Section 2: Diagrams; Circuit Boards Location; Printed Wiring Boards And Schematic Diagrams Information - Sony KE-42XS910 Service Manual

2-1. CIRCUIT BOARDS LOCATION

H1 Board
HM Board
2-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS INFORMATION
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. kΩ=1000Ω, MΩ=1000kΩ
Indication of resistance, which does not have one for rating
electrical power, is as follows:
1 / W in resistance, 1 / W and
4 10
: 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 color-bar signal input.
Readings are taken with a 10MΩ digital multimeter.
KE-42XS910

SECTION 2: DIAGRAMS

Switching Regulator
K Board
H3 Board
Pitch : 5mm
Rating electrical power :
1 / W in chip resistance.
16
H4 Board
MS2A Board
A Board
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 impossibility.
: B+line.
: B-line. (Actual measured value may be different).
: signal path. (RF)
Circled numbers are waveform references.
1
/ W
4
Divided schematic diagram:
Some schematic diagrams are divided into several pieces.
Information to where the line is to be connected is printed at the end
of each line.
For example: [TO A1/3, A2/3_1] means theline is connected to Ref.
No. 1 of A (1 of 3) and A (2 of 3) schematic diagrams.
TO A1/3,A2/3_1
H2 Board
DM Block Assy
(Includes DE2 and
DICC2 Boards)
Ref. No.
Name of divided schematic diagram
KE-42XS910
14