SONY HCD-XGV80 Service Manual
HCD-XGV80
SERVICE MANUAL
Ver 1.0 2003.05
• HCD-XGV80 is the Amplifier,
CD player, tape deck and tuner
section in LBT-XGV80.
Model Name Using Similar Mechanism
CD CD Mechanism Type CDM37B-30BD62
Section Base Unit Name BU-30BD62
Optical Pick-up Name A-MAX.3
TAPE Model Name Using Similar Mechanism NEW
Section Tape Mechanism Type CWM43RR23
E Model
HCD-XGV6/XGV8/XGV10AV
SPECIFICATIONS
Amplifier section
Mexican models:
The following measured at AC 127 V, 60 Hz
DIN power output (rated): 145x 2 + 145x 2 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
180x 2 + 180x 2 watts
(6 ohms at 1 kHz, 10% THD)
Other models:
The following measured at AC 120, 220, 230 – 240 V, 50/60 Hz
DIN power output (rated): 145x 2 + 145x 2 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
180x 2 + 180x 2 watts
(6 ohms at 1 kHz, 10% THD)
Inputs
PHONO IN (phono jacks): sensitivity 3 mV, impedance 47 kilohms
MIC-1/MIC-2 (phone jacks): sensitivity 1 mV, impedance 10 kilohms
GAME INPUT AUDIO L/R (phono jacks):
sensitivity 250 mV,impedance 47 kilohms
GAME INPUT VIDEO (phono jack): 1Vp-p, 75 ohms
MD (VIDEO) IN L/R (phono jacks):
sensitivity 450 mV (250 mV),
impedance 47 kilohms
Outputs
PHONES (stereo phone jack): accepts headphones of 8 ohms or more
MD (VIDEO) OUT L/R (phono jacks):
voltage 250 mV, impedance 1 kilohms
VIDEO OUT (phono jack): max. output level 1Vp-p,
load impedance 75 ohms
FRONT SPEAKER: accepts impedance of 6 to 16 ohms
(SUPER WOOFER)
accepts impedance of 6 to 16 ohms
(TWEETER & WOOFER)
VIDEO CD/CD player section
System Compact disc digital audio system
Laser Semiconductor laser (λ=795 nm)
Emission duration: continuous
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
Video color system format NTSC, PAL
— Continued on next page —
9-877-433-01
2003E02-1
© 2003.05
COMPONENT Hi-Fi STEREO SYSTEM
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
HCD-XGV80
Tape deck section
Recording system 4-track 2-channel, stereo
Frequency response 50 – 13,000 Hz (±3 dB),
using Sony TYPE I cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0 MHz (50 kHz step)
Antenna FM lead antenna
Antenna terminals 75 ohms unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range 530 – 1,710 kHz
(with the tuning interval set at 10 kHz)
531 – 1,602 kHz
(with the tuning interval set at 9 kHz)
Antenna AM loop antenna
Antenna terminals External antenna terminal
Intermediate frequency 450 kHz
General
Power requirements
Mexican models: 120 V or 127 V AC, 60 Hz
Other models: 120 V, 220 V or 230 – 240 V AC, 50/60 Hz
Adjustable with voltage selector
Power consumption 330 watts
Dimensions (w/h/d) (Main Unit)
Approx. 355 x 425 x 451 mm
Mass (Main Unit) Approx. 17.0 kg
Design and specifications are subject to change without notice.
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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT 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
HCD-XGV80
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 flexible 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 reflective 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.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
• MODEL IDENTIFICATION
– Rear Panel –
PART No.
MODEL
SP model
MX model
E51 model
• Abbreviation
MX : Mexican
E51 : Chilean and Peruvian
SP : Singapole
PARTS No.
4-244-968-0s
4-244-968-4s
4-244-968-5s
TABLE OF CONTENTS
1. SERVICING NOTE
·························································· 4
2. GENERAL ·········································································· 5
3. DISASSEMBLY ································································ 7
4. TEST MODE ···································································· 16
5. MECHANICAL ADJUSTMENTS ····························· 18
6. ELECTRICAL ADJUSTMENTS ······························· 18
7. DIAGRAMS
7-1. Circuit Board Location ······················································ 22
7-2. Block Diagram – CD Servo Section – ······························· 24
Block Diagram – Tuner/Tape Deck Section – ··················· 25
Block Diagram – Main Section – ······································ 26
Block Diagram
– Display/Key Control/Power Supply Section – ·········· 27
7-3. Printed Wiring Board – BD Section – ······························· 28
7-4. Schematic Diagram – BD Section – ·································· 29
7-5. Printed Wiring Board – Video Section – ··························· 30
7-6. Schematic Diagram – Video Section – ······························ 31
7-7. Printed Wiring Board – Motor LED Section – ·················· 32
7-8. Schematic Diagram –Motor LED Section – ······················ 32
7-9. Schematic Diagram – Main (1/4) Section – ······················ 33
7-10. Schematic Diagram – Main (2/4) Section – ······················ 34
7-11. Schematic Diagram – Main (3/4) Section – ······················ 35
7-12. Schematic Diagram – Main (4/4) Section – ······················ 36
7-13.Printed Wiring Board – Main Section – ····························· 37
7-14. Printed Wiring Board – CD-L, CD-R Section – ················ 38
7-15. Schematic Diagram – CD-L, CD-R Section – ··················· 39
7-16. Printed Wiring Board – TC-A, TC-B Section – ················ 40
7-17. Schematic Diagram – TC-A, TC-B Section – ··················· 41
7-18.Printed Wiring Board – Panel VR, Key Section – ············· 42
7-19. Schematic Diagram – Panel VR, Key Section –················ 43
7-20.Printed Wiring Board – Panel FL Section – ······················· 44
7-21. Schematic Diagram – Panel FL Section – ························· 45
7-22. Printed Wiring Board – Power Amp Section – ·················· 46
7-23. Schematic Diagram – Power Amp Section – ····················· 47
7-24. Printed Wiring Board – Sub Amp Section – ····················· 48
7-25. Schematic Diagram – Sub Amp Section – ························· 49
7-26. Printed Wiring Board – Mic Section – ······························ 50
7-27. Schematic Diagram – Mic Section – ································· 50
7-28. Printed Wiring Board – Power Supply Section –·············· 51
7-29. Schematic Diagram – Power Supply Section – ················· 51
7-30. IC Pin Function Description ············································· 52
7-31. IC Block Diagram ····························································· 58
8. EXPLODED VIEWS
8-1. Case,Back Panel Section ··················································· 61
8-2. Front Panel Section-1 ························································ 62
8-3. Front Panel Section-2 ························································ 63
8-4. Chassis Section ·································································· 64
8-5. CD Mechanism Deck Section (CDM-30BD62) ················ 65
8-6. Base Unit Section (BU-30BD62) ······································ 66
9. ELECTRICAL PARTS LIST ······································· 67
3
HCD-XGV80
SECTION 1
SERVICING NOTE
SERVICE POSITION FOR BD BOARD AND OPTICAL PICK-UP BLOCK
BD board
3
Bottom plate
1
2
4
BU fitting screw
Tw o screws (+BVTP 3 x 8)
5
Optical pick-up block
4
Main unit
ALBUM +/– qh
CD SYNC qf
Deck A ws
Deck B w;
Direct equalizer ef
SALSA/REGGAE/TANGO/
MOVIE/GAME/SAMBA/
ROCK/JAZZ/DANCE/POP
DIRECTION wk
DISC 1 – 5 ek
DISC SKIP ek
Disc tray wd
DISPLAY 2
Display window 7
ECHO LEVEL wj
EDIT wf
EFFECT ej
ENTER eg
FM MODE qs
FUNCTION qa
GAME ea
GAME INPUT AUDIO L/R
jacks qk
GAME INPUT VIDEO jack qk
GAME MIXING
e;
ILLUMINATION 4
KARAOKE/MPX
ed
MD (VIDEO) ea
MEMORY qs
MIC-1/MIC-2 jacks
wg
MIC LEVEL wh
P FILE eh
PHONES jack qg
PHONO e;
PLAY MODE wf
Power illuminator 5
PUSH OPEN wd
Remote sensor 3
REPEAT wf
ALPHABETICAL ORDER
A – D E – J K – R
qkqlwa w;wswd
e;
ea
wf
wg
wh
wj
wl
wk
qd
qf
qg
23 745 8690qa1
elek
ed ef eg ehejes
qs
qh
qj
SLEEP 9
SPECTRUM ANALYZER 4
SURROUND es
SURROUND ed
TIMER SELECT 8
TUNER ENTER qs
TUNER/BAND qs
TUNING MODE qs
TUNING +/– qs
VOLUME control 6
X-GROOVE ql
S – Z
?/1 (power) 1
c
/CLOCK SET 0
X (pause) qd
h/H (play) qd wl
x (stop) qd wl
.m/M> (rewind/fast
forward) qd wl
z REC qf
./> (go back/go forward)
qj
M/m/</, (cursor) eg
m/M (rewind/fast forward)
el
NX (play/pause) el
x (stop) el
A EJECT Z/Z B EJECT (eject)
w;
BUTTON DESCRIPTIONS
SECTION 2
GENERAL
HCD-XGV80
This section is extracted from
instruction manual.
5
HCD-XGV80
Remote control
This section is extracted from
instruction manual.
ALPHABETICAL ORDER
A – N O – Z
ALBUM +/– qj
CLEAR wa
CLOCK/TIMER SELECT es
CLOCK/TIMER SET ed
DISC SKIP e;
DISPLAY ea
EFFECT 8
ENTER 0
FILE SELECT +/– 6
FUNCTION +/– wl
NEXT wj
Number buttons ws
ON SCREEN w;
PLAY MODE qh
PRESET +/– wj
PREV wj
REPEAT qg
SELECT wk
SLEEP qk
SPECIAL MENU 5
SURROUND qa
TUNER/BAND qd
TUNING +/– wg
TV CH +/– 3
TV/VIDEO 4
TV VOL +/– 2
VOL +/– 9
BUTTON DESCRIPTIONS
?/1 (power) 1
M/m/</, (cursor) 0
X (pause) wd
x (stop) wf
m/M (rewind/fast forward)
./> (go back/go forward)
CD N (play) wk
KEY CONTROL
RETURN O qf
TAPE A nN (play) qs
TAPE B nN (play) 7
TV ?/1 ql
#/2 wh
wg
wj
qk
qj
qh
qg
qf
qd
qs
qa
q;
ed
1
2
3
es
ea
e;
ql
w;
wa
4
5
6
7
wl
wk
wj
8
V
bB
v
9
V
bB
v
ws
wd
wf
wg
wh
6
SECTION 3
)
DISASSEMBLY
• The equipment can be removed using the following procedure.
Set Case Front panel section Tape mechanism deck
PANEL FL board, GAME board, TC-A board,
TUNER board, TC-B board
KEY board
PANEL VR board
HEADPHONE board, MIC VR board, MIC board, ALBUM board
FRONT INPUT board
CD-L board, DOOR SW board, CD-R board
Back panel, DC fan, MAIN board
VIDEO board
CD mechanism deck (CDM37B-30BD62)
HCD-XGV80
Base unit-1 (BU-30BD62)
Disc table
Note : Follow the disassembly procedure in the numerical order given.
Base unit-2 (BU-30BD62) BD board
3-1. CASE
8
Case
7
1
Three screws (CASE3 TP2)
5
3
Five screws (BVTT 3x6)
4
Tw o screws (BVTP 3x8
6
6
5
2
Three screws (CASE3 TP2)
7
HCD-XGV80
)
3-2. FRONT PANEL SECTION
8
Screw (BVTP 3x8)
9
3
Connector (CN311)
Lugs
4
Connector (CN903)
5
Connector (CN722)
1
Flat type wire (CN371
2
Flat type wire (CN431)
6
Connector (CN801)
0
Screw (BVTP 3x8)
qh
Front panel section
3-3. TAPE MECHANISM DECK
qs
Connector (B deck)
qf
Four screws (BVTP 3x8)
1
Flat type wire (13 core)
4
qd
Screw (BVTP 3x8)
qg
Claw
qa
Lug
7
Connector (CN806)
2
Two screws (BVTP 2.6x8)
3
Two screws (BVTP 2.6x8)
5
Tape mechanism deck
Front panel
8
3-4. PANEL FL BOARD, GAME BOARD, TC-A BOARD, TUNER BOARD, TC-B BOARD
)
)
Five screws (BVTP 2.6x8)
qa
7
(CN601)
qf
2
Bracket (TA)
ql
Two claws
1
Screw (BVTP 2.6x8)
qh Two
w;
claws
GAME board
ws
TC-A board
qs
Four screws
(BVTP 2.6x8)
5
(CN700)
qk
board
qj
qd
Four screws
(BVTP 2.6x8)
Connector
wd
Three claws
PANEL FL
HCD-XGV80
Flat type wire
8
Screw (BVTP 2.6x8)
9
Bracket (MAIN)
0
Four screws (BVTP 2.6x8
Four screws (BVTP 2.6x8)
wf
TUNER board
qg
Four screws
(BVTP 2.6x8)
wa
Three claws
3-5. KEY BOARD
6
Three claws
Front panel
7
wg
Three claws
3
Screw (BVTP 2.6x8)
4
Bracket (TA)
wh
TC-B board
6
Connector (CN600)
1
Three screws (BVTP 2.6x8
2
OPERATION PANEL ASSY
8
KEY board
4
Cursor
5
Five screws (BVTP 2.6x8)
3
Flat type wire (CN801)
Front panel
9
HCD-XGV80
)
)
3-6. HEADPHONE BOARD, MIC VR BOARD, MIC BOARD, ALBUM BOARD
7
MIC VR board
5
Three screws (BVTP 2.6x8)
6
Knob (MIC)
2
3
HEADPHONE board
4
Connector (CN812)
8
1 S
crew (BVTP 2.6x8)
Bracket HP PWB
Two screws (BVTP 2.6x8)
0
MIC board
9 S
crew (BVTP 2.6x8
qa S
crew (BVTP 2.6x8)
3-7. PANEL VR BOARD
2
Nut (Supplied with S700)
Front panel
3
Flat type wire (CN601)
qs
6
ALBUM board
5
Six screws (BVTP 2.6x8)
4
7
Flat type wire (CN801
PANEL VR board
10
1
Volume knob
Front panel
)
)
3-8. FRONT INPUT BOARD
Front panel
FRONT INPUT board
J500
HCD-XGV80
1
Five screws (BVTP 2.6x8
2
Bumper ASSY
3-9. CD-L BOARD, DOOR SW BOARD, CD-R BOARD
3
Connector (CN700)
7
8
Sub panel CD ASSY
qf
DOOR SW
board
qd
Froating screw
(DIA.12)
5
Five claws
6
3
4
FRONT INPUT board
Front panel
4
1
Five screws (BVTP 2.6x8
Connector (CN600)
qs
CD-L board
0
BRACKET (S/P) (L)
9
Screw (BVTP 2.6x8)
qa
Four screws
(BVTP 2.6x8)
qj
Four screws (BVTP 2.6x8)
qk
qh
BRACKET (S/P) (R)
qg
Screw (BVTP 2.6x8)
CD-R board
2
Four screws (BVTP 2.6x8)
11
HCD-XGV80
)
3-10. VIDEO BOARD
2
7
VIDEO board
5
Connector (CN301)
1
Two screws
(BVTP 3 X 8)
3-11. BACK PANEL, DC FAN, MAIN BOARD
7
Back panel
qd
Connector (CN102)
qa
Flat type wire
(CN401)
4
Flat type wire
(CN201)
0
DC FAN
(M901)
6
3
6
Two screws
(BVTP 3 X 8)
1
Flat type wire (CN441)
2
Eight screws
(BVTP 3 X 8)
Flat type wire (CN101
3
Two screws
(BVTP 3 X 8)
9
Two screws
(BVTP 3 X 8)
5
Four screws
(BVTP 3 X 8)
4
Three screws
(BVTP 3 X 8)
qf
Connector
(CN721)
12
qs
Connector (CN441)
8
Connector (CN961)
qj
MAIN board
qg
Two screws
(BVTP 3 X 8)
qh
Two connectors
(CN901, 902)
3-12. CD MECHANISM DECK (CDM37B-30BD62)
1
Flat type wire
(CN401)
4
Three screws
(BVTP 3 X 8)
7
2
Connector
(CN411)
6
Two screws (BVTP 3 X 8)
8
7
3
Four screws (BVTP 3 X 8)
Wire holder
5
Two screws
(BVTP 3 X 8)
HCD-XGV80
qa
CD mechanism deck
(CDM37B-30BD62)
0
Five screws
(BVTP3 × 8)
9
Remove two cables from
wire holder.
13
HCD-XGV80
w
)
3-13. BASE UNIT-1 (BU-30BD62)
2
Boss
3
Base unit
(BU-30BD62)
1
BU fitting scre
3-14. BASE UNIT-2 (BU-30BD62)
1
Two floating screws (DIA.12)
4
Two coil springs
(insulator)
6
Base unit (BU-30BD62)
2
Two screws
(BVTP 2.6 X 8)
3
Two stoppers
(BU)
14
5
Two coil
springs
(insulator
Holder (BU30) assy
3-15. BD BOARD
e
4
BD board
BU-30BD62
3
Flat type wire (CN102)
HCD-XGV80
3-16. DISC TABLE
Note: When the disc table is installed, adjust the positions of roller cam
and mark B as shown in the figure, then set to the groove of disc
table.
Cam (holder)
A
Roller cam
1
Screw (BVTP 3
1
Remove the two solders.
2
Remove the two solders.
×
8)
3
Step screw
Chassis
2
Bracket (BU)
4
Disc tabl
A
15
HCD-XGV80
B
SECTION 4
TEST MODE
[MC Cold Reset]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. Turn the power ON or set to the DEMO mode.
2. Press three buttons of x (TC-B) , TUNER ENTER , and \/1
simultaneously.
3. The set is reset, and displays “COLD RESET”, then becomes
DEMO mode.
[Change-over the AM Tuning Interval]
• The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the \/1 button to turn the power ON.
2. Select the function “TUNER”, and press the TUNER/BAND
button to select the BAND “AM”.
3. Press the \/1 button to turn the power OFF.
4. Press the ENTER and \/1 buttons simultaneously,
and the display on the fluorescent indicator tube changes to
“AM 9 K STEP” or “AM 10 K STEP”, and thus the tuning
interval is changed over.
[CD Ship Mode] (No 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 the \/1 button to turn the power ON.
2. Press the EDIT and
3. A message “LOCK” is displayed on the fluorescent indicator
tube, and the CD delivery mode is set.
[LED and Fluorescent Indicator Tube All Lit, Key Check
Mode]
Procedure:
1. Press three buttons of x (TC-B) , TUNER ENTER ,and
DISC 2 simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
3. Press the DISC 1 button, the MODE and DESTINATION are
displayed fluorescent indicator tube.
4. Each time the DISC 1 button is pressed, the MC/GC category
version is displayed in the following order.
NR MC GC CD CDDM CDMA
5. Press the DISC 2 button, and the key check mode is acti-vated.
6. In the key check mode, the fluorescent indicator tube displays
“K 0 J0 V0”. Each time a button is pressed, “K” value in-creases
to “K69”call the button is pressed. However, once a button is
pressed, it is no longer taken into account.
“V” value increases like 1, 2, 3 ... if turn the VOLUME dial
clockwise (“+” direction), or it decreases like 0, 9, 8 ... if turn
the VOLUME dial counterclockwise (“–” direction).
7. To release from this mode, press three buttons in the same
manner as step 1, or disconnect the power cord.
buttons simultaneously.
\/1
BDABDBSTTATMTC
CDM
[Sled Servo Mode] (CD service mode)
• This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the pick-up.
Procedure:
1. Select the function “CD”.
2. Press three buttons x (TC-B) , TUNER ENTER , and
DISC 5 simultaneously.
3. The Sled Servo mode is selected, if “CD” is blanking on the
fluorescent indicator tube.
4. With the CD in stop status, press M button in CD section to
move the pick-up to outside track, or m button to inside track.
5. To exit from this mode, press
OFF.
Note:
• Always move the pick-up to most inside track when exiting from
this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can
be chipped.
[Change-over of FUNCTION Name]
• The FUNCTION name of external input terminal can be changed
over to VIDEO or MD. With the FUNCTION selected to “MD”,
about 5dB mute is applied to the input gain.
Procedure:
1. Press \/1 button to turn the power OFF.
2. Press
several seconds, and the power is turned on, the display of
fluorescent indicator tube changes to “MD” or “VIDEO”
instantaneously, and thus the FUNCTION is changed over.
[Aging Mode]
This mode can be used for operation check of tape deck section.
Tape deck section work in parallel.
• If an error occurred:
The aging operation stops and display then status.
• If no error occurs:
The aging operation continues repeatedly.
Procedure:
1. Load the tapes into the decks A and B respectively.
2. Press the FUNCTION button to select the function “CD”.
3. Press the PLAY MODE button to set the “ALL DISCS” mode,
and press the REPEAT button to “REPEAT” off.
4. Press three buttons of x (TC-B) , TUNER ENTER ,and
DISC 4 simultaneously.
5. The aging mode is activated, if the indicator of disc tray number on the fluorescent indicator tube is blinking.
6. To release from the aging mode, press the \/1 button to turn
the power OFF and operate the cold reset. (Refer to the “MC
Cold Reset”)
1. Display at the Aging Mode
• Display operating state of tape deck section alternately.
• If an error occurred, stop display.
[Changeover the color system]
The color system can be changed over PAL, NTSC or AUTO.
Procedure:
The color system can be changed over PAL, NTSC or AUTO by
pressing \/1 button while pressing followings and indication on
display changes to “COLOR PAL”, “COLOR NTSC” or “COLOR
AUTO”.
button together with FUNCTION button for
\/1
button turn to the power
\/1
16
PA L: REGGAE + \/1
NTSC : MOVIE + \/1
AUTO : TANGO + \/1
HCD-XGV80
2. Tape Deck Section
• The sequence during the aging mode is following as below.
• If an error occurred, stop display that step.
Aging mode sequence (Tape deck section):
Rewind the tape A
“TAPE A AG-1”
Shut off
FWD the tape A
“TAPE A AG-2”
2 minutes
Fast forward the tape A
“TAPE A AG-3”
Shut off or 20 seconds
RVS the tape A
“TAPE A AG-4”
2 minutes
Rewind the tape A
“TAPE A AG-5”
Shut off
3. CD Section
• The sequence during the aging mode is following as below.
• If an error occurred, stop display that step.
Aging mode sequence (CD section):
Tray Turn
DISC 1
chucking
TOC Read
Track 1 Play
2 seconds
Last Track Play
2 seconds
FWD the tape B
“TAPE B AG-2”
2 minutes
Fast forward the tape B
“TAPE B AG-3”
Shut off or 20 seconds
RVS the tape B
“TAPE B AG-4”
2 minutes
Rewind the tape B
“TAPE B AG-5”
Shut off
Note: “TAPE * AG- * ” is display of each step.
Tray Tun
DISC 4
Chucking
TOC Read
Track 1 Play
2 seconds
Last Track play
[VACS ON/OFF]
• The volume control by VACS is turned ON/OFF.
Procedure:
1. Press the \/1 button to turn the power ON.
2. Press the PLAY MODE and \/1 buttons simultaneously.
3. The reaction display appears when switcing ON/OFF.
17
HCD-XGV80
SECTION 5
MECHANICAL ADJUSTMENTS
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads pinch rollers
erase head rubber belts
capstan
2. Demagnetize the record/playback head with a head demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power supply voltage unless otherwise noted.
Torque Measurement
Mode Torque Meter Meter Reading
2.9~6.9 mN•m
FWD (30 to 70 g•cm)
CQ-102C
FWD
back tension (2 to 6 g•cm)
FF/REW CQ-201B (80 to 170 g•cm)
(0.42 – 0.97 oz•inch)
0.19~0.59 mN•m
(0.03 – 0.08 oz•inch)
7.8~16.7 mN•m
(1.11 – 2.36 oz • inch)
SECTION 6
ELECTRICAL ADJUSTMENTS
DECK SECTION 0 dB = 0.775 V
Precaution
1. Demagnetize the record/playback head with a head demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjust.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in
this service manual. (As a general rule, playback circuit
adjustment should be completed before performing recording
circuit adjustment.)
6. The adjustments should be performed for both L-CH and R-CH.
7. Switches and controls should be set as follows unless otherwise specified.
8. Set to the test mode.
(1) Press the \/1 button to turn the power ON.
(2) Select the function “TAPE A or B”.
(3) Press the button of x (TC-B) , ENTER ,and DISC 3
simultaneously, to set the tape deck test mode
and displays “TEST MODE” on the fluorescent indicator
tube.
(4) To release from the test mode, press the \/1 button.
• Test Tape
Tape Signal Used for
P-4-A100 10 kHz, – 10 dB Azimuth Adjustment
WS-48B 3kHz, 0dB Tape Speed Adjustment
18
HCD-XGV80
)
set
MAIN board
MD (VIDEO) OUT jack (J701)
L-CH, R-CH
+
–
frequency counter
test tape
P-4-A100
(10 kHz, – 10 dB)
Tape speed adjustment
control inside motor
Record/Playback Head Azimuth Adjustment
DECK A DECK B
Note: Perform this adjustments for both decks
Procedure:
1. Mode: Playback (FWD)
test tape
P-4-A100
(10 kHz, – 10 dB)
MAIN board
MD (VIDEO) OUT jack (J701
L-CH, R-CH
level meter
set
+
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
Output
level
within
1dB
within
1dB
L-CH
peak
Adjustment Location: Playback Head (Deck A).
Record/Playback/Erase Head (Deck B).
forward
reverse
Tape Speed Adjustment
DECK B
Procedure:
Mode: Playback
R-CH
Screw
position
peak
L-CH
peak
R-CH
peak
Screw
position
3. Mode: Playback
MAIN board
test tape
P-4-A100
(10 kHz, – 10 dB)
L-CH
set
R-CH
in phase 45°90°135°180
MD (VIDEO) OUT jack (J701)
L-CH
R-CH
waveform of oscilloscope
good
oscilloscope
wrong
H
V
°
4. Repeat step 1 to 3 in playback (REV) mode.
5. After the adjustments, apply suitable locking compound to the
pats adjusted.
1. Insert the WS-48B into the deck B.
2. Press the H button on the deck B.
3. Adjust the tape speed adjustment control inside motor so that
frequency counter reads 3,000 ± 90Hz.
Sample value of wow and flutter W.RMS (JIS) less than 0.3%
WS-48B
Adjustment Location:
Tape speed Adjustment
19
HCD-XGV80
p
e
)
CD SECTION
Note :
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use LUV-P01 (4-999-032-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
S-Curve Check
Oscilloscope
BD board
TP(FE)
TP(DVC)
Procedure :
1. Connect oscilloscope to TP (FE).
2. Connect between TP (FE) and TP (DVC ( 1.65 V)) by lead
wire.
3. Press the \/1 button to turn the power ON.
4. Load a disc (LUV-P01) and actuate the focus search. (In consequence of open and close the disc tray, actuate the focus search)
5. Confirm that the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 2
±0.5 Vp-p.
S-curve waveform
symmetry
A
within 2
±
0.5Vp-
B
Note: Clear RF signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
VOLT/DIV : 200mV
TIME/DIV : 500ns
level : 1.45
±
0.3Vp-p
E-F Balance (1 Track jump) Check
oscilloscop
BD board
TP(TE)
TP(DVC)
Procedure:
1. Connect oscilloscope to TP (TE) and TP (DVC) board.
2. Press the \/1 button to turn the power ON.
3. Load a disc (LUV-P01) and playback the number nine track.
4. Press the bB button. (Becomes the 1track jump mode.)
5. Confirm that the level B and A (DC voltage) on the oscilloscope waveform.
center of
waveform
B
0V
B=1.3 ± 0.6Vp-p
Specified level: × 100=less than – 22%
A
B
symmetry
A (DC voltage
6. After check, remove the lead wire connected in step 2.
Note : • Try to measure several times to make sure than the ratio
of A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF Level Check
oscilloscope
BD board
TP(RFDC)
TP(RFAC)
Procedure :
1. Connect oscilloscope to TP (RFDC) and TP (RFAC).
2. Press the \/1 button to turn the power ON.
3. Load a disc (LUV-P01) and playback.
4. Confirm that oscilloscope waveform is clear and check RF
signal level is correct or not.
Checking Location:
[BD BOARD] (SIDE B)
DVC
SE
FE
TE
RFDC
RFAC
DVC
20
VIDEO SECTION
e
p
Note :
1. VIDEO board is basically designed to operate without adjustment. Therefore, check each item in order given.
2. Use HLV-402 (8-909-870-00) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
Video Level Check (VIDEO BOARD)
Purpose
This adjustment is made to satisfy the NTSC standard, and if not
adjusted correctly, the brightness will be too large or small.
Oscilloscop
75
Ω
set
HCD-XGV80
J721
VIDEO OUTPUT
Procedure:
1. Connect oscilloscope to VIDEO output.
2. Load a disc HLV-402 (8-909-870-00) playback.
3. Check that the video level is 1.0 ± 0.1 Vp-p.
(WHITE 100%)
1.0 ± 0.1 Vp-
21
HCD-XGV80
Five screws (BVTT 3x6)
7-1. CIRCUIT BOARD LOCATION
SECTION 7
DIAGRAMS
GAME board
TC-A board
CD-L board
ALBUM board
PANEL FL board
TRANS board
SUB TRANS board
TUNER PACK (FM/AM TUNER UNIT)
SUB AMP board
MAIN board
PA board
TUNER board
TC-B board
KEY board
PANEL VR board
MIC board
MIC VR board
DOOR SW board
HEADPHONE board
CD-R board
FRONT INPUT board
SENSOR board
VIDEO board
22
BD board
MOTOR board
LED board
r
WAVEFORMS
HCD-XGV80
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
• f : internal component.
2
•
• 5 : fusible resistor.
Note:
The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
•Voltages and waveforms are dc with respect to ground
•Voltages are taken with a VOM (Input impedance 10 MΩ).
•Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
• Abbreviation
: nonflammable resistor.
under no-signal conditions.
BD board section and VIDEO board section.
no mark: CD PLAY
Other board section
no mark: TUNER (FM/AM)
( ): TAPE PLAY
< >: TAPE REC
[ ]: CD PLAY
Voltage variations may be noted due to normal production tolerances.
Voltage variations may be noted due to normal production tolerances.
F : TUNER (FM/AM)
E : TAPE PLAY (DECK A)
d : TAPE PLAY (DECK B)
G : RECORD
J : CD PLAY
N : MIC INPUT
g : VIDEO
MX : Mexican
E51 : Chilean and Peruvian
SP : Singapole
4
W or less unless otherwise
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• : Pattern from the side which enables seeing.
(The other layers´ Patterns are not indicated.)
• Indication of transistor.
C
Q
B
E
Q
B
CE
B
• Abbreviation
MX : Mexican
E51 : Chilean and Peruvian
SP : Singapole
These are omitted.
These are omitted.
Q
CE
These are omitted.
– MAIN BOARD – – BD BOARD –
1
IC501 qa (XC-OUT)
3.0Vp-p
32KHz
VOL/DIV : 1V AC
2
IC501 qd (X-OUT)
16MHz
3
CN321 2
TAPE REC only
µ
sec
18
4
CN321 3
TAPE REC only
18
µ
sec
TIME/DIV : 10
VOL/DIV : 1V AC
TIME/DIV : 50nsec
VOL/DIV : 10V AC
TIME/DIV : 5
VOL/DIV : 10V AC
TIME/DIV : 5
2.0Vp-p
24Vp-p
36Vp-p
µ
sec
µ
sec
µ
sec
– VIDEO BOARD –
1 IC505 (XTAO)
2 IC505 (CLKB)
3 IC505 (RFAC)
150
33.8688 MHz
207
27 MHz
173
VOL/DIV : 0.2V AC
TIME/DIV : 0.5
4 IC505 6 (EPSIG)
H
2.5 Vp-p
VOL/DIV : 1V AC
TIME/DIV : 20nsec
2.8 Vp-p
VOL/DIV : 1V AC
TIME/DIV : 20nsec
0.8 Vp-p
µ
sec
0.8 Vp-p
VOL/DIV : 0.5V AC
TIME/DIV : 20
µ
sec
1
IC103 qg (RFAC)
2
IC103 qh (FE)
3
IC103 qk (TE)
5 Q301 E
– PANEL FL BOARD –
0.8 Vp-p
VOL/DIV : 0.5V AC
TIME/DIV : 20
µ
sec
1
IC601 is (X OUT)
H
1.2 Vp-p
VOL/DIV : 0.2V AC
TIME/DIV : 0.5
VOL/DIV : 0.2V AC
TIME/DIV : 0.2msec
VOL/DIV : 1V AC
TIME/DIV : 0.2msec
µ
sec
0.15 Vp-p
0.7 Vp-p
23
23
4MHz
3.0Vp-p
VOL/DIV : 1V AC
TIME/DIV : 0.2
6 IC307 6 (VOUT)
µ
sec
H
1.0 Vp-p
VOL/DIV : 0.5V AC
TIME/DIV : 20
µ
sec
HCD-XGV80
7-2. BLOCK DIAGRAMS
– CD SERVO SECTION –
+2.5V
VCC
+4.5V
VCC
A
PD1
B
PD2
C
D
I-V AMP
F
I1-6
E
I5-10
OPTICAL PICK-UP BLOCK
(A-MAX.3)
LASER DIODE
LD
LD
PD
PD
SPINDLE
MOTOR
MOTOR
COIL
FOCUS
COIL
S101
(LIMIT)
T+
T-
F+
F-
(
TRACKING
ON: when the optical pick-up
(
is inner position.
M101
M102
SLED
22
13
11
10
LD
DRIVE
Q101
M
M
FOCUS/TRACKING ERROR AMP
VCC
VCC
A
6
B
7
C
8
D
9
F
F I-V AMP
E
E I-V AMP
LD
1
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
VO4+
5
VO4
10
VO3+
1
VO3
2
VO2
56
VO2+
55
VO1
52
VO1+
47
-
-
-
-
RF AMP,
IC103
SUMMING
APC LD
AMP
RF
AMP
∑
A-D
IC102
MOTOR
DRIVE
MOTOR
DRIVE
COIL
DRIVE
COIL
DRIVE
FOCUS
ERROR AMP
TRACKING
ERROR AMP
APC PD
AMP
VREF
IN3+
IN3
IN2+
IN2
IN1+
IN1
STBY
IN4
-
-
-
4 3
23
22
27
26
32
31
35
34
8
EQ_IN
RF EQ
DC
AMP
VDC
BUFFER
DATA DECODERR,
D/A CONVERTOR
IC506
RST
AMP
26
RFC
RFACAC_SUM
RFDCO
RFDCI
VDC
SW
FE
FEI
TE
PD
15
28
29
16
17
18
14
12
2
TE
Q102
LD-ONFERFDC
5 9 346
AO4
AO6
RST
RST
AO3
AO5
CLK
• R-ch is omitted due to same as L-ch.
• Signal Path
: CD PLAY (ANALOG)
RFAC
173
RFDC
160
201
CD-DSP,
IC505
GPIO2
SRQ
GPIO3
SOK
AUDXCLKO
DRDAT0
DRDAT15
DRADR0
DRADR10
GPIO4
GPIO5
SCS
AUDDTO0
AUDLRCK
AUDBCK
GPIO11
CPSIG
CSIA
NVOEL
DRDQM1
DRDQM0
DRCK
DRBS
DRRAS
DRCAS
DRWEL
I
I
SYS RST
81
RST
204
203
26
205
6
7
74
78
77
70
76
72
68
73
49-56,
59-66
34-37,
39-45
Y
164
FE
TE
162
163
SE
CLKA
CLK
206
207
149
150
189
133
161
165
137
138
140
141
142
143
135
30
29
28
CLKB
XTAI
XTAO
GPIO9
24
XTSL
MDP
CE
VC
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
SSTP
GPIO14
GPIO13
GPIO12
DIGITAL SERVO,
MPEG DECODER, DAC
GPIO0
GPIO1
13 14 15 16 18 19
SI
SO
SCK
X502
27MHz
X501
33.8688MHz
12
DI
11
10
LD
DATA
DATA
CLK
LAT
MCLK
A+5V
(SW)
16
2
3
1
13
14
15
16
WE
+3.3V
REG
Q581
6 5
VCC
DATA
I/F
LRCK
BLK
CONTROL
17 18 20 38 15 39
BA0
CLK
CAS
RAS
LDQM
D/A
CONVERTOR
IC504
VDD
LOUT CD-L
DAC
DAC
UDQM
7
ROUT
8
24
DE
A0-A16 DQ0-DQ7
2-12,23,
25-31
2,4,5,7,8,10,11,13,
23-26,
42,44,45,47,48,50,51,53
29-34
A0-A9
SDRAM
IC507
ROM
IC508
8-15
0-15
DQ0-DQ15
13-15,
7-21
0-7
5
3
LPF
IC102
7
1
: VIDEO
A
R-CM
LPF
Q302
33
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
CD-DATA
XLT
35
SI
SO
To MAIN
SECTION
(Page 26)
VIDEO AMP
IC307
IN
3 6
2
STB
+4.5V
(IC103)
Q370
3
+2.5V
+3.3V
V-MUTE
SQ-CLK
TBL-SENS
BU UP/DW SW
LED-DISK
IC501 (1/4)
MTR-CTRL1
MTR-CTR2
SQ-DATA
CD-CLK
SCOR
HOLD
XRST
4036 37 193243
RST
SCS
SCK
SOK
SRQ
OUT
RIPPLE FILTER
Q201
+2.5V REG
IC201
+3.3V REG
IC202
49
48
(UP SWITCH)
LED DRIVE
47
Q412
44
45
Q411
5
DISC TABLE
S201
Q201
VCD-VIDEO
1
SENSOR
IC202
TABLE MOTOR DRIVER
IN2
1
IN1
9
B
D+5V
(SW)
(DISC No.)
IC201
MOTOR
DRIVE
D201
To MAIN
SECTION
(Page 26)
OUT2
OUT1
3
7
M201
M
(TABLE)
24
24
–TUNER/TAPE DECK SECTION –
HCD-XGV80
PB
HEAD
REC/PB
HEAD
ERASE
HEAD
DECK-A
DECK-B
R-CH
R-CH
R-CH
T331
Q323,325
BIAS OSC
Q331
SWITCH
Q321,322,327
TC A+9V
Q334,335
32
34
21
AIN 1
A
B
BIN 1
REC-OUT
70
120
PB/REC EQUALIZER AMP
EQ
R-CH
28 27 26
EQ
OUT 1
DECK A/B SELECT
IC301
13 12 11 15 14
A/B
+
NORM/HIGH
HPF
Q341,342,344
TAI1
ALC ON/OFF
REC MUTE ON/OFF
AMS DETECT
PB-OUT1
ALC1
MUTE ON/OFF
Q343
23
SYSTEM CONTROL
(CD MECHANISM CONTROL)
IC501(2/4)
53
AMS-IN
58
TC-MUTE
61
REC-MUTE
68
ALC
PB-L
REC-L
C
D
To MAIN
SECTION
(Page 26)
To MAIN
SECTION
(Page 26)
FM
75Ω
AM
TC BLOCK
REC(REW)
REC(FWD)
B-PHOTO
A-PHOTO
B-MODE
A-MODE
B-HALF
A-HALF
A-SOL
B-SOL
CAP M+
CN371
ANTENNA
FM/AM TUNER UNIT
ST-LOUT
FM ANT
FM ANT
AM ANT
AM ANT
ST-ROUT
ST-MUTE
STEREO
TUNED
OUT(ST-DIN)
IN(ST-DOUT)
ST-CLK
ST-CE
R-CH
ST-MUTE
STEREO
TUNED
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ST-L
E
To MAIN
SECTION
(Page 26)
Q383,384
A TRIG
DRIVE
Q381,382
B TRIG
DRIVE
Q385,386
CAP MOTOR
DRIVE
67
PB-A/B
BIAS
65
REC-B
50
REC-A
46
90
B-SHUT
A-SHUT
89
57
B-PLAY SW
56
A-PLAY SW
B-HALF
91
A-HALF
70
69
TC-RELAY
51
A-TRIG
52
B-TRIG
CAPM-CTRL
55
ST-MUTE
21
STEREO
2
TUNED
3
ST-DIN
25
ST-DOUT
23
27
ST-CLK
ST-CE
22
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER (FM/AM)
: PLAYBACK (DECK A)
: PLAYBACK (DECK B)
: RECORD
25
25
HCD-XGV80
– MAIN SECTION –
MIC 1
J802
MIC 2
To TUNER/TAPE
DECK SECTION
GAME
INPUT
DVD
INPUT
To CD SERVO
J801
To CD SERVO
SECTION
(Page 24)
(Page 25)
PHONO
MD IN
AUDIO
VIDEO
VIDEO
VIDEO OUT
SECTION
(Page 24)
A
C
E
To TUNER/TAPE
DECK SECTION
(Page 25)
L
IN
R
L
R
L
R
VCD-VIDEO
B
CD-L
PB-L
ST-L
J701 (1/2)
J500
J721
IC850(1/2)
R-CH
R-CH
R-CH
MIC AMP
PHONO
EQ AMP
IC601
10
RV802
MIC LEVEL
Q809, 810
VIDEO INPUT
SELECT
IC191
IN4 A
8
IN3
6
IN2
4
IN1
1
MUTE
VD-OUT
(75Ω)
DIGTAL
LPF1
ECHO
1 8
IN
IC851
A+10V
2
B
3
C
LOGIC
5
6db
MUTE
Q401
LPF2
OUT
RV801
ECHO LEVEL
+5V
REG
Q611
+
ECHO MIXING
IC850 (2/2)
VC(+5V)VC(+5V)
FUNCTION SELECT
SWITCH
IC181
X0
12
X1
14
X2
15
X3
11
16
VDD
VSS
8
AB
10 9
Q181
VC
(+5V)
+5V REG.
Q884
MIC OUT
X
13
Q182
A+9V
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC111
INC1
5
INB1
INPUT
4
INA1
SELECT
3
IND1
SWITCH
6
INEX1
7
R-CH
AUDIO-OUT
AU-SEL0
71
AU-SEL1
72
CD-MUTE
5
V-SELA
18
100
V-SELB
VIDEO-MUTE
76
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (3/4)
FRONT-RELAY
+
+
EQIC-DAT
EQIC-CLK
TEMP DET
LINE-MUTE
STK-MUTE
HP-MUTE
XC-OUT
XC-IN
X-OUT
X-IN
PROTECT
HP-IN
2
MIC
80
81
97
1
Q802,803
LEVEL SHIFT
82
83
86
11
10
13
15
88
87
95
8
RECB1
SURROUND OR
DPL BUFFER
X501
32.768KHz
X502
16MHz
R-CH
MUTE
Q114
D
J701 (2/2)
M901
(FAN)
M
TM401
IMPEDANCE
USE 6 – 16Ω
+
L
–
+
R
–
J891
PHONES
: TUNER (FM/AM)
: CD PLAY
: TAPE PLAY
: RECORD
: MIC INPUT
: VIDEO
TM402
+
L
–
+
R
To TUNER/TAPE
DECK SECTION
(Page 25)
L
MD OUT
R
SURROUND SPEAKER
IMPEDANCE
USE 8 – 16Ω
REC-L
R-CH
FAN MOTOR
B+
FAN MOTOR
DRIVE
Q961, 962
D406
FRONT SPEAKER
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
R-CH
–1
–2
MUTE
Q805,855
RY401
RY402
R-CH
MUTE
Q701
D405
R-CH
+
C
A
B
C
A
B
+
MID/
BASS &
TREBLE
R-CH
L+R
19
POWER AMP
18 11
IC801
12
STANDBY SWITCH
Q803, 804, 834
F OUT2
R-CH
14 15
SPEANA
TH831
+
R-CH
POWER AMP
14 9
IC101
VL
IN1
COMMAND
To DISPLAY/KEY
CONTROL/POWER
F
SUPPLY SECTION
(Page 27)
TEMPERATURE
DETECT SWITCH
Q842, 843
TEMPERATURE
DETECT SWITCH
Q831, 832
OVER LOAD
DETECT
Q801, 851
R-CH
VOLUME
CONTROL
OVER LOAD
DETECT
Q101, 151
INTERFACE
DATA
D401
D410
CPU
CLK
BB-A1
22 1621
PRPTECTPR
IC912
1
OCP
2
VP
3
OUT
SWOUT
BB-B1
17
4
OUT1
Q115
AC DET
24
18
Q166,167
R-CH
G
RELAY DRIVE
NC
R-CH
D803
DELAY
Q833
To DISPLAY/KEY
CONTROL/POWER
SUPPLY SECTION
(Page 27)
Q923
Q401, 402
Q805,806
LEVEL SHIFT
+
PROTECT SWITCH
Q431
R-CH
–
26
26
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