Sony KV-27V40 service manual Circuit Boards Location

6-2. Circuit Boards Location

	HZ
	(KV-29VL65A)
P	CV
(27V65/29VL65A/29VL65C/
29VL95/27V45/29VL85)
	E	HV
	K
	(27V65/29VL65A/
	29VL65C/29VL95)

6-3. Printed Wiring Boards and Schematic Diagrams

Note:

•All capacitors are in μF unless otherwise noted. pF: μμF 50V or less are not indicated except for electrolytic and tantalums.

•All electrolytics are 50V unless otherwise specified

•Indication of resistance, which does not have one for rating electrical power, is as follows:

Pitch: 5mm

Rating electrical power 1/4W

•All resistors are in ohms.

KΩ=1000Ω, MΩ=1000KΩ

•f nonflammable resistor.

•Δ : internal component.

•p: panel designation and adjustment for repair.

•All variable and adjustable resistors have charac- teristic curve B, unless otherwise noted.

•The components identified by ] in this manual have been carefully factory-selected for each set in order to satisfy regulations regarding X-ray radiation. Should replacement be required, replace only with the value originally used.

•When replacing components identified by ] make the necessary adjustments indicated. If results do not meet the specified value, change the component identified by [ and repeat the adjustment until the specified value is achieved.

(Refer to R584 on page 27 and 28).

•When replacing parts in the table below be sure to perform the related adjustment.

Part replaced (])	Adjustment ([)
IC301,IC521,IC603, DY, D573, D574
C505, C507, C508, C509, C511,	HV HOLD-DOWN
C515, C520, C572, C573, C574,
	(R584)
C575, L591, L501, R582, R583,
R585, R586, R578, R579, T504 (FBT)
IC603, IC601, R699	B+ VOLTAGE
	CONFIRMATION

•All voltages are in V.

•Voltage is DC with respect to ground unless otherwise noted.

•Readings are taken with a 10MΩ digital multimeter.

•Readings are taken with a color-bar signal input.

•Voltage variations may be noted due to normal produc- tion tolerance.

•Circled numbers are waveform references.

•: B + Line

•- - - - - : B - Line

•m : signal path

Reference Information

RESISTOR	: RN	METAL FILM
	: RC	SOLID
	: FPRD	NON FLAMMABLE CARBON
	: FUSE	NON FLAMMABLE FUSIBLE
	: RW	NON FLAMMABLE WIREWOUND
	: RS	NON FLAMMABLE METAL OXIDE
	: RB	NON FLAMMABLE CEMENT
	:	ADJUSTMENT RESISTOR
COIL	: LF-8L	MICRO INDUCTOR
CAPACITOR : TA		TANTALUM
	: PS	STYROL
	: PP	POLYPROPYLENE
	: PT	MYLAR
	: MPS	METALIZED POLYESTER
	: MPP	METALIZED POLYPROPYLENE
	: ALB	BIPOLAR
	: ALT	HIGH TEMPERATURE
	: ALR	HIGH RIPPLE

Note: The symbol G display is on the component side.

The components identified by shading and mark Á are critical for safety. Replace only with part number specified.

The symbol G indicates fast operating fuse.

Replace only with fuse of same rating as marked.

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