Block Diagrams (2); Circuit Board Location; Schematic Diagrams And Printed Wiring Boards - Sony KLV-27HR3 Service Manual

4-1. BLOCK DIAGRAMS (2)

CN3621
15 SC2-IN-L-H3
17 SC2-IN-R-H3
13 SC2-OUT-R-H3 BUFFER
Q2600
11 SC2-OUT-L-H3 BUFFER
Q2601
4 SW MONITOR
TO H3 BOARD
21 Y/C SWITCH
CN3703
23 VIDEO SWITCH
24 MODE 2
8 Y INPUT LUMINANCE
6 C INPUT CHROMINANCE
25 AV LINK
2 RF SW
CN3602
RIGHT OUT SC1-OUT-R
RIGHT IN SC1-IN-R
LEFT OUT SC1-OUT-L
LEFT IN SC1-IN-L
SCART
VIDEO OUT BUFFER AMPLIFIER
Q3600 Q1300, Q1301
BLUE IN B SCART 1
MODE MODE 1
GREEN IN G SCART 1
RED IN R SCART 1
BLANKING FB SCART 1
VIDEO IN CVBS AV1
TU1100
VIDEO PORT EXPANDER
AGC DEFEAT
AGC 19
Q1100
SCL
2
SDA
4
FM/AM 16
QSS 17
CN6201
1 PANEL DET SWITCH
Q0002
TO G2 BOARD
2 BACKLIGHT
CN6005
3 DIMMER
CN6204
11 POWER AV
TO G2 BOARD
CN6001
SWITCH &
BUFFER
Q6200, Q6203
+14.3V
FRONT-IN-R
54
FRONT-IN-L
53
SC1-IN-R
51
SC1-IN-L
50
SC2-IN-R
48
SC2-IN-L
47
SC2-OUT-L
34
SC2-OUT-R
33
SC1-OUT-L
37
SC1-OUT-R
36
FM/AM
60
BUFFER AMP QSS
CN2211 67
Q2100, Q2101
1 FRONT-IN-L
IC2300
3 FRONT-IN-R
HEADPHONE AMP
5 HP-L-OUT
TO H2 BOARD
3 R.IN 7 24
CN9200
7 HP-R-OUT
1 L.IN 6 25
9 HP PLUGGED
77
BUFFER
Q2301
A (
TUNER, AUDIO,
CHROMA DECODER,
SCART 1
AMPLIFIER FILTER BUFFER
Q3806 FL3800 Q3802
IC3801
SUB VIDEO PROCESSOR
R SCART 1
R1-IN 27
G SCART 1
G1-IN 26
B SCART 1
B1-IN 25
FB SCART 1
Y FRONT YS3 15
44 CVBS2/Y2-IN
CVBS AV1
CVBS3/Y2-IN 41
C FRONT
43 C2-IN
Y OUT
AMPLIFIER
21
Q3808 IC3811
CVBS OUT
3
SYNC ADDER
CVBS RF H5
1 CVBS/Y1-IN 9 2 4
CB-OUT AMPLIFIER
22
Q3809
CR-OUT AMPLIFIER
23
Q3807
SCL
13
SDA
14
IC0002
DIMMER LPF
1
BUFFER
Q0047
FB-SCART 1
BUFFER
Q0001
IC1200
TV ID
BUFFER AMPLIFIER
6 4
Q1200 Q1201
COINCIDENCE
CIRCUIT
IC0030
P6
P0
10
SCL LED 2 BUFFER
P2
12
SDA LINE MUTE
P3 14
P4 RESET AUDIO
P1 11
P5
IC6202 IC0001
REGULATOR PORT EXPANDER
SCL
SCL P0
2 2 10
3 +8V SDA Y/C SWITCH
4 SDA P1 11
1 VIDEO SWITCH
14 P3 P2 12
16 P4
IC2000
SOUND PROCESSOR
POWER ON AMPLIFIER
IN-2-R 21
RESET Q2000
IN-2-L
SDA 3
IN-3-R
SCL 2
IN-3-L X2000
XTAL IN 71
IN-4-R
XTAL OUT 72 IC2500
IN-4-L
AUDIO POWER AMP
OUT-2-L
BUFFER
SPEAKER OUT R 27 2 IN2+ OUT 2 12
Q2001
OUT-2-R
OUT 1 7
OUT-1-L
BUFFER
SPEAKER OUT L 28 4 IN1+
Q2002
OUT-1-R
8 MUTE TC
MONO IN(AM)
11 MUTE
IF IN 1
IC2400
AUDIO LINE BUFFER
L
3 7
HP-R
R
5 1
HP-L
SWITCH
DIGITAL CONTROL OUT 1
Q2200
Q2203 MUTE CIRCUIT
Q2202
Q2400, Q2401
Q2204
Q2405, Q2406
BUFFER
Q2300 AMPLIFIER
Q2404

4-2. CIRCUIT BOARD LOCATION

5-2. CIRCUIT BOARD LOCATION
)
CN0042
SCL 2
B
SDA 3
VM
SERVICE
CS 4
CVM Board
A
H
CN0043
A
CS 5
CVBS MONITOR 24
MODE 1 8
Y SYNC 29
H5
CB 20
D1
CR 21
SCL-5 12
SDA-5 14
TO B BOARD
CN3000 4-3. SCHEMATIC DIAGRAMS AND
MODE 2 9
5-3. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
LUMINANCE 28
PRINTED WIRING BOARDS
CHROMINANCE 25
Note :
AV LINK 1
• All capacitors are in µF unless otherwise noted.
• pF : µµF 50WV or less are not indicated except for
DIMMER 10
3
electrolytic types.
• Indication of resistance, which does not have one for
LED 1 11
rating electrical power, is as follows.
POWER AV 4
SIRCS 3
Pitch : 5mm
Electrical power rating : 1/4W
• Chip resistors are 1/10W
• All resistors are in ohms.
CN0041
k = 1000 ohms, M = 1000,000 ohms
SIRCS 2
LED 1 5
•
TO H5 BOARD
LED 2 6 CN9050
Q0046
•
+5V STBY 1
•
•
• All variable and adjustable resistors have
characteristic curve B, unless otherwise noted.
• All voltages are in Volts.
• Readings are taken with a 10Mohm digital mutimeter.
• Readings are taken with a color bar input signal.
• Voltage variations may be noted due to normal production
tolerences.
•
•
•
•
•
CN2500
SP R OUT 1
SPEAKERS
SP L OUT 3
J2400
L
SPEAKERS
R
- 26 -
Reference Information
RESISTOR
H1
C
G2
C
N
H2
J
S1 Board
A2
COIL
H3
CAPACITOR
A1
D2
A
D
A Board
Note :
Note :
: nonflammable resistor.
: fusible resistor.
: internal component.
: panel designation or adjustment for repair.
: B + bus.
: B - bus.
: RF signal path.
: earth - ground.
: earth - chassis.
RN : METAL FILM
RC : SOLID
FPRD : NON FLAMMABLE CARBON
FUSE
: NON FLAMMABLE FUSIBLE
RS : NON FLAMMABLE METAL OXIDE
RB : NON FLAMMABLE CEMENT
RW : NON FLAMMABLE WIREWOUND
: ADJUSTMENT RESISTOR
LF-8L : MICRO INDUCTOR
TA : TANTALUM
PS : STYROL
PP : POLYPROPYLENE
PT : MYLAR
MPS : METALIZED POLYESTER
MPP : METALIZED POLYPROPYLENE
ALB : BIPOLAR
ALT : HIGH TEMPERATURE
ALR : HIGH RIPPLE
The components identified by shading
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
Les composants identifiés par une trame et
par une marque sont d'une importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.