Sony HCD-V818 Schematic
MICROFILM
HCD-V818
SERVICE MANUAL
HCD-V818 is the tuner, deck, Video CD
and amplifier section in MHC-V818.
Model Name Using Similar Mechanism HCD-V800
CD
SECTION
TAPE
DECK
SECTION
CD Mechanism Type CDM38L-5BD24AL
Base Unit Type BU-5BD24AL
Optical Pick-up Type KSS-213D/Q-NP
Model Name Using Similar Mechanism HCD-GRX8/R800/RX88/RX99
T ape T r ansport Mechanism T ype TCM-230A WR1
E Model
TCM-230PWR1
SPECIFICATIONS
COMPACT DISC DECK RECEIVER
— Continued on next page —
– 1 –
SELF DIAGNOSIS
This unit is equipped with a self-diagnosis function.
The function is used for diagnosing the conditions of the circuits of the VIDEO board.
The circuits can be determined if normal or abnormal by the lighting of D502 of the VIDEO board.
Lighting of D502
When lit : Operates normally
Blinks repeatedly : The circuit may be faulty.
[VIDEO BOARD] (SIDE A)
D502
SL501
SL502
SL503
TEST MODE
IC505
CT503
VIDEO
FREQUENCY
IC507
– 2 –
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
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.
MODEL IDENTIFICATION
— BACK PANEL —
Parts No.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PR ODUCT MARKING is located on
the rear exterior.
The following
caution label is
located inside of
the unit.
• Abbreviation
EA : Saudi arabia model
HK : Hong Kong model
SP : Singapore model
MY : Malaysia model
TW : Taiwan model
IA : Indonesian model.
PARTS No.
4-999-907-0π
4-999-907-1π
4-999-907-3π
4-999-907-4π
4-999-907-5π
MODEL
SP, MY
EA
HK
TW
IA
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE
WITH MARK ! 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.
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 waveform is output two times.
– 3 –
TABLE OF CONTENTS
1. SERVICING NOTE ..........................................................5
2. GENERAL .......................................................................... 6
3. DISASSEMBLY
3-1. Loading Panel .......................................................................9
3-2. Front Panel ........................................................................... 9
3-3. Cassette Mechanism Deck .................................................. 10
3-4. Panel Board and Cont Com Board ...................................... 10
3-5. Disc Tray ...........................................................................11
4. TEST MODE ....................................................................12
5. SERVICE MODE ............................................................14
6. MECHANICAL ADJUSTMENTS ..........................16
7. ELECTRICAL ADJUSTMENTS ............................... 16
8. DIAGRAMS
8-1. Circuit Boards Location...................................................... 22
8-2. Block Diagrams
• CD Section ....................................................................... 23
• Video Section ................................................................... 25
• Deck Section ....................................................................27
• Main Section ....................................................................29
• Power Section ..................................................................31
• Display Section ................................................................33
• Section ............................................................... 35
8-3. Printed Wiring Board – CD Section –................................. 37
8-4. Schematic Diagram – CD Section – ................................... 39
8-5. Schematic Diagram – Deck Section – ................................41
8-6. Printed Wiring Board – Deck Section –.............................. 43
8-7. Printed Wiring Board – Video Section –............................. 45
8-8. Schematic Diagram – Videon (1/3) Section – .....................47
8-9. Schematic Diagram – Videon (2/3) Section – .....................49
8-10. Schematic Diagram – Videon (3/3) Section – ..................51
8-11. Printed Wiring Board – Main Section – ........................... 53
8-12. Schematic Diagram – Main (1/4) Section – ..................... 55
8-13. Schematic Diagram – Main (2/4) Section – ..................... 57
8-14. Schematic Diagram – Main (3/4) Section – ..................... 59
8-15. Schematic Diagram – Main (4/4) Section – ..................... 61
8-16. Printed Wiring Board – Mic/HP Section – ....................... 63
8-17. Schematic Diagram – Mic/HP Section – .......................... 64
8-18. Printed Wiring Board – Power Amp Section –.................65
8-19. Schematic Diagram – Power Amp Section – ................... 67
8-20. Schematic Diagram – Transformer Section –................... 69
8-21. Printed Wiring Board – Transformer Section –................ 71
8-22. Printed Wiring Board – Leaf SW Section – ..................... 72
8-23. Schematic Diagram – Leaf SW Section – ........................ 72
8-24. Printed Wiring Board – Display Section – ....................... 73
8-25. Schematic Diagram – Display Section – .......................... 75
8-26. Schematic Diagram – Panel Section – ............................. 77
8-27. Printed Wiring Board – Panel Section –........................... 79
8-28. Schematic Diagram – CD Motor Section – ......................81
8-29. Printed Wiring Board – CD Motor Section – ................... 83
8-30. IC Block Diagrams ........................................................... 85
8-31. IC Pin Functions ............................................................... 87
9. EXPLODED VIEWS
9-1. Case Section........................................................................ 99
9-2. Chassis Section ................................................................. 100
9-3. Front Panel Section ........................................................... 101
9-4. CD Mechanism Deck Section-1 (CDM38L-5BD24AL) .. 102
9-5. CD Mechanism Deck Section-2 (CDM38L-5BD24AL) .. 103
9-6. Base Unit Section (BU-5BD24AL) .................................. 104
9-7. TC Mechanism Section 1
(TCM230AWR1, TCM230PWR1) ................................... 105
9-8. TC Mechanism Section 2
(TCM230AWR1, TCM230PWR1) ................................... 106
10. ELECTRICAL PARTS LIST .................................. 107
– 4 –
SECTION 1
SERVICING NOTE
HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH
TURNS OFF
1
Remove the case.
3
pull-out the disc tray.
2
Turn the cam to the
direction of arrow.
Note for Installation (ROTARY ENCODER)
BU cam
Groove
Note:When attaching the Base unit, Insert the
section A into the groove of BU cam.
Section A
Note:When attaching the BU cam,
engage the Rotary encoder
switch as shown in the figure.
– 5 –
Front Panel
SECTION 2
GENERAL
65
64
63
62
61
60
59
55
54
1
565758
23 4 5
6
14 192018
21 22 23
24 252627 28
7
8
9
10
11
12
13
15
17
16
29
30
31
32
33
515253
47
4546
41424344
40
373839484950
3536 34
– 6 –
LOCATION OF PARTS AND CONTROLS
1 1/u (POWER) button
2 DISC 1 button and indicator
3 DISC 2 button and indicator
4 DISC 3 button and indicator
5 DISC SKIP/EX-CHANGE button
6 § (EJECT) button
7 Disc tray
8 VIDEO CD indicator
9 PBC indicator
10 PCB OFF indicator
11 PLAY MODE/DOLBY NR TUNER MEMORY button
12 EDIT/DIRECTION button
13 REPEAT/STEREO/MONO button
14 FUNCTION button
15 T APE A 9 button and indicator
16 T APE A ( button and indicator
17 TAPE B 9 button and indicator
18 TAPE B ( button and indicator
19 CD ^ button and indicator
20 TUNER/BAND button
21 KARAOKE PON/MPX button
22 SURROUND button
23 SONIC FORMATION button and indicator
24 ACTIVE button
25 SELECT button
26 RETURN button
27 PREV button
28 NEXT button
29 r REC button and indicator
30 P PAUSE button and indicator
31 HI-DUB button
32 CD SYNC button
33 PHONES jack
34 VOLUME, +, – knob
35 GROOVE button and indicator
36 DBFB button
37 ), + button and indicator
38 ENTER/NEXT button and indicator
39 JOG dial
40 p button
41 P FILE MEMORY button
42 GEQ CONTROL button
43 FILE SELECT button
44 FILE button and indicator
45 AUTO BPM button and indicator
46 0, – button and indicator
47 JAM button and indicator
48 SPEED button
49 SELECT button
50 ON/OFF button and indicator
51 BEAT LEVEL button
52 PAD B button
53 PAD A button
54 MIC 2 jack
55 MIC 1 jack
56 CD NON-STOP button and indicator
57 CD FLASH button
58 CD LOOP button
59 MIC LEVEL knob
60 ECHO LEVEL knob
61 DEMO button
62 DISPLAY button
63 TIMER/SELECT button
64 CLOCK/TIMER SET button
65 Display window
– 7 –
This section is extracted from
instruction manual.
– 8 –
SECTION 3
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
3-1. LOADING PANEL
3
Loading panel
Claws
2
Pull-out the disc tray.
1
Turn the cam to the direction
of arrow.
3-2. FRONT PANEL
3
Screw
(BVTP3x10)
9
Front panel assembly
7
(CN106)
8
Flat type wire
(CN101)
4
Connector
(CN203)
Flat type wire
6
Flat type wire
(CN107)
2
Screw
(BVTP3x10)
5
Connector
(CN752)
1
Three screws
(BVTP3x8)
– 9 –
3-3. CASSETTE MECHANISM DECK
)
6
Remove the cassette lids.
7
Spring
!º
Two screws
(BVTP 2.6x8)
2
Two screws
(BVTT 2x4)
4
Damper, oil
!∞
Mechanism deck
9
Three screws
(BVTP 2.6x8)
!¢
Bracket
!™
Screw
(BVTP 2.6x8)
!£
Two screws
(BVTP 2.6x8
3
Damper, oil
1
Two screws
(BVTT 2x4)
!¡
Screw
(BVTP 2.6x8)
5
Push the cassette lids.
8
Spring
3-4. PANEL BOARD AND CONT COM BOARD
7
Nut
6
Konb(Jog)
4
Shield
!™ CONT COM
board
1
Ten screws
(BVTP 2.6x8)
5
Flat type wire
(CN602)
2
Three screws
(BVTP 2.6x8)
3
Panel board
8
Konb(Volume)
9
Nut
– 10 –
!º
Four screws
(BVTP 2.6x8)
!¡
Six screws
(BVTP 2.6x8)
3-5. DISC TRAY
(Perfom after removing the front panel.)
3
Flat type wire (8 core)
4
Two claws
2
Pull-out the disc tray.
5
Remove the disc tray.
Turn the cam the
1
direction of arrow.
Note: When installing the Disc tray, pull around the flat type wire to
pass through the clawA and clawB, as shown in the figure.
Claw
A
Claw
B
– 11 –
SECTION 4
TEST MODE
VIDEO CD COLOR-BARS MODE
On this mode, the data of the color-bars signal as a picture signal and the 1kHz sine wave signal as a sound signal are output by the
mechanism control microcomputer (IC502) for video CD signal check. When measurement of the voltage and waveform on the VIDEO
board, perform it in this mode.
For refernce, the color-bars signal can be observed at J302 (VIDEO OUT) and the sound signal can be observed at J101 (VIDEO/MD
(AUDIO) OUT) using an oscilloscope.
1. Connect the lead wire to both ends of the land of SL503 of the VIDEO board.
2. Turn the power on. Press FUNCTION button to select CD.
3. After 2 or 3 seconds later, connect the lead wire.
4. After measuring, remove the lead wire connected.
[VIDEO BOARD] (SIDE A)
D502
SL501
SL502
SL503
TEST MODE
IC505
[VIDEO BOARD] (SIDE B)
SL503
TEST
MODE
SL502
SL501
IC502
CT503
VIDEO
FREQUENCY
IC507
– 12 –
IC502 OF VIDEO BOARD
IC502 of the VIDEO board consists of the former type and new type. The following table shows the differences between the two types.
Only spare parts for the new type IC502 are supplied.
Units using the former IC502 will not function when replaced with the new type without performing the following procedure.
Consequently, replace IC502 of units using the former type according to the following procedure.
Table of Differences
FORMER TYPE NEW TYPE
C407, 408 MOUNT NO MOUNT
IC502 M306200MC-302FP M306200MC-305FP
JW421, JW422 NO MOUNT MOUNT
IC402 MOUNT NO MOUNT
R413, 421, 422 MOUNT NO MOUNT
X401 MOUNT NO MOUNT
Replacing Procedure
1. Remove IC402.
2. Solder JW421 and JW422, or short-circuit with a lead wire, etc.
3. Replace IC502 with a new one.
How to Differentiate [VIDEO Board] (SIDE A)
Those with IC402: FORMER TYPE
IC505
Those without: NEW TYPE
– 13 –
SECTION 5
SERVICE 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. Press three buttons p , ENTER/NEXT , and 1/u simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset.
CD Delivery Mode
• This mode moves the pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.
Procedure:
1. Press 1/u button to turn the set ON.
2. Press CD LOOP button and 1/u button simultaneously.
3. A message “LOCK” is displayed on the fluorescent indicator tube, and the CD delivery mode is set.
MC Hot Reset
• This mode resets the set with the preset data kept stored in the memory. The hot reset mode functions same as if the power cord is plugged
in and out.
Procedure:
1. Press three buttons p , ENTER/NEXT , and DISC 1 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset.
Sled Servo 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 p , ENTER/NEXT , and § 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 ) + utton move the pick-up to outside track, or – 0 button to inside track.
5. To exit from this mode, perform as follows:
1) Move the pick-up to the most inside track.
2) Press three buttons in the same manner as step 2.
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 AM Tuner Step between 9kHz and 10kHz
• A step of AM channels can be changed over between 9kHz and 10kHz.
Procedure:
1. Press 1/u button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND button to select the BAND “AM”.
3. Press 1/u button to turn the set OFF.
4. Press ENTER/NEXT and 1/u buttons simultaneously, and the display of fluorescent indicator tube changes to “ AM 9k STEP” or “ AM
10k STEP”, and thus the channel step is changed over.
LED and Fluorescent Indicator Tube All Lit, Key Check Mode
Procedure:
1. Press three buttons p , ENTER/NEXT , and DISC 2 simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
Press DISC 2 button, and the key check mode is activated.
3. In the key check mode, the fluorescent indicator tube displays “K 1 V0 J0”. Each time a button is pressed, “K”value increases. Howe ver,
once a button is pressed, it is no longer taken into account.
“J” Value increases like 1, 2, 3 ... if rotating JOG dial in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction.
“V” Value increases like 1, 2, 3 ... if rotating VOLUME knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction.
4. To exit from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.
Aging Mode
This mode can be used for checking the operations of the CD player and tape deck.
• When problems occur;
Aging stops. If currently aging the tape deck, the state when aging stops will be displayed on the fluorescent indicator tube.
• When no problems;
Aging continues.
Preparations:
• Set the CD on the DISC1 tray.
• Insert a commercially available tape for recording (tapes which contents can be erased, etc.) in decks A and B.
– 14 –
Setting the aging mode:
Press the p button, ENTER/NEXT button, and DISC SKIP/EX-CHANGE button together.
When the aging mode is set, the CD roulette mark blinks. To exit the mode, press the 1/u button and turn OFF the power.
Sequence:
The aging mode is executed in the following sequence.
If the function is set to “CD” when the aging mode is set, aging is performed starting from the CD player. When set to “TAPE A” or “TAPE
B”, aging is started from deck A.
If the function is set to others, aging will not be started until the function is switched to CD or TAPE.
Aging of CD player (12 minutes)
Aging of deck A
Aging of deck B
Maximum about 12 minutes
Display of status:
• The aging status is displayed on the fluorescent display tube. (Only when executing the tape deck section.)
• During the aging of the tape deck, the operations performed will be displayed. If operations ended abnormally , this will be displayed at the
fluorescent indicator tube.
Tape Deck
Display of Operations
TAPE A AG-1
TAPE A AG-2
TAPE A AG-3
TAPE A AG-4
TAPE A AG-5
TAPE B AG-1
TAPE B AG-2
TAPE B AG-3
TAPE B AG-4
TAPE B AG-5
Operation
TAPE A REW
TAPE A FWD
TAPE A FF
TAPE A REV
TAPE A REW
TAPE B REW
TAPE B FWD
TAPE B FF
TAPE B REV
TAPE B REW
Timing of Ending
Shutoff
2 minute playback
20 seconds or shutoff
2 minutes playback
Shutoff
Shutoff
2 minute playback
20 seconds or shutoff
2 minute playback
Shutoff
Operations during aging
• Operations are performed in the following sequence during aging
<CD player>
1. The CD tray rotates and disc 1 is selected.
2. Chucking is performed.
3. TOC is read.
4. Track 1 played back for 8 seconds.
5. The CD tray opens and closes again.
6. 1 to 5 is repeated.
7. After 12 minutes of aging, aging is switched to the tape deck.
<Tape Deck>
1. The tape in deck A is rewound to the head.
2. The FWD side is played back for 2 minutes.
3. The tape is fast f orwarded (FF) for 20 seconds. The following procedure is performed w hen the tape end is reached before the 20 seconds.
4. The REV side is played back for 2 minutes.
5. The tape is rewound to the head (REW).
6. The tape in deck B is rewound to the head.
7. The FWD side is played back for 2 minutes.
8. The tape is fast f orwarded (FF) for 20 seconds. The following procedure is performed w hen the tape end is reached before the 20 seconds.
9. The REV side is played back for 2 minutes.
10. The tape is rewound to the head (REW).
11. Aging is switched to the CD player.
– 15 –
SECTION 6
)
MECHANICAL ADJUSTMENTS
SECTION 7
ELECTRICAL ADJUSTMENTS
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads pinch rollers
erase head rubber belts
capstan idlers
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
FWD
FWD
back tension
REV
REV
back tension
FF/REW
FWD tension
REV tension
Torque meter
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
Meter reading
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
71 to 143 g • cm
(0.98 – 1.99 oz • inch)
100 g or more
(3.53 oz or more)
100 g or more
(3.53 oz or more)
DECK SECTION 0 dB=0.775V
1. Demagnetize the record/playback head with a head damagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjusted.
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.
Signal Used forTape
P-4-A100
WS-48B
P-4-L300
10 kHz, –10 dB
3 kHz, 0 dB
315 Hz, 0 dB
Record/Playback Head Azimuth Adjustment
(Deck A, Deck B)
Note: Perform this adjustments for both decks.
Procedure:
1. Mode : Playback
test tape
P-4-A100
(10kHz, –10dB)
main board
CN301
Pin
1
Pin
3
Azimuth Adjustment
Tape Speed Adjustment
Level Adjustment
(L-CH)
(R-CH)
level meter
set
main board
CN301
Pin
2
(GND
+
–
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 1 dB of peak.
L-CH
peak
screw
position
R-CH
peak
output
level
within
1 dB
L-CH
peak
R-CH
peak
within 1dB
screw
position
– 16 –
3. Mode: Playback Tape Speed Adjustment (Deck A)
)
test tape
P-4-A100
(10kHz, –10dB)
set
main board
CN301
Pin
1
(L-CH)
Pin
L
R
2
oscilloscope
(GND)
Note: Set the test mode using the following method and begin tape
speed adjustment.
In the test mode, the speed will switch to double speed or
normal speed each time the HI-DUB button is pressed.
Procedure:
With the power turned ON, press the p button, ENTER/NEXT
button, and DISC 3 button simultaneously.
(The “VOLUME” on the fluorescent display tube will blink while
Pin
3
(R-CH)
in the test mode.)
To exit the test mode, press the 1/u button.
Waveform of oscilloscope
in phase 45
good
°
90
135
°
°
wrong
180
°
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
Adjustment Location: Playback Head (Deck A)
Record/Playback/Erase Head (Deck B)
1
Remove the four claws
2
Window
1. Insert the WS-48B into deck B.
2. Press the · button of deck B.
3. Press the HI-DUB button and play the tape at double speed.
4. Adjust RV1001 of the LEAF SW board so that the reading of
the frequency counter becomes 6000 ± 180 Hz.
5. Press the HI-DUB button and play the tape at normal speed.
6. Adjust RV1002 of the LEAF SW board so that the reading of
the frequency counter becomes 3000 ± 90 Hz.
Adjustment Location: LEAF SW board
Sample Value of Wow and flutter
± 0.15% W.Peak (IEC)
0.1% W.RMS (NAB)
± 0.2% W.Peak (DIN)
Playback Level Adjustment (Deck A, Deck B)
Procedure:
Mode: Playback
test tape
P-4-L300
(315Hz, 0dB)
set
level meter
Reverse Foward
main board
CN301
Pin
1
(L-CH)
Pin
3
(R-CH)
Deck A is RV311 (L-CH) and RV411 (R-CH), deck B is RV301
(L-CH) and RV401 (R-CH)
so that adjustment within the following adjustment level.
Adjustment level:
CN301 playback level: 301.5 to 338.3 mV (–8.2 to –7.2 dB)
level difference between the channels: within ± 0.5 dB
Adjustment Location: A UDIO board
Adjustment Location
[LEAF SW BOARD]
RV1001(High Speed)
RV1002(Normal Speed
RV1002
RV1001
– 17 –
Record Bias Adjustment (Deck B)
)
Record Level Adjustment (Deck B)
Procedure:
INTRODUCTION
When set to the test mode performed in Tape Speed Adjustment, when the tape is rewound after recording, the “REC memory
mode” which rewinds only the recorded portion and playback is
set.
This “REC memory mode” is convenient for performing this adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO.
(After recording, press the – 0 button without stopping will
return to the position where recording was started.)
1. Press FUNCTION button to select VIDEO. (This step is not
necessary if the above test mode has already been set.)
2. Insert a tape into deck B, press the r REC button, and then
press the ( button to start recording.
3. Mode: Record
VIDEO (AUDIO) IN
1) 315 Hz
2) 10 kHz
AF OSC
attenuator
600
Ω
} 50 mV (–23.8 dB)
blank tape
CS-123
set
Procedure:
INTRODUCTION
When set to the test mode performed in Tape Speed Adjustment, when the tape is rewound after recording, the “REC memory
mode” which rewinds only the recorded portion and playback is
set.
This “REC memory mode” is convenient for performing this
adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO.
(After recording, press the – 0 button without stopping will
return to the position where recording was started.)
1. Press FUNCTION button to select VIDEO. (This step is not
necessary if the above test mode has already been set.)
2. Insert a tape into deck B, press the r REC button, and then
press the ( button to start recording.
3. Mode: Record
VIDEO (AUDIO) IN
315Hz 50 mV (–23.8 dB)
AF OSC
attenuator
600
Ω
set
blank tape
CS-123
4. Mode: Playback
recorded
position
set
main board
CN301
Pin
1
(L-CH)
Pin
3
(R-CH)
level meter
5. Confirm playback the signal recorded in step 2 become adjustment level as follows.
If these levels do not adjustment le vel, adjust the R V341 (L-CH)
and R V441 (R-CH) on the A UDIO board to repeat steps 3 and 4.
Adjustment level: The playback output of 10 kHz le vel difference
against 315 Hz reference should be ± 1.0 dB.
Adjustment Location: A UDIO board
Adjustment Location:
[AUDIO BOARD] (Conductor Side)
RV341(Lch),RV441(Rch)
Record Bias
RV301 RV401
RV441 RV341
RV311(Lch),RV411(Rch)
Playback Level (Deck A)
RV411
RV311
4. Mode: Playback
recorded
position
set
main board
CN301
Pin
1
(L-CH)
Pin
3
(R-CH)
level meter
5. Confirm playback the signal recorded in step 2 become adjustment level as follows.
If these levels do not adjustment level, adjust the R V301 (L-CH)
and RV351 (R-CH) on the MAIN board to repeat steps 3 and 4.
Adjustment level:
CN403 playback level: 47.2 to 53.0 mV (–24.3 to –23.3 dB)
Adjustment Location: MAIN board
[MAIN BOARD] (Conductor Side)
RV301
Record Level (Lch
1 3
CN301
IC301
RV351
Record Level (Rch)
RV301(Lch),RV401(Rch)
Playback Level (Deck B)
– 18 –
CD SECTION
0V
C (DC
voltage)
Sled servo
OFF
Sled servo
ON
NOTE :
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) 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 (VC)
Procedure :
1. Connect oscilloscope to test point TP (FE) on BD board.
2. Connect between test point TP (FEI) and TP (VC) by lead wire.
3. Turned Power switch on.
4. Put disc (YEDS-18) in and turned Power switch on again and
actuate the focus search. (actuate the focus search when disc
table is moving in and out.)
5. Check the oscilloscope waveform (S-curve) is symmetrical between A and B.
And confirm peak to peak level within 3±1 Vp-p.
S-curve waveform
+
–
symmetry
Note : A clear RF signal w aveform means that the shape “◊” can
be clearly distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV
TIME/DIV : 500ns
level : 1.3 Vp-p
+0.25
–0.20
E-F Balance (T raverse) Check (Without remote comander)
oscilloscope
BD board
TP (TE)
TP (VC)
+
–
Procedure :
1. Short-circuit SL502 of the video board to GND.
2. Connect oscilloscpe to test point TP (TE) on BD board.
3. Turned Power switch on. Press FUNCTION button to select
CD.
4. Set a disc (YEDS-18) and play.
5. Press the PLAY MODE button.
(The sledding servo is turned OFF.)
6. Check the level B of the oscilliscope’s w aveform and the A (DC
voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than ± 7%
A
Within 3
±
1 Vp-p
B
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.
• T ake sweep time as long as possible and light up the brightness to obtain best waveform.
RF Level Check
oscilloscope
BD board
TP (RF)
TP (VC)
+
–
Procedure :
1. Connect oscilloscope to test point TP (RF) on BD board.
2. Turned Power switch on.
3. Put disc (YEDS-18) in to play the number five track.
4. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not.
Traverse waveform
Center of the waveform
B
0V
level : 500 mV ± 100 mVp-p
A (DC voltage)
7. Press the PLA Y MODE button. (The tracking servo and sledding
servo are turned ON.) Confirm the C (DC voltage) is almost
equal to the A (DC voltage) is step 6.
Traverse waveform
– 19 –
E-F Balance (T raverse) Chec k (With remote commander)
oscilloscope
BD board
TP (TE)
TP (VC)
+
–
7. Press the PLAY MODE button. (The tracking servo and sledding servo are turned ON.) Confirm the C (DC v oltage) is almost
equal to the A (DC voltage) is step 7.
Traverse waveform
Procedure :
1. Connect oscilloscpe to test point TP (TE) on BD board.
2. Short-circuit SL502 of the video board to GND.
3. Turned Power switch on. Press FUNCTION button to select
CD.
4. Put disc (YEDS-18) in to play the number five track.
5. Press the PLAY MODE button. (The tracking servo and the
sledding servo are turned OFF.)
6. Check the level B of the oscilliscope's waveform and the A (DC
voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than ± 22%
Traverse waveform
Center of the waveform
B
0V
level : 1.3 ± 0.6 Vp-p
A (DC voltage)
0V
Tracking servo
Sled servo
OFF
Tracking servo
Sled servo
ON
8. Desolder the short-land (SL502) short-circuited at step 2.
C (DC
voltage)
Adjustment Location :
[ BD BOARD ] – SIDE A –
TP
(TE)
TP
(RF)TP(VC)
TP
(FE)
TP
(FEI)
– 20 –
VIDEO SECTION
Frequency adjustment
1. Connect the fr equency counter to check point of the VIDEO
board.
2. Adjust CT503 of the VIDEO board so that the frequency counter
read 27MHz ± 80Hz at STOP condition.
Adjustment Location :
[ VIDEO BOARD ] – SIDE A –
D502
SL501
SL502
SL503
TEST MODE
VIDEO board
(DCLK)
IC505
frequency counter
+
–
[ VIDEO BOARD ] – SIDE B –
SL503
TEST
MODE
SL502
SL501
IC502
(27MHz)
(GND)
(27MHz)
(GND)
CT503
VIDEO
FREQUENCY
IC506
IC507
– 21 –
8-1. CIRCUIT BOARDS LOCATION
d
d
)
SECTION 8
DIAGRAMS
TRANSFORMER board
LEAF SW board
AUDIO board
CONT (COM) board
POWER board
VIDEO board
MAIN boar
CD-SW board
DECO board
TUNER(FM/AM
SENSOR board
CONNECTOR board
MIC board
MOTOR (TURN) board
PANEL board
BD board
MOTOR (SLIDE) boar
HP board
– 22 –
8-2. BLOCK DIAGRAMS
– CD SECTION –
OPTICAL PICK-UP BLOCK
(KSS-213D/Q-NP)
DETECTOR
E
A
LASER
DIODE
LD
POWER
M102
SLED
MOTOR
M101
SPINDLE
MOTOR
C
D
B
E
F
M
M
A
C
D
B
F
LD
PD
TRACKING
FOCUS
COIL
COIL
VCC
VC
DRIVE
Q101
SD+
SD
SP+
SP
LD
T+
T
F+
F
A
3
C
5
D
6
B
4
E
9
F
8
1
2 19
FOCUS/TRACKING COIL DRIVE
SPINDLE/SLED MOTOR DRIVE
1
2
16
17
13
12
27
26
LD
PD
IC102
SUMMING
TRACKING
APC LD
AMP
IC103
RF AMP
RF
AMP
FOCUS
ERROR
AMP
ERROR
AMP
4
5
19
20
10
9
24
23
TFDR
TRDR
FFDR
FRDR
SRDR
SFDR
RF EQ
AMP
VC
BUFFER
VC
LD ON
REF
SWITCH
Q102,103
CTRL 1
HCD-V818
IC391
CD DIGITAL
1
IC104
+5V
OUT
OPTICAL
DOUT
ADATA
BCLK
LCLK
SUBQ
SQCK
AMUTE
SCOR
SCLK
MCK
SENS
DATA
XLT
CLK
C2PO
CTRL 1
CTRL 2
XRST
LD ON
• SIGNAL PATH
: CD
: Digital out
: VIDEO
A
VIDEO
SECTION
(Page 25)
IC101
DIGITAL SERVO
DIGITAL SIGNAL PRCESSOR
ADDRESS
GENERATOR
RF
3
FE
15
TE
13
11
10
12
VC
17
CTRL 2
INTEG-
RATOR
INTEGRATOR
VC
100
RF AC
36
ASYMMETRY
CORRECTION
ASYI
38
ASYO
39
NOISE
SHAPER
30
RFDC
26
FE
29
TE
27
SE
28
TFDR
4
TRDR
6
FFDR
8
FRDR
10
SRDR
2
SFDR
MDP
96
CONVERTER
GENERATOR
GENERATOR
GENERATOR
MUX
18-TIMES
OVERSAMPLING
A/D
PWM
GENERATOR
TRACKING
PWM
FOCUS
PWM
SLED
PWM
FILTER
EFM
DEMODULATOR
DIGITAL
PLL
CONTROL SIGNAL
BLOCK
SERVO
BLOCK
SERVO DSP
TRACKING
SERVO
FOCUS
SERVO
SLED
SERVO
SYNC
PROTECTOR
CLV SERVO
PROCESSOR
32K
RAM
REGISTER
TIMING
GENERATOR 1
TIMING
GENERATOR 2
DETECTOR
DATA BUS
FOK
MIRR
DFCT
ERROR
CORRECTOR
D/A DATA
PROCESSOR
SEQUENCER
INTERFACE
SERVO
AUTO
SERVO
PEAK
DETECTOR
SUBCODE Q
PROCESSOR
CLOCK
GENERATOR
DIGITAL
OUT
SERIAL/
PARALLEL
PROCESSOR
CPU
INTERFACE
MD2
D OUT
DATA
BCLK
LCLK
SUBQ
SQCK
MUTE
SCOR
SCLK
XTAI
XTSL
SENS
DATA
XLT
CLK
C2PO
S STOP
XRST
70
+5V
71
46
47
45
77
78
79
74
83
62
64
80
86
87
88
56
99
S101
LIMIT SW
81
15
MUTE
M701
TURN
MOTOR
M801
SLIDE
MOTOR
09
7
M
2
4
M
7
MOTOR DRIVER
OUT1
OUT2
MOTOR DRIVER
OUT2
OUT1
TURN
IC701
SLIDE
IC801
RIN
IN1
IN2
FIN
TABLE
SENSOR
IC702
3
6
S801
OPEN/CLOSE
2
10
DET
DISC
SENSOR
IC703
ROTARY
ENCODER
S811
Q701
T. SENS
DISC SENS
ENC 1
ENC 2
ENC 3
OPEN
TBL.L
TBL.R
LOAD IN
LOAD OUT
C
MAIN
SECTION
(Page 29)
– 23 – – 24 –
HCD-V818
– VIDEO SECTION –
ADATA
BCLK
LRCK
C2P0
* Note
D-RAM
IC507
RAS
UCAS
LCAS
A0
RASO
16 - 19 22 - 26
CAS
13 14 28 29
38 42 40
INVERTER
IC501
1
13
5
DATAI
DATAO
CLK1
HRDY
INT
HSEL
RST
4
10
8
INVERTER
Q502
MWE WE
4
CD-DATA
3
CD-BCK
CD-LRCK
5
6
CD-C2P0
112
HD-OUT
119
HD-IN
117
HCK
HRDY
113
114
HINT
121
HSEL
60
RESET
PGIO2/VSYNC/CSYNC
93
A8
DQ1
2 - 10 31 - 39
DQ16
O0
13 - 15 17 - 21
VIDEO/CD DECODER
IC505
O7
10 - 29
MD0
ROM
IC506
A11
25 4 28 29 3 2 14 10 12 - 5 27 26 23
I
MD15
A17
A0
58 - 44
I
MA0
A10
MA10
Y-OUT
C-OUT
DA-DATA
DA-LRCK
DA-BCK
VCK-IN
DA-XCLK
CE
22
37
MCE
69
75
110
108
111
106
86
BUFFER
Q301
TRAP
Q302,306,307
BUFFER
Q303,304
MIX AMP
Q308,310
DIGITAL FILTER & D/A CONVERTER
18
19
17
D/A
CONV
IC509
When replacing IC502, refer to “IC502 of
video Board” in “Service Note” (page 13).
OUTPUT AMP
IC401
R-CH
MUTE
Q454
MUTE
Q453
AMP
IC101
5
3
PLM
7
1
14
11
J302
VIDEO OUT
J301
S VIDEO
4
132
13
L - CH
OUT
A
CD
SECTION
(Page 24)
09
DATA
XLT
CLK
SENS
SCLK
AMUTE
CTRL1
CTRL2
LDON
SCOR
SUBQ
SQCK
XRST
MCK
DATA0
DATAI
CLK1
INT
HSEL
HRDY
RESET
31
DATA1O
32
DATA1I
33
CLK1
CL680 INT
20
21
CL680 HSEL
23
CL680 HRDY
24
680 RESET
45
BUS
DSP DATA
3
DSP LATCH
4
5
DSP CLK
1
SENSE
SENSE CLK
2
DSP MUTE
10
11
CTRL1(L:DOUBLE)
27
CTRL2
28
LDON
18
SCOR
36
SUBQ DATA
SUBQ CLK
37
DEVICE RESET
77
MECHA CONTROL
IC502
SHARPNESS
DF LATCH
A7
XIN
XOUT
NT/PAL
TEST LED
XRESET
NEW
TYPE
(*NOTE)
DSENS
U to I
I2C.CLK
I2C.DATA
DATA0
CLK1
34
22
65
15
13
93
73
12
X501
10MHz
+5V
D502
SYSTEM
SELECT
S501
INTERFACE
NTSC
AUTO
PAL
IC402
9
8
MODE
7
10 21 20 4
CLOCK
DIVIDER
24
11
1
3
1
27MHz
INVERTER
IC504
X503
CT503
VIDEO
FREQUENCY
12
6
8
27MHz
384FS
768FS
IIC DATA
IIC CLK
XRST
G
MAIN
SECTION
(Page 30)
• R CH: Same as L ch
14
I2C.DATA
13
19
72
29
30
9
10
11
12
I2C.CLK
I to U
U to I
TXD
RXD
RESET
XIN
XOUT
18
19
X401
8MHz
20
FORMER TYPE
(*NOTE)
• SIGNAL PATH
: CD
: CHROMA
:Y
: VIDEO
– 25 – – 26 –
– DECK SECTION –
HCD-V818
HP101
PB HEAD
(DECK A)
REC/PB HEAD
(DECK B)
HRPE101
ERASE HEAD
PB A/B
MS OUT
PB L
LM ON/OFF
NORM/HIGH
NR ON/OFF
REC/PB/PASS
REC L
BIAS ON/OFF
RM ON/OFF
ALC ON/OFF
RELAY REC/PB
CAPM CNT1M
CAPM CNT2M
CAPM CNT1P
CAPM CNT2P
CAP M H / L
A SHUT
B
MAIN
SECTION
(Page 29)
17
2
DOLBY NR
RECOUT
C
32 33
S1008
B CrO
19
B 120/70
PAS
BIAS SW
M
2
DOL
DOLBY
TYPE B
M1
CAPSTAN
MOTOR
CN301
3
R CH
28
27
M
MS
26
PB OUT
LM ON/
OFF
NORM/
HIGH
NR ON/
OFF
PB
RIN
BIAS ON/OFF
RM ON/OFF
ALC ON/OFF
CAP MOTOR
CONTROL
Q336-343
CONTROL
RV1002
NORMAL
SPEED
SPEED
Q1001
40
25
18
23
24
44
20
22
15
RV1001
HIGH
SPEED
1
SWITCH
Q335
REEL
DETECT
IC1001
S1004
A CrO
RV311
4
PLAYBACK
LEVEL
DECK A
RV301
PLAYBACK
LEVEL
DECK B
RV341
REC
BIAS
REC BIAS
BIAS OSC
T621, Q621, 622
IC611
L
R
L
R
X
R CH
R CH
3
P
ERASE BIAS
IC601
1
IC602
R
REC/PB
16
PB-A/B
A IN
48
B IN
46
RV301
REC LEVEL
+7.5V
Q623
EQIN
38
EQOUT
36
A 120/70
70
120
DOLBY NR
IC301
39
REEL
DETECT
IC1002
S1001 (A PLAY)
• R CH : Same as L ch
• SIGNAL PATH
+5V
S1002 (B PLAY)
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
09
• PLUNGER SOLENOID is supplied
as the MECHANICAL BLOCK ASSY.
A DECK/
B DECK
PLUNGER
TRIGGER
MOTOR
CONTROL
Q331-334
S1003
(A HALF)
S1005
(REC A)
S1006
(B HALF)
S1009
(REC B)
+5V
+5V
B SHUT
A PLAY
B PLAY
B HALF
B TRIG
A TRIG
– 27 –
– 28 –
HCD-V818
– MAIN SECTION –
(Page 34)
DISPLAY
SECTION
F
VIDEO IN
(AUDIO)
L
MD IN L
MD OUT L
J750
MIC 2
J751
MIC 1
DJ-SIG
DJ-MUTE
J101
PB L
REC L
IC750(1/2)
RV750
MIC
LEVEL
ECHO PROCESSOR
IC751
2
LPF 1 IN
IC411(1/2)
LPF 2 OUT
RV751
ECHO
LEVEL
36
1
V
64
MD
69
TC
67
TU
66
CD
68
IC750(2/2)
MUTE
Q411
SELECT
SWITCH
MICON
INTERFACE
34
33 32
1 2 3
9
IC411(2/2)
7
2
R-CH
EQ
IC111(1/2)
AMP
&
SW
R-CH
MIX AMP
IC401
6
7
EQ
42
AMP
60
58
57
VOLUME
IC111(2/2)
41 36
38 39
DBFB
SWITCH
Q111,112
L-CH
XRST
IIC DATA
IIC CLK
G
VIDEO
SECTION
(Page 26)
SPE SIG
IIC DATA
IIC CLK
RESET
MUTE
Q113
J191
MUTE
40
6
SUPER WOOFER
AMP
IC191
1
Q191
DBFB
SWITCH
Q141,143
SUPER
WOOFER
FRONT
DBFB
E
DISPLAY
SECTION
(Page 33)
B
DECK
SECTION
(Page 28)
FM/AM TUNER
TUNER UNIT IS
SUPPLIED AS
THE ASSEMBLED
BLOCK
C
CD
SECTION
(Page 24)
09
RELAY REC/PB
A SHUT
B SHUT
B HALF
A HALF
A PLAY
B PLAY
PB A / B
NORM/HIGH
BIAS ON/OFF
RM ON/OFF
NR ON/OFF
REC/PB PASS
CAPM CNT1M
CAPM CNT2M
CAPM CNT1P
CAPM CNT2P
ALC ON/OFF
LM ON/OFF
CAP M H/L
A TRG
B TRG
MS OUT
ST L
COM DIN
COM DATA
STEREO
TUNED
ST CE
MUTE
COM CLK
TBL. L
TBL. R
T. SENS
DISC SENS
OPEN
ENC-1
ENC-2
ENC-3
LOAD IN
LOAD OUT
97
TC RELAY
26
A SHUT
27
B SHUT
28
B HALF
98
A HALF
95
A PLAY SW
96
B PLAY SW
87
PB A/B
93
EQ H//N
BIAS
92
90
REC MUTE
89
NR ON/OFF
R/P PASS
88
CAPM CNT1M
85
CAPM CNT2M
86
17
CAPM CNT1P
CAPM CNT2P
77
99
ALC ON/OFF
TC MUTE
87
82
CAP M H/L
83
A TRG
84
B TRG
31
AMS IN
1
3
M62442 LAT
2
52
M62442 DATA
3
51
M62442 CLK
66
ST DIN
70
STEREO
TUNED
69
68
ST CE
72
ST MUTE
67
ST DOUT
ST CLK
65
60
TBL L
TBL R
61
76
T SENS
DISC SENS
75
OUT OPEN
81
ENC1
80
ENC2
79
ENC3
78
LOAD IN
64
LOAD OUT
63
MASTER CONTROL
IC501
PL RELAY
POWER
CD POWER
STK MUTE
DBFB H/L
TA MUTE
F RELAY
XRST
IIC DATA
IIC CLK
RESET
AC CUT
XT1
XT2
2
1
6
8
57
55
56
F RELAY
PL RELAY
D
15
RESET
SWITCH
Q951
16
RESET
IC951
D951
X1
11
10
X2
14
13
46
100
+5V
X501
5MHz
X502
32.768KHz
5
MUTE
SWITCH
Q142
POWER ON/OFF
CD POWER
STK MUTE
POWER
SECTION
(Page 31)
• R CH: Same as L ch
• SIGNAL PATH
: FM
: CD
: PB
: REC
: VIDEO/MD
– 29 – – 30 –
– POWER SECTION –
TM402
SURROUND
SPEAKER
HCD-V818
L
D
MAIN
SECTION
(Page 30)
09
PL RELAY
F RELAY
FRONT
DBFB
STK MUTE
CD POWER
POWER ON/OFF
FRONT
POWER AMP
3
CD+5V
AU/D5V SW
IC201
RELAY
DRIVE
RELAY
DRIVE
Q401,402
RECT
D111,112
Q403,407
VF
VF
T501
POWER
TRANSFORMER
RY402
THERMAL
DET
Q321,322
THP321
12
8
OVER LOAD
DET
Q201
UNREG
–12V
POWER B+
POWER B–
Rch
PROTECT
CONTROL
Q301-303,
Q306,307
+5V REG
IC932
3 1
+12V REG
Q911-913
RECT
D102
RECT
D101
VFDP
D5V
SWITCHED
CD REG
Q931
+5V REG
Q933
Q937
Q932
Q934
Rch
A+7V
A–7V
+5.6V
D932
M+7V
SWITCH
Q901
Q905
+10V
ST+10V
MUTE
SWITCH
Q304,305
D+5V
(UNSW)
D+5V
(SW)
+5.6V REG
IC931
3 1
+7V REG
IC941
3 1
+7V REG
IC901
3
–7V REG
IC902
3
+10V REG
IC911
3 1
3 1
+10V REG
IC921
Rch
CD +5V
CONTROL
SWITCH
Q931,932
1
2
RECT
D103,
D104
RY401
VF REG
Q111
RELAY
DRIVE
Q408
Rch
SP,MY,EA,HK,TW,IA
VOLTAGE
SELECTOR
S501
FAN MOTOR
DRIVER
Q961, 962
AC
IN
R-CH
RY404
UNREG
–12V
SPEAKER
FRONT
Rch
• R CH : Same as L ch
• SIGNAL PATH
: FM
• Abbreviation
: Saudi Arabia model.
EA
: Singapore model.
SP
: Malaysia model.
MY
: Hong Kong model.
HK
: Taiwan model.
TW
: Indonesian model.
IA
M
TM401
J755
PHONES
R
M901
FAN
MOTOR
L
– 31 – – 32 –
HCD-V818
– DISPLAY SECTION –
IIC DATA
IIC CLK
RESET
E
MAIN
SECTION
(Page 30)
SPE SIG
09
X601
8MHz
SDA
24
SCL
23
10
RESET
XOUT
8
XIN
9
SEG1-SEG20
FL601,Q70,702
FLUORESCENT INDICATOR TUBE
SPEANA BPF FILTER
IC603
4
LINE IN
DISPLAY CONTROL
IC601
GR1-GR13
41 - 5354 - 57
F01
F02
F03
F04
L+R
79
LED1
•
80
•
1
LED
SWITCH
6
•
11
•
12
•
14
18
LED15
L SEL
SIRCS
L+R
JOG A
JOG B
KEY 0
KEY 3
VOL A
VOL B
25
33
34
35
36
37
32
21
22
26
29
S602
VOLUME
19
20
ROTARY
ENCODER
SPEANA 1
SPEANA 2
SPEANA 3
SPEANA 4
VF
SP1
17
SP2
16
SP3
15
SP4
14
L+R
13
PANEL LED
LED
CONTROL
Q603
REMOTE
CONTROL
RECEIVER
IC602
S601
(JOG)
ROTARY
ENCODER
KEY
MATRIX
Q601,602
D+5V
X501
8MHz
SP1
SP4
L+R
19
I2C DATA
I2C CLK
18
RESET
4
29
SIRCS
27
JOG A
28
JOG B
2
XOUT
XIN
3
33
BPF LOW
36
BPF HIGHT
37
L+R
PANEL CONTROL
IC801
KEY O
KEY 1
BPM LED B
BPM LED A
BOMBER LED
ON/OFF LED
MUTE
DATA
CLK
LAT
CH
RST
BSY
D805
S801-808
KEY
MATRIX
LED
SWITCH
Q854,855
SPEANA
CONTROL
Q958-960
SOUND MIX
SD
15
SI
14
ST
8
CH
16
RST
17
BUSY
20
XT XT
23
4.09MHz
D806
IC851
X851
OUT
D801-803
PANEL LED
MUTE
SWITCH
Q851
23
DJ MUTE
DJ SIG
F
MAIN
SECTION
(Page 29)
38
39
61
62
63
64
5
14
15
16
13
12
20
– 33 –
– 34 –
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