Panasonic SA-HT885WEE Service Manual ▷ View online
19 Wave Form Chart
WF No. IC2006-2 (PLAY)
WF No. IC2006-4 (PLAY)
WF No. IC2006-6 (PLAY)
WF No. IC2006-8 (PLAY)
0.6Vp-p(20usec/div)
WF No. IC2006-9 (PLAY)
0.5Vp-p(20usec/div)
WF No. IC2006-14 (PLAY)
2.1Vp-p(20usec/div)
WF No. IC2018-13 (PLAY)
3.8Vp-p(100nsec/div)
WF No. IC2011-36 (PLAY)
40mVp-p(200usec/div)
WF No. IC2013-7 (PLAY)
80mVp-p(200usec/div)
WF No. IC2006-11 (PLAY)
1.1Vp-p(20usec/div)
1.1Vp-p(20usec/div)
0.5Vp-p(20usec/div)
WF No. IC2006-12 (PLAY)
1.0Vp-p(20usec/div)
WF No. IC2006-13 (PLAY)
2.1Vp-p(20usec/div)
WF No. IC2006-15 (PLAY)
2.1Vp-p(20usec/div)
WF No. IC2006-16 (PLAY)
1.2Vp-p(20usec/div)
1.0Vp-p(20usec/div)
49
SA-HT885WEE
· This schematic diagram may be modified at any time
with the development of new technology.
Notes:
S901:
Play detection switch.
S902:
Open detection switch.
S6000:
Tray open / close switch (
Open /
Close).
S6001:
F. skip, search and Tuning switch
(
(
/
/ TUNING
).
S6002:
R. skip, search and Tuning switch
(
(
/
/ TUNING
).
S6003:
Stop and Tune mode / FM mode
switch (
switch (
TUNE MODE / FM
MODE).
S6004:
Pause and FM mode switch (
FM
MODE ).
S6005:
Play and memory switch (
Memory).
Memory).
S6011:
Standby / on switch (
).
S6012:
Source select switch (INPUT
SELECTOR).
SELECTOR).
S6013:
Progressive switch.
S6014:
Harmonic out switch.
VR6000:
Volume control.
VR6001:
Main mic.
· Indicated voltage values are the standard values for the unit
measured by the DC electronic circuit tester (high-
impedance) with the chassis taken as standard. Therefore,
there may exist some errors in the voltage values,
depending on the internal impedance of the DC circuit
tester.
impedance) with the chassis taken as standard. Therefore,
there may exist some errors in the voltage values,
depending on the internal impedance of the DC circuit
tester.
· Important safety notice:
Components
identified
by
mark
have
special
characteristics important for safety.
Furthermore, special parts which have purposes of fire-
retardant (resistors), high-quality sound (capacitors), low-
noise (resistors), etc. are used.
When replacing any of components, be sure to use only
manufacturer´s specified parts shown in the parts list.
Furthermore, special parts which have purposes of fire-
retardant (resistors), high-quality sound (capacitors), low-
noise (resistors), etc. are used.
When replacing any of components, be sure to use only
manufacturer´s specified parts shown in the parts list.
· The supply part number is described alone in the
replacement parts list.
· Voltage and signal line
: +B Signal line
: CD-DA signal line
: Main signal line
: DVD (Video) signal line
: DVD (Audio) signal line
: FM/AM signal line
: -B Signal line
: CD-DA signal line
: Main signal line
: DVD (Video) signal line
: DVD (Audio) signal line
: FM/AM signal line
: -B Signal line
Caution!
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during
repair.
Cover the parts boxes made of plastics with aluminum foil.
Ground the soldering iron.
Put a conductive mat on the work table.
Do not touch the legs of IC or LSI with the fingers directly.
Secondary trouble can be prevented by taking care during
repair.
Cover the parts boxes made of plastics with aluminum foil.
Ground the soldering iron.
Put a conductive mat on the work table.
Do not touch the legs of IC or LSI with the fingers directly.
20 Schematic Diagram Notes
50
SA-HT885WEE
21 Block Diagram
BUFFER
QR8571
OPTICAL PICK UP UNIT
Q8551,8552
Q8561,8562
VOL4+
VOL4-
VOL3+
17
OPIN+
4
OPIN-
5
15
16
VOL3-
18
VOL1+
14
VOL1-
13
VOL2+
12
VOL2-
TRAVERSE SW
11
MUTE
CH1,2
MUTE
CH3
24
BIAS1
1
VIN1
2
VIN2
3
23
VIN3
27
9
6
SCL
SDA
5
SCL
SDA
TRVFT MUTE
SW
SP DRV
FO DRV
PWM0
145
DRV1
90
TRS DRV
SP MUTE
DRV0
91
AD1
140
DRV4
87
DRV8
88
P14
81
P2
67
66
P0
89
DRV2
85
FG
114
113
125
126
RFINP
RFINN
LPC2
LPC02
LPC1
LPC01
VIN9
VIN10
VIN5
VIN6
VIN7
VIN8
VIN3
VIN4
VIN2
VIN1
MOTOR
SPINDLE
MOTOR
TRAVERSE
EEP ROM
(Not supplied)
C3EBGC000044
IC8611
ACT F-
HFM
ACT F+
ACT T-
ACT T+
ACTUATOR
COIL
FOCUS
COIL
TRACKING
BIAS2
TRACKING COIL/FOCUS COIL/TRAVERSE/SPINDLE MOTOR DRIVE
C0GBG0000048
IC8251
PWM1
VHALF
TRV DRV
144
128
MUTE12
MUTE
CH4
20
MUTE4
MUTE3
LDIN
6
OPOUT
+
-
+
-
+
-
+
-
SHIFT
LEVEL
+
-
+
-
SHIFT
LEVEL
+
-
+
-
SHIFT
LEVEL
+
-
+
-
SHIFT
LEVEL
+
-
-
+
-
+
IC8001
MN2DS0009AP
DV3.2 LSI
LD DRIVE
LD DRIVE
130
129
131
132
133
134
135
136
137
138
123
124
LASER DIODE
B1
B2
B4
OPTICAL PICK UP UNIT
B3
A3
A2
PHOTO DETECTOR
A4
A1
LASER DIODE
AMP
HEAD
NRST
IC8601
RESET
C0EBA0000029
OUT
IC8606
RESET
C0EBE0000455
OUT
1
1
84
SA-HT885WEE BLOCK DIAGRAM
CL8230
SA-HT885WEE
51
28
15
16
19
20
21
22
26
27
IC8421
AUDIO DAC
C0FBBK000050
OP CPU STAT
OP CPU CMD
OP CPU CLK
CR/PR/R
CB/PB/B
Y/PY/G
C
Y
A MUTE
SRCK
LRCK
AD OUT0
AD OUT1
AD OUT2
AD OUT3
AD OUT1
AD OUT2
AD OUT3
DACCK
VDI03
VDI06
VDI04
VDI07
VDI07
DAC4 OUT
DAC5 OUT
DAC1 OUT
DAC2 OUT
DAC3 OUT
VDI00
VDI01
VDI02
16bit
DATA
MEMORY
12bit
ADDRESS
MEMORY
12bit
ADDRESS
MEMORY
16bit
DATA
MEMORY
MCK
NWE
NCAS
NRAS
NCSM
MDQ15
MDQ14
MDQ13
MDQ12
MA11
MDQ11
MA10
MDQ10
MA9
MDQ9
MA8
MDQ8
MA7
MDQ7
MA6
MDQ6
MA5
MDQ5
MA4
MDQ4
MA3
MDQ3
MA2
MDQ2
MA1
MDQ1
MDQ0
MA0
CLK
NWE
NCAS
NRAS
CS
DQ15
DQ14
DQ13
DQ12
DQ11
DQ10
DQ9
DQ8
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
DVD STAT
DVD CMD
DVD CLK
CR/PR/R
CB/PB/B
Y/PY/G
C
Y
1
2
2
4
4
2
AND GATE
AND GATE
1
IC8695
C0JBAA000346
IC8691
C0JBAA000346
147
181
182
183
148
149
157
156
DVD MIX L
DVD MIX R
DVD FL
DVD FR
DVD SL
DVD SR
DVD CNT
SUBW
ZFLAG
QR8420
MUTING
SCK
MD
MC
MS
DATA1
DATA4
DATA3
DATA2
LRCK
MANAGER
CLOCK
SYSTEM
ZERO DETECT
ZFLAG
CLOCK
SYSTEM
5
166
176
177
177
179
180
BCK
I/F
CONTROL
FUNCTION
I/F
INPUT
SERIAL
CONTROLLER
FUNCTION
WITH
DIGITAL FILTER
OVERSAMPLING
4X/8X
LOW-PASS FILTER
OUTPUT AMP AND
DAC
V OUT8
LOW-PASS FILTER
OUTPUT AMP AND
DAC
V OUT7
LOW-PASS FILTER
OUTPUT AMP AND
DAC
V OUT6
LOW-PASS FILTER
OUTPUT AMP AND
DAC
V OUT5
LOW-PASS FILTER
OUTPUT AMP AND
DAC
V OUT4
LOW-PASS FILTER
OUTPUT AMP AND
DAC
V OUT3
LOW-PASS FILTER
OUTPUT AMP AND
DAC
V OUT2
MODULATOR
DELTA-SIGMA
MULTI-LEVEL
ENHANCED
V OUT1
LOW-PASS FILTER
OUTPUT AMP AND
DAC
4
3
2
6
169
13
12
11
7
170
171
172
167
168
8
DATA
IC8001
DV3.2 LSI
MN2DS0009AP
IC8051
64M SDRAM
C3ABPG000145
IC8651
RFKWMH90B160
16M FLASH ROM
EXDT0
EXDT15
NEXCE
19
55
NEXWE
NEXOE
20
28
11
26
XOE
XWE
XCE
ADDRESS
ADDRESS
EXADR20
EXADR19
EXADR18
EXADR17
EXADR16
A20
A19
A18
A17
A16
A15
A8
A7
65
54
56
41
10
9
16
17
48
57
31
29
27
23
25
25
26
24
39
33
37
37
38
40
40
36
32
28
30
30
EXADT15
EXADT8
EXADT7
42
43
EXADT0
46
47
48
49
50
51
58
59
60
61
62
63
64
18
A0
1
8
18
25
DATA
ADDRESS
DQ15
DQ0
45
43
41
39
36
34
32
30
44
42
40
35
38
38
33
31
29
223
221
227
228
229
38
16
17
18
19
216
217
213
203
201
199
211
209
207
208
210
212
200
198
198
202
206
230
237
232
236
240
242
244
246
247
245
243
241
53
51
50
48
47
45
44
42
13
11
10
8
7
5
4
2
35
22
34
33
32
31
30
29
26
25
24
23
SA-HT885WEE BLOCK DIAGRAM
AMP
Q8321
AMP
Q8325
AMP
Q8331
AMP
Q8335
AMP
Q8341
SA-HT885WEE
52
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