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XR - J1500C
3. SCHEMATIC AND PCB CONNECTION DIAGRAMS
NOTE FOR SCHEMATIC DIAGRAMS
(Type
1A)
1. When ordering service
parts, be sure to refer to
"PARTS
LIST of EXPLODED
VIEWS"
or "PCB
PARTS LIST".
2. Since these are basic circuits, some parte of them or the
values
of some components may be changed for improve-
ment.
3. RESISTORS:
Unit: &:kQ, M:MQ, or 2 unless otherwise noted.
Rated power.
1/4W,
1/6W,
1/8W,
1/10W unless otherwise noted.
Tolerance:(F): = 1%, (G): = 2%, (IK): = 10%, (M): + 20% or +5%
unless otherwise noted.
4. CAPACITORS:
Unit : p:pF or ;:F unless otherwise noted.
Ratings : capacitor (1: F) / voltage (V) unless otherwise noted.
Rated voltage : 50V except for electrolytic capacttors.
5. COILS:
Unit : m:mH or 4H unless otherwise noted.
6. VOLTAGE
AND CURRENT:
(¥V) : Signal voltage at rated output.
T_jor «Vv
DC voltage (V) at no input signal unless otherwise noted.
Value in(
) is OC voltage at rated power.
mA
or «+-mA:
OC current at no Input signal unless otherwise noted.
7. OTHERS:
e2or@ _— : Adjusting point.
e@
<<
: Measurement point.
@The
A mark tound on some
component
parts Indicates the Im-
portance of the safety factor of the parts. Therefore,
when replacing, be
sure to use parts of identical designation.
8. SCH - (] OM THE SCHEMATIC DIAGRAM:
@ SCH- "indicates the drawing number of the schematic diagram.
(SCH stands for schematic diagram.)
9. SWITCHES (Underline indicates switch postition):
R/P SW PCB ASSY
$604; R/P SW
FRONT PCB ASSY
$901: POWER STANDBY/ON
$902: TUNER /BAND
$903: TAPE
$904; AUX
$905: SFC
$906: P. BASS (DEMO}
$907: TUNING + (>> + PP)
$908: TUNING - (|
- <4)
$909: PRESET UP
$910: PRESET DOWN
$911; MEMORY
$912: STOP
$913: CD p/||
$914: PROGRAM
$915: CLOCK/CLOCK ADJ
$916: TIMER SET
TIMER
$917: ON/OFF
CO CONTROL PCB ASSY
S11:
OPEN/CLOSE ( &)
$12:
VDISC SKIP
VOL. SEL. PCB ASSY (SDXJ and SXJ/NC only)
S501: AM CHANNEL STEP
9kHz — 10kHz
$502: VOLTAGE SELECTOR
AC110V — AC120- 127V — AC220-
230V — AC240V
NOTE FOR PCB DIAGRAMS:
1. Part numbers
In PCB
diagrams
match
those
In the schematic
diagrams.
2. A comparison
between
the malin parts of PCB
and
schematic
diagrams
Is shown
below.
Symbol in PCB
Symbol In Schematic
LOA
eo
2 2
Transistor
0504
Q504
Qs04
oO D203 ar}
o—}¢—0
Diode
oe
D203
c513
)
>
+
Capacitor
(Polarized)
3. The transistor terminal marked with E or C shows the emitter.
4. The diode terminal marked with © or C shows cathode side.
5. The capacitor terminal
marked
with © or
( shows
negative
terminal.
13
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