JVC LT-22HG45E Service Manual page 32

A B
8
7
6
FROM/TO MAIN UNIT
CP2204 (CN6)
A2001WR-S04-T
NC
B2201 FCM1608KF-102T02
CD805 1 AT+3.3V
B2202 FCM1608KF-102T02
CH243303
2 KEY_A
B2203 FCM1608KF-102T02
3 KEY_B
B2204 FCM1608KF-102T02
4 GND
NC
5
4
3
2
1
A B
C D
OPERATION SCHEMATIC DIAGRAM
(OPERATION PCB)
R2264 330 1/16W
R2265_1 10K 1/16W +-1%
C2201 6.3V 10 B
R2268 10K 1/16W
R2266_1 18K 1/16W +-1%
D2204 MA111
R2267 33K 1/16W
C2225 10V 0.1 B
0.01
C2202 25V B
C2203 25V 0.01 B R2269 8.2K 1/16W
R2271 3.9K 1/16W
R2272 560 1/16W
R2273_1 5.6K 1/16W +-1%
R2274_1 22K 1/16W +-1%
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C D
E
IC
C2226 25V 0.022
C2227 25V 0.022
C2228 25V 0.022
C2229 25V 0.022
C2230 25V 0.022
OUT4
OUT3
3.28 3.28 3.36 3.36 0 3.28 NC 0 3.28
1 2 3 4 5 6 7 8
PD3 PD4 PA2 VCC GND PA3 PB6 PB7
3.28
3.36 C2231 25V 0.022
PD2 PD5
3.28
0 NC
PD1 PD6
3.28 3.28 C2232 25V 0.022
PD0 PD7
KEY_SENSOR_IC
3.36
IC2204 3.28
PC6 PB0
ATTINY48-MU
NC 0 3.36
JG2225 PC5 PB1
NC 0 3.28
JG2226
PC4 PB2
OUT8 3.36 3.28
PC3 PB3
3.28
OUT7 0
PC2 PB4
NC
PC1 PC0 PA1 GND PC7 PA0 AVCC PB5
24 23 22 21 20 19 18 17
OUT6 3.36 3.36 3.36 0 0 3.36 3.36 3.28
NC
OUT5
OUT2
OUT1
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
E
F G
B
B
B
B
B
B R2278 1K 1/16W
JG2205 KEY6/MENU
B R2279 1K 1/16W
JG2207 KEY8/VOL+
R2280 1K 1/16W
JG2208 KEY1/CH+
R2281 1K 1/16W
JG2209 KEY2/INPUT
R2282 1K 1/16W
JG2210 KEY3/VOL-
R2283 1K 1/16W
JG2211 KEY4/POWER
R2284 1K 1/16W
JG2212 KEY5/CH-
JG2227 MOSI
JG2228 MISO
JG2229 SCK
JG2230 RST
JG2231 VCC
JG2232 GND
F G
H
8
7
6
5
4
3
2
PCB270
CEK600
1
H