AV-14F1P
STANDARD CIRCUIT DIAGRAM
n NOTE ON USING CIRCUIT DIAGRAMSl Type
1. SAFETYNo indication: Ceramic capacitor
The components identified by the !!!!! symbol and shading areMY: Mylar capacitor
critical for safety. For continued safety replace safety criticalMM: Metalized mylar capacitor
components only with manufactures recommended parts.PP: Polypropylene capacitor
MPP: Metalized polypropylene capacitor
2. SPECIFIED VOLTAGE AND WAVEFORM VALUESMF: Metalized film capacitor
The voltage and waveform values have been measured under theTF: Thin film capacitor
following conditions.BP: Bipolar electrolytic capacitor
(1) Input signal: Color bar signalTAN: Tantalum capacitor
(2) Setting positions of each knob/button and variable resistor(3)Coils
: Original setting position whenNo unitm: [H]
shippedOthers: As specified
(3) Internal resistance of testerW/V: DC 20k(4)Power Supply
(4) Oscilloscope sweeping time Ţ : H 20mS/div: B1
: V Ţ 5mS/div: 12V
: Others Ţ Sweeping time is: 9V
specified.: 5V
(5) Voltage values: All DC voltage values* Respective voltage values are indicated.
* Since the voltage values of signal circuit vary to some extent(5)Test point
according to adjustments, use them as reference values.: Test point
: Only test point display
3. INDICATION OF PARTS SYMBOL [EXAMPLE]
l In the PW board: R1209 Ţ R209(6)Connecting method
: Connector
4. INDICATIONS ON THE CIRCUIT DIAGRAM: Wrapping or soldering
(1) Resistors: Receptacle
l Resistance value
No unitW: []
(7)Ground symbol
K: [WK] #: LIVE side ground
M: [MW] ": ISOLATED (NEUTRAL) side ground
l Rated allowable power: EARTH ground
No indication: 1/4 [W]: DIGITAL ground
Others: As specified
l Type5. NOTE FOR REPAIRING SERVICE
No indication: Carbon resistorThis modelOs power circuit is partly different in the GND. The differ-
OMR: Oxide metal film resistorence of the GND is shown by the LIVE : (#) side GND and the
MFR: Metal film resistorISOLATED (NEUTRAL) : (") side GND. Therefore, care must be
MPR: Metal plate resistortaken for the following points.
UNFR: Non-flammable resistor(1)Do not touch the LIVE side GND or the LIVE side GND and the
FR: Fusible resistorISOLATED (NEUTRAL) side GND simultaneously. If the above
* Composition resistor 1/2 [W] is specified as 1/2S or Comp.caution is not respected, an electric shock may be caused.
(2) CapacitorsTherefore, make sure that the power cord is surely removed from
l Capacitance valuethe receptacle when, for example, the chassis is pulled out.
1 or higher: [pF](2)Do not short between the LIVE side GND and ISOLATED (NEU-
less than 1mF]: [TRAL) side GND or never measure with a measuring apparatus
l Withstand voltage(oscilloscope, etc.) the LIVE side GND andISOLATED (NEU-
No indication: DC50 [V]TRAL) side GND at the same time. If the above precaution is
AC indicated: AC withstand voltage [V]not respected , a fuse or any parts will be broken.
Others: DC withstand voltage [V]
* Electrolytic Capacitorsl Since the circuit diagram is a standard one, the circuit and
47/50 [Example]: Capacitance value [mF]/withstand voltage [V]circuit constants may be subject to change for improvement
without any notice.
No. 560842-3 |
ACEC
JVC
