Service manual

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5-2. CIRCUIT BOARD LOCATION
5-3. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
Note :
• All capacitors are in µF unless otherwise noted.
• pF : µµF 50WV or less are not indicated except for
electrolytic types.
• Indication of resistance, which does not have one for
rating electrical power, is as follows.
Pitch : 5mm
Electrical power rating : 1/4W
• Chip resistors are 1/10W
• All resistors are in ohms.
k = 1000 ohms, M = 1000,000 ohms
• : nonflammable resistor.
• : fusible resistor.
• : internal component.
• : panel designation or adjustment for repair.
• 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.
•: B + bus.
• : B - bus.
• : RF signal path.
• : earth - ground.
• : earth - chassis.
Reference Information
RESISTOR 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
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
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.
Note :
The components identified by shading
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
Note :
CVM Board
A Board
S1 Board
VM
C
H
D1
A
J
A2
N
D
A1
D2
C
A
5-1. BLOCK DIAGRAMS (8)
Q4301
TO
AG BOARD
CN2003
CN4302
3
1
B_PC
G_PC
5
R_PC
7
V_PC
9
H_PC
CN4305
L
R
CN4301
HP_R
HP_DET
HP_L
CN4303
Y/CVBS
L
C
R
CN4300
Q4302
Q4303
J4301
Q4300
IC4300
PC Input EDID NVM
5
7
6
8
J4302
PC IN
J4300
MINI JACK
AUTIO L & R
S-VIDEO
CVBS
B_PC
G_PC
R_PC
V_PC
H_PC
CN4304
TO
????
3
4
R
L
V
TO
JB BOARD
CN9513
2
8
6
4
5
4
3
4
2
H3 ( )
PC In, Mini Jack, S-Video, CVBS, Audio L & R
TO
???
LAMP COV
S4320
CN4306
3
T1 ( )
Lamp Door Switch
LAMP COV
S4340
CN4340
TO
???
3
T2 ( )
Lamp Position Switch
H3
N
P
AG
JB
C
T2
T1
H1
H2