Read Sony KV-HG21M80 Service Manual online
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KV-HG21M80/M88
RM-GA002
5-2.
CIRCUIT BOARDS LOCATION
5-3.
SCHEMATIC DIAGRAM INFORMATION
Note:
•
•
All capacitors are in µF unless otherwise noted.
•
All electrolytic capacitors are rated at 50V unless otherwise
noted.
noted.
•
All resistors are in ohms.
kΩ = 1000Ω, MΩ = 1000kΩ
kΩ = 1000Ω, MΩ = 1000kΩ
•
Indication of resistance which does not have rating
electrical power is as follows.
electrical power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
Rating electrical power 1/4W (CHIP: 1/10W)
•
: nonflammable resistor.
•
: fusible resistor
•
¢
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have characteristic
curve B unless otherwise noted.
curve B unless otherwise noted.
•
Readings are taken with a color-bar signal input.
no mark
no mark
: Common
( )
: PAL
[ ]
: NTSC 3.58
•
Readings are taken with a 10 MΩ digital multimeter.
•
Voltage are dc with respect to ground unless otherwise
noted.
noted.
•
Voltage variations may be noted due to normal
production tolerances.
production tolerances.
•
All voltage are in Volt.
•
✽
: Cannot be measured.
•
Circled numbers are waveform references.
•
: B +bus.
•
: B –bus.
•
k
: signal path.
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.
Reference information
RESISTOR
RESISTOR
: RN
METAL FILM
: RC
SOLID
: FPRD
NONFLAMMABLE CARBON
: FUSE
NONFLAMMABLE FUSIBLE
: RS
NONFLAMMABLE METAL
OXIDE
OXIDE
: RB
NONFLAMMABLE CEMENT
: RW
NONFLAMMABLE
WIREWOUND
WIREWOUND
:
✽
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 component identified by shading and
mark
mark
! are critical for safety. Replace only
with part number specified.
Note: “A” board schematic diagram is divided into 7 blocks.
Each block is named by its function and block
“number”. eg: Processor (Block 001)
Joint connection between boards can be identified
using the block number followed by the grid's guide.
eg: -<PWR-OFF MUTE
002 : 4E
Meaning: Block 001 joint "PWR-OFF MUTE" is
connected to Block 002 joint "PWR-OFF MUTE"
located at grid 4E
“number”. eg: Processor (Block 001)
Joint connection between boards can be identified
using the block number followed by the grid's guide.
eg: -<PWR-OFF MUTE
002 : 4E
Meaning: Block 001 joint "PWR-OFF MUTE" is
connected to Block 002 joint "PWR-OFF MUTE"
located at grid 4E
C Board
A Board
H3 Board
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