Toshiba VTW2186 Service Manual page 68

A B
8
7
6
5
4
3
2
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
G-23
C D
SECAM CHROMA/Hi-Fi SCHEMATIC DIAGRAM
(VCR PCB)
L5501
AT+11V
100uH 0305
HF1
HF_COM
HF2
L5502
6.3V
100uH 0305
HF H.SW HF_H.SW
TP5501
NC W879
SDA
W942
SCL
C5503
HF_ENV
VCR_A_MUTE
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
C D
E F
R5504 R5509
39K 39K
3.8
3.8 3.9 3.9 0.8 3.8 3.8 0 0.8 3.9 3.9
33 32 31 30 29 28 27 26 25 24 23
active s-by Vref Iref Supply
10.5
passive s-by
M
playback
A
amplification level
HID
detector decoder
0.6
BPF
PLL select
HF
1.3MHz
limiter 1.3MHz TUL +1db 12V
1.4MHz
HF AGC 1.4MHz
E1L
0.6
CCO
record current RM HF LPF
SAP
level
TUR
M + BPF detector
PLL
0.6 E1R M
1.7MHz
HF 1.7MHz
carrier ratio SAP
1.8MHz
record-mute limiter 1.8MHz
HID HF LPF CCO
C5501 R5503 park
DCL
L
0 hold
R
0.01 B 470 noise 5th order rectifier park
DCR
suppr. hold
audio LPF W+FM
0 detector AUNT output
select
audio
C5502 compressor 24pin E2L
clipper CCA
expandor 23pin L + +
5.2 R E2R
noise 5th order rectifier
suppr.
47 KA audio LPF W+FM +
detector Dub
N
R5511 line select
audio M
0.9 32pin
compressor CCA
clipper +
expandor
33pin
18K RM
auto
env.select(pb)
1.3 HID A
mute
DCL + +
2
I C Hifi detector
MUTE
DCR
vol. vol.
AUTN DOC +
right
L Dub left
1.4
INPUT
0.1 B SAP M
SELECT
REC
4.2
mute
TUL
TUR
E2L
E2R
E1R
1 2 3 4 5 6 7 8 9 10 11
R5502
3.8 3.8 3.8 3.8
NC 3.8 3.8 NC NC 3.8 3.8
10K
HI-FI/AUDIO/
C5504
CANAL SW IC
IC5501
10P CH HF ENV.
TDA9605H
TP5502
NC
E F
G
C5524
Y/C_AUDIO
3.8
1 B
C5529
NORMAL_A
4.6
1 B
6.0
MONITOR_A-R
6.0
MONITOR_A-L
NC
0 AT+11.5V
NC
VCR/DVD
6.0
NC
6.0
C5526
NC
0
1 B
C5525
NC
0
1 F
NC
AUDIO SW(L CH) IC AUDIO SW(R CH) IC
3.9
IC5502 IC5503
NC
MM1501XNRE MM1501XNRE
0
0 6.5 6.5
SW1 Ain1 Ain1 SW1
5.7 0 0
A.OUT GND GND A.OUT
11.1 6.5 6.5
Vcc Ain2 Ain2 Vcc
AUDIO SIGNAL(PB)
AUDIO SIGNAL(REC)
TUNER AUDIO SIGNAL
G
H
8
7
6
5
4
0
5.7
3
11.1
2
PCB010
VMC296
1
H
G-24