 B4 B5
B7
D2
C2
L1
Vcc
Upc
Vac
C6
Moo
R4
Vbli
C3
Vbr
A1
4/5A
Tacc
NiCd
TS2
Tamb
Smot
Ctim
Eoo
C1
SK1
TS1
B8
PM
D4
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