Section 5: Diagrams; Circuit Boards Location; Printing Wiring Boards And Schematic Diagram Information - Sony KP-53V100 Service Manual

5-1. CIRCUIT BOARDS LOCATION

5-2. PRINTING WIRING BOARDS AND SCHEMATIC DIAGRAM 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 specified.
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 :
/ W in resistance, / W and
1 1 1
4 10
: nonflammable resistor.
: fusible resistor.
: internal component.
: panel designation and adjustment for repair.
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.
: B+ line
: B-line. (Actual measured value may be different).
: signal path. (RF)
Circled numbers are waveform references.

SECTION 5: DIAGRAMS

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The components identified by X in this basic schematic diagram
have been carefully factory-selected for each set in order to satisfy
regulations regarding X-ray radiation. Should replacement be
necessary, replace only with the value originally used.
When replacing components identified by Y, make the necessary
adjustments as indicated. If the results do not meet the specified
value, change the component identified by X and repeat the
adjustment until the specified value is achieved.
(Refer to adjustments in Sections 3-1 and 3-2.)
When replacing the parts listed in the table below, it is important to
perform the related adjustments.
Part Replaced (Y)
A board, G board, C517, C521,
C522, IC654, L504, T502, T504, DY,
A board, G board, C516, C517,
C521, C522, C536, D506, D507,
D522, IC206, IC502, IC654, L504,
R511, R522, R536, R538, R545,
R548, R584, T502, T504, DY
— 31 —
KP-53V100
Adjustment (X)
HV Regulator
(C517)
HV HOLD-DOWN
(R536, R545)