Sharp XL-HP707 User manual

SERVICE MANUAL
XL-HP707
No. S1403XLHP707/
MICRO COMPONENT SYSTEM
XL-HP707
MODEL
SHARP CORPORATION
CONTENTS
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CHAPTER 1. GENERAL DESCRIPTION
[1] IMPORTANT SERVICE NOTES (FOR
U.S.A. ONLY).................................................1-1
[2] SPECIFICATIONS .........................................1-1
[3] NAMES OF PARTS........................................1-2
CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT...............................................2-1
[2] TEST MODE..................................................2-3
[3] Standard Specification of Stereo System
Error Message Display Contents ...................2-5
CHAPTER 3. MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE
MAIN PARTS .................................................3-1
[2] DISASSEMBLY..............................................3-3
CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM.........................................4-1
CHAPTER 5. CIRCUIT DESCRIPTION
[1] WAVEFORMS OF CD CIRCUIT ....................5-1
[2] VOLTAGE.......................................................5-2
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] NOTES ON SCHEMATIC DIAGRAM............6-1
[2] TYPES OF TRANSISTOR AND LED............6-1
[3] WIRING SIDE OF P.W.BOARD/SCHE-
MATIC DIAGRAM..........................................6-2
CHAPTER 7. FLOWCHART
[1] TROUBLESHOOTING ..................................7-1
CHAPTER 8. OTHERS
[1] FUNCTION TABLE OF IC .............................8-1
[2] FL DISPLAY ................................................8-11
Parts Guide
XL-HP707 Micro Component System consisting of XL-
HP707 (main unit) and CP-HP707 (speaker system).

XL-HP707
1 – 1
AudioXL-HP707Service ManualXLHP707MarketE
CHAPTER 1. GENERAL DESCRIPTION
[1] IMPORTANT SERVICE NOTES (FOR
U.S.A. ONLY)
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the following
safety checks.
1. Inspect all lead dress to make certain that leads are not pinched or
that hardware is not lodged between the chassis and other metal
parts in the audio product.
2. Inspect all protective devices such as insulating materials, cabinet,
terminal board, adjustment and compartment covers or shields,
mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage current in
the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral-
leled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as conduit or electrical
ground connected to earth ground.
* Use a VTVM or VOM with 1000 ohm per volt, or higher, sensitivity
to measure the AC voltage drop across the resistor (See diagram).
* Connect the resistor connection to all exposed metal parts having a
return path to the chassis (antenna, metal cabinet, screw heads,
knobs and control shafts, escutcheon, etc.) and measure the AC
voltage drop across the resistor.
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp. AC.) or
more is excessive and indicates a potential shock hazard which must
be corrected before returning the audio product to the owner.
[2] SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
TEST PROBE
0.15 µ F
1.5k ohms
10W
VTVM
AC SCALE
Specifications for this model are subject to change without
prior notice.
■■
■
■
■
■
General
Amplifier
CD player
Tuner
Cassette deck
Speaker
Power source AC 120 V, 60 Hz
Power
consumption
92 W
Dimensions Width: 7-1/4" (185 mm)
Height: 10-1/4" (260 mm)
Depth: 12" (307 mm)
Weight 14.5 lbs. (6.6 kg)
Output power 100 watts minimum RMS per channel into 6
ohms from 100 Hz to 20 kHz, 10% total har-
monic distortion
Output terminals Speakers: 6 ohms
Headphones: 16 - 50 ohms (recommended:
32 ohms)
Subwoofer pre-out (audio signal):
200 mV/10 k ohms at 70 Hz
Input terminals Video/Auxiliary (audio signal): 500 mV/47 k
ohms
Type 5-disc multi-play compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
pickup
D/A converter 1-bit D/A converter
Frequency
response
20 - 20,000 Hz
Dynamic range 90 dB (1 kHz)
Frequency range FM: 87.5 - 108 MHz
AM: 530 - 1,720 kHz
Frequency
response
50 - 14,000 Hz (normal tape)
Signal/noise ratio 50 dB (recording/playback)
Wow and flutter 0.3 % (WRMS)
Type 2-way type speaker system
2" (5 cm) tweeter
5-7/8" (15 cm) woofer
Maximum input
power
200 W
Rated input power 100 W
Impedance 6ohms
Dimensions Width: 7-1/8" (180 mm)
Height: 10-1/4" (261 mm)
Depth: 10-3/16" (259 mm)
Weight 6.6 lbs. (3.0 kg)/each

XL-HP707
1 – 2
[3] NAMES OF PARTS
■Front panel
1. Disc Trays
2. Timer Indicator
3. Power On/Stand-by Button
4. Clock/Timer Button
5. CD Track Down or Fast Reverse, Tape Fast Wind,
Tuner Preset Down, Time Down Button
6. Tape Reverse Play Button
7. Tape Reverse Mode Select Button
8. Cassette Compartment
9. Headphone Jack
10.DiscTrayOpen/CloseButton
11. Disc Number Select Buttons
12. CD Direct Play Button
13. Illumination Light
14. Volume Control
15. CD Track Up or Fast Forward, Tape Fast Wind,
Tuner Preset Up, Time Up Button
16. Memory/Set Button
17. Equalizer Mode Select Button
18. Extra Bass/Demo Mode Button
19. CD Play or Repeat, Tape Forward Play Button
20. CD or Tape Stop Button
21. CD Button
22. Tuner (Band) Button
23. Tape Button
24. Video/Auxiliary Button
25. Tape Record Pause Button
26. Tuning Up Button
27. Tuning Down Button
1
11
12
14
15
16
17
18
19
20
10
2
3
4
13
9
5
6
7
8
23
24
21 26
27
25
22
Display
1. Disc Number Indicators
2. CD Play Indicator
3. CD Pause Indicator
4. Memory Indicator
5. CD Repeat Play Indicator
6. CD Indicator
7. Extra Bass Indicator
8. Tape Reverse Play Indicator
9. Tape Forward Play Indicator
10. Tape Reverse Mode Indicator
11. FM Stereo Mode Indicator
12. Daily Timer Indicator
13. FM Stereo Receiving Indicator
14. Tape Record Indicator
15. Sleep Indicator
16. Timer Play Indicator
17. Timer Recording Indicator
Rear panel
1. Cooling Fan
2. Speaker Terminals
3. AC Power Cord
4. FM 75 Ohms Antenna Terminal
5. FM Antenna Ground Terminal
6. AM Loop Aerial Jack
7. Video/Auxiliary (Audio Signal) Input Jacks
8. Subwoofer Pre-output Jack
Speaker system
1
4
5
7
6
8
1089
76321 4 5
15 16 17
1211 13
14
3
21. Tweeter
2. Woofer
3. Bass Reflex Duct
4. Speaker Wire
13
4
2
■
■
■

XL-HP707
1 – 3
Remote control
1. Remote Control Transmitter
2. Disc Number Select Buttons
3. CD Track Down or Fast Reverse, Tape Fast Wind,
Tuner Preset Down, Time Down Button
4. Volume Up and Down Buttons
5. Disc Direct Search Buttons
6. Equalizer Mode Select Button
7. Extra Bass Button
8. Power On/Stand-by Button
9. CD Button
10. Tuner (Band) Button
11. Tape Button
12. Video/Auxiliary Button
13. CD Track Up or Fast Forward, Tape Fast Wind,
Tuner Preset Up, Time Up Button
14. Clock/Timer Button
15. CD Random Button
16. CD Clear/Dimmer Button
17. CD Stop Button
18. Tape Reverse Play Button
19. Tape Stop Button
20. Memory/Set Button
21. CD Pause Button
22. CD Play or Repeat Button
23. Tape Forward Play Button
24. Tape Record Pause Button
1
2
5
6
3
4
7
11
12
13
9
10
8
14
15 20
21
23
24
16
17
18
19
22
■

XL-HP707
2 – 1
AudioXL-HP707Service ManualXLHP707MarketE
CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT
1. MECHANISM SECTION
•Driving Force Check
•Torque Check
2. TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
•AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
•FM RF
Signal generator: 1 kHz, 40 kHz dev., FM modulated
•FM IF
Signal generator: 10.7MHz FM modulated
•Tape Speed
3. CD SECTION
•Adjustment
Since this CD system incorporates the following automatic adjust-
ment functions, readjustment is not needed when replacing the
pickup. Therefore, different PWBs and pickups can be combined
freely.
Each time a disc is changed, these adjustments are performed
automatically. Therefore, playback of each disc can be performed
under optimum conditions.
Items adjusted automatically
1) Offset adjustment (The offset voltage between the head amplifier
output and the VREF reference voltage is compensated inside the
IC.)
* Focus offset adjustment
* Tracking offset adjustment
Torque Meter Specified Value
Play: TW-2111 Over 80 g
Torque Meter Specified Value
Play: TW-2111 30 to 80 g.cm
Fast forward: TW-2231 70 to 180 g.cm
Rewind: TW-2231 70 to 180 g.cm
Test Stage Frequency Frequency
Display Setting/ Adjusting
Parts
Instrument
Connection
AM IF 450 kHz 1,602 kHz T351 *1
AM Band
Coverage — 531 kHz (fL): T306 1.1 ± 0.1 V *2
AM Tracking 990 kHz 990 kHz (fL): T303 *1
*1. Input: Antenna Output: TP302
*2. Input: Antenna Output: TP301
Test Stage Frequency Frequency
Display Setting/ Adjusting
Point
Instrument
Connection
FM Band
Coverage — 87.50 kHz T301 (fL): 1.3 ± 0.1 V *1
FM RF 98.00 MHz
(10-30 dB) 98.00 MHz L312 *2
*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker terminal
Test Stage Frequency Frequency
Display Setting/ Adjusting
Point
Instrument
Connection
IF 10.7 MHz 98 MHz T302
(Turn the
core of trans-
former T302
fully counter-
clock wise)
*1
*1. Input: Antenna Output: TP301
Test Tape Adjusting
Point Specified Value Instrument Connection
Normal
speed MTT-111 Variable Resistor in
motor.
3,000 ± 30 Hz Speaker Ter-
minal (Load
resistance: 6
ohms)
Figure 1
Figure 2 ADJUSTMENT POINTS
TAPE MECHANISM
Tape
Motor
Variable Resistor in motor
AM
LOOP
ANTENNA
IC302
T351
T301
IC303
T303
T306
T302
L312
CNP301
SO302
IC301
TP302
TP301
AM TRACKING fL
AM BAND
COVERAGE fL
AM IF
FM RF
FM IF
FM OSC
FM ANTENNA
TERMINAL
TUNER PWB-C
20
R356
C393

XL-HP707
2 – 2
2) Tracking balance adjustment
3) Gain adjustment (The gain is compensated inside the IC so that the
loop gain at the gain crossover frequency will be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
4. CD ERROR CODE DESCRIPTION
* 'CHECKING'
If Error is detected, 'CHECKING' will be displayed instead of 'ER-
CD**'. 'ER-CD**' display will only be displayed when error had been
detected for the 5th times.
Error Explanation
01 When Pickup set inner position, inner switch cannot detect
'ON' level for 10 secs.
10* CAM error. Can't detect CAM switch when CAM is moving.
11* When it detect cam operation error during initialize process.
20* TRAY error. Can't detect TRAY switch when TRAY is mov-
ing.
21* When it detect TRAY operation error during initialize pro-
cess.
22* When it detect invalid TRAY switch during normal operation.
31 When it change to CD function, DSP cannot read initial data.

XL-HP707
2 – 3
[2] TEST MODE
•Setting the test mode
During stand-by mode, press ON/STAND-BY button while pressing
down the button and X-BASS/DEMO button. then, press the CD
button to enter the test mode.
IL isn’t done
OPEN/CLOSE operation is using manual. IL isn’t done
<< >>,<< >>buttons make pick's slide possible. IL isn’t done
to page 2-4
<<PLAY>> key input.
C D T E S T
A
Do TOC IL. Do normal play.
When these following key is input into PLAY key, track num-
ber can be appoint directly.
<<MEMORY>>
key input.
<< 1>> key: Track 4
<< 2>> key: Track 9
<< 3>> key: Track 15
Adjustment result automatically will
display as below for each 2 sec:
a) "FOF_XXXX"
b) "TOF_XXXX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"
––––––––
<<STOP>> key input.
STOP
explanation:
a) Focus off set = "FOF_XXXX"
b)Tracking off set = "TOF_XXXX"
c)Tracking balance = "TBAL_XX"
d)Tracking Gain = "TGAN_XX"
f) Focus Gain = "FGAN_XX"
g) RF level shift = "RFLS_XX"
VOL — Last memory
P.GEQ — FLAT
X-BASS — OFF
To cancel : Power OFF

XL-HP707
2 – 4
Sliding the PICKUP with<< >>, << >> button must only be
in STOP mode.
<<MEMORY>> key input.
Laser ON.
<<MEMORY>> key input.
Tracking OFF play at that specific point.
<<MEMORY>> key input.
Tracking ON play from that specific point.
<<MEMORY>> key input.
Adjustment result automatically will display as below for each 2 sec :
a) "FOF_XXXX"
b) "TOF_XXXX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"
<<STOP>> key input.
STOP
explanation:
a) Focus off set = "FOF_XXXX"
b)Tracking off set = "TOF_XXXX"
c)Tracking balance = "TBAL_XX"
d)Tracking Gain = "TGAN_XX"
f) Focus Gain = "FGAN_XX"
g) RF level shift = "RFLS_XX"
VOL — Last memory
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF
To cancel : Power OFF
A

XL-HP707
2 – 5
[3] Standard Specification of Stereo System Error Message Display Contents
(*) CHECKING:
If CD changer mechanism error is detected, 'CHECKING' will be display instead of 'ER-CD**'. 'ER-CD**' display will only be display when error had
been detected for the 5 th times.
Speaker abnormal detection and +B PROTECTION display
In case speaker abnormal detection or +B PROTECTION had occurred, it can be check by pressing 'POWER', ' ' and 'X-BASS' button. Micro-
Computer version number will displayed as "U******".
Press ‘VIDEO/AUX’ button during version number display and then press ‘POWER’, ‘MEMORY/SET’ and ‘VIDEO/AUX’ button. Display will show "S**
B**". S is referring to speaker abnormal detection and B is referring to +B PROTECTION. ** is in hex valve.
+B PROTECTION is condition when irregular process occur on power supply line.
BEFORE TRANSPORTING THE UNIT
The following process need to be taken after set tapering/parts replacement.
1. Press the ON/STAND-BY button to enter stand-by mode.
2. While pressing down the button and the X-BASS/DEMO button, press the ON/STAND-BY button. The Micro Computer version number will
be displayed as "U******".
3. Press OPEN/CLOSE button until "WAIT"--> "FINISHED" appears.
4. Unplug the AC cord and the unit is ready for transporting.
Error Contents DISPLAY Notes
CD Pickup Mechanism Error. 'ER-CD01' PU-IN SW Detection NG.
CD Changer Mechanism Error. 'ER-CD**' (*) 10: CAM SW Detection NG during normal operation
11: CAM SW Detection NG during initialize process
20:TRAY SW Detection NG during normal operation
21:TRAY SW Detection NG during initialize process
CD DSP Communication Error. 'ER-CD31' DSP COMMUNICATION ERROR.
Focus Not Match/IL Time Over. 'NO DISC'
TUNER PLL Unlock. FM MHz PLL Unlock.
87.50

XL-HP707
3 – 1
AudioXL-HP707Service ManualXLHP707MarketE
CHAPTER 3. MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE
MAIN PARTS
1. TAPE MECHANISM SECTION
Perform steps 1 to 9 of the disassembly method to remove the tape
mechanism.(see page 3-3,3-4)
1.1. How to remove the Record/Playback Head (See Fig. 1)
1. When you remove the screws (A1) x 2 pcs and (A2) x 1 pc., the
record/playback head can be removed.
1.2. How to remove the Pinch Roller (See Fig. 2)
1. Carefully bend the pinch roller pawl in the direction of the arrow
<A>, and remove the pinch roller (B1) x 1 pc., in the direction of the
arrow <B>.
NOTE: When installing the pinch roller, pay attention to the spring
mounting position.
1.3. How to remove the Belt (See Fig. 3)
1. Remove the main belt (C1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (C2) x 1 pc.
1.4. How to remove the Motor (See Fig. 4)
1. Remove the screws (D1) x 2 pcs., to remove the motor.
Figure 1
Figure 2
Figure 3
Figure 4
(A1)x2
Ø2x6mm
(A2)x1
Ø2x9mm
Record/Playback
Head
Erase Head
Clutch Ass'y
Pinch Roller
(B1)x1 <A>
<B>
Pinch
Roller
Pawl
Pull
Main Belt
(C1)x1
FF/REW
Belt
(C2)x1
Motor
FF/REW
Clutch
Flywheel
(D1)x2
Ø2.6x5mm
Motor
Clutch Ass'y

XL-HP707
3 – 2
2. CD MECHANISM SECTION
Perform steps 1 to 4 and 11 to 12 of the disassembly method to
remove the CD mechanism.(see page 3-3,3-4)
2.1. How to remove the Optical Pickup (See Fig. 1)
1. Remove the screws (A1) x 2 pcs and shaft (A2) x 1 pc.
2. Remove the stop washer (A3) x 1 pc and gear (A4) x 1 pc.
3. Remove the optical pickup.
NOTE: After pulling out the optical pickup connector, wrap the tip of it
with conductive aluminium foil or the like to protect the optical
pickup from the static electricity.
2.2. How to remove CD Disc (See Fig. 2~5)
1. When CD is at play position, Rotate reduction gear C clock-wise as
shown in Figure 2 Until disk tray is at stalk position, then rotate fur-
ther to eject the disk tray so that CD can be removed from the tray.
2. In another case, if CD mechanism is at tray No. 1 play position and
to remove CD located in tray No. 3, the procedure is as follows:
If the gear up down board is located at tray No. 1 position, then
rotate gear clock-wise until it is at stalk position. Rotate reduction
gear D (Figure 3) to move the CD mechanism to tray No. 3 position.
This is confirmed by checking the gear up down board position by
the marking as indicated on the main chassis as shown in Figure 4.
Figure 5
CD Disc
CD At play position.
Disc Tray
Guide Tray
CD Disc
CD At stalk position.
Figure 1
Figure 4
(A1) x2
ø2.6 x5mm
CD
Mechanism
Stop Washer
(A3) x1
Optical Pickup
Gear
(A4) x1
Shaft
(A2) x1
Reduction gear D
Figure 3
Up Down
Reduction gear C
Front
Figure 2
Rear
Mark 1
(DISC 1)
(DISC 2)
(DISC 3)
(DISC 4)
(DISC 5)
Gear up down board
Mark 3 Mark 5
Mark 2 Mark 4

XL-HP707
3 – 3
[2] DISASSEMBLY
Note 1:
After removing the connector for the optical pickup from the connector,
wrap the conductive aluminium foil around the front end of the connec-
tor so as to protect the optical pickup from electrostatic damage.
Caution on Disassembly
Follow the below-mentioned notes when disassembling the unit and
reassembling it, to keep it safe and ensure excellent performance:
1) Take cassette tape and compact disc out of the unit.
2) Be sure to remove the power supply plug from the wall outlet
before starting to disassemble the unit.
3) Take off nylon bands or wire holders where they need to be
removed when disassembling the unit. After servicing the unit,
be sure to rearrange the leads where they were before disas-
sembling.
4) Take sufficient care on static electricity of integrated circuits and
other circuits when servicing.
STEP REMOVAL PROCEDURE FIGURE
1 Cabinet 1. Screw..........................(A1) x11 1
2 Rear Panel Top 1. Screw............................(B1) x2 1
3 CD Changer unit 1. Hook.............................(C1) x2
2. Socket..........................(C2) x1
3. Flat Cable.....................(C3) x1
2
4 Rear Panel Bot-
tom 1. Screw...........................(D1) x9 2
5 Front Panel 1. Screw...........................(E1) x3
2. Flat Cable....................(E2) x2
3. Socket..........................(E3) x1
4. Hook............................(E4) x2
2,3
3
6 Turner PWB 1. Screw............................(F1) x1
2. Socket..........................(F2) x1 2 3
7 Main PWB 1. Screw...........................(G1) x2
2. Socket.........................(G2) x4 2,4 4
8 Power PWB 1. Screw...........................(H1) x4 4
9 Terminal PWB 1. Screw............................(J1) x1 4
10 Display PWB 1. Knob.............................(K1) x1
2. Screw...........................(K2) x 8
3. Flat Cable....................(K3) x 1
5
11 Tape Mechanism 1. Screw...........................(L1) x 4 5
12 Headphones PWB 1. Screw..........................(M1) x 1 5
11 CD Servo PWB
(Note 1) 1. Screw...........................(N1) x2 2. Flat Cable...................(N2) x 2
3. Socket..........................(N3) x1
6
12 CD Mechanism 1. Screw...........................(P1) x4
2. Screw...........................(P2) x4 6 7
Figure 1
Figure 2
Figure 3
(A1) x3
ø3x8mm
(A1) x1
ø3x8mm
(A1) x1
ø3x8mm
(A1) x2
ø3x8mm
(B1) x2
ø3x10mm
(A1) x2
ø3x8mm
(A1) x2
ø3x8mm
Front Panel
Cabinet
Rear
Panel Bottom
Rear
Panel Top
(D1) x9
ø3x8mm
(F1) x1
ø3x8mm
(G1) x1
ø3x10mm
(E1) x1
ø3x10mm
(E2) x1
(C2) x1
(C3) x1
Front Panel
Rear
Panel Bottom
Hook
(C1)x1
Hook
(C1)x1
Pull
Pull
CD Changer
Unit
Main PWB
Headphones
PWB
CD Servo PWB
(F2) x1
(E1) x2
ø3x10mm
Front Panel
Turner PWB
Main PWB
(E2) x1
Pull
(E3) x1
Tape
Mechanism
Pull
Hook
(E4)x1
Hook
(E4)x1

XL-HP707
3 – 4
Figure 4
Figure 5
Figure 6
(G1) x1
ø3x6mm
(H1) x4
ø4x6mm
(J1) x1
ø3x6mm
(G2) x2
(G2) x2
Terminal PWB
Main PWB
Power PWB
(K2) x8
ø2.6x8mm
(L1) x4
ø3x10mm
(M1) x1
ø3x10mm
(K3) x1
(K1) x1
Front Panel
Headphones
PWB
Cassette
Holder
Display PWB
Tape
Mechanism
(N1) x2
ø3x10mm
(N2) x2
(N3) x1
(P1) x2
ø3x10mm
(P1) x2
ø3x10mm
CD Changer
Unit
CD Servo PWB
Figure 7
STEP REMOVAL PROCEDURE FIGURE
Woofer/
Tweeter 1. Net Frame(A1) x1 2. Catching Holder(A2) x4
3. Screw(A3) x4
4. Front Panel(A4) x1
5. Screw(A5) x6
8
Figure 8
(P2) x4
ø2.6x10mm
CD Changer
Unit
CD Mechanism
Net Frame
(A1)x1
Screwdriver
(A5)x2
ø3.5x12mm
(A3)x2
ø3.5x16mm
(A2)x2
(A2)x2
(A3)x2
ø3.5x16mm
(A5)x4
ø3.5x12mm Woofer
Front Panel
(A4)x1
Tweeter

XL-HP707
4 – 1
AudioXL-HP707Service ManualXLHP707MarketE
CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM
+B5
+B5 +B5 +B10
+B8(D_+5V)
+B9(SW_+5V)
+B_PROTECT
+B7(A_+5V)
VIDEO/AUX
R
L
R
L
ATT
-20dB
Q108
REC/PLAY
CLK
CE
DI
L
R
BIAS
MUTING
AC BIAS
L
L
R
R
R
L
TAPE
TUNER
CD
PB
CNP2
FROM CD SECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q113
Q114
Q112
SWITCHING
OSC
BIAS
Q105
Q106
REC /P.B. HEAD
TAPE R-CH
L-CH
AUDIO PROCESSOR
LC75341
R
L
REC
R
L
RREC
LREC
SWITCHING L(TA)
R(TA)
/PLAYBACK AMP.
PLAYBACK AND RECORD
AN7345K
Q107
+B5
UN
SYSTEM
MUTE
17
3
1
2
2
7
18
4
21
13
16
9
23
2
21
13
12
14
16
11
1
4
9
10
15
3
24
12
15
11
718 8 23
+B5
+B4
H/N
P.B
REC
A_+10V
LD_+8V
FM/AM OUT
R
L
FM/AM
MPXIN
MO/ST
VCO
FM
DET
FM+B
GND
AM IF
AM MIX
OUT
Q601
Q602 Q604
Q603
IC601
JK690
CNS2
Q104
Q101-
IC101
L103
Q111 Q110
Q109
Q851
FM+B
+B5
CLK
+B5
AM IF
OSC
BUFF
10.7 MHz
450 kHz
DO DI CE
MO/ST
SWITCHING
FM/AM
IC302
LC72131
PLL(TUNER)
STEREO
AM RF IN
AM OSC IN AM OSC OUT
FM
Q360
Q361
VT
OSC
X352
4.5 MHZ
AM BAND
COVERAGE
AM
TRACKING
FM RF
FM OSC
FM IF
T303 T306
L312 T301
X351
456 kHz
ZD351
5.1V
CF351
IC303
LA1832S
FM IF DET.
FM MPX./AM IF
CF352
T351
CF302T302
Q302
BF301
B.P.F
910
18
5413
21
7
98517
6
21
21
20 22 11
17
1615
13
14
12 20
15
162324
4
7
+B5
384
1
9
6
57
AM LOOP
ANTENNA
FM ANTENNA
TERMINAL
CNP301
SO302
IC301
TA7358AP
FM FRONT END
+B6
2
1
Figure 4-1 BLOCK DIAGRAM (1/3)

XL-HP707
4 – 2
+B10
+B10
+B10
+B10
+B3
+B10
0
+B3
AN80T53
MULTI
REGULATOR
235671 4
+B4(8V)
2A 125V
2A 125V
4A 125V
4A 125V
D842-D845
POWER
TRANSFORMER
RELAY
DRIVER
AC_RLY
P_IN
AC_RLY
T_SOL
T_MOTOR
VOL_JOG
PROTECT
+B8(D_5V)
+B7(A_5V)
+B7(A_5V)
+B9(SW_+5V)
+B_PROTECT
13V SW VCC GND 5.1V 8.5V 10V
VL+
VL-
GND
SMUTE
TIME LED
SP_RLY
T_REC/PLAY T_BIAS
VLOAD
VOL_LED
P_IN
AC 120V,60 Hz
SUPPLY CORD
AC POWER
SP DET
-VF
T.F
VDD
TRANSFORMER
POWER
REGULATOR
VOLTAGE
UNSW_5.6V AN78L05
VOLTAGE
REGULATOR
VR701
VOLUME
KEY
ASS'Y
MECHANISM
TAPE
DRIVER
4A 125V
R-OUT
L-OUT
STK412-490
POWER AMP.
L
R
VL-
VH-
VL+
VH+
VF1
VF2
M971
RESET
4.19403MHz
REMOTE SENSOR
VDD -20dBATT
+B10
+B10 LED701
LED708
LED707
+B5
VDD
+B3
FAN MOTOR
FL DISPLAY
CE CLK DI DO
TO CD SECTION
RESET
AVDD
REMOCON
HEADPHONES
SUB WOOFER
PRE-OUT
SPEAKER TERMINAL
M
SYSTEM
MUTE
8
11
6
1
14
18
7
48
32 413128
5
2
4443
242115121176
10
17 18 19 2034
2121 4445
78
69
80
58
83
84
2
3
1
31
30
29
47
53
56
41
42
45
5
79
36
38 46 254059 13
33
34
39
12 16
100
(SUB)
(MAIN)
MOTOR/
DRIVER
SOLENOID
A
_+10V
D_+8V
SW701-SW705
SW709-SW728
SYSTEM MICROCOMPUTER
IXA002AW
(Serial No.31200001~402XXXXX)
IXA007AW
(Serial No.402XXXXX)
IXA020AW
(Serial No.402XXXXX~)
FL701
RX701
Q906
XL700
Q701,702
Q712~715
Q904
Q901
IC901
F802
Q604
Q603
IC854
Q841
Q
851
Q801
F804
F803
IC851
D802
D801
F801
F805
PT801
JK953
JK701
SO901
RL914
Q905
Q711
Q710
Q703
RL841
RELAY
PT841
RELAY
IC701
F
Figure 4-2 BLOCK DIAGRAM (2/3)

XL-HP707
4 – 3
FOCUS/TRACKING/
SPIN/SLED DRIVER
+B7
RCHO
LRVSS
LCHO
LVDD
RVDD
GND
GND
TR–
TR+
TR+
FO+ FO+
FO–
F C B A E VCC
PICKUP UNIT
TR–
VREF
MO_SPEED
CNP3
CNP5
CNP4 CNB1
CNP2
Q1
Q2
LDD VREF LDS DVDD XVDD AVDD1 AVDD2 DVDD VVDD
A
+5V
A
+5V
FIN EIN CIN AIN DIN BIN
+B8
+B8
– – + +
MO_SPEED/CONT6
MOT_A-/CONT4
TR– TR+ CAM– CAM+ +5V PHOTO DISC CLAMP TRAY_SW1
TRAY_SW2 D_GND
CD_RES
TRAY_SW2
PHOTO
D_GND
+5V A_+5V
+B4
+B8
+B8
CONT1
0.82µH
CD
DIGITAL SIGNAL PROCESSOR
LC78648E
IC1
MOT_A+/CONT5
MO_B+/CONT3
MO_B-/CONT2
SLDO
SPDO
FDO
TDO
XIN
XOUT
DRF
*RES
*WRQ
DO
DI
CL
CE
FROM DISPLAY SECTION
TO MAIN SECTION
D_GND
16.9344 MHz
XL1
+B4
R-CH
AGND L-CH
DGND
D_+5V
WRQ DRF CE DO DI CL CLAMP DISC
TRAY_SW1
+8V
M
M
34 33810 3231 2421
22 23 19 20
5
1
2
35 36
3
4 5 6
30 26
7
25 27
9
28
11 13 15 17
48 47 79 61 56 55 54 154046 28 25
19 20
26
13 49
1
27 60
80
7
8
9
10 15 14
36 21 22 23 24
65 64 66 67 68 63 62 45 41 42 43 44
1 2 3 5 4 6 7 8
1 2 3 4 5 6
13 12 11 10
9 8 7
14
1 2 3 4 5 6 7 8 9
10
11
1 2 3 4 5 6 7 8 9
10 11
6 4 3 1
35 36 70 74 75
2
VCONT6 VCONT5
VREFIN
SVCC
PVCC1
VO4– VO3+ VO3– VO4+
PGND1
SGND
PGND2
VO1– VO1+ VO2– VO2+
VIN2 VIN1 VIN4 VIN3
VO6+
VO6–
VO5+
VO5–
LA6261
IC2
REV5
FWD5
REV6
FWD6
PVCC2
SLED
MOTOR
SPINDLE
MOTOR
PICKUP-IN
–
+
–
+M
MTRAY
MOTOR
DISC
CLAMP
TRAY SW1
TRAY SW2
MAIN CAM
MOTOR
PHOTO INTERRUPTER
SW1A
M1A
M2A M1
RX1
SW3
SW2
SW1
SW4
M2
Figure 4-3 BLOCK DIAGRAM (3/3)

XL-HP707
5 – 1
AudioXL-HP707Service ManualXLHP707MarketE
CHAPTER 5. CIRCUIT DESCRIPTION
[1] WAVEFORMS OF CD CIRCUIT
T
FDO
TDO
Stopped
CH1=500 mV
DC 10:1
CH3=500 mV
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.000 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH1
v/DIV
500 mV
1IC1 21
2IC1 22
T
FDO
DRF
TE
Stopped
CH1=500 mV
DC 10:1
CH2=10 V
DC 10:1
CH3=1 V
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
-3 div -1 div 0 div +1 div +3 div
CH Position To
CH2
Position
0.20 div
1IC1 21
3IC1 68
4IC1 17
Vp-p=1.0 V~1.3 V
0.5 mV/div,0.5 µsec/div
5IC1 4
T
T
TE
DRF
Stopped
CH1=10 V
DC 10:1
CH2=1 V
DC 10:1
100 ms/div
(100 ms/div)
NORM:100 kS/s
2
1
=Record Length=
Smoothing : ON CH1 : 0.0 V
CH2 : 0.00 V
Main : 100 K
Zoom : 2 K
Mode : NORMAL
Type : EDGE CH1
Delay : 2.924 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter= =Offset=
3IC1 68
4IC1 17
T
T
FDO
SPDO
Stopped
CH1=200 mV
DC 10:1
CH2=500 mV
DC 10:1
500 ms/div
1999/04/07 09:51:15
(500 ms/div)
NORM:20 kS/s
2
1
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.000 V
Main : 100 K
Zoom : 2 K
Mode : NORMAL
Type : EDGE CH2
Delay : 2.924 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
1IC1 21
6IC1 24
T
FDO
PDO2
PDO1
Stopped
CH1=500 mV
DC 10:1
CH3=1 V
DC 10:1
CH4=1 V
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
4
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH2
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH1
v/DIV
500 mV
1999/04/05 17:33:17
1IC1 21
7IC1 76
8IC1 77
T
T
DOUT
Stopped
CH1=2 V
DC 10:1
500 ns/div
1999/04/07 09:25:28
(500 ns/div)
NORM:200 MS/s
1
=Record Length=
Smoothing : ON CH1 : 0.00 V
CH2 : 0.00 V
Main : 1 K
Zoom : 100
Mode : NORMAL
Type : EDGE CH1
Delay : 2.887 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
9IC1 39
T
T
DATA
DATACK
LRSY
Stopped
CH1=2 V
DC 10:1
CH2=2 V
DC 10:1
CH3=2 V
DC 10:1
5 µs/div
(5 µs/div)
NORM:100 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.00 V
CH2 : 0.00 V
Main : 5 K
Zoom : 100
Mode : AUTO
Type : EDGE CH3
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH3
v/DIV
2V
1999/04/05 20:50:17
10 IC1 57
IC1 58
IC1 59
11
12

XL-HP707
5 – 2
[2] VOLTAGE
3.26 V
1.60V
1.60 V
0.60 V
1.68 V
3.04 V
1.67 V
1.67 V
1.67 V
1.67 V
1.46 V
1.64 V
1.67 V
1.67 V
1.67 V
1.54 V
1.54 V
1.68 V
3.22 V
0V
1.63 V
1.63 V
1.63 V
1.63 V
0V
3.27 V
3.27 V
0V
3.27 V
0V
0V
1.64 V
1.64 V
3.27 V
0V
0V
0.87 V
0V
0V
0V
3.63 V
0.85 V
0V
1.83 V
3.63 V
0V
1.54 V
1.54 V
1.47 V
3.27 V
0V
0V
0V
0V
0V
0V
0V
0V
0V
3.27 V
0V
0V
4.76 V
0V
5.07 V
5.07 V
4.74 V
2.54 V
0V
4.11 V
2.40 V
0V
0V
4.74 V
4.74 V
1.50 V
0.90 V
1.15 V
0V
3.27 V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
PIN
NO. VOLTAGE
IC1
2.04 V
2.14 V
2.04 V
2.14 V
2.04 V
2.15 V
0V
4.24 V
4.92 V
3.26 V
1.64 V
1.67 V
1.64 V
1.67 V
1.60 V
1.67 V
1.64 V
1.67 V
4.56 V
4.56 V
4.28 V
0V
0V
3.13 V
1.67 V
0V
4.92 V
8.51 V
4.92 V
0V
1.87 V
1.87 V
0V
0V
2.05 V
2.14 V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
PIN
NO. VOLTAGE
IC2
0V
0V
0.59 V
2.01 V
0V
0V
0V
0.60 V
3.43 V
3.41 V
0V
0V
6.92 V
4.15 V
0V
3.43 V
0.60 V
0V
0V
0.30 V
2.02 V
0.60 V
0V
0V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PIN
NO. VOLTAGE
IC101
2.12 V
5.09 V
2.12 V
2.11 V
0V
5.10 V
5.17 V
3.54 V
5.09 V
4.40 V
1.94 V
1.20 V
2.21 V
1.20 V
1.22 V
2.10 V
0V
1.41 V
2.11 V
1.10 V
2.09 V
2.09 V
5.10 V
3.59 V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PIN
NO. VOLTAGE
IC303
0V
0V
0V
5.01 V
4.90 V
4.92 V
4.92 V
5.01 V
4.93 V
4.93 V
4.94 V
4.95 V
4.95 V
4.94 V
4.95 V
4.93 V
5.01 V
4.93 V
4.93 V
4.91 V
5.01 V
5.00 V
10.02 V
0V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PIN
NO. VOLTAGE
IC601
2.54 V
0V
0V
0V
0V
5.11 V
9.98 V
4.73 V
0V
0V
5.17 V
0V
5.17 V
0V
0V
2.55 V
5.19 V
0V
0V
9.99 V
0V
2.53 V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
PIN
NO. VOLTAGE
IC302
0V
0V
0.33 V
0V
0V
0.33 V
0.29 V
0.33 V
0.33 V
1
2
3
4
5
6
7
8
9
PIN
NO. VOLTAGE
IC301
5.09 V
12.96 V
20.68 V
0V
19.62 V
10.05 V
8.51 V
1
2
3
4
5
6
7
PIN
NO. VOLTAGE
IC851
5.70 V
0.56 V
14.60 V
1
2
3
PIN
NO. VOLTAGE
IC854
4.75 V
4.66 V
0V
4.70 V
4.73 V
4.73 V
2.09 V
0V
0V
4.94 V
2.30 V
2.09 V
0V
0V
2.11 V
4.75 V
0V
0V
5.11 V
0V
0V
4.75 V
0V
2.06 V
0V
5.07 V
0V
5.02 V
5.02 V
1.13 V
5.02 V
5.02 V
5.02 V
4.76 V
5.03 V
3.60 V
5.07 V
5.02 V
4.91 V
0V
1.98 V
4.41 V
12.93 V
12.93 V
0V
4.75 V
4.52 V
4.63 V
0V
0V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
PIN
NO. VOLTAGE
IC701
-0.68 V
-0.64 V
5.07 V
5.07 V
5.07 V
5.07 V
-29.35 V
4.73 V
0V
-0.75 V
-0.77 V
-0.78 V
-0.77 V
-0.78 V
-0.79 V
-0.80 V
-0.81 V
-0.80 V
-29.36 V
-29.41 V
-29.38 V
-29.33 V
-29.30 V
-19.00 V
-26.70 V
-24.11 V
-21.26 V
-21.23 V
-29.58 V
-26.74 V
-14.25 V
-26.93 V
-19.31 V
-25.89 V
-21.82 V
-29.40 V
-21.81 V
-16.54 V
-28.95 V
-26.93 V
-26.91 V
-26.95 V
-26.86 V
-26.84 V
-26.86 V
-28.84 V
-26.66 V
-26.66 V
-28.85 V
-26.93 V
PIN
NO. VOLTAGE
51
64
63
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
62
61
60
59
58
57
56
55
54
53
52
85
84
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
83
82
81
3.25 V
0V
3.20 V
E
C
B
PIN
NO. VOLTAGE
Q1
4.86 V
3.25 V
4.19 V
E
C
B
PIN
NO. VOLTAGE
Q2
2.11 V
0V
0V
E
C
B
PIN
NO. VOLTAGE
Q302
9.80 V
0V
9.80 V
E
C
B
PIN
NO. VOLTAGE
Q360
0V
0V
0.70 V
E
C
B
PIN
NO. VOLTAGE
Q601
0V
0V
0.70 V
E
C
B
PIN
NO. VOLTAGE
Q602
0V
0V
0.70 V
E
C
B
PIN
NO. VOLTAGE
Q603
0V
0V
0.70 V
E
C
B
PIN
NO. VOLTAGE
Q604
12.80 V
0V
12.80 V
E
C
B
PIN
NO. VOLTAGE
Q701
12.80 V
0V
12.80 V
E
C
B
PIN
NO. VOLTAGE
Q702
0V
4.86 V
0V
1
2
3
PIN
NO. VOLTAGE
Q703
9.82 V
9.70 V
0.86 V
1
2
3
PIN
NO. VOLTAGE
Q711
0V
4.83 V
0V
E
C
B
PIN
NO. VOLTAGE
Q712
12.80 V
0V
12.80 V
E
C
B
PIN
NO. VOLTAGE
Q713
0V
4.84 V
0V
E
C
B
PIN
NO. VOLTAGE
Q714
12.80 V
0V
12.80 V
E
C
B
PIN
NO. VOLTAGE
Q715
0V
4.93 V
0V
1
2
3
PIN
NO. VOLTAGE
Q719
0V
0V
0.80 V
E
C
B
PIN
NO. VOLTAGE
Q841
0V
4.84 V
0V
E
C
B
PIN
NO. VOLTAGE
Q901
0V
4.84 V
0V
E
C
B
PIN
NO. VOLTAGE
Q902
0V
4.84 V
0V
E
C
B
PIN
NO. VOLTAGE
Q903
0V
4.84 V
0V
E
C
B
PIN
NO. VOLTAGE
Q904
-28.8 V
-41.8 V
-29.4 V
E
C
B
PIN
NO. VOLTAGE
Q801
0V
4.98 V
0V
E
C
B
PIN
NO. VOLTAGE
Q908
0V
9.77 V
0V
1
2
3
PIN
NO. VOLTAGE
Q110
51.60 V
24.08 V
11.93 V
-12.02 V
-24.15 V
-51.90 V
0V
0V
0V
0V
0V
-50.40 V
50.60 V
-0.15 V
-0.15 V
-49.50 V
-0.15 V
-0.15 V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PIN
NO. VOLTAGE
IC901

XL-HP707
6 – 1
AudioXL-HP707Service ManualXLHP707MarketE
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] NOTES ON SCHEMATIC DIAGRAM
•Resistor:
To differentiate the units of resistors, such symbol as K and M are
used: the symbol K means 1000 ohm and the symbol M means
1000 kohm and the resistor without any symbol is ohm-type resis-
tor. Besides, the one with “Fusible” is a fuse type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this symbol P
means pico-farad and the unit of the capacitor without such a sym-
bol is microfarad. As to electrolytic capacitor, the expression
“capacitance/withstand voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
• Schematic diagram and Wiring Side of P.W.Board for this model
are subject to change for improvement without prior notice.
• The indicated voltage in each section is the one measured by Digi-
tal Multimeter between such a section and the chassis with no sig-
nal given.
1. In the tuner section,
indicates AM
indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
• Parts marked with “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these parts
with specified ones for maintaining the safety and performance of
the set.
[2] TYPES OF TRANSISTOR AND LED
REF. NO DESCRIPTION POSITION
SW1 CLAMP ON—OFF
SW1A PICKUP IN ON—OFF
SW2 TRAY SW1 ON—OFF
SW3 TRAY SW2 ON—OFF
SW4 DISC ON—OFF
SW701 ON/STAND-BY ON—OFF
SW702 CLOCK/TIMER ON—OFF
SW703 REVERSE MODE ON—OFF
SW704 REVERSE PLAY ON—OFF
SW705 PRESET DOWN ON—OFF
SW709 CD ON—OFF
SW710 TUNER (BAND) ON—OFF
SW711 VIDEO/AUX ON—OFF
SW712 TAPE ON—OFF
SW713 REC/PAUSE ON—OFF
SW714 TUNING/TIME UP ON—OFF
SW715 TUNING/TIME DOWN ON—OFF
SW716 STOP ON—OFF
SW717 PLAY ON—OFF
SW718 PRESET UP ON—OFF
SW719 X-BASS/DEMO ON—OFF
SW720 EQUALIZER ON—OFF
SW721 MEMORY/SET ON—OFF
SW722 DIRECT PLAY ON—OFF
SW723 DISC 1 ON—OFF
SW724 DISC 2 ON—OFF
SW725 DISC 3 ON—OFF
SW726 DISC 4 ON—OFF
SW727 DISC 5 ON—OFF
SW728 OPEN/CLOSE ON—OFF
REF. NO DESCRIPTION POSITION
(1) (2) (3)
(S) (G) (D)
EC B
FRONT
VIEW
KRC102 S
KRC104 S
KRA107 S
KTA1504 Y
KTA1271 Y
KTA1273 Y
KTA1274 Y
SVC347S
SVC230C
FRONT
VIEW
KTA1504 GR
KTC3199 GR
KTC3200 GR
KTC3875 GR
KTC3203 Y
KTC3194 Y

XL-HP707
6 – 2
[3] WIRING SIDE OF P.W.BOARD/SCHEMATIC DIAGRAM
Figure 6-2 SCHEMATIC DIAGRAM (1/10)
NOTES ON SCHEMATIC DIAGRAM can be found on page 6-1
A
B
C
D
E
F
G
H
123456
0.7V
0V
0V
0V
0.7V 0V
0V
0V
0V
0V
0V 0.7V
0.7V 0V
0V
0V
9.3V 8.6V
9.3V
0V 3.4V
0V
0V
3.4V
0V
0.7V 0.7V 0
V
TAPE MECHANISM
Ass'y(213)
6-11 11 - E
CNP2
TO CD SERVO PWB
CD SIGNAL
12
11
10
9
8
7
6
5
4
3
2
1
24 23 22 21 20
54321
16171819
6789
131415
10 11 12
REC_R
SPARE
D_GND
LD+8V
+
B
+B
+B
+B
A-5V
D_5V +B
+B
+B
CD_GND
L-CH
A_GND
R-CH
2
3
1
6
8
7
5
4
8
9
7
6
5
4
3
2
1
LD_+8V
CD_D_GND
A_+5V
D_+5V
CD_GND
CD_A_GND
TO MAIN PWB(2/2)
6-4 1 - E~H
A_GND
M_GND
ERASE
T2_R2
T2_R1
T2_L1
T2_L2
ERASE HEAD
PLAYBACK HEAD
RECORD/
R-CH
L-CH
6
3
7
8
5
4
1
2
6
3
5
4
1
2
6
3
5
4
1
2
MAIN PWB-A1(1/2)
R-CH
L-CH
1
2
3
7
23
11
10
26
24
A_GND
TO MAIN PWB(1/3)
6-4 1 - D
– +
– +
– +
– +
– +
– +
–
+
–
+
CCB
INTERFACE
AUX
DECK
TUNER
CD
112K 56K
112K 56K
Hich=CHROME
–
–
+
+
Hich=T1
+
–+
–
Nor/CrO2
RIPPLE
ALC ALC
VCC
LSEL0
R
1
R
2
R
3
R
4
RSEL
0
RI
N
RTR
E
RBAS
S
ROU
T
VRE
F
VD
D
CL
K
L1
L2
L3
L4
LIN
LTRE
LBASS
LOUT
VSS
CE
DI
2
2
1
1
3
3
PLAYBACK SIGNAL
RECORD SIGNAL
HEAD PLATE
BLOCK
2.2K
180P
3.3K
KTC3200 GR
KTC3200 GR 47K
4.7K
KTC3875 GR
0.0015
15K
12K
6.8K
47/25
330P
1K
100/16
56
560P
0.033
100K 3.9K
12K
56
330P
1K
100/16
560P
47/25
6.8K
0.033
100K 3.9K
1.5K
270P
4.7K
68K
100
22/16 220/10
10K
22/16
0.0033
47/25
5.6K
0.022
LC75341
AUDIO PROCESSOR
AN7345K
220P
220P
1K
1K
3.3/50
0.022
22/16
5.6K
4.7K
270P
1.5K
100
0.022
10K
47/25
0.0033
180P KTC3200 GR
3.3K
2.2K
KTC3200 GR
47K
4.7K
KTC3875 GR
0.0015
100/16
4.7K
KRC104 S
15K
KRC104 S
10K10K
KTA1504 GR
150
22K
22K
22/50
2.2/50
0
1.2k
0.0022
2
1/50
1/50
1/50
3.9K
0
0.15
0.12
1/50
0.0022
1/50
10K
4.7/50
1/50
330
330
2.2K
2.2K
390
2.2K
2.7K
2.2K
KTC3875 GR
KTC3875 GR
KTC3875 GR
390
KTC3875 GR
2.7K
220K
10K10K
KTC3
KTC3875 GR
BI601
CNS2
BI102
CNS102
R103
C103
R105
Q103
Q101 R107
R109
Q105
C105
R111
R121
R123
C117
C109
R113
C111
R115
C115
C113
R117 R119
R122
R116
C110
R114
C112
C116
C118
R124
C114
R118 R120
R130
C124
R126
R150
R132
C133 C134
R134
C130
C132
R128
C128
IC601
IC101
C651
C652
R601
R602
C143
C121
C125
R129
R127
C123
R131
R133
C127
R135
C131
C129
C104 Q104
R106
R104
Q102
R108
R110
Q106
C106
C141
Q114
R112
Q113
R147
R146
Q112
R149
R621
R620
C640
C639
R645
R609
C625
C
C621
C619
C617
R607
R05
C605
C607
C615
C613
C611
C609
R605
C623
R619
R618
R611
R610
R613
R617
R615
R616
Q604
Q603
Q601
R612
Q602
R614
R136
R139
R138
Q
1
Q108
R148
C126
FM SIGNAL
AUX SIGNAL