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B1
T1
a
c
SK2
b
D8
Re1
C8
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 HQ562 has a timer IC (IC1).
This IC controls TS2 in such a way that a current of 200
mA is supplied to the battery for about 8 hours, after which
TS2 switches to a trickle charging current of 25 mA.
D3 and D4 suppress high voltage peaks.
This circuit is not required in the HQ561 because in this
shaver the NiCD battery is continuously charged at 200
mA via R8.
The value of R8 equals the internal resistance of TS2.
B7. Battery
The 4/5A NiCd battery of the HQ561 has a capacity of
1200mAH.
The capacity of the AA NiMH battery of the HQ562 is
1100 mAH.
B8. Motor
The motor is of the permanent magnet type.
Zener diode D7 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 TS5 makes it impossible to switch the motor on when
the shaver is connected to the mains, D7 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.
NiMH
B2
D3
D1
D2
R1
D4
NiCd
B6
R8
B6
TS2
Ledn
Vin
Pwrs
Vcc
R7
Iosc
Disn
R2
Rs
IC1
Sco
R3
Rd
Enn
R4
Rc
En
C1
Sel
Gnd
Scan
Sci
B3
C3
IC2a
IC2b
R27
R25
SK1
R26
TS5
C12
C13
B7
R6
R5
A1
4/5A
NiCd
TS1
IC2c
R28
C2
B8
PM
D7
B5
D5
TS4
R30
D6
B4
L1
R31
IC2d
TS3
C14
R29
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