Block Diagram - Toshiba 21N21N Service Manual

MICON W/T.TEXT
IC101 OECF006A
Q102
LED DRIVE
49 ON_TIMER
Q103
LED DRIVE 9
STANDBY LED
ON TIMER
D103
STAND BY/P.ON
D101
AVDD1
39
31 AVDD2
25 AVDD3
AT+5V
OS101 1
1 REMORT
OSC_OUT
50
X101
4MHz
51 OSC_IN
FORTHD VCR1
AUDIO SW
IC701 NJM2234L
Vin 2
Vin 1
V.OUT
SW 2
SW 1
SOUND AMPIC
IC1002
LA4600
E-1
VOL UP
VOL DOWN
CH UP
KEY_IN 56 CH DOWN
I2C
P.CON+5V
MEMORY
5
SDA 19 SDA
IC199
SCL 20 6 S-24C04BDP-LA
SCL
OSD-B
15
OSD-G 16
OSD-R
17
CVBS2 33
CVBS1 34
X602
AV1 42
3.579545MHz
X601
AV2 43
4.433619MHz
53
P.CON+5V
P.CON+8V
Q204
SIF BUFFER
3
1
7
4
2
R OUT
L OUT
R IN
L IN
FOR VCR
NC
7
SOUND+B
6
2
3
4
5
8 4 3
1
VCC
+
SPEAKER
SP353

BLOCK DIAGRAM

TU001
SCL SDA BPL AGC IF
4 5 7 1 11
IF/CHROMA
IC201 STV2246C
8 6 7
OSD-B
34
35 OSD-G
36 OSD-R
VERT 47
29 CVBSOUT1
SCL 51
39 XTAL2
52
SDA
40 XTAL1
H_OUT 48
B.OUT
30
VCC_IF
12
G.OUT 31
VCC_D
53
R.OUT 32
VCC1
45
17 VCC2
R_EXT/V_EXT 27
26
G_EXT/Y_EXT
B_EXT/U_EXT 25
FM_OUT
11
BLK_EXT 28
14 EXT_AUDIO_IN
INT_CVBS_OUT 13
55
AUDIO_OUT
CVBSIN2 20
J701
VIDEO OUT
1
19
VIDEO IN
3 20
21-Y IN
16
21-B IN
2 7
21-G IN
6
11
21-R IN
15
8
Q703
BUFFER
HEADPHONE JACK
J702
SW TRANS
T501
5
9 SOUND+B
+B
12
15 P.CON+8V
AT+5V
16
P.CON+5V
V-DRIVE
IC401 TDA8174A
Vs 10 P.CON+25V
1
POWER OUTPUT
3 TRIGGER INPUT
I2C
Q402 Q401
H.DRIVE H.OUTPUT
J801
Q805, Q806
F
BULE OUT
11
Q803, Q804
7
6
GREEN OUT
Q801, Q802
RED OUT 8
VIDEO_SW
IC702 NJM2234L
V.OUT
7
1 VIN1
3
VIN2
2 SW1
4 SW2
FRONT VIDEO
J703
3
1
2
FRONT AUDIO L
J704
3
1
2
Q501
POWER
D
SW TR
DY
FB401
1
2 +B
3 P.CON+25V
F
S
HV
CRT
V801
E-2