Panasonic PT-43LCX64 Service Manual page 18

NETWORK SCHEMATIC DIAGRAM
(FOR L-CH SPEAKER)
J4551
WA5
TO L-CH SPEAKER
(TWEETER) P4551 C4551
R4551
2
SP_OUT_L_TW
PT
3R3/63V
AMP_GND 1
TO L-CH SPEAKER
(WOOFER) P4552
SP_OUT_L_WF 2
AMP_GND
1
NETWORK SCHEMATIC DIAGRAM
(FOR R-CH SPEAKER)
J4551
WA5
TO R-CH SPEAKER
(TWEETER) P4551
C4551
R4551
2
SP_OUT_R_TW
PT
3R3/63V
AMP_GND
1
TO R-CH SPEAKER
(WOOFER) P4552
SP_OUT_R_WF
2
AMP_GND 1
THERMISTOR 1 SCHEMATIC DIAGRAM
TO LCD DRIVE
C.B.A. P2303
P2811
1
R2811
THERMO_4
D4CA35030002
2
THERMO_3
LSJB3136
THERMISTOR 2 SCHEMATIC DIAGRAM
TO LCD DRIVE
C.B.A. P2304
P2821
1
R2821
THERMO_2
D4CE31330001
2
THERMO_1
LSJB3137
AUDIO SIGNAL
TO AUDIO AMP C.B.A.
P4553 P4503
2
SP_OUT_L P4503-3
1 AMP_GND P4503-4
LSJB3097
AUDIO SIGNAL
TO AUDIO AMP C.B.A.
P4553 P4503
2
SP_OUT_R P4503-1
AMP_GND P4503-2
1
LSJB3097
IMPORTANT SAFETY NOTICE:
COMPONENTS IDENTIFIED BY THE SIGN HAVE
SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY.
WHEN REPLACING ANY OF THESE COMPONENTS,
USE ONLY THE SPECIFIED PARTS.
NOTE: For placing a purchase order of the parts,
be sure to use the part number listed in the parts list.
Do not use the part number on this diagram.
OPERATION SCHEMATIC DIAGRAM
TO MAIN C.B.A.
P6305 P6701
GND 9
8
STBY5V
P_LED_G 7
6
P_LED_R
SCAN2 5
4
SCAN1
SCAN0 3
2
KEY_IN1
KEY_IN0 1
SW6701
EVQ11G05R
CH_UP
EVQ11G05R
CH_DOWN
COVER SWITCH SCHEMATIC DIAGRAM
J2911
PT
TO LCD DRIVE
P2912 C.B.A. P2502
1
COVER SW
2
GND
1 4
2
3
SW2911
K0L1BA000070
LSJB3098
LAMP COVER SW
NOTE:
FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.
NOTE:
PARTS MARKED "PT" ARE NOT USED.
Q6701 Q6702
2SB1218A0L 2SB1218AOL
(LED DRIVE) (LED DRIVE)
R G
1 3
2
D6701
B3AGA0000072
POWER LED
SW6703 SW6706
EVQ11G05R EVQ11G05R
VOL_UP INPUT
SW6702
SW6704 SW6705
EVQ11G05R EVQ11G05R
VOL_DOWN POWER
LSJB3149
NETWORK SCHEMATIC DIAGRAM
THERMISTOR 1 SCHEMATIC DIAGRAM
THERMISTOR 2 SCHEMATIC DIAGRAM
OPERATION SCHEMATIC DIAGRAM
COVER SWITCH SCHEMATIC DIAGRAM
PT-43LCX64/PT-50LCX64/PT-60LCX64