Part 1 Chassis Description; Chassis Summary - Sanyo FC3G2 Training Manual

Part 1 Chassis Description

1. Chassis Summary

The following figure shows a basic block diagram of the FC3G2 chassis. This
chassis is constructed by the folowing ICs :
AN17820B, IC001, for the audio output circuit
LA76818A, IC201, for the IF, video, chroma de-modulation and deflection circuit
LA7642NM-TLM-E, IC281, for the SECAM decoder circuit.
NJW1142M, IC3701, for audio processor
LA78041, IC501, for the vertical deflection output circuit
LC863448W-52F1-TLM, IC801, for the CPU (system control unit) of FC3G2
AT24C16A-10PI-2.7, IC802, for the control memory IC.
MM1188XS & TC4053BF-TP1, IC1401 & IC 1501, for video selector.
A1901A
RC-IN
28
RC
RECEIVER
ON-TIMER
32
POWER
D1910
31
LED
FRONT
KEY-IN
SW1901 ~
12
CONTROL
SW1906
KEYS
S-VIDEO IN (FROM S-TERMINAL)
11
IC001
AUDIO AMP.
R-OUT 12 8 R
SP902
6
L-OUT L
2
SP901
VIDEO MONITOR OUT
REAR
V
MONITOR AUDIO MONITOR OUT(LEFT)
L
OUT
AUDIO MONITOR OUT(RIGHT)
TERMINAL
R
REAR
V
AV1
AV1 L-IN
L
INPUT
AV1 R-IN
TERMINAL
R
FRONT
V
AV2
AV2 L-IN
L
INPUT
AV2 R-IN
TERMINAL
R
IC1401
VIDEO
SELECTOR
9
1
S-TERMINAL
C-IN
6
+
4
Y-IN
7
8
3
AV2/S-INPUT
SDA
3
5
IC802
EEPROM
SCL
4 6
OSD R-OUT
19
OSD G-OUT
IC801
SDA/SCL
20
CPU
OSD B-OUT
21
SDA/SCL
1/2 IF/VIDEO/
CHROMA
11/12
TV/AV OUT
24
R-IN
14
AV1/AV2 OUT
26
G-IN
15
B-IN
16
VIDEO
IC3701 OUT (TV)
46
VIDEO-IN
10
5
42
Y-IN
R-OUT
26 21
TV
TV-AUDIO
1
AUDIO
(L-TV-L)1/30
OUT
2
29 44 INT.VIDEO IN
AUDIO
CONTROL/
SURROUND
3
VIDEO MONITOR OUT
28
13/14
VIDEO SELECTOR
AV IN 2
TV IN 1
TV IN 5
AV,Y IN
3
13
AV-IN
AV OUT
12
Y-IN
AV1/AV2
(FROM CPU PIN-25)
11 9
C-IN
Y-IN
S-INPUT
Figure of FC3G2 block diagram
X161
SAW
A101
FILTER
TUNER
IC201
IF IN
5/6
R-OUT
19
G-OUT
20
B-OUT
21
VERT.OUT
23
HORIZ.OUT
27
Q431
H-DRIVE
(C-IN)
IC1501
MONITOR
15
OUT
TV/AV OUT
4
Y-OUT
AV-OUT
14
Y-OUT
10
TV/AV (FROM CPU PIN-24)
3
Training Manual FC3G2 Chassis
CRT UNIT
IC701
TRIPLE VIDEO
OUTPUT AMP.
R R
1
9
G G
2
8
B B
3 7
L902
HEATER
IC501
1
5
VERT./DEF.
Q432
H-OUT
T431
H-DRIVE
TRANS.
FOCUS
T471
SCREEN
PCC
FBT
CIRCUIT
Q461-Q462
POWER SUPPLY CIRCUIT
FBT
140V
36V TUNER
HORIZ. DEF.
24V
VERT. DEF.
11V MAIN SOUND AMP.
9V
9V IC201, AUDIO CTL.
CPU, EEPROM
5V
CRT
HV
DY
HV