Toshiba W-707 Service Manual page 111

1
8-2. Cricuit Diagram
A
B
C
D
E
F
G
2
JP201
JP203
301 ON–OFF 5V
C843
Q843
2SC2236Y 22µ16V
R844
620
D843
MTZJ5.6C
C844
D844 22µ16V
JUMPER
C708
[0]
[4.9] [5]
(0)
[0.7]
1.8 (4.9) (5)
(0.7)
Q774 –23.7 –23.6 5
2SC2712Y
SWITCH R776
2.2k
[0]
(0)
[4.3]
–17.4
(4.3)
R777 4.8
[0.7]
0 2.2k
(0.7)
Q773
–23.5
Q775 RN2403
2SC2712Y
SWITCH
SWITCH
R703 24k
C776 R709
5.6k
B220p500V
C771
R771
TF0.047µ100V 36k
4 5 6
L771
125–8129–41
L772
3 2 1
330µ
[9]
C777 C772
R773 R770
(9)
B0.01µ 47µ16V
6.8k 100
8.3
[9]
Q771
2SC1959Y
(9)
AMP
C773 0.1
[8.7]
B0.01µ
C774 R772
(8.7)
B0.01µ 2.2
0.2
[8.7]
R778
(8.9)
[0](0)0.9 1.5k
9
Q772
C778 R779
2SC2458Y
0 KETSU KETSU
SWITCH
C775
33µ16V
W701
W701A CON FFC 7P
7
GND
6
AE HEAD
5
AUDIO REC
AUDIO PB 4
3
GND
2
CTL I / O
1
C.BIAS
P702
2
FE HEAD
GND 1
PV / PH
JP202
(12.5)
3 4
[3.25]
(3.27) R210
1k
[2.33]
3.27
(2.33)
Q211
2.33
2SC2712Y R238
BUFFER
KETSU
R212
(10) 100 R248
[1.67]
R211 100R
(1.67)
1.5k
1.67
(12.5)
C210
R213
27p
1k
R241
R216
L209 2K2
KETSU
22µ
PB–FM in
PB–C in
50
R237
49
C264 C263
1k
220p F0.01
C265
64 63 62 61
240p
R262
65
0R
C
TRAP
66
C268
B0.1µ
67
R
C707
C702
R264
S / N
F0.1µ
P
KETSU 10µ16V
JUDGE
68
PB–C
C712
R707 LPF
DOC
KETSU B3300p 2.7k
EP ON
DET
69
R708
C710
33k FM–AGC
560p
DET
70 GND3
R712
71
240
C714
10µ16V
SP ON
72
C713 R711 R710 R713
B0.01µ 330k 12k 6.8k
PB
73
AMP
C701 C715
Rec ON
B560p 1µ50V
P
74
PB
AMP
R702
MUTE
1k
75
C703
KETSU
fH
76 Trap 9dB
L701
8.2m
INV
77
C711
4.7µ35V
REC
MUTE
REC
78
AMP
R705 C716
ALC
330 B0.033µ
79
EP ON
R706
R
680
AUDIO
80
C706 BIAS
C709
B5600p Mute A1 A2
22µ16V
1 2 3 4
IC201
TA1251CF
MAIN LUMINANCE /
CHROMINANCE C717
27K 1µ50V
SIGNAL PROCESSOR
C720
KETSU
R720
SERVO MODE
R719 KETSU
10K
R721
LOCATION PIN EE PLAY REC
KETSU
E 0 0 0
0 3.8 3.8
Q254 C
B 4.6 0 0
C204
F0.01µ
JP717
(5)
JP274
(7.5)
ON / OFF5V
ICL01
TC90A25F–410
Csync IN
CL12
HD
1 16
F0.01µ
KETSU
VIDEO IN
2 15
D GND
A.Vcc
3 CL13
BLANK 14
5
JP212
(20)
Q219
KETSU
C246
KETSU
L207 68µ
47
L206 47µ C276
15p
C
C244
R227 2µ
30p R228
510
680R
R230
R266
0R C245
KETSU C243
200p
C249 680p
C261
56p R225
48 KETSU
1K2
L208 57
C241
68µ
R229 R224 C239
B0.1µ
5K1 KETSU
510
C242
C247
9p
B0.1µ
60 59 58 57 56 55 54 53 52 51 5
GND2
P R
M.H
W / C
PB L
D / C
AMP AGC
DET
AGC
MAIN AMP
EMPH
PV / P
P R MUTE
Rec FM
FM–MOD CLAMP
FB
EQ R P
CLAMP
P R
P R
MAIN
LPF
FM
AGC
PB–FM FM SUB
D.LIM
DeMOD
EQ LPF
Rec C
LPF
PULSE VIDEO
MAIN
GENERATOR Reg BIAS
CONV
P
ACK
APC AFC
Corrier
ID ID BPF
1 / N 1 / 8
B–ID
SUB
R P PS
AFC LOGIC
CONV
DET
B–ID
SW
R DET
P
VCO
R
APC
DET
P
P
Mute
BIAS HD
PLL
VCC1
5 6 7 8 9 10 11 12 13 14 1
C402
R262 C401
10µ
1000p
KETSU
JP248
R263
C415
B0.1µ 39
0R
JP252
(15)
R402
27k
C405
R297
F0.1µ
Q254
4.7k
RN1404
SWITCH
R296 C279
10k KETSU
C406
47µ6.3V
R251
0R
L401
3
KETSU
HD IN
JP246
(7.5)
ON / OFF5V
SERVO
LOCATION PIN EE