STANDARD CIRCUIT DIAGRAM
NOTE 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
follo win g c onditions.
(1)Input signal : Colour bar signal
(2)Setting positions of
each knob/button and
variable resistor
(3)Internal resistance of test er
:DC 20k
/V
(4)Oscilloscope sweeping time
:H
20µS/div
:V
5mS/div
:Others
Sweeping time is
specified
(5)Voltage values
:All DC voltage values
Since the voltage values of signal circuit vary to some extent
according to adjustments, use them as reference values.
3.INDICATION OF PARTS SYMBOL [EXAMPLE]
In the PW board
:R1209
R209
4.IND ICATIONS ON THE CIRCUIT DIAGRAM
(1)Resistors
Resistance value
No unit :[
]
K
:[K
]
M
Rated allowable power
No indication :1/ 16 [W]
Others :As specified
Type
No indicatio n
:Carbon resistor
OMR
:Oxide me tal film res istor
MFR
:Metal film resistor
MPR
:Metal plate resistor
UNFR
:Uninflammable resistor
FR
:Fusible resistor
Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2)Capacitors
: Original setting position
when shipped
5.N OT E FOR RE PAIRIN G SERVICE
This mod el's power cir cuit is pa rtly diffe rent in the GND. The
difference of the GND is shown by the LIVE : ( ) side GND and the
ISOLATED(NEUTRAL) : ( ) 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 measure
with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND
and ISOLATED(NEUTRAL) side GND at 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 ci rcuit and
circuit constants may be subject to change for i mprovement
without any not ic e.
NOTE
Due improvement in performance, some part numbers show
in th e ci rcui t diag ram may not agre e wi th tho se i ndic ate d i n
the part list.
When ordering parts, pl ease use t he numbers t hat appear
in the Parts List.
Type
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
:[
µ
H]
Others
:As specified
(4)Power Supply
:B1
:9V
:5V
Respective voltage values are indicated
(5)Test point
:T est point
:Only test point display
(6)Connec ting metho d
:Connector
:Wrapping o r solder ing
:Receptacle
(7)Ground symbol
:LIVE side ground
:ISOLATED(NEUTRAL) side g round
:EARTH ground
:DIGITAL ground
:[M ]
Capacitance value
1 or higher :[pF]
less than 1
:[µF]
Withstand v oltage
No indication :DC50[V]
Others :DC withstand voltage [V]
AC indicated
:AC withstand voltage [V]
Electrolytic Capacitors
47/50[Example]:Capacitance value [µF]/withstand voltage[V]
No indication
:Ceramic capacitor
:B2 (12V)
AV-27F703/S,AV-27F713/S,AV-27F803
/S
MAIN PWB CI RCUIT DIAGRA M
CRT SOCKET PWB CIRCUIT DIAGRAM
AV SEL PWB CIRCUIT DIAGRAM
FRONT CONTROL PWB CIRCUIT DIAGRAM
LED & POWER SW PWB CIRCUIT DIAGRAM
PIP PWB CIRCUIT DIAGRAM
Jun. 2002 No. 52005