JVC-NV-PD4200维修手册.pdf

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NV-PD4200 NV-PD4200
[COMB PWB PATTERN] NV-PD4200 / NV-PD4200/A
STANDARD CIRCUIT DIAGRAM
n NOTE ON USING CIRCUIT DIAGRAMS
1. SAFETY
œType
ponents identified by the! symbol and shading are No indication :Ceramic capacitor
critical for safety. For continued safety replace safety critical MY :Mylar capacitor
components only with manufactures mended parts. MM :Metalized mylar capacitor
PP :Polypropylene capacitor
MPP :Metalized polypropylene capacitor
VOLTAGE AND WAVEFORM VALUES MF :Metalized film capacitor
The voltage and waveform values have been measured under the TF :Thin film capacitor
BP :Bipolar electrolytic capacitor
following conditions.
TAN :Tantalum capacitor
(1)Input signal :Colour bar signal (3)Coils
(2)Setting positions of No unit :[µH]
each knob/button and Others :As specified
(4)Power Supply
variable resistor :Original setting position
:B1
when shipped
:B2(12V)
(3)Internal resistance of tester :DC 20k¶/V :9V
(4)Oscilloscope sweeping time :H Ë 20µS/div :5V
:V Ë 5mS/div *Respective voltage values are indicated
:Others Ë Sweeping time is (5)Test point
specified
:Test point
(5)Voltage values :All DC voltage values
– Since the voltage values of signal circuit vary to some extent :Only test point display
according to adjustments, use them as reference values.
(6)Connecting method
OF PARTS SYMBOL [EXAMPLE] :Connector
œIn the PW board :R1209¨R209 :Wrapping or soldering
:Receptacle
[INTERFACE PWB PATTERN] ON THE CIRCUIT DIAGRAM
(1)Resistors
œResistance value (7)Ground symbol
No unit :[¶] # :LIVE side ground
K :[K¶] " :ISOLATED(NEUTRAL) side ground
M :[M¶] :EARTH ground
œRated allowable power :DIGITAL ground
No indication :1/10[W]
Others :As spec