Description Of Schematic Diagram; Waveforms; Schematic Diagram - Sharp XG-NV5XB Service Manual

DESCRIPTION OF

SCHEMATIC DIAGRAM

H
VOLTAGE MEASUREMENT CONDITION:
1. Voltages at test points are measured at the
supply voltage of AC 120V. Signals are fed by a
color bar signal generator for servicing purpose and
the above voltages are measured with a 20k ohm/
V tester.
G WAVEFORM MEASUREMENT CONDI-
TION:
1. Waveforms at test points are observed at the supply
voltage of AC 120V. Signals are fed by a color bar
signal generator for servicing purpose.
INDICATION OF RESISTOR & CAPACI-
F
TOR:
RESISTOR
1. The unit of resistance "Ω" is omitted.
(K=kΩ=1000 Ω, M=MΩ).
2. All resistors are ± 5%, unless otherwise noted.
(J= ± 5%, F= ± 1%, D= ± 0.5%)
3. All resistors are 1/10W, unless otherwise noted.
E
4. All resistors are Carbon type, unless otherwise
noted.
: Solid : Cement
C W
: Oxide Film : Special
S T
: Metal Coating
N
CAPACITOR
1. All capacitors are µF, unless otherwise noted.
D (P=pF=µµF).
2. All capacitors are 50V, unless otherwise noted.
3. All capacitors are Ceramic type, unless otherwise
noted.
(ML): Mylar (TA): Tantalum
(PF): Polypro Film (ST): Styrol
C
CAUTION:
This circuit diagram is original one, therefore there may be a
slight difference from yours.
SAFETY NOTES:
1. DISCONNECT THE AC PLUG FROM THE AC
OUTLET BEFORE REPLACEING PARTS.
B
2. SEMICONDUCTOR HEAT SINKS SHOULD BE
REGARDED AS POTENTIAL SHOCK HAZARDS
WHEN THE CHASSIS IS OPERATING.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH " å " (
IMPORTANT FOR MAINTAINING THE SAFETY OF
A
THE SET. BE SURE TO REPLACE THESE PARTS
WITH SPECIFIED ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.
1 2 3
52
) A R E
4 5 6
1 2
SC1101 7-pin
SC1101 8-pin
(RP SIG5) (RP SIG6)
H : 10µsec/div
H : 10µsec/div
V : 2V/div
V : 2V/div
5 6
SC1301 7-pin
SC1301 8-pin
(BP SIG5) (BP SIG6)
H : 10µsec/div H : 10µsec/div
V : 2V/div
V : 2V/div
9
0
P801 4-pin IC604 6-pin
(B-Y) (H-OUT)
H : 20µsec/div
H : 20µsec/div
V : 1V/div V : 1V/div
e
Q6003 Emitter
(CHROMA signal)
H : 10µsec/div
V : 0.2V/div
7 8 9

WAVEFORMS

3 4
SC1201 8-pin
SC1201 7-pin
(GP SIG6)
(GP SIG5)
H : 10µsec/div H : 10µsec/div
V : 2V/div
V : 2V/div
7 8
P801 1-pin P801 2-pin
(R) (G)
H : 10µsec/div H : 20µsec/div
V : 0.5V/div V : 0.5V/div
q w
Q422 Emitter Q6008 Emitter
(4FSC) (Y-signal)
H : 50µsec/div H : 10µsec/div
V : 0.5V/div V : 0.2V/div
10 11 12
53
XG-NV5XB