Sony MZ-E800 service manual 37 38

•Waveforms
1IC501 1 (TE), IC601 oh (TE)
(PLAYBACK mode)
200 mV/DIV, 50 ns/DIV
5IC504 1, 2, IC551 3 (PWM1),
IC601 <zxv> (SPVS),
IC801 yj (SPDL PWM)
(PLAYBACK mode)
2 V/DIV, 10 µs/DIV
9IC801 rg (XTAL)
1 V/DIV, 20 ns/DIV
2IC501 8, 9, 0, qa (IY, IX, JX, JY)
(PLAYBACK mode)
100 mV/DIV, 1 µs/DIV
6 IC504 5, 6, IC505 1, 2, 5, 6,
IC551 1, 2, rk (V1, U1, W1),
IC601 <zxm>, <zx,>, <zx.> (SPDU, SPDV, SPDW),
IC801 wf, wg, wh (CLV U, CLV V, CLV W)
(PLAYBACK mode)
1 V/DIV, 10 ms/DIV
0IC904 5 (EXT)
1 V/DIV, 5 µs/DIV
3IC501 ed (RF OUT), IC601 uk (RFI)
(PLAYBACK mode)
400 mV/DIV, 5 µs/DIV
7IC551 ef, eg, eh (COW0, COV0, COU0),
IC601 <zc/>, <zcz>, <zcx (SPCU, SPCV, SPCW)
(PLAYBACK mode)
1 V/DIV, 10 ms/DIV
qaIC907 5 (EXT)
1 V/DIV, 5 µs/DIV
4IC501 rs (FE), IC601 ij (FE)
(PLAYBACK mode)
20 mV/DIV, 200 ns/DIV
8IC601 w; (OSCO)
1 V/DIV, 20 ns/DIV
Approx.
30 mVp-p
Approx.
150 mVp-p
Approx.
1.3 Vp-p
Approx.
20 mVp-p
2.3 Vp-p
11.2
µ s
2.3 Vp-p
11 ms
2.3 Vp-p
12 ms
2.5 Vp-p
44.3 ns
2.3 Vp-p
59.1 ns
2.7 Vp-p
10
µ s
2.3 Vp-p
10
µ s
– 37 – – 38 –
•IC Block Diagrams
IC301 TA2131FL (EL)
V REF
MT
SW
BST
SW BEEP
19
20
21
22
23
24
18 17 16 15 14 13
PW
SW 12
11
10
8
7
BST1
9
BST2
654321
BST
AGC
PW
B
PW
A
ADD
MT TC
VCC1
INB
INA
BEEP
OUTB
BEEP
OUTA
VCC2
OUTA
PWR
GND
OUTB
DET
A
GC IN
BST OUT
BST NF2
LPF2
BST NF1
LPF1
VREF
VREF IN GND BEEP IN BST SW MT SW PW SW
IC501 SN761056CDBT
1
TE
REXT
Wpp-LPF
VREF
C
D
D-C
Iy
Ix
Jx
Jy
A
A-C
B
ADIP
FE
ABCD
AVCC
OFC-1
OFC-2
PS
LP
EQ
AGND
RFOUT
CCSL2
VC
XRST
SCK
SBUS
VREF075
PEAK
BOTM
DGND
OFTRK
S-MON
TON-C
CIG
CDN
ADIP
DVDD
PD-I
PD-NI
PD-O
43
44
TWpp
PK/BTM
Aw
CSLO
VREF075
A-C
D-C
Malfa
Mij
AwBPF
Dw
DwBPF
42
38
37
36
35
34
31
30
29
28
27
26
25
24
23
39
41
40
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
A+B+C+D
I+J
NPP
TON
CSL
Aw+Dw
TON Peak
TON Botm
ADIP
TE
TEMP
33
32
S-MONITOR
TE
RF
FE
APC
ADIP
T-ON
SERIAL
I/F
PEAK/BOTM
ABCD
Tpp/Wpp