Sony HCD-GPX5G, HCD-GPX7G, HCD-GPX8G Schematic
HCD-GPX5G/GPX7G/GPX8G
SERVICE MANUAL
Ver. 1.0 2012.03
• HCD-GPX5G is the amplifi er, USB, CD player and tuner
section in MHC-GPX5.
• HCD-GPX7G is the amplifi er, USB, CD player and tuner
section in MHC-GPX7.
• HCD-GPX8G is the amplifi er, USB, CD player and tuner
section in MHC-GPX8. Photo: HCD-GPX8G (E2 Model)
“WALKMAN” and “WALKMAN” logo are registered
trademarks of Sony Corporation.
MPEG Layer-3 audio coding technology and patents licensed
from Fraunhofer IIS and Thomson.
Windows Media is either a registered trademark or trademark
of Microsoft Corporation in the United States and/or other
countries.
This product contains technology subject to certain
intellectual property rights of Microsoft.
Use or distribution of this technology outside of this product
is prohibited without the appropriate license(s) from
Microsoft.
Amplifi er section
The following are measured at Mexican model:
AC 120 V – 240 V, 60 Hz
Other models:
AC 120 V – 240 V, 50/60 Hz
MHC-GPX8
Front/Satellite speaker
Power Output (rated):
300 W + 300 W (at 4 ohms, 1 kHz,
1% THD)
Front speaker
RMS output power (reference):
360 W + 360 W (per channel at 6 ohms,
1 kHz)
Satellite speaker
RMS output power (reference):
180 W+ 180 W (per channel at 12 ohms,
1 kHz)
Subwoofer
RMS output power (reference):
260 W + 260 W (per channel at 8 ohms,
100 Hz)
MHC-GPX7
HIGH speakers
Power Output (rated):
300 W + 300 W (at 4 ohms, 1 kHz,
1% THD)
RMS output power (reference):
495 W + 495 W (per channel at 4 ohms,
1 kHz)
LOW speakers
RMS output power (reference):
180 W + 180 W (10 ohms, 100 Hz)
MHC-GPX5
Front speaker
Power Output (rated):
240 W + 240 W (at 5 ohms, 1 kHz,
1% THD)
RMS output power (reference):
370 W + 370 W (per channel at 5 ohms,
1 kHz)
Subwoofer
RMS output power (reference):
360 W (5 ohms, 100 Hz)
Inputs
TV (AUDIO IN) L/R
Voltage 1.2 V, impedance 47 kilohms
DVD/SAT (AUDIO IN) L/R
Voltage 1.2 V, impedance 47 kilohms
PC/GAME (AUDIO IN) L/R
Voltage 1.2 V, impedance 47 kilohms
MIC (MHC-GPX8/MHC-GPX7 only)
Sensitivity 1 mV, impedance
10 kilohms
A (USB), B (USB) port: Type A
USB section
Supported bit rate
MP3 (MPEG 1 Audio Layer-3):
32 kbps – 320 kbps, VBR
WMA: 48 kbps – 192 kbps
AAC: 48 kbps – 320 kbps
Sampling frequencies
MP3 (MPEG 1 Audio Layer-3):
32 kHz/44.1 kHz/48 kHz
WMA: 44.1 kHz
AAC: 44.1 kHz
CD Section
Model Name Using Similar Mechanism
CD Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
Supported USB device
Mass Storage Class
Maximum current
500 mA
Disc player section
System
Compact disc and digital audio system
Laser Diode Properties
Emission Duration: Continuous
Laser Output*: Less than 44.6 μW
* This output is the value measurement
at a distance of 200 mm from the
objective lens surface on the Optical
Pick-up Block with 7 mm aperture.
Frequency response
20 Hz – 20 kHz
Signal-to-noise ratio
More than 90 dB
Dynamic range
More than 88 dB
Tuner section
FM stereo, FM/AM superheterodyne tuner
Antenna:
FM lead antenna
AM loop antenna
FM tuner section
Tuning range
87.5 MHz – 108.0 MHz (50 kHz step)
AM tuner section
Tuning range
Pan American models:
530 kHz – 1,710 kHz (10 kHz step)
531 kHz – 1,710 kHz (9 kHz step)
E Model
NEW
CDM74I-DVBU201//M
CMS-ST6RFS3
Other models:
530 kHz – 1,610 kHz (10 kHz step)
531 kHz – 1,602 kHz (9 kHz step)
General
Power requirements
Mexican model: AC 120 V – 240 V, 60 Hz
Other models: AC 120 V – 240 V, 50/60 Hz
Power consumption
MHC-GPX8: 250 W
MHC-GPX7: 230 W
MHC-GPX5: 200 W
Dimensions (w/h/d) (excl. speakers)
(Approx.)
280 mm × 355 mm × 440 mm
Mass (excl. speakers) (Approx.)
HCD-GPX8G/HCD-GPX7G/
HCD-GPX5G: 7.0 kg
Supplied accessories
Remote control (1)
R6 (Size AA) batteries (2)
FM lead/AM loop antenna (1)
Spacer A (MHC-GPX8 only) (2)
Spacer B (MHC-GPX8 only) (2)
Speaker pads (MHC-GPX7 only) (8)
Design and specifi cations are subject to change
without notice.
9-890-600-01
2012C08-1
2012.03
©
COMPACT DISC RECEIVER
Sony Corporation
Published by Sony EMCS (Malaysia) PG Tec
HCD-GPX5G/GPX7G/GPX8G
NOTES ON CHIP COMPONENT REPLACEMENT
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
FLEXIBLE CIRCUIT BOARD REPAIRING
• Keep the temperature of soldering iron around 270 °C during
repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
To Exposed Metal
Parts on Set
1.5 kΩ0.15 μF
Earth Ground
AC
voltmeter
(0.75 V)
Fig. A. Using an AC voltmeter to check AC leakage.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous
radiation exposure.
This appliance is classified as a CLASS 1
LASER product. This marking is located on
the rear exterior.
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
TABLE OF CONTENTS
HCD-GPX5G/GPX7G/GPX8G
1. SERVICING NOTES
................................................ 4
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 8
2-2. Case ................................................................................. 9
2-3. Loading Panel ................................................................. 9
2-4. Front Panel Section ......................................................... 10
2-5. CD Mechanism Section (CDM741-DVBU201//M) ....... 10
2-6. TUNER1AM3R Board ................................................... 11
2-7. MAIN Board ................................................................... 11
2-8. Back Panel Section ......................................................... 12
2-9. 4CH DAMP board .......................................................... 13
2-10. Chassis Section ............................................................... 14
2-11. Cover Dust CDM ........................................................... 15
2-12. Optical Pick Up ............................................................... 15
2-13. DMB22 Board ................................................................. 16
2-14. DRIVER Board, SWITCH Board ................................... 16
2-15. SENSOR Board .............................................................. 17
2-16. MOTOR (TB) Board....................................................... 17
2-17. MOTOR (LD) Board ...................................................... 18
3. TEST MODE ............................................................. 19
4. ELECTRICAL CHECK .......................................... 22
5. DIAGRAMS
5-1. Block Diagram - CD/USB Section - ............................... 23
5-2. Block Diagram - MAIN Section - ................................... 24
5-3. Block Diagram - AMP Section - ..................................... 25
5-4. Block Diagram - PANEL/POWER SUPPLY Section - .. 26
5-5. Printed Wiring Board -
4CH DAMP Board (Component side) ............................ 28
5-6. Printed Wiring Board -
4CH DAMP Board (Conductor side) .............................. 29
5-7. Schematic Diagram - 4CH DAMP Board (1/3) - ............ 30
5-8. Schematic Diagram - 4CH DAMP Board (2/3) - ............ 31
5-9. Schematic Diagram - 4CH DAMP Board (3/3) - ............ 32
5-10. Printed Wiring Board - DISPLAY Board - ..................... 33
5-11. Schematic Diagram - DISPLAY Board - ........................ 34
5-12. Printed Wiring Board -
MAIN Board (Component side) ..................................... 35
5-13. Printed Wiring Board -
MAIN Board (Conductor side) ....................................... 36
5-14. Schematic Diagram - MAIN Board (1/4) - ..................... 37
5-15. Schematic Diagram - MAIN Board (2/4) - ..................... 38
5-16. Schematic Diagram - MAIN Board (3/4) - ..................... 39
5-17. Schematic Diagram - MAIN Board (4/4) - ..................... 40
5-18. Printed Wiring Board -
USB, VOLUME and MIC Board - ................................. 41
5-19. Schematic Diagram -
USB, VOLUME and MIC Board - ................................. 42
5-20. Printed Wiring Board - DRIVER, SENSOR, SWITCH,
MOTOR (LD) and MOTOR (TB) Board ....................... 43
5-21. Schematic Diagram - DRIVER, SENSOR, SWITCH,
MOTOR (LD) and MOTOR (TB) Board - ..................... 44
5-22. Printed Wiring Board - TUNER1AM3R Board ............. 45
5-23. Schematic Diagram - TUNER1AM3R Board - .............. 45
5-24. Printed Wiring Board - DMB22 Board - ........................ 46
5-25. Schematic Diagram - DMB22 Board (1/3) - .................. 47
5-26. Schematic Diagram - DMB22 Board (2/3) - .................. 48
5-27. Schematic Diagram - DMB22 Board (3/3) - .................. 49
6. EXPLODED VIEWS
6-1. Case Section ................................................................... 61
6-2. Front Panel Section ........................................................ 62
6-3. Back Panel Section ......................................................... 63
6-4. Chassis Section ............................................................... 64
6-5. CD Mechanism Section (1)
(CDM74I-DVBU201//M) ............................................... 65
6-6. CD Mechanism Section (2) ............................................. 66
7. ELECTRICAL PARTS LIST ............................... 67
3
HCD-GPX5G/GPX7G/GPX8G
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The fl exible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc refl ective surface by the objective lens in the optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the leadfree 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 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 ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
MODEL IDENTIFICATION
– Back Panel –
PART No.
Model Part No.
HCD-GPX8G: E2, E51, E4
HCD-GPX7G: E2, E51
HCD-GPX5G: E2, E51
HCD-GPX8G: MX
HCD-GPX7G: MX
HCD-GPX5G: MX
4-411-595-0[]
4-411-595-1[]
4-411-595-2[]
4-411-595-3[]
4-411-595-4[]
4-411-595-5[]
NOTE OF REPLACING THE IC502 ON THE DMB22
BOARD
IC502 on the DMB22 board cannot exchange with single.
When these parts on the DMB22 board are damaged,
exchange the entire mounted board.
RELEASING THE DISC TRAY LOCK
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Releasing Procedure:
1. Press [I/
STANDBY] button to turn the power on.
1
2. Press the [CD/DISC SKIP] button to select CD function.
3. While pressing the [x] button, press the [ENTER] button for
more 5 seconds).
4. The message “UNLOCKED” is displayed and the disc tray is
unlocked.
Note: When “LOCKED” is displayed, the slot lock is not released by
turning power on/off with the
[I/1 STANDBY] button.
4
HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF
HCD-GPX5G/GPX7G/GPX8G
CD mechanism deck (CDM74I)
1 Turn the gear to the direction of the arrow.
(The location of this gear pulley is at the
bottom side of the CDM)
chassis side
gear
By using (-) screw driver
5
HCD-GPX5G/GPX7G/GPX8G
CAPACITOR DISCHARGE FOR ELECTRIC SHOCK PREVENTION
in checking the DAMP 4CH board, make a capacitor
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for electrical shock prevention.
4CH DAMP board
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:
:
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LQFKHFNLQJWKH5(*8/$7256:,7&+,1*ERDUGPDNH
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6
PRECAUTION WHEN INSTALLING A NEW OP UNIT/
PRECAUTION BEFORE UNSOLDERING THE STATIC
ELECTRICITY PREVENTION SOLDER BRIDGE
HCD-GPX5G/GPX7G/GPX8G
When installing a new OP unit, be sure to connect the fl exible
printed circuit board fi rst of all before removing the static electric-
ity prevention solder bridge by unsoldering.
Remove the static electricity prevention solder bridge by unsoldering after the fl exible printed circuit board has already been con-
nected.
(Do not remove nor unsolder the solder bridge as long as the OP
unit is kept standalone.)
7
HCD-GPX5G/GPX7G/GPX8G
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
SET
2-2. CASE
(Page 9)
SECTION 2
2-3. LOADING PANEL
(Page 9)
2-4. FRONT PANEL SECTION
(Page 10)
2-5. CD MECHANISM SECTION
(CDM74I-DVBU201/M)
(Page 10)
2-6. TUNER1AM3R BOARD
(Page 11)
2-7. MAIN BOARD
(Page 11)
2-8. BACK PANEL SECTION
(Page 12)
2-9. 4CH DAMP BOARD
(Page 13)
2-10. CHASSIS SECTION
(Page 14)
2-11. COVER DUST CDM
(Page 15)
2-12. OPTICAL PICK UP
(Page 15)
2-13. DMB22 BOARD
(Page 16)
2-14. DRIVER BOARD, SWITCH BOARD
(Page 16)
2-15. SENSOR BOARD
(Page 17)
2-16. MOTOR (TB) BOARD
(Page 17)
2-17. MOTOR (LD) BOARD
(Page 18)
8
Note: Follow the disassembly procedure in the numerical order given.
HCD-GPX5G/GPX7G/GPX8G
2-2. CASE
4 panel, side (L)
1 two screws
(+BVTP 3x14)
2
two screws
(+BVTP 3x14)
3
56 two screws
(+BVTP 3x14)
4 panel, side (R)
3
2 two screws
(+BVTP 3x14)
2-3. LOADING PANEL
2 Pull-out the disc tray
3
panel, loading
1
two screws
(+BVTP 3x14)
CD mechanism deck (CDM74I)
1 Turn the gear to the direction of the arrow.
(The location of this gear pulley is at the
bottom side of the CDM)
chassis side
gear
By using (-) screw driver
9
HCD-GPX5G/GPX7G/GPX8G
2-4. FRONT PANEL SECTION
2 one screw
(+BVTP 3x8)
1
one screws
(+BVTP 3x8)
For GPX7G/
GPX8G
1 four screws
(+BVTP 3x8)
2-5. CD MECHANISM SECTION (CDM74I-DVBU201//M)
CD mechanism section
( CDM74I-DVBU201//M)
2 one screw
(+BVTP 3x8)
3
wire (flat type) (17core) CN601
4
CN707 (4P)
5
CN705 (10P)
Peel off the cushion
and tape on the wire
(flat type) from TUNER.
cushion
tape
4 one screw
(BVTP 3x8)
10
2
wire (flat type) (19core) CN702
1
wire (flat type) (13core) CN700
3
wire (flat type) (15core) CN703
2-6. TUNER1AM3R BOARD
shield plate top
3
5
TUNER1AM3R board
4
shield plate bottom
HCD-GPX5G/GPX7G/GPX8G
1 wire (flat type) (9 core)
(CN513)
2
two screws
(BVTP 3x8)
2-7. MAIN BOARD
1 two screws
(+BVTP 3x8)
3 MAIN board
2 two screws
(+BVTP 3x8)
11
HCD-GPX5G/GPX7G/GPX8G
2-8. BACK PANEL SECTION
1 CN1405 (3P)
5 fan, DC
4 cover, fan
3 two screws
(BVTP 3x8)
2 two screws
(BVTP 3x8)
9 back panel section
for GPX8G
one screw
7
(+BVTP 3x8)
6 two screws
(BVTP 3x8)
8 one screws
(BVTP 3x8)
12
2-9. 4CH DAMP BOARD
HCD-GPX5G/GPX7G/GPX8G
1 three screws
(PTPWH 2.6x12)
sheet thermal
42 CN2 (9P)
3 two screws
(BVTT 3x8)
5 CN3 (5P)
3 two screws
(BVTT 3x8)
6 4CH DAMP board
13
HCD-GPX5G/GPX7G/GPX8G
2-10. CHASSIS SECTION
1 two screws
(+BVTP 3x8)
5 nine screws
(+PWH 3x8)
2 bracket, SMPS (shield)
1
(+BVTP 3x8)
two screws
6
REGULATOR,
SWITCHING
7 chassis
4
3 CN1 (2P)
E
14
2-11. COVER DUST CDM
1 two screws
(+BVTP 3x10)
2 cover dust (CDM)
5 go through the
hole of cover dust
HCD-GPX5G/GPX7G/GPX8G
3 four screws
(+BVTP 3x10)
4 bracket, holder (DMB)
1 two screws
(+BVTP 3x10)
2-12. OPTICAL PICK UP
Solder the short-land
(Location of this point is at the bottom
side of optical device)
6 CDM74I
1 floating screw
+PTPWH M2.6)
(
4 insulator
3 insulator screw
2 CDM74I assy
4 insulator
3 insulator screw
4 insulator
3 insulator screw
solder the short land
5
device, optical
6
(CMS-ST6RFS3)
4 insulator
3 insulator screw
15
HCD-GPX5G/GPX7G/GPX8G
2-13. DMB22 BOARD
1 four screws
(+BVTP 3x10)
5
DMB22 board
6 bracket, holder (DMB)
7 CDM74I-DVBU201//M
2 clamp
4 wire (flat type)
(21core) (CN501)
3 CN801 (6P)
2-14. DRIVER BOARD, SWITCH BOARD
5 DRIVER board
3 CN704 (2P)
4 wire (flat type) (5 core)
(CN702)
1 two screws
(+BTTP (M2.6))
2 CN703 (4P)
6 one screw
(+BTTP (M2.6))
7 SWITCH board
16
2-15. SENSOR BOARD
2 tray
HCD-GPX5G/GPX7G/GPX8G
1 floating screw
(+PTPWH M2.6)
8 one screw
(+BTTP (M2.6))
3 belt (table)
0 SENSOR board
4 floating screw
(+PTPWH M2.6)
5 pulley (table)
7 gear (geneva)
2-16. MOTOR (TB) BOARD
6 floating screw
(+PTPWH M2.6)
9 CN731
(3P)
table
1 gear (stopper)
2
1 gear (stopper)
5 motor assy, table (M741)
3 wire (flat type) (5 core)
(CN742)
7 MOTOR (TB) board
6 remove the two solderings of motor
4 two screws
(+BTTP (M2.6))
17
HCD-GPX5G/GPX7G/GPX8G
2-17. MOTOR (LD) BOARD
2 remove the two solderings of motor
4 motor assy, loading (M751)
3 two screws
(+BTTP (M2.6))
5 MOTOR (LD) board
1 belt (loading)
18
SECTION 3
TEST MODE
HCD-GPX5G/GPX7G/GPX8G
[PANEL TEST MODE]
• This mode is used to check the fl uorescent indicator tube,
LEDs, keys, [MASTER VOLUME] jog, model, destination and software version.
• Procedure:
1. Press [CD/DISC SKIP] button and [TUNER/BAND]
button simultaneously and hold 3 seconds.
2. All LEDs and segments in fl uorescent indicator tube are
lighted up.
3. When you want to enter to the software version display
mode, press [
appears on the fl uorescent indicator tube.
• “GPX 3S” is shown for MHC-GPX5.
• “GPX 4” is shown for MHC-GPX7.
• “GPX 7S” is shown for MHC-GPX8.
Press [
information.
4. During the destination information display, press [
/ ] button. Each time [
fl
software in the following sequence: SC, MTK (DMB Board
fi rmware version), UI, PF, SYS, CD, CDMA, CDMB,
ST, TA, TAS, TM and return back to model information
display.
5. When [OPTION] button is pressed while the version
numbers are being displayed except model and destination,
the date of the software creation appears. When [OPTION]
button is pressed again, the display returns to the software
version display.
6. Press [
7. In the key check mode, the fl uorescent indicator tube
displays “K 0 V0”.
Each time a button is pressed, “K” value increases.
However, once a button has been pressed, it is no longer
taken into account.
“V” value increases in the manner of 0,1, 2, 3 ... if [MAS-
TER VOLUME] knob is turned clockwise, or it decreases
in the manner of 0, 9, 8,7 ... if [MASTER VOLUME] knob
is turned counterclockwise.
8. When [ENTER] button is pressed after all LEDs and
segments in fl uorescent indicator tube light up, alternate
segments in fl uorescent indicator tube and LEDs would
light up. If you press [ENTER] button again, another half
of alternate segments in fl uorescent indicator tube and
LEDs would light up. Pressing [ENTER] button again
would cause all segments in fl uorescent indicator tube and
LEDs light up.
9. To release from this mode, press three buttons in the same
manner as step 1, or disconnect the power cord.
+
uorescent indicator tube shows the version of each category
+
/ ] button.
+
/ ] button again to view the destination
/ ↓] button, the key check mode is activated.
The model information
/ ] button is pressed, the
+
+
[COMMON TEST MODE]
• This mode is used to check operations of the Amplifi er
section.
• Procedure:
• To enter Common Test Mode
1. Press [USB/USB SELECT] button and [BASS BAZUCA]
button simultaneously and hold for 3 seconds.
2. The function is changed to TV and the volume is changed
to VOLUME MIN.
• Check of Amplifi er
1. Press [MUSIC] button repeatedly until a message “GEQ
MAX” appears on the fl uorescent indicator tube. GEQ in-
creases to its maximum.
2. Press [MUSIC] button repeatedly until a message “GEQ
MIN” appears on the fl uorescent indicator tube. GEQ
decreases to its minimum.
3. Press [MUSIC] button repeatedly until a message “GEQ
FLAT” appears on the fl uorescent indicator tube. GEQ is
set to fl at.
4. When the [MASTER VOLUME] knob is turned clockwise
even slightly, the sound volume increases to its maximum
and a message “VOLUME MAX” appears on the fl uores-
cent indicator tube.
5. When the [MASTER VOLUME] knob is turned counterclockwise even slightly, the sound volume decreases to its
minimum and a message “VOLUME MIN” appears on the
fl uorescent indicator tube.
• To release from Common Test mode
1. To release from this mode, press [
2. The cold reset is enforced at the same time.
I/1 STANDBY] button.
[USER RESET]
• The user reset clears all data including preset data stored
in the data fl ash to initial conditions exclude history mode
data
• Procedure:
1. Press [
2.
ously for 3 seconds.
3.“RESET” appears on the fl uorescent indicator tube.
After that, the fl uorescent indicator tube becomes blank
for a while, and the system is reset.
I/1 STANDBY] button to turn on the system.
Press [x] button and [
I/1 STANDBY
] button simultane
[COLD RESET]
• The cold reset clears all data including preset data stored in
the data fl ash to initial conditions. Execute this mode when
returning the set to the customer.
• Procedure:
1. Press [
2. Press [ENTER] button and [GAME] button
simultaneously for 3 seconds.
3. “COLD RESET” appears on the fl uorescent
indicator tube. After that, the fl uorescent indicator
tube becomes blank for a while, and the system is
reset.
I/1 STANDBY] button to turn on the system.
[TUNER STEP CHANGE]
• The step interval of AM channels can be toggled between
9 kHz and 10 kHz. This mode is not available for Saudi
Arabian, European and Russian models.
• Procedure:
1. Press [
2. Press [TUNER/BAND] button repeatedly to select
the “AM”.
3. Press [
4. Press [LED EFFECT] button and [
button simultaneously. The system turns on
automatically. The message “AM 9K STEP”
or “AM 10K STEP” appears on the fl uorescent
indicator tube and thus the channel step is changed.
I/1 STANDBY] button to turn on the system.
I/1 STANDBY] button to turn off the system.
I/1 STANDBY]
[CD SHIP MODE (WITH MEMORY CLEAR)]
• This mode moves the optical pick-up to the position
durable to vibration and clears all data including preset
data stored in the EEPROM to initial conditions during the
next AC-In. Use this mode when returning the set to the
customer after repair.
• Procedure:
1. Press [
2. Select CD function.
3. Press [ENTER] button and [MUSIC] button
4. A message
“MECHA LOCK” is displayed on the fl uorescent
I/1 STANDBY] button to turn on the system.
simultaneously for 3 seconds. The system turns off
automatically.
indicator tube and the CD ship mode is set.
19
HCD-GPX5G/GPX7G/GPX8G
[CD SHIP MODE (WITHOUT MEMORY CLEAR)]
• This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to
the customer after repair.
• Procedure:
1. Press [
I/1 STANDBY] button to turn on the system.
2. Select CD function.
3. Press [BASS BAZUCA] button and [
I/1 STANDBY]
button simultaneously. The system turns off
automatically.
4. A message
“MECHA LOCK” is displayed on the fl uorescent
indicator tube and the CD ship mode is set.
[CD TRAY LOCK MODE]
• This mode let you lock the disc tray. When this mode is activated, the disc tray will not open when [
OPEN/CLOSE]
Z
button or [EX-CHANGE] button is pressed. The message
“LOCKED” will be displayed on the fl uorescent indicator
tube. This mode only applied when there is disc(s) on the
tray.
• Procedure:
1. Press [
I/1 STANDBY] button to turn on the system.
2. Select CD function.
3. Press [
] button and [ENTER] button simultane-
x
ously and hold down until “LOCKED” or “UNLOCKED” displayed on the fl uorescent indicator
tube (around 5 seconds).
[FACTORY PRESET]
• This mode is use to load all the factory use preset frequencies into FM 1-FM 20 and AM 1-AM 10. Originally, frequency of FM 1-FM 20 and AM 1-AM10 are set to the
minimum frequency.
• Procedure:
1. Press [
I/1 STANDBY] button to turn on the system.
2. Press [CD/DISC SKIP] button and [AUDIO IN]
button simultaneously and hold for 3 seconds,
message “FACTORY” appears on the fl uorescent
indicator tube. The function is changed to TUNER
automatically.
[CDM AGING MODE]
• This mode is used to display the total count of meter
pointer touch initial switch and max switch.
• Procedure:
1. Press [
2. Select CD function and All DISC play mode.
3. Put discs on all trays and close the tray.
4. Press [
5. The fl uorescent indicator tube displays Aging
“xxxx” represents the error counter
(Maximum Value of “xxxx” = 9999)
“yyyyy” represents the cycle counter
(Maximum Value of “yyyy” = 9999)
6. Press [<<] or [>>] to search for Aging History
The fl uorescent indicator tube displays
“Mx E1E2E3E4”.
x: error history number
E1: Loading sequence JCP high
E2: Loading sequence JCP low
E3: Loading operation JCP
E4: Cam position operation JCP
I/1 STANDBY] button to turn on the system.
/ ] button and [x] button simultane-
+
ously for 3 seconds.
Display “AG xxxx/yyyy”.
Error Display.
7. Press [ENTER] to Aging Display
• To release from Meter Aging Mode.
To release from this mode, press [
I/1 STANDBY] button or
perform COLD RESET operation.
[HISTORY MODE]
• This mode is used to check important data stored in the
system when PROTECTOR happen.
• Procedure:
1. During demo mode, press [
u] button and [BASS
BAZUCA] for 5 seconds to mode in to history
mode.
2. Press the [TUNING +] or [TUNING -] button to
check history data stored
Item Display
Protector Count P R O C O U N T
Protector Type P R O T Y P E
Single Power On Time T 1 H M
Total Power On Time T 2
Input Function F U N C
Volume V O L
Actual Attenuation A T T
Low EQ Level E Q L O W
Mid EQ Level E Q M I D
High EQ Level E Q H I G H
VACS Level V A C S
AP VACS Level A P V A C S
Subwoofer Setting S W
Surround Setting S U R R
DJ Effect Setting D J
Bass Bazuca Setting B A Z U C A
H M
• To release from History Mode.
To release from this mode, press [
I/1 STANDBY] button.
[PROTECT KIND CHECK TEST MODE]
• This mode is used to check types of protect occurred during
protector on.
• Procedure:
3. During protection on, fl uorescent indicator tube
shows blinking message “PROTECT EXX”.
“EXX” – represent the error code.
4. Press [
u] button & [
5. Fluorescent indicator tube display will toggle
between “PROTECT” message & protector kind
message display.
Bellow table explains on protector kind.
Error Code Protector Message Description
E01 "AMP OCP"
E02 "MTK POWER" No power supply to DMB mount
E03 "POWER SUPPLY" Defect of power supply circuit to AMP
E04 "AMPLIFIER" Defect of AMP circuit
E06 "FAN BLOCK"
• To release from this mode.
Press [
u] button & [
x
unplug & re-plug in the power cord.
] button simultaneously.
x
The over current condition to MOSFET occurs by defect of MOSFET or
defect of PS output line.
Defect of DC FAN and DC FAN
driver circuit
] button simultaneously again or
20
1. Defect of AMP circuit
1-1. If PROTECT mode is “AMPLIFIER”,
The following defect might be possible.
Defects Possible cause
OTP (Over Tempera-
ture Protection)
DC Detection
Unusual output of
Power mount
1-2. If speaker does not have output even if the set status is not
in PROTECT mode
The following defect might be possible.
Defects Possible cause
Under Voltage IC1402 output is below 12V.
RESET defect Reset signal status from micom is not ‘H’.
2. Defect of power supply circuit to AMP
2-1. If the PROTECT mode is “POWER SUPPLY”,
There is possibility of unusual power supply of any of the
AMP IC or Pre-amplifi er.
• To release from this mode.
Press [
again or unplug and re-plug in the power cord.
Unusual heat up of MOSFET by improper assembly of heatsink, destruction
of MOSFET etc..
DC appears in SP terminal by defect of
AMP IC and MOSFET or output is shortcircuit.
The power mount has unusual output.
u] button and [
] button simultaneously
x
HCD-GPX5G/GPX7G/GPX8G
21
HCD-GPX5G/GPX7G/GPX8G
SECTION 4
ELECTRICAL CHECK
CD SECTION
Note:
1. CD Block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specifi ed value with the following checks.
5. Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
oscilloscope
(DC range)
DMB22 board
CN507 pin 6 (RFMON)
CN507 pin 3 (GND)
+
–
Procedure :
1. Connect the oscilloscope to CN507 pin 6 (RFMON) and
CN507 pin 3 (GND) on the DMB22 board.
2. Press the [
STANDBY] button to turn the power on, and
?/1
press the [CD/DISC SKIP] button to select CD function.
3. Set disc (YEDS-18) and press the [u] button to playback.
4. Confi rm that oscilloscope waveform is as shown in the fi gure
below (eye pattern).
A good eye pattern means that the diamond shape () in the
center of the waveform can be clearly distinguished.
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level:
1.05 ± 0.45 Vp-p
TUNER SECTION
0 dB = 1 μV
FM AUTO STOP CHECK
signal
generator
set
+
75
–
Procedure:
1. Turn the power on.
2. Input the following signal from Signal Generator to FM antenna input directly.
Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation : 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)
Note: Please use 75 ohm “coaxial cable” to connect SG and the
set. You cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
3. Set to FM tuner function and scan the input FM signal with
automatic scanning.
4. Confi rm that input Frequency of A, B and C detected and auto-
matic scanning stops.
The stop of automatic scanning means “The station signal is received in good condition”.
Checking Location:
-DMB22 Board (SideA)-
pin 6
(RFMON)
pin 3
(GND)
IC504
IC501
CN507
22
5-1. BLOCK DIAGRAM – CD/USB Section –
HCD-GPX5G/GPX7G/GPX8G
SECTION 5
DIAGRAMS
DEVICE, OPTICAL
(CMS-S76RFS3G)
VR (780)
RF
VOA/A
VOB/B
VOC/C
VOD/D
VC
MSW
FCS+
FCS–
TRK+
TRK–
SL+ 10
SL– 11
SP+ 12
SP– 13
AUTOMATIC POWER
CONTROL
Q606
AUTOMATIC POWER
CONTROL
Q605
CD ON
SWITCH
Q604-1
CD ON
SWITCH
Q604-2
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
6
VO1+
VO1-
7
9
VO2-
8
VO2+
VO3+
VO3-
VO4+
VO4-
Q603
REGO1
IC801
IN1
IN2
IN3
IN4
REGO2
24
23
22
21
RF IP123
OPOUT124
RF_C1
128
RF_B
127
RF_A
RF_D2
RF_F4VOE/E+G
RF_E3VOF/F+H
10
V2O
MDI113PD
LDO114LD (780)
LDO215LD (650)
RF AMP, SERVO DSP,
AUDIO PROCESSOR
MSW20VR (650)
FOO22
TRO21
FMO18
DMO17
IC501
ASDATA0
ADIN
ACLK
ALRCK
ABCK
USB_DP 25
USB_DM 24
SF_CK
SF_CS#
SF_DI
SF_DO
IFSDI 40
IFSDO 35
IFSCK 34
IFCS# 42
IFBSY 41
MULTIPLEXER
IC741
1C0
FLASH ROM
IC502
SCK
6
CS_
1
SI
5
SO
2
6
1C1
5
118
106
112
117
113
33
30
32
31
DG0, DQ1 – DQ15
2, 4, 5, 7, 8, 10, 11, 13, 42,
44, 45, 47, 48, 50, 51, 53
1Y
7
A
14
64M SDRAM
IC504
A0 – A11
23 – 26,
29 – 34, 22, 35
ASYNCHRONOUS SAMPLE
RATE CONVERTER
IC761
SDIN
4
2
RCKI
A/D CONVERTER
IC721
9
DOUT
6
SCKI
7
LRCK
8
BCK
USBUP_DP
31
USBUP_DM
30
USB CONTROLLER
IC700
VBUS_DET27
RESET_N26
XTAL1/
CLKIN
33
24MHz
20
21
38
15
39
X700
SDOUT
BCKO
LRCKO
/RST
VINL
VINR
XTAL2
32
18
17
23
25
24
13
13
L-IN
(Page 24)
14
R-CH
2USBDN1_DP
1USBDN1_DM
4USBDN2_DP
3USBDN2_DM
83
82
25
35
36
37
41
38
16
DSP
IC762
SDIN1
11
22
SCLKOUT1
LRCK
19
21
MCLKO
32 15 16
B
27 47 48
HUB-RESET
HUB-VBUS-DETECT
ASEL
MTK-OSD
MTK-SI
MTK-CLK
MTK-XIFCS
MTK-BUSY
SYSTEM
CONTROLLER
IC500 (1/4)
SDOUT1
SCLKOUT2
SDA1
/RESET
DSP-DATA
DSP-RESET
HUB-OC1
27
23
SCL1
DSP-CLK
84
28HUB-OC2
1
COMPARATOR
7
D/A CONVERTER
IC763
DATA
2
BCK
1
LRCK
3
SCK
16
USB
IC702
VOUT L
VOUT L
3
5
VBUS
VBUS
R-CH
D+
D–
D+
D–
CN1201
3
2
1
CN1202
3
2
1
L-OUT
VBUS +5V
A
PLAY
REC/PLAY
(Page 24)
A
B
7
8
REGO1
HCD-GPX5G/GPX7G/GPX8G
REGO2
29
39
2
OPIN-
REGVAR
REG5
VSPDL
MUTE123
MUTE4
TSDM
2335
SPFG/OPINN12627
MUTE1234533
MUTE41934
TSD_M
7
XTALI
X501
27MHz
52 – 55, 57 – 60,
69 - 62
RD0 – RD15
XTALO
8
90 - 92, 79 - 74,
88, 73
RA0 – RA11
85
86
72
61
70
83
82
80
BA0 BA0
BA1 BA1
RCLK CLK
DQM0 LDQM
DQM1 UDQM
RAS# RAS
CAS# CAS
PRST #
RWE# WE
38
MTK-RST40
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: CD PLAY
: AUDIO
: USB
2323
HCD-GPX5G/GPX7G/GPX8G
5-2. BLOCK DIAGRAM – MAIN Section –
(Page 23)
PC/
GAME
DVD/
SAT
TV
MIC IN
ANTENNA
FM/AM
J500
J1300
CN103
A
AUDIO IN
L
R
R-CH
R-CH
R-CH
L-OUT
X101
32.768kHz
4
7
6
18
19
TUNER (FM/AM)
FRF1
FRF2
ARF1
X1
X2
GPX7G/GPX8G
MIC LEVEL
MIN MAX
IC101
RV1300
LOUT
ROUT
DA
CK
RDSI
OP AMP
IC901
MIC AMP
IC1301
13
1375
MIC DRIVE
Q1302,Q1301
R-CH
14
13
10
8
39 GAME_L
43
GAME-LEFT
45
DVD LEFT
40
TV LEFT
46
MIC
42
ST-L15
21
DATA22CLK
INPUT SELECTOR,
ELECTRICAL VOLUME
IC806
INGAIN OUT L
INGAIN OUT R
OUTL
BB1L
BB2L
OUTR
BB1R
BB2R
AGCOUTL
AGCOUTR
SWOUT
OUTL
BASS AGC
SW OUT L
L-IN
B
C
E
D
(Page 23)
(Page 25)
(Page 25)
(Page 25)
38
5
R-CH
26
28
27
19
R-CH
18
17
25
20
R-CH
23
BASS AGC
Q900
BASS AGC
Q950
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: AUDIO
: TUNER (FM/AM)
: MIC
M751
(LOADING)
M
M741
M
(TABLE)
ROTARY ENCORDER
(DISK TRAY ADDRESS DETECT)
(OPEN/CLOSE DETECT)
TABLE ADDRESS SENSOR
RE701
S751
IC731
GPX7G
HIGH SPAKER (L,R)
(BLUE)
GPX8G
FRONT SPAKER (L,R)
(R,G,B)
SUBWOOFER (L,R)
(R,G,B)
GPX7G
LOW SPAKER (L,R)
(BLUE)
D1800
(RED)
D1801
D001
D001
D1800
(RED)
D1801
ST-RDS
18
77
78
ST-CLK
ST-DATA
MIC DETECT
86
AUDIO DATA
87
AUDIO CLK
SYSTEM CONTROLLER
IC500 (2/4)
FR-SPK-LED-RED
FR-SPK-LED-BLUE
FR-SPK-LED-GREEN
SW-SPK-LED-GREEN
SW-SPK-LED-RED
SW-SPK-LED-BLUE
GPX7G/GPX8G
3
4
22
24
28
30
15X-IN
13X-OUT
10XC-IN
11XC-OUT
X701
8MHz
X702
32.768kHz
LED
DRIVER
Q704
LED
DRIVER
Q707
LED
DRIVER
Q709
75
IC701
IC712
ADDRESS SENSOR
SWITCH
Q731
FIN
RIN
FIN
RIN
7
9
7
9
3
OUT2
2
4
2
4
OUT1
OUT2
OUT1
LD MOTOR DRIVER
TBL MOTOR DRIVER
52
44
43
46
45
49
50
51
53
TBL-SENS
LM-F
LM-R
TM-F
TM-R
E-1
E-2
E-3
OPEN SW
HCD-GPX5G/GPX7G/GPX8G
2424
5-3. BLOCK DIAGRAM – AMP Section –
GPX8G
SW BPF-L
IC900
D
(Page 24)
C
(Page 24)
SW OUT L
R-CH
OUTL
R-CH
5
INPUT+
SW BPF-R
IC950
5
INPUT+
OUTPUT
OUTPUT
1
1
MUTE
SWITCH
Q954
MUTE
SWITCH
Q902
2
PREAMP
IC1403
5
INB+ BOUT
2
PREAMP
IC1404
5
INB+ BOUT
HCD-GPX5G/GPX7G/GPX8G
GPX8G
POWER AMP
IC1406
TH1400
TH1401
TH1402
TH1403
BOOSTER
Q1422
BOOSTER
Q1423
BOOSTER
Q1418
BOOSTER
Q1419
BOOSTER
Q1420
BOOSTER
Q1421
BOOSTER
Q1424
BOOSTER
Q1425
D1417 D1419
PROTECTION
Q1443,1454
PROTECTION
Q1444,1455
PROTECTION
Q1445,1456
PROTECTION
Q1446,1457
HO
14
1
AOUTINA-
CLOCK
IC1410
75
BOUT
AOUT
INA+ INB+
13
7
1
AOUTINA-
CLOCK
IC1411
75
BOUT
AOUT
INA+ INB+
13
7
CEC DATA SWITCH
Q1412
CEC DATA SWITCH
Q1413
CEC DATA SWITCH
Q1411
CEC DATA SWITCH
Q1410
RESET
SWITCH
Q1414
RESET
SWITCH
Q1415
RESET
SWITCH
Q1416
RESET
SWITCH
Q1417
3
5
3
5
3
5
3
5
IN
CSD
POWER AMP
IN
CSD
POWER AMP
IC1408
IN
CSD
POWER AMP
IC1409
IN
CSD
IC1407
LO
11
HO
14
LO
11
HO
14
LO
11
HO
14
LO
11
GPX8G
TB1400
TB4002
TB4001
3
2
3
2
3
L
SUBWOOFER
,03('$1&(86(ȍ
R
L
FRONT SPEAKERS
,03('$1&(86(ȍ
R
L
GPX7G
TB1400
3
2
TB4002
3
2
L
SPEAKERS LOW
,03('$1&(86(ȍ
R
L
SPEAKERS HIGH
,03('$1&(86(ȍ
R
GPX5G
TB1403
TB4002
2
3
2
SUBWOOFER
,03('$1&(86(ȍ
L
FRONT SPEAKERS
,03('$1&(86(ȍ
R
SIGNAL PATH
: AUDIO
HCD-GPX5G/GPX7G/GPX8G
80
MUTE
DRIVE
Q802
SW-MUTE
81
FRONT-MUTE
26
DAMP-CLK
SWITCH
DRIVER
Q1474
70
COMPARATOR
IC1405
OTP DRIVE
Q1469, 1470
SWITCH
DRIVER
Q1407
OTW DRIVE/
SD-SLOW DRIVE
Q1405
G
(Page 26)
7471
SYSTEM CONTROLLER
DAMP-OCP
DAMP-RESET
IC500 (3/4)
/SD-SLOW
OUT IN
PROTECTION
Q1449
21
,03('$1&(86(ȍ
SATELLITE SPEAKERS
2
R
FAN MOTOR DRIVE
Q1439, Q1441,
Q1451, Q1453,
Q1458
FAN MOTOR LOCK
Q1447
DC FAN
E
(Page 24)
PROTECTION
Q1448
BASS AGC
D1403
D1435
FAN-DRIVE
FAN-LOCK
69
61
2525
HCD-GPX5G/GPX7G/GPX8G
5-4. BLOCK DIAGRAM – PANEL/POWER SUPPLY Section –
VACUUM
FLUORESCENT
DISPLAY
FL1001
GRIDS 1-16
SEGMENTS 1-24
GR15
GR16
D1018 - D1021
TOP ILLUMINATION)
(LEFT
D1006 - D1009
(RIGHT TOP ILLUMINATION)
D1022 - D1024, D1026, D1027
(CENTER ILLUMINATION)
D1014 - D1017
(LEFT BOTTOM ILLUMINATION)
D1010 - D1013
(RIGHT BOTTOM ILLUMINATION)
D1223
(USB B)
D1224
(USB A)
D1221
(DJ EFFECT)
D1216, D1218
(BASS BAZOOKA)
BUFFER
Q1001
DJ CONTROL/
MASTER VOLUME
GR15
48
GR16
49
FLUORESCENT DISPLAY
DRIVER
IC1001
GR2
35 – 47
GR14
SG1/KS1
10 – 33
SG24/KS24
REMOTE CONTROL
RECEIVER
ENCODER
Q4, Q3
23,24
Q6, Q5
21, 22
Q1, Q2, Q10
1, 2, 17
Q9, Q8
18, 1911, 1 2
Q15, Q16
Q13
14
Q12
15
Q11
16
IC1003
S1250
ROTARY
LED DRIVE
CLK
DIN
STB
IC1002
Q7
DATA
/OE
LATCH
CLOCK
191
290
389
20
4
5
6
8
FL-CLK
FL-DATA
FL-CS
5 SIRCS
95
MASTER-VOLUME
LED-DATA
1
LED-DRIVER-OE
7
LED-LATCH
6
LED-CLK
2
SYSTEM CONTROLLER
IC500 (4/4)
MTK-POWER-CTL
PCONT
-PSAVE-PROTECT
(SUB ON)
VBUS-OE
/SD-FAST
+13V
LED +13.5V (SEL A)
LED +13.5V (SEL B)
VACUUM
FLUORESCENT
DISPLAY
M +9V
VM +9V
D +9V
+3.3V
TU +3.3V
AVDD +5V
DVDD +5V
AVDD +3.3V
RF +3.3V
43
VBUS +5V
25
D +3.3V
DVDD +3.3V
DVDD +1.8V
79
EVER +4V
68
+3.3V
REGULATOR
IC652
REGULATOR
IC103
+5V
REGULATOR
IC701
+1.8V
REGULATOR
IC651
+4V
REGULATOR
IC804
SWITCH
DRIVER
Q703
DINAMIC LED
DRIVING
Q1006 - Q1009
DC-DC CONVERTER
T1001
OSC
Q1004, Q1005
SWITCH
Q702
SWITCH
Q701
(Page 25)
A +9V
REGULATOR
IC803
G
SWITCH
Q716
SWITCH
Q715
M +9V
REGULATOR
IC802
SWITCH
Q806, Q807
VBUS +5V
REGULATOR
IC800
D +3.3V
REGULATOR
IC801
RESET
Q1475
SEL A :
DISPLAY BOARD
D1008, D1009, D1012, D1013, D1016, D1017,
D1018, D1019, D1022, D1023, D1027
USB BOARD
D1218, D1224
SEL B:
DISPLAY BOARD
D1006, D1007, D1010, D1011, D1014, D1015,
D1020, D1021, D1024, D1026
USB BOARD
D1216, D1221, D1223
+53V
+18V
+5.0 V
-18V
-5.0V
-53V
-40V
AMP RESET
Q1402, Q1460
-40V
REGULATOR
IC1402
REGULATOR
REGULATOR
SWITCHING
Q1401
+18V
IC1414
+5.0V REG
Q1477
-18V
IC1415
-5.0V REG
Q1478
REGURATOR
Q1400
REGULATOR,
SWITCHING
+VH
+VL
+13V
-VL
-VH
HCD-GPX5G/GPX7G/GPX8G
S1001 - S1005,
S1180 - S1184
S1006 - S1010,
S1210 - S1218
AC-CUT
19
RESET
12
67
AD-KEY0
92
AD-KEY1
PCONT-DAMP (MAIN ON)
PCONT-7V-13.5V (PCONT SUB)
65
63
μCOM RESET
Q506
μCOM RESET
IC508
BUFFER
Q507
AC-DET
(AC IN)
MAIN ON
SUB ON
2626
HCD-GPX5G/GPX7G/GPX8G
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
• : Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
• Abbreviation
E4 : African model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian models
MX : Mexican model
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : Panel designation.
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.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM)
* : Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M).
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
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F : AUDIO
f : TUNER (FM/AM)
N : MIC
J : CD PLAY
E : USB
• Abbreviation
E4 : African model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian models
MX : Mexican model
• Circuit Boards Location
4CH DAMP board
TUNER1AM3R board
MAIN board
REGULATOR, SWITCHING board
SWITCH board
DMB22 board
MOTOR (LD) board
SENSOR board
HCD-GPX5G/GPX7G/GPX8G
DISPLAY board
MOTOR (TB) board
DRIVER board
VOLUME board
USB board
MIC board (for GPX7G/GPX8G)
2727
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