Sony Hi-Scan KP-51WS520, Service Manual

Page: 62 / 157

KP-46WT520/51WS520/57WS520
KP-46WT520/51WS520/57WS520 62
All capacitors are in µF unless otherwise noted. pF : µµF 50WV or less
are not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise specifi ed.
All resistors are in ohms. K=1000, M=1000k
Indication of resistance, which does not have one for rating electrical
power, is as follows:
Pitch : 5mm
Rating electrical power : 1 /
4
W
1 /
4
W in resistance, 1 /
10
W and 1 /
8
W in chip resistance.
: nonfl ammable resistor.
: fusible resistor.
: internal component.
: panel designation and adjustment for repair.
: earth ground
: earth-chassis
All variable and adjustable resistors have characteristic curve B, unless
otherwise noted.
Readings are taken with a NTSC color-bar signal input.
Readings are taken with a 10M digital multimeter.
Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production tolerances.
All voltages are in V.
S : Measurement impossibillity.
5-1. CIRCUIT BOARDS LOCATION
SECTION 5: DIAGRAMS
5-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS INFORMATION
SR
HA1
CG
CR
CB
VM
G
P
HB1 (KP-51WS520/57WS520 Only)
HB2 (KP-46WT520 Only)
D
A
BM
or
BH
: B+ line
: B-line. (Actual measured value may be different).
: signal path. (RF)
The components identifi ed by shading and
!
symbol are critical for safety. Replace
only with part number specifi ed.
The symbol indicates a fast operating fuse and is displayed on the component
side of the board. Replace only with fuse of the same rating as marked.
Les composants identifi es per un trame et une marque
!
sont critiques pour la
securite. Ne les remplacer que par une piece portant le numero specifi e.
Le symbole indique une fusible a action rapide. Doit etre remplace par une
fusible de meme yaleur, comme maque.