DOWNLOAD Panasonic SA-HE90E / SA-HE90EB / SA-HE90EG Service Manual ↓ Size: 3.65 MB | Pages: 93 in PDF or view online for FREE

Model
SA-HE90E SA-HE90EB SA-HE90EG
Pages
93
Size
3.65 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / AV CONTROL RECEIVER
File
sa-he90e-sa-he90eb-sa-he90eg.pdf
Date
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RELAY
DRIVER
REGULATOR
REGULATOR
REGULATOR
REGULATOR
REGULATOR
REGULATOR
REGULATOR
REGULATOR
REGULATOR
REGULATOR
REGULATOR
REGULATOR
BA25BC0FP
IC1701
SIGNAL LINES
: MAIN SIGNAL LINE
: FM & AM SIGNALS LINE
: CD SIGNAL LINE
: PLAYBACK SIGNAL LINE
: RECORDING SIGNAL LINE
(     )        INDICATES THE PIN NO. OF THE RIGHT CHANNEL
-B
+B
+B
+B
+B
+B
+B
E601
RCH
RELAY
DRIVER
RELAY
DRIVER
RELAY
DRIVER
+
+
+
M
RELAY
DRIVER
+
POWER TRANSFORMER
SUB
 TRANSFORMER
T701
D701~D704
F3
F4
Q708,D708
Q724
T751
D721~D728
D751~D754
Q753
Z751
F1
JK791
AC IN
L701
AC1
AC2
TO FL DISPLAY
F5
Q1701~Q1703
D741~D744
Q723
Q725
Q706
Q701,Q703,Q704
Q752
Q707,D707
D755
Q603
Q601
Q1681
(Q1682)
HP601
HEADPHONES
RL603
RL601
RL604
HP MUTING
JK601
FRONT
SPEAKERS A
JK603
SURROUND
SPEAKERS
D614
D611
D613
Q605
JK603
CENTER
SPEAKER
RL602
D612
JK602
FRONT
SPEAKERS B
FAN MOTOR
DRIVER
FAN MOTOR
Q771~Q781
Q754
Q751
Q602
RL751
12 Schematic Diagram
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(All schematic diagrams may be modified at any time with the development of new technology.)
Notes:
S301
Slide Switch
S950
Power Switch
S951
Speaker Switch
S954
Timer Swtich
S955
Memory Switch
S956
FM Mode Switch
S957
Band Switch
S958
Preset Switch
S959
Tuning Up Switch
S960
Tuning Down Switch
S961
Speaker B Switch
S962
Reset Help Switch
S965
Digital Switch
S966
DVD 6Ch Switch
S967
+/Right Switch
S968
-/Left Switch
S969
Tone/Balance Switch
S970
Tape Monitor Switch
S971
Sub. Woofer Level Switch
VR901 Vr Volume Encoder
VR902 Vr Rotary Encoder
VR903 Vr Rotary Encoder
The voltage value and waveforms are the reference voltage of this unit measured by DC electronic
voltmeter (high impedance) and oscilloscope on the basis of chassis. Accordingly, there may arise
some error in voltage values and waveformsdepending upon the internal impedance of the tester or
the measuring unit.
< > ...FM
●   
Importance safety notice:
Components identifed 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. Whenreplacing any of components, be sure to use only
manufacturer’s specified parts shown in the parts list.
●   
file:///C|/Ìîè äîêóìåíòû/he90/s1200000000x.html (1 of 2) [14.08.2002 12:02:07]
Caution!
IC, LSI and VLSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
Cover the parts boxes made of plastics with aluminium foil.
●   
Put a conductive mat on the work table.
●   
Ground the soldering iron.
●   
Do not touch the pins of IC, LSI or VLSI with fingers directly.
●   
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file:///C|/Ìîè äîêóìåíòû/he90/s1200000000x.html (2 of 2) [14.08.2002 12:02:07]
3
2
1
3
2
1
4
5
6
SCHEMATIC DIAGRAM - 1
NC
+V
-V
GND1
GND2
IN3
C1
IN2
C2
O2
O1
C4
IN1
C3
Vcc
GND
OUTPUT
Vcc
GND
OUTPUT
JK1302
E1301
IC1203
IC1201
L1303
JK1341
D351
UDZSTE175R6B
C1202
0.22
Q351
Q352
JK352
IC351
L1304
RLQZ150M-0
JK1303
JK1301
JK351
5
6
7
8
3
4
2
1
VSS
VCC
8
9
10
11
12
13
14
7
6
5
3
4
2
1
R
L
R
L
1
2
4
3
5
6
7
14
13
12
11
10
9
8
3
1
2
3
1
2
IC1203
C0ABBB000127
OP AMP
IC1201
NJM2060MTE1
OP AMP
Q353
2SD592AQSTA
REGULATOR
Q352
2SB621AQSTA
REGULATOR
E1201
STBY
GND PT
IC351
NJM2279MTE1
VIDEO SELECTOR
RS CH
LS CH
TV MONITOR
OUT
VCR1
OUT
DVD
VCR1
IN
TV
DVD
C CH
SW CH
DVD
COAXIAL IN
DIGITAL IN CD
(OPTICAL)
DIGITAL IN TV
(OPTICAL)
V_SELB
V_SELA
RX2
SW_DSP
+5VA
RX3
L_DSP
R_DSP
RX1
R1202
47K
C1201
0.01
C1222
25V10
R1201
1K
C1223
0.1
C1203
16V33
R351
75
C351
47P
R352
75
R353
75
C352
47P
R1203
2.2K
C1204
0.01
R1204
18K
C1312
0.1
C1311
0.1
R1310
10
C1303
0.1
R1302
1K
R1301
3.3K
C1302
0.01
R1303
47
C1206
4700P
C1208
4700P
R354
75
C353
16V47
C354
16V47
C355
16V47
R364
75
R355
10K
R357
10K
R356
10K
D354
B0ACCK000005
R358
1K
R359
1K
C1307
0.01
R1309
47
R1306
47
R1307
150
C1308
0.1
R1308
10
C1309
0.1
C1306
0.1
R1304
3.3K
R1305
1K
C1305
0.01
C1313
0.01
C356
0.1
C357
0.1
C358
6.3V100
C359
6.3V100
C360
0.01
R363
22
R362
1.8K
C361
6.3V100
C362
6.3V100
C363
0.01
R360
22
R361
1.8K
C1210
16V33
C1205
16V33
R1206
47K
R1207
47K
R1205
1K
R1208
1K
C1207
2700P
C1209
2700P
R1209
2.2K
R1210
18K
R1225
2.2K
R1211
18K
C1221
0.1
C1212
100P
R1215
3.3K
R1214
3.3K
C1216
50V10
R1216
1.5K
C1214
220P
C121
1
100P
R1219
3.3K
R1212
3.3K
C1215
50V10
R1213
1.5K
C1213
220P
C1217
0.01
C1218
0.01
C1220
25V10
C1219
25V10
R1217
47K
R1218
47K
R1341
1K
R1342
1K
R1343
1K
R1344
1K
D352
UDZSTE175R6B
<5.06V>
<5.70V>
<13.87V>
E1201
VSS
VCC
DIGITAL CIRCUIT
: MAIN SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE
C1301
10P
C1304   10P
TO
VCR
CIRCUIT
(W353) ON
SCHEMATIC
DIAGRAM-14
Vcc
GND
OUTPUT
3
1
2
RX4
R1312
47
C1315
0.01
C1314
10P
R1311
3.3K
C1316
0.1
DIGITAL IN CD
(OPTICAL)
JK1304
CN354
TO
S-VIDEO CIRCUIT
(W354) ON
SCHEMATIC
DIAGRAM-13
CN353
D353
B0ACCK000005
C1341
330P
C1342
330P
C1343
330P
C1344
330P
R1313
1K
<0V>
<0V>
<0V>
<14.29V>
<0V>
<0V>
<0V>
<0V>
<0V>
<0V>
<-16.42V>
<0V>
<0V>
<0V>
<0V>
<0V>
<0V>
<-16.46V>
<0V>
<0V>
<0V>
<14.29V>
<0V>
<0V>
<0V>
<0V>
<0V>
<0V>
<4.53V>
<5.14V>
<0V>
<4.12V>
<0V>
<0V>
<0V>
<-5.1
1V>
<-15.84V>
<-5.65V>
<-5.04V>
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