JVC TM-1500PS

a
O°
® TM-1500PS
JVC
tv-1500PS
SCHEMATIC
DIAGRAM
NOTICE
The voltage reading and waveform are measured at each
point with a multi-meter and an oscilloscope while input
a video signal (color bar) through the video input term-
inal (INPUT A) on the monitor,
The measurements were made with each VR under the
condition just after the shipment. The figures of the signal
Circuits may be more or less different after adjustments, so
use the figures simply for reference.
Multimeter used.
DC 20kQ/V
Given figures are all DC voltages.
Sweep speed of oscilloscope
H--20uS/div. V-~-5mS/div.
Others —sweep speed specified
Since the schematic diagram is a standard one, the cir-
cuit and circuit constants may be subject to change for
improvement without any notice.
SAFETY
FR (~\\\"} denotes a fusible resistor which operates as
a fuse. When replacing fusible resistors and parts indicat-
ed with black shading (°° °°) in the circuit diagrams,
be sure to ensure safety by using designated parts.
As to other parts too, use designated parts to maintain
safety and performance.
INDICATION OF PARTS SYMBOL
Inside board (Example) FX—1025A : R1209-— R209
Outside board (Example) RO001--R01
SCHEMATIC DIAGRAM INDICATION
Resistor
o
ie)
Resistance value
Without unit :({Q] K:(kQ] M: [MQ]
Rated allowable power
Without indication : 1/6W
Others Indicated
Type
Without indication : Carbon resistor
OMR : Oxide metal film resistor
UNFR : Unflarmmable resistor
MFR : Metal film resistor
MPR : Metal plate resistor
FR : Fusible resistor
Composition resistor 1/2 [W] is indicated as 1/2S or
Comp.
JVG victor COMPANY OF JAPAN, Ltd. 891212 ©
Capacitor
© Capacitance
Above 1 : [pF] Below 1 : [nF]
© Withstnad voltage
Without indication : DC 50 [VJ
Others : DC withstand voltage [V]
AC indicated : AC withstand voltage [V]
© Indications for electrolitic capacitors are as follows.
(Example)
47/50 capacitance [nF] /withstand voltage [V]
Cc Type
Without indication : Ceramic capacitor
MY : Mylar capacitor
MM : Metalized mylar capacitor
PP : Potypropylene capacitor
’ MPP : Metalized polypropylene capacitor
MF. : Metalized film capacitor
TF : Thin film capacitor
BP : Bipolar electrolytic capacitor
TAN. : Tantalum capacitor
Coil
Without unit > [pH]
Power Supply
ewe © B} (110V) mmm. © B2(12\V)
* Each voltage reading specified
Connection method
(-_] : Connector
> Pas : Receptacle
© ©: Wrapping or soldering
Test point & GND. symbol.
® : Test point by miniature GT pin
Q : Only test point display
=. : Live (Primary) side ground
sr : Neutral (Secondary) side ground
NOTE FOR SERVICE
This mode!l’s power circuit is partly different in the
GND. The difference of the GND is shown by the
LIVE (primary: .. ) side GND and the NEUTRAL
(secondary: fp ) side GND.
Don’t short between the LIVE side GND and NEU-
TRAL side GND or never measure with a measuring
apparatus (oscilloscope etc.) the LIVE side GND and
NEUTRAL side GND at the same time.
If above note will not be kept, a fuse or any parts will
be broken.