Toshiba 21N21N Service Manual page 24

A B
8
7
6
5
21PIN JACK
J701
0350_9982_05
4
GND
VIDEO IN
VIDEO OUT
GND
GND
21-Y IN
21-R IN
GND
GND
NC
21-G IN
NC
3
GND
FOR VCR
21-B IN
L IN
GND
GND
L OUT
R IN
R OUT
2
1
A B
C
21PIN SCHEMATIC DIAGRAM
L713
10uH 0305
L711
22uH
R711 C717
75 1/4W
10V 470 YK
5.2
C724
BUFFER R720
Q702
4.5
KTA1266 47 16V 10 KA
0
R736
10K
L706 R705
22uH 1K
W804
L704
L707 R750
22uH
22uH 100 1/4W
L708 R710
22uH 1K
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(MAIN PCB)
L717
VIDEO SW IC IC702 NJM2234L
10uH
Vin1 SW1 Vin2 SW2 Vin3 Vcc
1 2 3 4 5
4.9 0 4.9 0 4.9 8.0
C728
16V 10 KANP
26
27
AUDIO SW(MONO) IC IC701 NJM2234L
Vin1 SW1 Vin2 SW2 Vin3 Vcc
1 2 3 4 5
4.94 0 4.9 0 4.9 8.0
NC
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.
D E
F G
V.OUT GND
6 7 8
4.2 0
C743
16V 10 KA
V.OUT GND
6 7 8
4.2 0
C742
16V 10 KA
0
RGB SW
0
Q711
2SC2412K
0
F G
H
8
7
6
5
FROM SOUND AMP
FRONT_V_IN
FRONT_A_L
FROM/TO MICON/TUNER
AV2
AV1
FORTHD_VCR_1
TU/RGB
4
FROM/TO IF/CHROMA
SCART_V_IN1
TUNER_V_OUT
EXT_A_IN
21_Y
21_R 3
21_G
21_B
R703
MONO_A_OUT1
220 1/4W
2
FROM POWER
P.CON+8V
GND
PCB010
TMB545
1
H