Toshiba W808 Service Manual page 127

8-2-1. Waveform for Main Circuit Diagram
Power PIF
1 5 H001, Pin 1
T802, Pin 8
J-4
REC
V : 10V/div
H : 10µs/div
2 6
Q801, DRAIN H001, Pin 5
J-2
REC
V : 50V/div
H : 10µs/div
3 7
Q802, BASE H001, Pin 18
J-3
REC
V : 500mV/div
H : 10µs/div
4 8
Q801, GATE H001, Pin 1
J-2
REC
V : 2V/div
H : 10µs/div
9 H001, Pin 5
Fig. 8-2-2
10 H001, Pin 18
Selvo/Logic
11 17
C-17 ICD01, Pin 15 D-20
AUDIO IN SDA1
PLAY PLAY
V : 500mV/div V : 2V/div
H : 200µs/div H : 100ms/div
12 18
C-17 ICD01, Pin 16 D-20
VIDEO IN SCL1
PLAY PLAY
V : 500mV/div V : 2V/div
H : 20µs/div
H : 100ms/div
13 19
E-17 ICD01, Pin 27 D-19
TUNER
VIDEO OUT
AUDIO OUT
PLAY
PLAY
V : 500mV/div
V : 500mV/div
H : 10µs/div H :1ms/div
14 20
C-17 ICD01, Pin 15 D-20
SDA1
AUDIO IN
REC
REC
V : 500mV/div V : 2V/div
H : 500µs/div H : 100ms/div
C-17 15 ICD01, Pin 16 D-20 21
SCL1
VIDEO IN
REC
REC
V : 500mV/div V : 2V/div
H : 20µs/div H : 20ms/div
16 ICD01, Pin 27 22
E-17 D-19
TUNER
VIDEO OUT
AUDIO OUT
REC
REC
V : 500mV/div V : 500mV/div
H : 10µs/div H : 500µs/div
Fig. 8-2-3 23
24
25
26
IC501, Pin 50 IC506, Pin 4
J-12 I-7
CTL. AMP
SP CUE (x7)
C SYNC
(AC)
V : 1V/div V : 1V/div
H : 20µs/div H : 1ms/div
27
IC506, Pin 26 IC506, Pin 4
I-7 I-7
CTL. AMP
CFGA AMP
PLAY SP
PLAY (SP)
(AC)
V : 500mV/div V : 1V/div
H : 500µs/div H : 10ms/div
28
IC506, Pin 15 P502, Pin 9
H-7 H-8
CTL OUT CAP ERR
PLAY (SLP) SLP SLOW
V : 1V/div V : 1V/div
H : 10ms/div H : 10ms/div
29
IC501, Pin 32 P502, Pin 9
K-12 H-8
PV/PH CAP ERR
STILL SP SLOW
V : 1V/div V : 1V/div
H : 5ms/div H : 20ms/div
IC501, (a) Pin 34 30 IC506, Pin 24
K-12 H-7
(b) Pin 35
K-12
(a)
FGA SHAPE
PLAY (SLP) SP PLAY
(b)
V : 500mV/div
V : 2V/div
H : 500µs/div
H : 5µs/div
IC501, Pin 43 31 IC501, (a) Pin 70
J-12 I-10
(b) Pin 69
I-10
(a)
REC CTL OUT
SP PLAY
REC
(b)
V : 1V/div
V : 2V/div
H : 10ms/div
H : 100ms/div
IC501, Pin 78 32 IC501, (a) Pin 52
J-10 I-11
(b) Pin 53
I-11
(a)
(b)
V : 1V/div
V : 2V/div
H : 20µs/div
H : 200µs/div
IC501, Pin 74 33 IC503, Pin 7, 8, 9
I-10 H-13
V : 1V/div V : 5V/div
H : 0.5µs/div H : 2ms/div
34 IC503, (a) Pin 15
IC506, Pin 4 I-7 H-13
(b) Pin 16
H-13
(a)
CTL. AMP
SLP CUEx21
(AC)
(b)
V : 1V/div
V : 500mV/div
H : 500µs/div
H : 5ms/div
Fig. 8-2-4
Video/Audio
35 42
P202, Pin 5 IC920, Pin 14
B-9 H-15
PLAY LINE OUT
V : 20mV/div V : 500mV/div
H : 20µs/div H : 200µs/div
36 43
HU01, Pin 6 E-4 IC920, Pin 19
H-14
PLAY
V : 10mV/div
V : 500mV/div
H : 20µs/div H : 200µs/div
37
P201, Pin 6 44 IC920, Pin 31
B-8 I-15
PLAY
PLAY
V : 100mV/div
V : 200mV/div
H : 200µs/div
H : 20µs/div
IC920, Pin 19
38 HU01, Pin 12 45 H-14
E-4
MOD
PLAY
AUDIO
V : 200mV/div
V : 100mV/div
H : 500µs/div
H : 10µs/div
P204, Pin 2
39 B-9 46 IC920, Pin 22
I-14
PLAY REC
V : 10mV/div V : 200mV/div
H : 250ns/div H : 1µs/div
40 47
HU01, Pin 12 D-5 IC920, Pin 35
I-16
REC
REC
V : 200mV/div
V : 1V/div
H : 500µs/div
H : 20µs/div
41
HU01, Pin 12 D-5
REC
V : 500mV/div
H : 20µs/div
Fig. 8-2-5