Sony HCD-GTR6 / HCD-GTR6B / HCD-GTR7 / HCD-GTR8 / HCD-GTR8B / MHC-GTR6 / MHC-GTR8 Service Manual ▷ View online
25
25
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
5-4. BLOCK DIAGRAM — MAIN SECTION —
J1001
J020
RCH
L
R
AUDIO
IN
INPUT SELECT SWITCH
IC400
MIC AMP
IC1000
(1/2)
MIC AMP
IC1000
(2/2)
RV1001
MIC
LEVEL
MIC-DET
AUDIO IC CLOCK
AUDIO IC DA
TA
LINE MUTE
SYSTEM CONTROL
IC500 (3/6)
9
SA2
CD-L
42
76
52
53
51
METER LEVEL
71
V
AC-IN
70
RCH
L
R
VIDEO
IN
DBFB
SWITCH
Q128
ST-L
TAPE_ PB-L
X
TAPE/TUNER
TAPE/TUNER
E
AMP/SUBWOOFER
RF/SERVO
REC OUT L
TAPE/TUNER
D
AMP/SUBWOOFER
AMP/SUBWOOFER
DBFB F/B
R-IN
L-IN
45
TAPE-L
43
ST-L
41
VIDEO-L
44
PC-L
46
MIC
FL-IN
26
OUTL
36
RECBL
25
AGCOUTL
23
SWOUT
27
BB2L
48
REFOUT
28
BB1L
DATA 21
22
CLOCK
RECAR
RECAL
SW OUT
MUTE
Q270
MUTE
Q245
Q721
SWITCH
LINE MUTE
Q290
Q210
J1004
MIC
METER LEVEL
AMP
IC252
GTR7
GTR8/8B
GTR8/8B
IC253
IC254
IC730
8
CIG-CLK
GIG-BK
CIG-DA
TA
GIG-LA
TCH
VF+
VF-
D+3.3V
+VG
35
28
26
37
1
5 3
11
13
ND900
10
12
48
45
46
47
9
Q901
7
5
3
37
6
1
IC251
USB RECORD
PREAMP
: AUDIO
: TAPE PLAY
: MIC
: REC
: CD PLAY
: TUNER
Signal Path
R-CH is omitted due to same as L-CH.
CD LCH
RF/SERVO
Q903
Q902
SWITCH
SWITCH
GTR7/8/8B
GTR7/8/8B
X
B
X
C
I
J
F
G
SECTION
(Page 23)
(Page 24)
(Page 26)
(Page 26)
(Page 26)
SECTION
SECTION
SECTION
(Page 24)
(Page 24)
(Page 23)
SECTION
SECTION
SECTION
SECTION
26
26
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
5-5. BLOCK DIAGRAM — AMP/SUBWOOFER SECTION —
IC1301: GTR7/8/8B
IC1300: GTR6/6B
IC1300: GTR6/6B
MUTING
Q1312
-1314
FR-IN
DBFB F/B
FL-IN
31
STK MUTE
12
16
OVERLOAD
DETECT
Q1303,1308
+
+
33
77
LINK RELA
Y
97
EEPROM_DA
TA
95
5
6
EEPROM_CLOCK
HP DET
AC-CUT
Q1301
FRONT REPLAY
Q1302
+VL
-VL
IN2
ST BY
+RE1
-RE1
+RE2
-RE2
+VCC
-VCC
+
-
-
+
FRONT SPEAKER
SUB WOOFER
OUT
L
R
HEADPHONE
J1005
RY1301
RY862
+
-
-
+
L
R
FAN
DRIVE
Q031-Q034
DRIVE
TH1301
THERMAL
DETECT
Q1309,Q1310
67
THERMAL
V
ACS
TB801
JK1301
D104
18
11
10
10
22
9
14
8
SIGNAL PATH
POWER AMP
32
PROTECTOR
50
FR RELA
Y
56
FAN ON
G
MAIN
TH1300
11
4
5
6
7
3
2
13
SUBWOOFER POWER AMP
IC800
SYSTEM CONTROL
IC500 (5/6)
PROTECTOR
Q1305,Q1307
DC DETECT
Q1304,Q1306
OVERLOAD
DETECT
Q850
Q788
RELAY
DRIVE
Q789
OVERLOAD
DETECT
Q800
RY1300
EXCEPT MX
GTR7/8/8B
HI SPEED
SWITCH
Q035
PROTECTOR
SWITCH
Q532
+
-
-
+
SURROUND SPEAKER
L
R
JK1300
RELAY DRIVE
Q1300
45
SW
-RELA
Y
R-CH is omitted due to same as L-CH.
EEPROM
IC675
FAN DETACT
Q030
GTR8 / GTR8B
SUB WOOFER
OUT
+
-
TB802
GTR7
GTR7/8/8B
GTR7/8
GTR7/8
UNREG
+VH
STANDBY
Q1315,
Q1316
: AUDIO
IN1
SW-R IN
SW-L IN
AC DETACT
15
M891
DC FAN
DC FAN
M892
21
AC CUT
DETECT
FAN
DRIVE
Q821,824,825
Q036,038,039
M893
DC FAN
FAN
F
MAIN
I
MAIN
SECTION
SECTION
SECTION
(Page 25)
(Page 25)
(Page 25)
H
DISPLAY/POWER
SECTION
(Page 27)
27
27
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
5-6. BLOCK DIAGRAM — DISPLAY/POWER SECTION —
M
MOTOR
DRIVE
IC701
MOTOR(LD)
M751
9
7
+5V
3.3V
94 MASTER VOL
STK MUTE
LMR
MASTER
VOLUME
VOLUME
88 ADKEY1
90 ADKEY2
73 POWER KEY
S945,S950-54,
S908-06
4
SIRCS
X514
5MHz
15 X-IN
13 X-OUT
X510
32.768kHz
10 XC-IN
11
36
34
XC-OUT
SYSTEM CONTROL
IC500 (6/6)
68
STBY-RELAY
12
RESET
20
AC-CUT
D1203
RECT
D1314
RECT
D1313
+VL
F1261
VL
VL
VH
VH
VP
VF
VF
GND
F1251
F1241
F1231
R1271
-VL
+VH
-VH
+33V
REGULATOR
Q1250
POWER ON/OFF
RELAY DRIVE
Q1200
+ VG
(+32V)
D1252
RECT
VF+
VF-
ND900
VACUUM
FRUORESCENT
DISPLAY
RY1200
PT1250
POWER
POWER
TRANSFORMER
RESET
SWITCH
Q005
REMOTE CONTROL
SIGNAL RECEIVER
IC900
EVER +10V
AC-CUT
DETACT
DETACT
93 OP DIAL
ENCODER
ROTARY
ROTARY
ENCODER
OPERATION
DIAL
69
OVER_VOLTAGE_DET
RECT
D600
M +9V
LED +9V
ST+9V
3
27
USB_OE
55
MTK_POWER_CONTROL
+3.3V
+9V
+9V
+AVDD5V
+9V
+DVDD5V
AC3
AC3
F1271
F1281
UNREG/UNREGULATE
S936
S935
+9V REG
IC200
+9V REG
IC055
+4V REG
IC676
+5V REG
IC065
+3.3V REG
IC095
S916,S918,S920,S922,
S924,S926,S928,S930,
S932,S934,S936,S938,
S924,S926,S928,S930,
S932,S934,S936,S938,
S940-42
89 ADKEY0
34
31
S915,S917,S919,S921,
S923,S925,S927,S929,S931,
CLK1
RXD1
TXD1
RTS1
CN VSS
RESET
GTR7/8/8B
CN040
(FOR PROGRAMMING)
LINK RELAY
PROTECTOR
32
33
CNVss
RESET
12
9
D901
D900
LED
SWITCH
Q900
LED +9V
EVER 3.3V
STBY LED
2
LED DRIVER-DATA
LED DRIVER-CLOCK
7
1
41
LED DRIVER-LATCH
LED DRIVER-OE
4
8
6
5
1,
2,
2,
21
|
24
15
|
20
LATCH
IC901
LED +9V
D923-928
D922,
D929-931
D929-931
+3.3V REG
Q007-009
D1201
D010
D1202
EVER 3.3V
Q006
SUB POWER
TRANSFORMER
PT1200
8
6
D1253-1256
S1200
AC IN
230-240V
220V
120V/127V
VOLTAGE
SELECTOR
11
12
13
D1022
D1021
D1020
14
D919
GTR7/8/8B
Q712,Q717
RECT
RECT
Q713,Q714
RECT
Q720
RECT
Q719
RECT
Q696,Q718
AMP/SUFWOOFER
H
S933,S937
SECTION
(Page 26)
28
28
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
5-7. CIRCUIT BOARDS LOCATION
Motor Drive board
included in METER DISPLAY ASSY
included in METER DISPLAY ASSY
MAIN board
HEAD PHONE board
MIC CD board
CD SW board
STR board
Display board
SW board
included in METER DISPLAY ASSY
included in METER DISPLAY ASSY
LED board
included in METER DISPLAY ASSY
included in METER DISPLAY ASSY
USB CD board
MIC RV board
TUNER PACK
FRONT board
SUBWOOFER board
DMB19 board
DRIVER board
SENSOR board
MOTOR (TB) board
MOTOR (LD) board
SUBTRANS board
TRANS board
HUB board
SW board
• Note For Printed Wiring Boards And Schematic Diagrams
Note on Printed Wiring Board:
·
·
X : parts extracted from the component side.
·
Y : parts extracted from the conductor side.
·
: Pattern from the side which enables seeing.
(The other layer' s patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
· Indication of transistor.
· A : B+ Line.
· B : B± Li ne.
· Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
· BD93 and Driver sections.
no mark : CD PLAY
· Except BD93 and Driver sections.
no mark : FM
(
· B : B± Li ne.
· Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
· BD93 and Driver sections.
no mark : CD PLAY
· Except BD93 and Driver sections.
no mark : FM
(
)
: C
D P
LAY
<
>
:
TAPE P
LAY
[
]
:
TAPE R
EC
∗
: Impossible to measure
· Voltages are taken with a VOM (Input impedance 10
M
Ω).
Voltage variations may be noted due to normal production
tolerances.
· Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
· Circled numbers refer to waveforms.
· Signal path.
F
F
: AUDIO
f
: TUNER
E
: TAPE PLAY
G : TAPE REC
N
N
: MIC
J
: CD PLAY
c : DIGITAL
I : USB
I : USB
· Abbreviation
E2
E2
: 120V AC area in E model
E3
: 240V AC area in E model
E51
: Chilean and Peruvian model
AR
: Argentina model
AUS
: Australian model
MX
: Mexican model
Note: The components identifi ed by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specifi ed.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
Boards requiring use of unleaded solder are printed with the lead
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher than
• Unleaded solder melts at a temperature about 40 °C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to fl ow) than
Unleaded solder is more viscous (sticky, less prone to fl ow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may also
It is best to use only unleaded solder but unleaded solder may also
be added to ordinary solder.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
Note on Schematic Diagram:
· All capacitors are in µF unless otherwise noted. (p: pF)
· All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
· All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
· 2 : nonfl ammable resistor.
· C : panel designation.
· C : panel designation.
· Abbreviation
MX
MX
: Mexican model
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