Schematic Diagrams - Mitsubishi S290U Service Manual

SCHEMATIC DIAGRAMS

NOTE
1. TP6A, etc. show Test Points.
2. Capacitors
Value Not indicated
Dielectric
Not indicated : 50V
Strength
Not indicated =
Tolerance
= ±
G 2 %
= ±
J 5 %
Parts
except
I
for
chips
Sort
II Chips
Characteristic
Not indicated : F or B (high dielectric percentage)
(only ceramic
CH,SH,etc : Temperature compensating types
capacitor)
3. Resistors
Not indicated =
Value
K = kΩ
Parts except for chips
Wattage
Chips
Not indicated =
Tolerance
= ±
D
Parts
except
I
for
Sort
chips
II Chips
4. This is basic schematic diagram.
Some sets may be subject to modification according to engineering imporovement.
Zener Diode
Varicap
Positive Thermistor
P
5. Correspondence of the units in the Schematic
Diagrams to the SI units.
Schematic Diagram
Kiro K
Hertz HZ
Pico P
SHADED COMPONENTS HAVE SPECIAL
CHARACTERISTICS IMPORTANT TO SAFETY.
B E F O R E R E P L AC I N G A N Y O F T H E S E
C O M P O N E N T S R E A D C A R E F U L LY T H E
PRODUCT SAFETY NOTICE IN THE SERVICE
MANUAL.
DON'T DEGRADE THE SAFETY OF THE
RECEIVERS THROUGH IMPROPER SERVICING.
pF, for numbers more than 1
µF, for numbers less than 1
± 10 %
No Tolerance is indicated
for electrolytic capacitors
and ± 20 %
= ± = ±
K 10 % N 30 %
= ±
M 20 %
Not indicated : Ceramic capacitor
MF : Polyester capacitor
PP : Polypropylene film capacitor
ALM : Aluminus electrolytic capacitor
TF : Twin film capacitor
SC : Semiconductor ceramic capacitor
MP : Metalized paper capacitor
Not indicated : Ceramic capacitor chip
: Electrolytic capacitor chip
BP or NP : Non polarized electrolytic capacitor chip
Ω
(1000Ω) M = MΩ (1000kΩ)
Not indicated = 1/4W or 1/6W
Not indicated = 1/10W
±
5 %
= ±
0.5 % F 1 %
Not indicated : Carbon resistor
S : Fixed composition resistor
MB : Metal oxide film resistor (type B)
CE : Cemented resistor
Not indicated : Chip resistor
Thermistor
T
Photo Diode
LED
SI
k
Hz
p
P = + 100 % Q = + 30 %
– 0 % – 10 %
MF,PP
TAN or TANT
BP or NP
= ± = ± 10 %
J 5 % K
SPECIFIC SYMBOL
Fusible Resistor
Crystal unit
Air Gap
SERVICING PRECAUTION
SYMBOLS INDICATE COMPONENTS HAVING SPECIAL
CHARACTERISTICS IMPORTANT TO SAFETY AND
PERFORMANCE. THEREFORE REPLACEMENT OF ANY
SAFETY PARTS SHOULD BE IDENTICAL IN VALUE AND
CHARACTERISTICS. FOR ACCURACY OF THE
REPLACEMENT REFER TO THE PARTS LIST OF
SERVICE MANUAL.
DON'T DEGRADE THE SAFETY OF THE RECEIVERS
THROUGH IMPROPER SERVICING.
S290U
= ±
Z = + 80 % C 0.25 pF
= ±
– 20 % D 0.5 pF
MPP : Metalized plastic film capacitor
MMF : Metalized polyester capacitor
: Polyester polypropylene film capacitor
PS : Styrol capacitor
: Tantalum capacitor
: Electrolytic capacitor
: Non polarized electrolytic capacitor
: Wire wound resistor
W
M
: Metal film resistor
MPC : Metal plate cement resistor
ML : Metal liner resistor
Part (resistor) attached on the
copper-foil side of PCB
Ceramic filter
= ±
F 1 pF
= ±
G 2 pF
17