Circuit Board Location; Schematic Diagram; C Board - Sony KV-21FQ10K Service Manual

4-2. CIRCUIT BOARDS LOCATION

C Board

KV-21FQ Models

4-3. SCHEMATIC DIAGRAM

Note:
All capacitors are in µF unless otherwise noted.
•
• All electrolytic capacitors are rated at 50V unless otherwise noted.
• All resistors are in ohms.
kΩ = 1000Ω, MΩ = 1000kΩ
• Indication of resistance which does not have rating electrical
power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
• : nonflammable resistor.
¢
• : internal component.
• : panel designation or adjustment for rrepair.
• 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 10 MΩ digital multimeter.
• Voltage are dc with respect to ground unless otherwise
noted.
• Voltage variations may be noted due to normal production
tolerances.
• All voltage are in Volt.
✽
• : Cannot be measured.
• Circled numbers are waveform references.
• : B +bus.
• : B –bus.
• : signal path.
k
Note: The reference number which starts with Wxxx
(eg: W003) indicates a wire to wire connection.
Note: Components marked as XX are not fitted on this
model.
A Board
– 33 –
KV-21FQ10B/21FQ10E/21FQ10K/21CL10B
KV-21CL10E/21CL10K/21CL10U/21CL1K
C Board
KV-21CL Models
Reference information
RESISTOR : RN
: RC
: FPRD
: FUSE
: RS
: RB
: RW
: ✽
COIL : LF-8L
CAPACITOR : TA
: PS
: PP
: PT
: MPS
: MPP
: ALB
: ALT
: ALR
Note: The component identified by shading and mark
! are critical for safety. Replace only with part
number specified.
Note: "A" board schematic diagram is divided into 6 Block.
Each block is named by its function and block "alphabet".
eg: Processor (Block A)
Joint connection between boards can be identified using
the block alphabet followed by sequence numbering.
eg: -<HOUT-DEFL (A10) To D11
Meaning: Block A joint A10 is connected to Block D joint
D11
A Board
METAL FILM
SOLID
NONFLAMMABLE CARBON
NONFLAMMABLE FUSIBLE
NONFLAMMABLE METAL OXIDE
NONFLAMMABLE CEMENT
NONFLAMMABLE WIREWOUND
ADJUSTMENT RESISTOR
MICRO INDUCTOR
TANTALUM
STYROL
POLYPROPYLENE
MYLAR
METALIZED POLYESTER
METALIZED POLYPROPYLENE
BIPOLAR
HIGH TEMPERATURE
HIGH RIPPLE
RM-W100