Sony HCD-DR7AV, HCD-XB800AV Service Manual
HCD-DR7AV/XB800AV
SERVICE MANUAL
HCD-DR7AV/XB800AV is the tuner,
deck, CD and amplifier section in
LBT-DR7AV/XB800AV.
SECTION
TAPE DECK
SECTION
Photo: HCD-DR7AV
Model Name Using Similar Mechanism HCD-DR4/DR5/DR6/DR440/
CD
CD Mechanism Type CDM37M-5BD32L
Base Unit Type BU-5BD32L
Optical Pick-up Type KSS-213D/Q-N
Model Name Using Similar Mechanism NEW
T ape Transport Mechanism T ype TCM-230AWR2/230PWR2
AEP Model
UK Model
HCD-XB800AV
E Model
Australian Model
HCD-DR7AV
W300/W5000/XB500
SPECIFICATIONS
COMPACT DISC DECK RECEIVER
— Continued on next page —
MICROFILM
– 1 –
– 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.
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 PRODUCT MARKING is located on
the rear exterior.
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. MODEL PRODUCT COUNTRY
4-214-788-0π DR7AV: SP INDONESIA
4-214-788-1π DR7AV: EA INDONESIA
4-214-788-2π DR7A V: AUS INDONESIA
Parts No.
4-214-788-6π DR7AV: TH THAILAND
4-214-785-3π XB800AV: AEP, UK, EE, CIS INDONESIA
4-214-785-4π XB800A V: AEP THAILAND
This caution
label is located
inside the unit.
• Abbreviation
SP : Singapore model
EA : Saudi Arabia model
AUS : Australian model
TH : Thailand model
EE : East European model
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK ! OR DO TTED 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.
– 3 –
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
SECTION 1
SERVICING NOTE
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 four times.
About CD-TEXT display
This unit is provided with a simple CD-TEXT display function.
The CD-TEXT contents of 20 tracks are displayed on the fluorescent display tube.
Since the function is simple, some special characters may not be
displayed, or may be displayed as other characters.
– 4 –
TABLE OF CONTENTS
1. SERVICING NOTE .......................................................... 4
2. GENERAL ....................................................................6
3. DISASSEMBLY
3-1. Front Panel ............................................................................ 8
3-2. Main Board ........................................................................... 8
3-3. Sub Panel .............................................................................. 9
3-4. CD-L/CD-R Board and CD Lid Assembly ........................... 9
3-5. Tape Mechanism Deck and Cassette Lid ............................ 10
3-6. CD Mechanism Deck .......................................................... 10
3-7. Base Unit ............................................................................. 10
3-8. Disc Table ........................................................................... 11
4. SERVICE MODE ............................................................ 12
5. MECHANICAL ADJUSTMENTS ..........................16
6. ELECTRICAL ADJUSTMENTS ............................... 16
7. DIAGRAMS
7-1. Circuit Boards Location ...................................................... 19
7-2. Block Diagrams
• BD (CD) Section.............................................................. 21
• Deck Section .................................................................... 23
• Main (1/2) Section ........................................................... 25
• Main (2/2) Section ........................................................... 27
• Power Section (DR7AV model)....................................... 29
• Power Section (XB800AV model)................................... 31
• Display Section ................................................................ 33
7-3. Printed Wiring Board – BD (CD) Section – ....................... 37
7-4. Schematic Diagram – BD (CD) Section – .......................... 39
7-5. Printed Wiring Board – Main Section – .............................. 41
7-6. Schematic Diagram – Main (1/5) Section – ........................ 43
7-7. Schematic Diagram – Main (2/5) Section – ........................ 45
7-8. Schematic Diagram – Main (3/5) Section – ........................ 47
7-9. Schematic Diagram – Main (4/5) Section – ........................ 49
7-10. Schematic Diagram – Main (5/5) Section – ..................... 51
7-11. Schematic Diagram – Deck Section – .............................. 53
7-12. Printed Wiring Board – Deck Section – ........................... 55
7-13. Schematic Diagram – Power (1/2) Section –
(DR7AV model)................................................................ 57
7-14. Schematic Diagram – Power (2/2) Section –
(DR7AV model)................................................................ 59
7-15. Printed Wiring Board – Power Section –
(DR7AV model)................................................................ 61
7-16. Schematic Diagram – Power (1/2) Section –
(XB800AV model)............................................................ 63
7-17. Schematic Diagram – Power (2/2) Section –
(XB800AV model)............................................................ 65
7-18. Printed Wiring Board – Power Section –
(XB800AV model)............................................................ 67
7-19. Schematic Diagram – Panel FL Section – ........................69
7-20. Printed Wiring Board – Panel FL Section – ..................... 71
7-21. Schematic Diagram – Panel VR Section – .......................73
7-22. Printed Wiring Board – Panel VR Section – .................... 75
7-23. Schematic Diagram – TC Panel Section – ....................... 77
7-24. Printed Wiring Board – TC Panel Section –..................... 79
7-25. Schematic Diagram – CD Panel Section – ....................... 81
7-26. Printed Wiring Board – CD Panel Section – .................... 83
7-27. Schematic Diagram – CD Motor Section – ...................... 85
7-28. Printed Wiring Board – CD Motor Section –................... 87
7-29. Schematic Diagram – Jack Section – ............................... 89
7-30. Printed Wiring Board – Jack Section – ............................ 91
7-31. Schematic Diagram – Trans Section –
(XB800AV model)............................................................ 93
7-32. Printed Wiring Board – Trans Section –
(XB800AV model)............................................................ 95
7-33. Schematic Diagram – Trans Section –
(DR7AV model)................................................................ 97
7-34. Printed Wiring Board – Trans Section –
(DR7AV model)................................................................ 99
7-35. Schematic Diagram – Leaf SW Section – ...................... 100
7-36. Printed Wiring Board – Leaf SW Section – ................... 100
7-37. Schematic Diagram – Surround Section – ..................... 101
7-38. Printed Wiring Board – Surround Section –................... 101
7-39. IC Block Diagrams ......................................................... 103
7-40. IC Pin Functions ............................................................. 104
8. EXPLODED VIEWS
8-1. Case and Back Panel Section ............................................ 107
8-2. Front Panel Section 1 ........................................................ 108
8-3. Front Panel Section 2 ........................................................ 109
8-4. Chassis Section ................................................................. 110
8-5. TC Mechanism Section 1 (TCM230AWR2/230PWR2)... 111
8-6. TC Mechanism Section 2 (TCM230AWR2/230PWR2)... 112
8-7. CD Mechanism Section (CDM37M-5BD32L) ................. 113
8-8. Base Unit Section (BU-5BD32L) ..................................... 114
9. ELECTRICAL PARTS LIST ...................................... 115
– 5 –
Front Panel
SECTION 2
GENERAL
10 11 12
66
63
71
70
69
68
67
65
55
64
6162
5960
565758
54
1
2
34
56
79
8
14 15 16 17
13
25
26
28
27
29
18
19
20
21
22
30
23
24
31 32
33
34
53
52
51
50
49
48
47
35
37
36
39
40
41
42
43
444546
38
– 6 –
LOCATION OF PARTS AND CONTROLS
1 1/u (Power) button and indicator
2 DEMO (STANDBY) button (DR7AV)
POWER SAVE/DEMO (STANDBY)
button (XB800AV)
3 DISPLAY button
4 SPECTRUM ANALYZER button
5 Display window
6 GEQ control button
7 SYNC BASS button
8 SYNC EQ button
9 Remote sensor
10 PTY button (XB800AV)
11 TUNING MODE button
12 STEREO/MONO button
13 ENTER/NEXT button and indicator
14 TUNER MEMORY button
15 TUNER/BAND button
16 TUNING - button
17 TUNING + button
18 FUNCTION button
19 VOLUME knob
20 PHONES jack
21 MIC LEVEL knob
22 MIX MIC jack
23 GROOVE button and indicator
24 SUPER WOOFER button and indicator
25 MODE button
26 ª (B Deck) button and indicator
27 · (B Deck) button and indicator
28 p (B Deck) button
29 0 (B Deck) button
30 ) (B Deck) button
31 P (B Deck) button
32 r REC (B Deck) button
33 HI-SPEED DUB button
34 CD SYNCHRO button
35 PLAY MODE button
36 REPEAT button
37 0 (CD) button
38 ) (CD) button
39 ·P (CD) button and indicator
40 p (CD) button
41 DISK SKIP button
42 = AMS + knob
43 VIDEO2 INPUT jacks
44 PRO LOGIC button and indicator
45 EDIT button
46 NON-STOP button and indicator
47 LOOP button
48 FLASH button
49 DISC 5 button
50 DISC 4 button
51 DISC 3 button
52 DISC 2 button
53 DISC 1 button
54 DOLBY NR button
55 DIRECTION button
56 ) (A Deck) button
57 0 (A Deck) button
58 p (A Deck) button
59 · (A Deck) button
60 ª (A Deck) button
61 KARAOKE PON/MPX button
62 DSP button and indicator
63 EFFECT button and indicator
64 ENTER button and indicator
65 GEQ CONTROL button
66 P. FILE MEMORY
67 Equalizer indicators
68 t/CLOCK SET button
69 SLEEP button
70 REC button and indicator
71 DAILY button and indicator
• AMS is the abbreviation for Automatic
Music Sensor.
This section is extracted from
instruction manual.
– 7 –
SECTION 3
)
)
)
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
3-1. FRONT PANEL
3
Connector (CN452)
2
Connector (CN702)
1
Three flat type wires
(CN303,CN304,CN431)
4
7
Front panel
Connector (CN802)
3-2. MAIN BOARD
!¢
Back panel
!£
Power cord
!™
Screw (BVTP 3x8)
(HCD-XB800AV)
6
Four screw (BVTP 3x8)
2
Two screws (BVTP 3x8)
9
8
7
5
Screw (BVTP 3x8
Four screws (BVTP 3x8)
0
Two screws (BVTP 3x8)
(HCD-DR7AV)
Five screws (BVTP 3x8)
Seven screws (BVTP 3x8)
!§
Main board
6
Connector (CN903)
(HCD-DR7AV)
1
Flat type wire (CN1
!¡
Fan motor
(HCD-DR7AV)
5
Flat type wire (CN411)
4
Connector (CN412)
– 8 –
3
T uner unit
!∞
Two screws (BVTP 3x8
3-3. SUB PANEL
4
Two screws (BTP 2.6x6)
3
Open the CD lid assembly
8
Sub panel block
5
Screw (BVTP 3x8)
7
Three screws (BVTP 2.6x8)
6
Two screws (BVTP 2.6x8)
1
Two screws (BVTP 2.6x8)
2
Front input board
9
Two screws (BVTP 2.6x8)
0
Bracket (CD-R2)
3-4. CD-L/CD-R BOARD AND CD LID ASSEMBLY
1
Three screws (BVTP 2.6x8)
3
Bracket (CD-L)
4
CD-L board
2
Three screws
(BVTP 2.6x8)
Torsion spring (CD-L)
!£
CD lid assembly
!™
Torsion spring (CD-L)
Sub panel assembly
5
Knob (CD)
6
Nut
0
CD-R board
!¡
Torsion spring (CD-R)
7
Three screws
(BVTP 2.6x8)
9
Bracket (CD-R)
8
Two screws (BVTP 2.6x8)
Sub panel assembly
CD lid assembly
– 9 –
3-5. TAPE MECHANISM DECK AND CASSETTE LID
t
Claw
Holder assembly
Claw
Claw
6
Holder (A) assembly
(Refer to lower figure)
1
8
Torsion spring (TC-A)
Three screws (BVTP 2.6x8)
2
Three screws
(BVTP 2.6x8)
Cassette lid assembly
4
Cassette lid (A) assembly
(Refer to upper figure)
Claw
5
Cassette lid (B) assembly
(Refer to upper figure)
Portion
A
Portion
B
Portion
3-6. CD MECHANISM DECK 3-7. BASE UNIT
1
Five screws (BVTP3x8)
9
Torsion spring (TC-B)
7
Holder (B) assembly
(Refer to lower figure)
Portion
A
B
3
T ape mechanism
2
CD mechanism
deck
3
Base uni
2
Boss
1
Yoke fitting
– 10 –
3-8. DISC TABLE
Note:
When the disc table is installed, adjust the positions of
roller cam and mark ” as shown in the figure, then set to
the groove of disc table.
A
2
Screw (BVTP3X8)
3
Bracket (BU)
1
Screw (BVTP3X8)
4
Stop screw
5
Disc table
A
– 11 –
SECTION 4
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 t/CLOCK SET , ENTER , and 1/u simultaneously.
2. “COLD RESET” is displayed on the fluorescent display tube and reset is executed.
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 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 po wer cord is plugged
in and out.
Procedure:
1. Press three buttons t/CLOCK SET , ENTER , 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. Press 1/u button to turn the set ON.
2. Press three buttons t/CLOCK SET , 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, When the = AMS + knob is rotated in the clockwise direction, the pick-up moves outside. When
rotated counterclockwise, it moves inside.
5. To exit from this mode, perform as follows:
1) Move the pick-up to the most inside track.
2) Execute MC cold reset. (Press the three buttons t/CLOCK SET , ENTER , and 1/u button simultaneously.)
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 (DR7AV Only)
• 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 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 t/CLOCK SET , ENTER , 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 @ 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 = AMS + knob 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.
– 12 –
AMS Test Mode
• This mode is used for checking the AMS operations of the tape deck.
JIG
7-819-039-12 Alignment tape, AMS-110A
Procedure:
1. Press the 1/u button to turn the set ON.
2. Set the tape (AMS-110A).
3. Press the three buttons t/CLOCK SET , ENTER , and DISC 3 button simultaneously.
4. “TEST MODE” is displayed on the fluorescent display tube.
5. Press the FUNCTION button and switch the function to the deck with the tape (AMS-110A).
6. Press the CD SYNCHRO button. “AMS CHECK” is displayed on the fluorescent display tube and the tape is rewound.
7. AMS starts in the normal direction. If the AMS count is 2 at shut down, proceed to step 8.
“NG” is displayed at other times, and the deck stops.
8. AMS starts in the opposite direction. If the AMS count is 2 at shut down again, “OK” is displayed.
“NG” is displayed at other times.
Aging Mode
During the aging mode, both the CD player and tape deck are executed together.
• If an error occurs:
Aging stops, and the error state is displayed on the fluorescent display tube.
• If no error occurs:
Aging is repeated.
Procedure:
1. Press the 1/u button to turn the set ON.
2. Load 10 minute tapes with unbent rec-proof tabs in decks A and B.
3. Set CDs on the DISC 1 and DISC 4 tables.
4. Set the CD mode REPEAT to OFF and PLAY MODE to ALL DISCS.
(Press the PLAY MODE and REPEAT buttons to set these modes.)
5. Press the FUNCTION button to switch the function to “CD”.
6. Press the three buttons t/CLOCK SET , ENTER , and DISC 4 button simultaneously.
7. Aging starts.
8. To end aging, press the 1/u button to turn the set OFF.
Aging Sequence:
Aging is performed in the following sequence.
• T ape Deck
1. The tape in deck A is rewound. “TAPE A AG-1” is displayed.
2. The FWD side of deck A is played for two minutes.
“TAPE A AG-2” is displayed.
3. The tape in deck A is fast forwarded. “TAPE A AG-3” is displayed. Fast forward is carried out for 20 seconds or to the tape end.
4. The RVS side of deck A is played for two minutes.
“TAPE A AG-4” is displayed.
5. The tape in deck A is rewound. “TAPE A AG-5” is displayed.
6. The FWD side of deck B is played for two minutes.
“TAPE B AG-2” is displayed.
7. The tape in deck B is fast forwarded. “TAPE B AG-3” is displayed. Fast forward is carried out for 20 seconds or to the tape end.
8. The RVS side of deck B is played for two minutes.
“TAPE B AG-4” is displayed.
9. The tape in deck A is rewound. “TAPE A AG-5” is displayed.
10. Repeated from step 2.
• CD
1. The tray rotates.
2. DISC 1 is chucked.
3. The TOC is read.
4. The first track is played for 2 seconds.
5. The last track is played for 2 seconds.
6. The tray rotates.
7. DISC 4 is chucked.
8. The TOC is read.
9. The first track is played for 2 seconds.
10. The last track is played for 2 seconds.
11. Repeated from step 1.
– 13 –
• Display when ended abnormally
When the tape deck is abnormal:
The state when ended abnormally is displayed.
The contents of display are the same as that during aging.
When the CD player is abnormal:
A message indicating that errors such as “CD MEC ERR” have occurred.
Check the error contents in the following error history display mode.
Error History Display Mode
Mode which enables the history of error occurring in the CD player to be checked.
Execute this mode after ending the aging mode.
Procedure:
1. Press the 1/u button to turn the set ON.
2. Press the three buttons t/CLOCK SET , ENTER , and CD SYNCHRO simultaneously.
3. A message such as “EMC@@EDC**” is displayed.
@@ : Number of mechanical errors (Up to three past errors)
** : Number of errors (NO DISC ERROR) which occurs after chucking (Up to three past errors)
4. When checking the history of mec hanical errors, press the PLAY MODE button. When checking errors after chucking, press the
REPEAT button to switch the display.
5. Press the 1/u button to end and turn the set OFF.
6. To erase the error history, perform COLD reset.
(Press the three buttons t/CLOCK SET , ENTER , and DISC 1 simultaneously.
• Viewing the mechanical error history display
(Switch the history by pressing the PLAY MODE button.)
Display
E@@M#*****
@@ : Error number. 00 is the newest.
# : Operating state of table
0 : Currently in the INITIAL mode
7 : Currently rotating to the right
8 : Currently rotating to the left
A : Currently chucking down
B : Currently chucking up
* : Inv alid
• Viewing the NO DISC ERROR history display
(Switch the history by pressing the REPEAT button.)
Display
E@@D##$$%*
@@ : Error number. 00 is the newest
## : Error contents
01: Focus error
02: GFS error
03: Setup error
$$ : Retries
00: NO DISC is determined without attempting chucking
retry
02: NO DISC is determined after chucking retry.
% : State when determined as NO DISC
1 : When stopped
2 : At setup
3 : At TOC READ
4 : When accessing
5 : When playing
6 : When pausing
7 : When manual searching (during play)
8 : When manual searching (during pausing)
* : Inv alid
– 14 –
SECTION 5
MECHANICAL ADJUSTMENTS
SECTION 6
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
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
Used forTape
Azimuth Adjustment
Tape Speed Adjustment
Level Adjustment
test tape
P-4-A100
(10kHz, –10dB)
set
MD OUT
level meter
+
–
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
– 15 –
3. Mode: Playback Tape Speed Adjustment (Deck A)
)
test tape
P-4-A100
(10kHz, –10dB)
oscilloscope
MD OUT
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-SPEED DUB button is pressed.
set
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)
Remove the cassette lid.
Procedure:
With the power turned ON, press the t/CLOCK SET button,
ENTER button, and DISC 3 button simultaneously.
(The “VOLUME” on the fluorescent display tube will blink while
in the test mode.)
To exit the test mode, press the 1/u button.
1. Insert the WS-48B into deck B.
2. Press the · button of deck B.
3. Press the HI-SPEED 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-SPEED 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
W.RMS (JIS) less than 0.3%
(test tape: WS-48B)
Playback Level Adjustment (Deck A, Deck B)
Procedure:
Mode: Playback
Reverse Foward
test tape
P-4-L300
(315Hz, 0dB)
set
MD OUT
level meter
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: AUDIO board
Adjustment Location
[LEAF SW BOARD]
RV1001(High Speed)
RV1002(Normal Speed
RV1002 RV1001
– 16 –
Record Bias Adjustment (Deck B)
AF OSC
VIDEO 1 (AUDIO) IN
315Hz 50 mV (–23.8 dB)
blank tape
CS-123
set
attenuator
600
Ω
Record Level Adjustment (Deck B)
Procedure:
INTRODUCTION
When set to the test mode performed in Tape Speed Adjustment, when the tape is r ewound 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 1.
(After recording, press the 0 button without stopping will return to the position where recording was started.)
1. Pr ess FUNCTION button to select VIDEO 1. (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 1 (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 1.
(After recording, press the 0 button without stopping will return to the position where recording was started.)
1. Press FUNCTION button to select VIDEO 1. (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
4. Mode: Playback
recorded
position
set
MD OUT
level meter
5. Confirm playback the signal recorded in step 2 become adjustment level as follows.
If these levels do not adjustment lev el, 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 lev el dif ference
against 315 Hz reference should be ± 1.0 dB.
Adjustment Location: AUDIO board
Adjustment Location:
[AUDIO BOARD] (Conductor Side)
RV341(Lch),RV441(Rch)
Record Bias
RV311(Lch),RV411(Rch)
Playback Level (Deck A)
4. Mode: Playback
recorded
position
set
MD OUT
level meter
5. Confirm playback the signal recorded in step 2 become adjustment level as follows.
If these levels do not adjustment lev el, adjust the R V301 (L-CH)
and R V351 (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 RV401
RV441 RV341
RV301(Lch),RV401(Rch)
Playback Level (Deck B)
RV311
RV411
– 17 –
Record Level (Lch)
RV301
1
3
14
15
28
1
IC301
RV351
Record Level (Rch)
29
56
42
43
CD SECTION
Note:
1. CD Block is basically constructed 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.
Note: Clear RF signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV
TIME/DIV : 500ns
level : 1.45 ± 0.25 Vp-p
S Curve Check
BD board
TP (FE)
TP (VC)
oscilloscope
+
–
Procedure :
1. Connect the oscilloscope to test points TP (FE) and TP (VC).
2. Connect TP (FEI) and GND, and TP (AGCCON) and GND of
the BD board with lead wires.
3. Press the 1/u button to turn the set ON.
4. With the disc (YEDS-18) loaded, press the ·P button and
perform focus search. (Focus search will be performed in the
same way even while the disc table is pushed in and out.)
5. Check the symmetry and peak to peak level of the oscilloscope
waveform (S curve) at this time.
S-curve waveform
symmetry
A
B
Within 4
±
1 Vp-p
E-F Balance (1 Track Jump) check
oscilloscope
BD board
TP (TE)
TP (VC)
+
–
Procedure:
1. Connect oscilloscope to test point TP (TE) on BD board.
2. Press the 1/u button to turn the unit ON.
3. Put disc (YEDS-18) in to play the number five track.
4. Press the ·P button.
5. Check the le vel B of the oscilloscope's wa veform and the A (DC
voltage) of the center of the Traverse waveform.
Confirm the following:
• A/B x 100 = less then ± 22 (%)
• B = 1.3 ± 0.6 Vp-p
1 track jump waveform
0V
Center of the waveform
B
A (DC voitage)
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) and TP (VC) on BD
board.
2. Connect TP (AGCCON) and GND of the BD board with lead
wires.
3. Press the 1/u button to turn the set ON.
4. Put disc (YEDS-18) in and playback 5 track.
5. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not.
6. After check, remove the lead wire connected in step 2.
±
level : 1.3
0.6 Vp-p
Adjustment Location :
[ BD BOARD ] — SIDE A —
TP
(VC)
TP
(RF)
TP
(AGCCON)
TP (FE)
TP
(TE)
TP
(FE1)
Symmetry
– 18 –
7-1. CIRCUIT BOARDS LOCATION
d
HCD-DR7AV/XB800AV
SECTION 7
DIAGRAMS
TC-A board
PANEL FL board
PANEL VR board
SURROUND AMP board
TC-B board
FRONT INPUT board
LED (PANEL) board
TUNER UNIT
JACK board
SUB TRANS board
(XB800AV)
TRANS board
MAIN boar
LEAF SW board
AUDIO board
CD MOTOR board
CD-L board
DOOR SWITCH board
TABLE SENSOR board
BD board
CD-R board
PA board
LED (CD) board
– 19 –
HCD-DR7AV/XB800AV
7-2. BLOCK DIAGRAMS
– BD (CD) SECTION –
OPTICAL PICK-UP BLOCK
(KSS-213B/K-N)
DETECTOR
E
A
LASER
DIODE
LD
POWER
SPINDLE
M102
SLED
MOTOR
M101
MOTOR
C
D
B
E
F
M
M
• SIGNAL PATH
: CD
: Digital out
09
ABC
D
F
FD
PD
TRACKING
COIL
FOCUS
COIL
VCC
VC
SD+
SD–
SP+
SP–
LD
DRIVE
Q101
T+
T–
F+
F–
A
5
C
7
D
8
B
6
E
11
F
10
LD
3
PD
4
VREF
IC102
FOCUS/TRACKING COIL DRIVE
SPINDLE/SLED MOTOR DRIVE
CH2OUTR
11
CH2OUTF
12
CH1OUTF
14
CH1OUTR
13
CH3OUTF
17
CH3OUTR
18
CH4OUTF
15
CH4OUTR
16
CH2FIN
CH2RIN
CH1FIN
CH1RIN
CH3RIN
CH3FIN
CH4SIN
CH4BIN
MUTE
SUMMING
TRACKING
APCLD/PD
AMP
5
6
2
3
23
24
25
27
20
IC103
RF AMP
RF
AMP
FOCUS
ERROR
AMP
ERROR
AMP
TFDR
TRDR
FFDR
FRDR
SRDR
SFDR
BUFFER
HOLD SW
VC
VC
RF EQ
AMP
REF
RF
16
FF
14 49
TE
13
12
VC
LDON
22
1521
INTEGRATOR
INTEG-
RATOR
VC
IC101
DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
RF AC
51
ASY1
ASYMMETRY
CORRECTION
ASY0
48
VC
38
CE
42
RFDC
43
FE
TE
SE
CE
TFDR
TRDR
FFDR
FRDR
SRDR
SFDR
MDP
OPERATIONAL
AMPLIFIER
ANALOG
SWITCH
PWM
GENERATOR
TRACKING
PWM
GENERATOR
FOCUS
PWM
GENERATOR
SLED
PWM
GENERATOR
DIGITAL
CLV
39
41
40
42
30
31
32
33
29
28
26
DIGITAL
PLL
A/D
CONVERTER
SERVO DSP
TRACKING
SERVO
FOCUS
SERVO
SLED
SERVO
16K
RAM
EFM
DEMODULATION
SUBCODE
PROCESSOR
SERIAL IN
INTERFACE
OVER SAMPLING
DIGITAL FILTER
3rd ORDER
NOISE SHAPER
PWM PWM
DATA BUS
ERROR
CORRECTOR
D/A
INTERFACE
SERVO
AUTO
SEQUENCER
TIMING
LOGIC
DIGITAL
OUT
CPU
INTERFACE
SERVO
INTERFACE
XTA1
STAO
D OUT
XRST
SQSO
SQCK
SENS
DATA
XLAT
CLOK
SCOR
XLON
SCLK
SSTP
RMUT
LMUT
LMUT
AIN1
LOUT1
LOUT2
AIN2
LOUT2
66
67
60
3
1
2
8
5
6
7
20
14
9
27
79
80
70
71
72
77
76
75
S101
LIMIT SW
X101
16.9344MHz
DOUT
XRST
SQSO
SENS
DATA
XLT
CLOK
SCOR
SQCK
+5V
L OUT
R OUT
HOLD
A
MAIN
SECTION
(Page 25, 27)
– 21 – – 22 –
– DECK SECTION –
HCD-DR7AV/XB800AV
HP101
PB HEAD
(DECK A)
REC/PB HEAD
(DECK B)
HRPE101
ERASE HEAD
PB A/B
MS OUT
TC PB L
LM ON/OFF
NORM/HIGH
NR ON/OFF
REC/PB/PASS
TC REC L
BIAS ON/OFF
RM ON/OFF
ALC ON/OFF
RELAY
CAPM CNT1
CAPM CNT2
CAP M H / L
A SHUT
B
MAIN
SECTION
(Page 25,
26, 27)
17
2
DOLBY NR
RECOUT
D
32
S1008
B CrO
2
19
B NORM/CROM/
METAL
PAS
DOL
BIAS SW
M
31, 33
M1
CAPSTAN
MOTOR
DOLBY
TYPE B
CN301
1
R CH
28
27
M
MS
26
PB OUT
LM ON/
OFF
NORM/
HIGH
NR ON/
OFF
PB
LIN
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
43
20
22
15
RV1001
HIGH
SPEED
3
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
A HALF
B HALF/REC A/REC B
B TRIG
A TRIG
– 23 –
– 24 –
HCD-DR7AV/XB800AV
– MAIN (1/2) SECTION –
VIDEO 2
IN
VIDEO
IN
PHONO
(L IN)
FM/AM TUNER
TUNER UNIT IS
SUPPLED AS THE
ASSEMBLED
BLOCK
DECK
SECTION
(Page 24)
CD
SECTION
(Page 22)
POWER
SECTION
(Page 30,
B
A
C
32)
MD (L IN)
R, AUDIO
(L IN)
V2, AU,
L-CH IN
FRONT
(L IN)
TC PB L
MIC-SIG
J804
J702
J701
ST-L
CD-L
J701
J701
J804
J703
IC191
AV SWITCH
6
IN3
IN4
IN1
1
B
A
2 3 5
46 45 28
IC181 SELECTOR
12
X0
X1
14
15
X2
A
10 9
46 45
X
B
VD OUT
13
J702
SPEANA
J701
L-CH SIG
TC REC L
IC101
AF AMP
VIDEO
OUT
REC OUT
D
E
(Page 29, 31)
B
6
7
DISPLAY
SECTION
(Page 33)
POWER
SECTION
DECK
SECTION
(Page 24)
REAR-L
CENTER
M
POWER
SECTION
(Page 29, 31)
10
IC101
C
IC601
PHONO AMP
3
1
SOUND PROCESSOR 1
L+R
69
IN A2
IN B2
68
IN C2
67
IN D2
66
65
IN E2
MIC IN
2
64
IN F2
59 60
B OUT 2 IN F2
REC B2
BUS OUT2
REC A2
BBA2
BBB2
BUF IN2
30
57
36
SWITCH
Q111
TC REC L
SWITCH
Q112
(TA-MUTE)
7
58
39
38
37
SWITCH
Q114
SWITCH
Q115
44 34
MUTE
SWITCH
Q113
10
14
MAIN CONTROL
IC501 (1/2)
7
PL-CLK
PL-DATA
PL-LAT
V-MUTE
493-LAT
7
23
23
24
24
25
25
28
28
34
34
38
38
44
44
45
45
46
46FUNC-SEL0
47
47
48
48493-MUTE
22AC-CUT
RESET
F-RELAY
G
F
DISPLAY
SECTION
(Page 33)
POWER
SECTION
(Page 29, 31)
• R CH: Same as L ch
• SIGNAL PATH
: FM
: CD
: PB
: REC
: VIDEO/MD
– 26 –
74
09
1
11
5
IC201
SOUND PROCESSOR 2
10
TRIM
4
TRIM
VOL
VOL
DATA
SCK
REQ
9
3
24
22
23
23
25
24
MUTE
SWITCH
Q281
MUTE
SWITCH
Q271
(TA-MUTE)
MUTE
SWITCH
Q803
D807
RESET
SWITCH
Q802
MUTE
SWITCH
Q804
6
3
LINE-MUTE
F-RELAY
DBFB-H/L
SW-MODE
BASS FREQ
FUNC-SEL1
493-DATA
– 25 –
– MAIN (2/2) SECTION –
HCD-DR7AV/XB800AV
N
POWER
SECTION
(Page 29, 31)
H
POWER
SECTION
(Page 30, 32)
A
BD (CD)
SECTION
(Page 22)
B
DECK
SECTION
(Page 24)
FM/AM TUNER
TUNER UNIT IS
SUPPLED AS THE
ASSEMBLED
BLOCK
PL-RELAY
HP.SW
SCOR
SQ-DATA
SQ-CLK
CD-DATA
CD-CLK
SENS
HOLD
X-LAT
X-RST
TRAY.SENS
TBL.L
TBL.R
UP SW
LED
B TRG
A TRG
CAPM-CNT 2
CAPM-CNT 1
CAP-M-H/L
MS OUT
LM ON/OFF
REC/PB/PASS
NR ON/OFF
RM ON/OFF
BIAS ON/OFF
NORM/HIGH
PB A/B
ALC ON/OFF
B PLAY
A PLAY
A-HALF
B-HALF/REC A/REC B
B SHUT
A SHUT
RELAY
RDS-INT
RDS-DATA
ST-MUTE
STEREO
TUNED
ST-CE
ST-DOUT
ST-DIN
ST-CLK
IC781
OPTIC
TRANSMITTING
D.OUT
4
PL-RELAY
H/P IN
36
SCOR
19
SQ-DATA
32
SQ-CLK
33
CD-DATA
35
CD-CLK
37
SENS
56
HOLD
57
XLT
58
XRST
59
61
DISC-SENS
63
TBL-L
65
TBL-R
68
ENC 3/UP-SW
ENC 2/DISC-LED
69
72
B-TRG
73
A-TRG
74
CAPM-CNT 2
75
CAPM-CNT 1
76
CAP-M-H/L
77
AMS IN
78
TC-MUTE
79
R/PB/PAS
80
NR-ON/OFF
REC-MUTE
81
82
BIAS
83
EQ-H/N
84
PB-A/B
ALC
85
86
B-PLAY-SW
87
A-PLAY-SW
88
A-HALF
89
B-HALF
90
B-SHUT
91
A-SHUT
TC-RELAY
100
20
RDS-INT
21
RDS-DATA
49
ST-MUTE
50
STEREO
51
TUNED
52
ST-CE
53
ST-DOUT
54
ST-DIN
55
ST-CLK
MAIN CONTROL
IC501 (2/2)
STK-POWER
STBY RELAY
PROTECT
FL OFF
HP MUTE
WAKE UP
IIC-CLK
IIC-DATA
XC-IN
XC-OUT
X-OUT
X-IN
POWER
CD-POWER
1
27
42
43
93
18
29
30
32.768kHz
10
11
13
15
2
5
1
27
42
43
93
18
29
30
X501
X502
16MHz
43
42
93
1
27
30
29
18
XB800AV
ONLY
POWER
ECO
HP MUTE
STK POWER
PROTECT
DATA
CLOCK
WAKE UP
I
POWER
SECTION
(Page 29, 31)
J
DISPLAY
SECTION
(Page 33)
+UNREG, 12V
UN–10V
UN+10V
2
IC931
+10V
1 3
REG
IC932
+12V
1 3
REG
FAN DETECTOR
D405-409
IC951
–7V
2 3
REG
Q932
SWITCH
IC901
+7V
1 3
REG
IC911
+5V
1 3
REG
Q914
SWITCH
5
IC921
DETECTOR
Q905
SWITCH
2
SWITCH
SWITCH
2
Q931
Q931
Q901
Q932
SWITCH
Q932
SWITCH
Q902
SWITCH
SWITCH
2
SWITCH
Q901
Q913
FAN SWITCH
Q961, 963
IC933
+7V
1 3
REG
Q902
SWITCH
(LED–7V)
(LED+7V)
(D+5V SW)
(CD D+5V SW)
(CD A+5V SW)
PL A+10V
ST +10V
FAN901
FAN
TC MOTOR+12V
M+7V (UNSW)
7V
A–7.5V
–V BIAS
–7
TC–7V
–7V
A+7.5V
+V BIAS
–7
TC–7V
–7V
LED 5V
LED 5V
D+5V UNSW
5V
AU D+5V
EVER +5V
D+5V (SW)
A+5V (SW)
DR7AV
POWER
SECTION
L
(Page 29, 31)
+5V
1 3
REG
09
• R CH : Same as L ch
Q921
SWITCH
CD D+5V SW
CD A+5V SW
– 27 – – 28 –
HCD-DR7AV/XB800AV
– POWER SECTION – (DR7AV model)
MAIN 1
SECTION
(Page 26)
MAIN 1
SECTION
(Page 26)
MAIN 2
SECTION
(Page 28)
MAIN 2
SECTION
(Page 27)
MAIN 1
SECTION
(Page 26)
G
E
L
I
M
MIX MIC
J801
F-RELAY
L-CH IN
EVER +5V
HP-MUTE
STK-POWER
PROTECT
REAR-L
CENTER
POWER AMP & VOLUME CONTROL
22
THERMAL
SENSOR
13
12
D804
HEAD PHONE
MUTE
Q833
MUTE
DRIVE
Q804
MIC AMP
IC850 (1/2)
IC801
CONTROL
SWITCH
VOLUME
CONTROL
8
MUTE
Q834
MUTE
Q803
6
5
MIC VOLUME
RV850
15
VOLUME
CONTROL
D802, 852
THERMAL
SENSOR
Q831-832
ECHO CONTROL
9
LPF 2 IN
OP 2 IN
11
1
LPF 1 IN
PROTECT
DC AMP
Q433-434
L-CH THERMAL
PROTECT SWITCH
Q801
IC851
LPF 1 OUT
LPF 2 OUT
OP 2 OUT
LATCH
DRIVER
Q432
DISPLAY
SECTION
(Page 33)
MAIN 1
SECTION
(Page 25)
MAIN 2
SECTION
(Page 27)
VF
VF
MIC-SIG
MIC-SIG
J803
HP.SW
TM401
TM402
POWER
TRANSFORMER
T951
PHONES
L
FRONT
R
L
REAR
R
CENTER
MIC LEVEL
RV851
2
8
10
RELAY
DRIVER
Q401-402
RELAY
DRIVER
Q403, 407
LATCH
DRIVER
Q437
PROTECT
SWITCH
Q439
MIC AMP
IC850 (2/2)
RY401
RY402
PROTECT
SWITCH
Q431
R-CH
R-CH
K
C
H
SURROUND
09
MAIN 2
SECTION
(Page 29)
• R CH : Same as L ch
• SIGNAL PATH
: FM
N
PL-RELAY
VF (–35V)
SWITCH
Q904
–35V REG
Q903
+VH
RECT
D831
+UNREG. 12V
UN +10V
UN –10V
AC-L
AC-L
RECT
D833-836
RECT
D841-844
RECT
D832
JW969
JW968
AUS ONLY
TH ONLY
SP, EA
VOLTAGE
SELECTOR
VS901
AC
IN
– 29 – – 30 –
– POWER SECTION – (XB800AV model)
J801
MIX MIC
MIC AMP
IC850 (1/2)
MIC VOLUME
RV850
9
11
1
LPF 2 IN
OP 2 IN
LPF 1 IN
ECHO CONTROL
IC851
LPF 1 OUT
LPF 2 OUT
OP 2 OUT
HCD-DR7AV/XB800AV
DISPLAY
MIC LEVEL
RV851
2
8
10
MIC AMP
IC850 (2/2)
MIC-SIG
MIC-SIG
J803
PHONES
K
C
SECTION
(Page 33)
MAIN 1
SECTION
(Page 25)
MAIN 1
SECTION
(Page 26)
MAIN 1
SECTION
(Page 26)
MAIN 2
SECTION
(Page 28)
MAIN 2
SECTION
(Page 27)
G
E
L
I
F-RELAY
L-CH IN
EVER +5V
HP-MUTE
STK-POWER
PROTECT
XB800AV
POWER AMP & VOLUME CONTROL
22
14
THERMAL
SENSOR
13
12
D804
HEAD PHONE
MUTE
Q833
MUTE
DRIVE
Q804
IC801
VOLUME
CONTROL
8
MUTE
CONTROL
Q834
MUTE
SWITCH
Q803
MAIN 2
HP.SW
RY401
15
XB800AV
7
6
5
VOLUME
CONTROL
D802, 852
THERMAL
SENSOR
Q831-832
PROTECT
DC AMP
Q433-434
L-CH THERMAL
PROTECT SWITCH
Q801
LATCH
DRIVER
Q432
RELAY
DRIVER
Q401-402
+VH
–VH
RELAY
DRIVER
Q403, 407
LATCH
DRIVER
Q437
PROTECT
SWITCH
Q439
RECT
D831
RY402
PROTECT
SWITCH
Q431
+UNREG. 12V
R-CH
+UN 10V
+VL
–VL
TM401
RECT
D833-836
RECT
D841-844
RECT
D832
L
FRONT
R
R-CH
H
TM402
POWER
TRANSFORMER
SECTION
(Page 27)
SURROUND
L
REAR
R
CENTER
T951
JW954
MAIN 1
SECTION
(Page 26)
MAIN 2
SECTION
(Page 27)
09
M
N
• R CH : Same as L ch
• SIGNAL PATH
: FM
POWER
ECO
REAR-L
CENTER
PL-RELAY
SUB-TRANSFORMER
+5.6V
VF
–30V REG
Q903
SWITCH
Q907
3
SWITCH
+5.6V
REG
IC901
POWER
Q902
1
VF
RECT
D902-905
RECT
D907-910
SWITCH
Q904-905
SWITCH
Q906
VF
– 31 – – 32 –
STANDBY
RELAY CONTROL
Q901
T901
STANDBY
RELAY
RY901
AC
IN
HCD-DR7AV/XB800AV
– DISPLAY SECTION –
(Page
F
26)
RESET
DATA
CLOCK
WAKE UP
A –7V
A +7V
(Page
27)
MAIN 1 SECTION
MAIN 2 SECTION
J
(Page 30, 32)
K
POWER SECTION
MAIN 1 SECTION
MIC–SIG
SPE–ANA
D
(Page 26)
D671 – D675
X601
12.5MHz
REC LEVEL
OUTPUT
DISPLAY CONTROL (FOR MIC)
IC603
LINE NF
LINE IN
REC IN
REC NF
REC LEVEL
F06
F05
F04
F02
F01
3
4
6
5
DISPLAY CONTROL
IC601
REMOTE
1
SIRCS
2
JOG A
8
JOG B
3
LED SCK
LED DAT
D-SW
LED SEL
KEY 0
KEY 4
REC LED
LED-EC0
GR-1
GR-15
GR-16
4
5
80
7
9
10
11
15
74
75
77
43
28
27
LED LATCH
70
X IN
X OUT
72
73
RESET
2
78
I
C DATA
2
79
I
C CLK
22
WAKE UP
VOLUME A
VOLUME B
11
12
13
14
16
17
21
20
19
18
17
16
ALL BAND
BPF 4
BPF 3
BPF 2
BPF 1
BPF 0
SEG-1
45 67
DAILY LED
23
GR-3 14, 2
29VF40, 42
CONTROL
RECIEVE
IC602
S702
JOG
ROTARY
ENCODER
S691
6
OPEN
Q601 – Q603
LED POWER
SWITCH
S701
VOLUME
ROTARY
ENCODER
KEY MATRIX
Q605 – Q607
LED DRIVER
Q608 – Q610
DRIVER
14
CLK
15
STB
13
DATA
D604 – D607
D604 – D607
D601 – D603
SERIAL
PARALLEL
CONVERTER
IC604
D611 – D613, D616 – D621,
D623 – D627, D635 – D638
1
P3
5
P5
•
•
7
P7
9
P11
•
•
20
P12
22
P14
P1
17
•
•
P2
19
D700
D631, D632
FLUORESCENT INDICATOR TUBE
09
FL601
– 33 – – 34 –
HCD-DR7AV/XB800AV
2.5V
APPROX 500mVp-p (PLAY)
2.5V
APPROX 200m Vp-p (PLAY)
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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.
¢
•
• C : panel designation.
Note: The components identified by mark ! or dotted
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages and wavefor ms 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 wavefor ms.
• Signal path.
• Abbreviation
: internal component.
line with mark ! are cr itical for safety.
Replace only with part number specified.
under no-signal (detuned) conditions.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage var iations may be noted due to nor mal pro-
duction tolerances.
F : FM
g : VIDEO/MD
E : PB (DECK A)
d : PB (DECK B)
G : REC (DECK B)
J : CD
c : digital out
I : PHONO
EA : Saudi Arabia model.
AUS : Australian model.
SP : Singapore model.
TH : Thai model.
4
W or less unless otherwise
WAVEFORMS
– BD (CD) SECTION –
1
16.9MHz
IC101 ^§ XTAI
2
(PLAY)
IC101 %¡ RF AC
3
IC101 $¡ TE
4
IC101 #ª FE
5
7.5µsec
IC101 @§ MDP
3.1Vp-p
1.2Vp-p
2.4Vp-p
– MAIN (2/5) SECTION –
1
5.5Vp-p
16MHz
IC501 !£ X-OUT
2
5.2Vp-p
32.768kHz
IC501 !¡ XC-OUT
– PANEL FL SECTION –
1
3.4Vp-p
12.5MHz
IC601 &™ X-OUT
For printed wiring boards.
Note:
• X : parts extracted from the component side.
•
•
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor
®
: Through hole.
¢
: internal component.
C
EB
These are omitted
C
Q
These are omitted
EB
– 35 –
– 36 –
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