Advertisement
AV-32WP2EN/AV-32WP2EP
AV-32WP2EN
AV-32WP2EP
STANDARD CIRCUIT DIAGRAM
mNOTE ON USING CIRCUIT DIAGRAMS
1.SAFETY
The components
identified by the /\ symbol and shading
are critical for safety. For continued safety replace safety
critical components only with manufactures recommended
parts.
2.SPECIFIED
VOLTAGE
AND
WAVEFORM
VALUES
The voltage and waveform values have been measured
under
the following conditions.
(1)Input signal
(2)Setting positions
of each knob/button
and variable resistor
:PAL Colour bar signal
:Original
setting
position
when shipped
(3)Internal resistance of tester
:DC 20kQ/V
(4)Oscilloscope sweeping time
iH
=> 20US/div
mY
= 5mS/div
:Others
=> Sweeping
time is
specified
(5)Voltage values
* Since the voltage values of signal circuit vary to some
extent
according to adjustments, use them as reference values.
:All DC voltage values
3.INDICATION
OF PARTS SYMBOL[EXAMPLE]
ein the PW board
:R1209-R209
4.INDICATIONS ON THE CIRCUIT DIAGRAM
(1)Resistors
Resistance value
No unit
{Q]
K
{KQ]
M
[MQ]
Rated allowable power
No indication
:1/6[W]
Others
:As specified
eType
No indication
:Carbon resistor
OMR
:Oxide metal film resistor
MFR
:Metal film resistor
MPR
:Metal plale resistor
UNFR
:Uninflammable resistor
FR
:Fusible resistor
* Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2)Capacitors
eCapacitance value
tor higher
:[pF]
less than 1
[pF]
eWilhstand voltage
No indication
:DC50[V}
Others
:DC withstand voltage[V]
AC indicated
:AC withstand voltage[V]
* Electrolylic Capacitors
47/50[Example]:Capacitance value[pF |/withstand voltage[V ]
No.51237
eType
No indication :Ceramic capacitor
MY
:Mylar capacitor
MM
:Metalized mylar capacitor
PP
:Polypropylene capacitor
MPP
:Metalized polypropylene capacitor
MF
:Metalized film capacitor
TF
:Thin film capacitor
BP
:Bipolar electrolytic capacitor
TAN
'Tantalum capacitor
(3)Coils
No unit
[pH]
Others
'As specified
(4)Power Supply
——_79_-_
.D1
a
me
2B 2(12V)
me
Clim
:oV
Moor
:5V
* Respective voltage values are indicated.
(5)Test Point
: Test point
: Only test point display
(6)Connecting method
CI
: Connector
: Wrapping or soldering
O
—>—
=+ = : Receptacle
(7)Ground symbol
1:
LIVE side ground
wy
: ISOLATED(NEUTRAL) side ground
—
: EARTH ground
vu
: DIGITAL ground
5.NOTE FOR REPAIRING
SERVICE
This model's power circuit is partly different in the GND.
The
difference of the GND is shown by the LIVE : (L) side GND and
the ISOLATED(NEUTRAL) : ( ar) side GND.
Therefore, care
must be taken for the following points.
(1) Do not touch the LIVE side GND or the LIVE side GND and
the ISOLATED(NEUTRAL)
side GND
simultaneously. If the
above
caution
is not respected,
an electric shock
may
be
caused. Therefore, make sure that the power cord is surely
removed from the receptacle when, for example, the chassis
is pulled out.
(2)Do
not
short
between
the
LIVE
side
GND
and
ISOLATED(NEUTRAL)
side GND or never measure
with a
measuring apparatus (oscilloscope, etc.) the LIVE side GND
and ISOLATED(NEUTRAL)
side GND
al the same time. If
the above precaution is not respected, a fuse or any parts
will be broken.
©} Since the circuit diagram is a standard one, the
circuit and circuit constants
may be subject to
change for improvement without any notice.
Aug. 1997
Advertisement
