Sharp XG-NV5XB, Руководство по обслуживанию

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53
XG-NV5XB
52
12 11 10 9 8 7 6 5 4 3 2 1
A
B
C
D
E
F
G
H
WAVEFORMS
e
Q6003 Emitter
(CHROMA signal)
H : 10
µ
sec/div
V : 0.2V/div
5
SC1301 7-pin
(BP SIG5)
H : 10
µ
sec/div
V : 2V/div
1
SC1101 7-pin
(RP SIG5)
H : 10
µ
sec/div
V : 2V/div
9
P801 4-pin
(B-Y)
H : 20
µ
sec/div
V : 1V/div
2
SC1101 8-pin
(RP SIG6)
H : 10
µ
sec/div
V : 2V/div
3
SC1201 7-pin
(GP SIG5)
H : 10
µ
sec/div
V : 2V/div
4
SC1201 8-pin
(GP SIG6)
H : 10
µ
sec/div
V : 2V/div
7
P801 1-pin
(R)
H : 10
µ
sec/div
V : 0.5V/div
8
P801 2-pin
(G)
H : 20
µ
sec/div
V : 0.5V/div
6
SC1301 8-pin
(BP SIG6)
H : 10
µ
sec/div
V : 2V/div
w
Q6008 Emitter
(Y-signal)
H : 10
µ
sec/div
V : 0.2V/div
q
Q422 Emitter
(4FSC)
H : 50
µ
sec/div
V : 0.5V/div
0
IC604 6-pin
(H-OUT)
H : 20
µ
sec/div
V : 1V/div
DESCRIPTION OF
SCHEMATIC DIAGRAM
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.
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-
TOR:
RESISTOR
1. The unit of resistance “
Ω
” is omitted.
(K=k
Ω
=1000
Ω
, M=M
Ω
).
2. All resistors are ± 5%, unless otherwise noted.
(J= ± 5%, F= ± 1%, D= ± 0.5%)
3. All resistors are 1/10W, unless otherwise noted.
4. All resistors are Carbon type, unless otherwise
noted.
C : Solid
W
: Cement
S
: Oxide Film
T
: Special
N
: Metal Coating
CAPACITOR
1. All capacitors are
µ
F, unless otherwise noted.
(P=pF=
µµ
F).
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
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.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE
REGARDED AS POTENTIAL SHOCK HAZARDS
WHEN THE CHASSIS IS OPERATING.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH “
å
” ( ) A R E
IMPORTANT FOR MAINTAINING THE SAFETY OF
THE SET. BE SURE TO REPLACE THESE PARTS
WITH SPECIFIED ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.