This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause
cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 – Proposition 65
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must
be of identical designation.
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces
de remplacement doivent avoir la même désignation.
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground (water
pipe, conduit, etc.) by connecting a leakage current tester
such as Simpson Model 229-2 or equivalent between the
earth ground and all exposed metal parts of the appliance
(input/output terminals, screwheads, metal overlays, control
shaft, etc.). Plug the AC line cord of the appliance directly
into a 120V AC 60Hz outlet and turn the AC power switch
on. Any current measured must not exceed 0.5mA.
Reading should
not be above
0.5mA
Earth
ground
Device
under
test
Also test with
plug reversed
(Using AC adapter
plug as required)
Leakage
current
tester
Test all
exposed metal
surfaces
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE APPLIANCE TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are
often not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical components having such features are identified
by marking with a
in this Service Manual.
The use of a substitute replacement component which does
not have the same safety characteristics as the PIONEER
recommended replacement one, shown in the parts list in
this Service Manual, may create shock, fire, or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current PIONEER Service
Manual. A subscription to, or additional copies of, PIONEER
Service Manual may be obtained at a nominal charge from
PIONEER.
on the schematics and on the parts list
AC Leakage Test
2
Page 3
XR-A670, XR-A370
IMPORTANT
THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS 1.
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.
LASER DIODE CHARACTERISTICS
MAXIMUM OUTPUT POWER: 5 mW
WAVELENGTH: 780 nm to 785 nm
LABEL CHECK (For MYXJ and NVXJ Types)
NVXJ Type
MYXJ Type
Printed on the Rear Panel
MYXJ Type
Additional Laser Caution
1.Laser Interlock Mechanism
The position of the switch (S9501) for detecting loading
state is detected by the system microprocessor, and
the design prevents laser diode oscillation when the
switch (S9501) is pressed physically.
Thus, the interlock will no longer function if the switch (S9501)
is released physically and deliberatery.
The interlock also does not function in the test mode ∗.
Laser diode oscillation will continue, if pin 1 of
CXA1821M (IC8101) on the CD ASSY mounted on the
$M Loading Mechanism assembly is connected to GND,
or else the terminals of Q8101 are shorted to each other
(fault condition).
2.When the cover is opened, close viewing of the objective
lens with the naked eye will cause exposure to a Class
1 laser beam.
∗
: Refer to page 66.
3
Page 4
XR-A670, XR-A370
2. EXPLODED VIEWS AND PARTS LIST
NOTES:• Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
2.1 PACKING
4
S
L
E
E
P
.B
POWER
A
S
S
D
I
S
P
L
A
Y
A
U
X
Except
NVXJ Type
3
6
11
13
14
The mark found on some component parts indicates the importance of the safety factor of the part.
•
Therefore, when replacing, be sure to use parts of identical designation.
Screws adjacent to mark on the product are used for disassembly.
•
V
K
O
A
L
R
A
O
K
E
S
D
F
IS
C
C
P
D
C
IS
L
C
E
A
R
D
P
IS
G
C
M
R
E
P
E
A
T
R
A
N
D
O
M
STATION
R
E
M
O
T
E
C
O
N
T
M
R
O
O
L
N
U
O
N
IT
C
U
B
-X
A
N
R
0
D
2
5
9(1/2)
1
5
12
17
18
1
2
16
8(1/2)
NVXJ Type
Only
9(2/2)
7
8(2/2)
(1) PACKING PARTS LIST
Mark No. Description Part No.
1 Power CordSee Contrast table (2)
2 FM AntennaSee Contrast table (2)
3 AM Loop AntennaXTB3001
4 Remote Control UnitXZN3067
(CU-XR060)
5 Battery CoverXZN3065
NSP6 Dry Cell Battery (R6P, AA)VEM-013
7 Packing SheetAHG7049
8 Front PadXHA3013
9 Rear PadXHA3014
10 Packing CaseSee Contrast table (2)
NSP11 Warranty CardSee Contrast table (2)
12 Polyethylene BagZ21-038
(0.03 × 230 × 340)
13 Operating InstructionsSee Contrast table (2)
(English/French)
14 Operating InstructionsSee Contrast table (2)
(Italian/Dutch/German)
15 Operating InstructionsSee Contrast table (2)
(Portuguese/Swedish/Spanish)
16 Sub PadXHA3017
15
10
NSP18 Polyethylene BagSee Contrast table (2)
XR-A670/MYXJ and
XR-A370/MYXJ Only
(2) CONTRAST TABLE
XR-A670/MYXJ, NVXJ, KUCXJ, XR-A370/MYXJ, NVXJ and KUCXJ are constructed the same except for the following :
1. Part numbers in PCB diagrams match those in the schematic
diagrams.
2. A comparison between the main parts of PCB and schematic
diagrams is shown below.
Symbol In PCB
Diagrams
BCE
BCE
D
Symbol In Schematic
Diagrams
BCEBCE
BCE
BCE
DGS
DGGSS
Part Name
Transistor
Transistor
with resistor
Field effect
transistor
Resistor array
3-terminal
regulator
4.1 FM/AM TUNER MODULE (For MYXJ and NVXJ Types)
B
FM/AM TUNER MODULE
AA
3. The parts mounted on this PCB include all necessary parts for
several destinations.
For further information for respective destinations, be sure to
check with the schematic diagram.
NOTES:•Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
The mark found on some component parts indicates the importance of the safety factor of the part.
•
Therefore, when replacing, be sure to use parts of identical designation.
When ordering resistors, first convert resistance values into code form as shown in the following examples.
•
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).
Note:
Before adjusting, make sure there is no gap between L6101 and L6102 as well as between L6103 and L6104. If there is a gap between them,
bring them into contact with each other first, and then make adjustments.
Adjustment
No.
1
2Stereo Distortion
3
Title
Front End
Sensitivity
TUNED IND.
Lighting Level
FM SG (1kHz, ± 75kHz dev.)
Frequency
(MHz)
1060 to 30106MHz
98
(ON STEREO)
9818 ± 298MHzVR6201
Level
(dBµV)
8098MHzT6101
Reception
Frequency
Display
Adjustment
Location
L6104
L6105
L6102
T6101
Specifications
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.
Minimize the distortion with 1/8 rotation of the
core.
Adjust so that the indicator of TUNED IND.
starts to light up.
AM Tuner Section
• Set the mode selector to AM BAND.
• Connect the wiring as shown in Fig. 1.
Step
Note (∗1) : For the area using 10kHz step, frequency should be 1000kHz.
No.
1
Adjustment
Title
Front End
Sensitivity
AM SG (400Hz, 30% Mod.)
Frequency
(kHz)
999 (∗1)35 to 45999kHz (∗1)
AM SG
MPX SGFM SG
FM75Ω antenna terminal
Level
(dBµV/m)
Center
Fig.1 AM and FM Adjustment Wiring Diagram
FM/AM TUNER MODULE
Reception
Frequency
Display
60cm
Center
Adjustment
Location
T6201
Loop antenna
AM antenna terminal
PRODUCT
Specifications
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.
DC
Voltmeter
AM
antenna
terminal
FM
antenna
terminal
AXX7042
YELLOW BLACK
L6101
L6102
L6103
L6105
T6101
L6104
Fig.2 Adjustment Point
T6201
Pin 20
IC6201
VR6201
57
Page 58
XR-A670, XR-A370
6.1.2 For KUCXJ Type
FM Tuner Section
• Set the mode selector to FM BAND.
• Connect the wiring as shown in Fig. 3.
Step
Note:
Before adjusting, make sure there is no gap between L6401 and L6402. If there is a gap between them, bring them into contact with each other
first, and then make adjustments.
No.
1
2
Adjustment
Title
Front End
Sensitivity
TUNED IND.
Lighting Level
FM SG (1kHz, ± 75kHz dev.)
Frequency
(MHz)
980 to 3098MHz
9818 ± 298MHzVR6201
Level
(dBµV)
AM Tuner Section
• Set the mode selector to AM BAND.
• Connect the wiring as shown in Fig. 3.
Step
Note (∗1) : For the area using 10kHz step, frequency should be 1000kHz.
No.
1
Adjustment
Title
Front End
Sensitivity
AM SG (400Hz, 30% Mod.)
Frequency
(kHz)
999 (∗1)35 to 45999kHz (∗1)
Level
(dBµV/m)
Reception
Frequency
Display
Reception
Frequency
Display
Adjustment
Location
L6402
T6401
Adjustment
Location
T6201
Specifications
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.
Adjust so that the indicator of TUNED IND.
strats to light up.
Specifications
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.
AM
antenna
terminal
FM
antenna
terminal
AM SG
MPX SGFM SG
Center
FM75Ω antenna terminal
Fig.3 AM and FM Adjustment Wiring Diagram
FM/AM TUNER MODULE
SIDE A
YELLOW BLACK
AXX7041
60cm
Center
T6401
Loop antenna
AM antenna terminal
PRODUCT
DC
Voltmeter
T6201
IC6201
Pin 20
VR6201
58
L6401
L6402
Fig.4 Adjustment Point
Page 59
6.2 CASSETTE DECK SECTION
6.2.1 For XR-A670
• Adjustment points and test points are shown in Fig.5, Fig.7 and Fig.9.
Mechanical Adjustment
• Test tape : NCT-111 (3kHz, 30min).
1. Tape Speed Adjustment
No.ModeTest Tape
Deck Ι
1
PLAY
NCT-111
(Playback : 3kHz)
Adjusting
Points
ADJ. VR on
CASSETTE
MECHA (Fig. 5)
Measurement
Points
TAPE TEST
POINT (Rch)
(AF Assy)
AF Assy
XR-A670, XR-A370
Adjustment ProcedureRemarks
Press the PLAY SW and adjust so that the reading
becomes 3000Hz ± 20Hz. Confirm that wow & flutter
level is below 0.3% (in the reverse direction, confirm
that the reading is within 3000Hz ± 60Hz).
Tape Speed
ADJ. VR
Front Side
Cassette
Mechanism
Section
(Side View)
Fig.5 Tape Speed ADJ. Point
Electrical Adjustment
Check the following before starting.
(1) Confirm that the tape speed adjustment has been completed.
(2) Clean the heads and demagnetize them using a head eraser.
(3) Set the measurement level to 0 dBV = 1 Vrms.
(4) Use the specified tape for adjustment. Use the labeled (A)
side of the test tape.
STD-331E : For playback check
STD-632 : Normal blank tape
(5) Provide yourself with the following measuring devides:
• AC millivoltmeter
• Low-frequency oscillator
• Attenuator
• Oscilloscope
(6) Adjust both right and left channels unless otherwise specified.
(7) Turn the DOLBY NR switch off unless otherwize specified.
(8) Warm up the unit for several minutes before adjustment.
In particular, be sure to warm up the unit in the REC/PLAY
mode for 3 to 5 minutes before starting recording/playback
frequency characteristics adjustment.
(9) Always follow the indicated adjustment order.
Otherwise, a complete adjustment may not be achieved.
Playback Adjustment (Decks Ι and ΙΙ)
(1) Head Azimuth Adjustment
(2) Playback Level Adjustment
After adjustment, apply silicon bond to
the head azimuth adjustment screw.
63Hz 40Hz
Hz
Remarks
–20 dB
(2) Playback Level Adjustment
• Since this adjustment determines playback dolby NR level, perform it carefully.
StepMode
1
PLAY
Input Signal/
Test Tape
STD-331E test tape
(Playback: 315Hz, 0dB)
Adjusting Points
Deck Ι
Deck ΙΙ
VR2303 (L ch)
VR2304 (R ch)
VR2305 (L ch)
VR2306 (R ch)
Measurement
Points
TAPE TEST
POINT (L, Rch)
(AF Assy)
Adjustment
Value
– 3.7dBV
PLAYBACK
25010k
3dB3dB 4dB
RECORDING
25010k
3dB3dB 5dB
Remarks
12.5k
12.5k
REV Azimuth Adjustment Screw
Fig. 7 Head Azimuth Adjustment Screw
60
FWD Azimuth Adjustment Screw
Fig. 8 Frequency Characteristics
Page 61
Recording Adjustment
(1) Bias Oscillation Frequency Adjustment
StepMode
1REC
Input Signal/
Test Tape
Load the STD-632 test
tape and set the
recording mode.
Adjusting Points
Deck ΙΙ
Deck Ι
L2801
(AF Assy)
(2) Recording Bias Adjustment
• Since this adjustment affects recording bias, prevent distortion from increasing due to underbias.
StepModeInput Signal/Test TapeAdjusting Points
1REC
Input a 315 Hz signal to the
AUX terminal and set the input
selector to AUX.
Deck ΙΙ
Deck Ι
Measurement
Points
Between A
point Fig. 9
and GND
Input signal level
Adjustment
Value
Oscillation
frequency to be
105.0kHz ±
2kHz.
Measurement
Points
TAPE TEST
POINT (L, Rch)
(AF Assy)
XR-A670, XR-A370
Remarks
If the REC/STOP button for four
seconds while the power is in STAND
BY mode, the frequency will decrease
2 to 3 kHz.
Adjustment ValueRemarks
– 23.7 dBV
2
REC →
PLAY
Load the STD-632 test tape and
record/playback the 315Hz and
10kHz signals
(see the Note below)
Deck ΙΙ
Deck Ι
VR2801 (L ch)
VR2802 (R ch)
TAPE TEST
POINT (L, Rch)
(AF Assy)
Note : Set the 10 kHz input signal level to the same value as the 315 Hz input signal level of step 1.
(3) Recording Level Adjustment
StepModeInput Signal/Test TapeAdjusting Points
1REC
REC →
2
PLAY
Input a 315 Hz signal to the
AUX terminal and set the input
selector to AUX.
Load the STD-632 test tape and
record/playback the 315Hz
signal.
Deck ΙΙ
Deck Ι
Deck ΙΙ
Deck Ι
Input signal level
VR2301 (L ch)
VR2302 (R ch)
Measurement
Points
TAPE TEST
POINT (L, Rch)
(AF Assy)
TAPE TEST
POINT (L, Rch)
(AF Assy)
(4) ALC Operation Check
StepModeInput Signal/Test TapeAdjusting Points
1
REC/
PAUSE
2
Input a 315 Hz signal to the
AUX terminal and set the input
selector to AUX.
Input signal level
Set to a level + 10dB above the
input level at step 1.
Measurement
Points
TAPE TEST
POINT (L, Rch)
(AF Assy)
Repeat adjustment until playback level
of the 10kHz signal is within 0 ± 0.5 dB
from that of the 315Hz signal.
Adjustment ValueRemarks
– 7.7 dBV
Repeat recording, playback and
adjustment until playback level of the
315 Hz signal becomes – 7.7 dBV.
Adjustment ValueRemarks
– 8.2 dBV
Confirm that the reading is
– 2.2 ± 2.5 dBV.
61
Page 62
XR-A670, XR-A370
AF ASSY
SIDE A
L2801
A
VR2302
VR2802
TAPE TEST
POINT
L chR ch
VR2301
VR2801
VR2303 VR2305
VR2304
VR2306
FRONT
Fig.9 Adjustment and Measurement Points
62
Page 63
6.2.2 For XR-A370
1. Tape Speed Adjustment
Mechanical Adjustment
Electrical Adjustment
Check the following before starting.
• Adjustment points and test points are shown in Fig.10, Fig.12 and Fig.13.
• Test tape : NCT-111 (3kHz, 30min).
No.ModeTest Tape
Adjusting
Points
Measurement
Points
Adjustment ProcedureRemarks
1
Deck Ι
PLAY
NCT-111
(Playback : 3kHz)
ADJ. VR on
CASSETTE
MECHA
(Fig. 10)
TAPE TEST
POINT (Rch)
(AF Assy)
Press the PLAY SW and adjust so that the reading
becomes 3000Hz ± 20Hz. Confirm that wow & flutter
level is below 0.3% (in the reverse direction, confirm
that the reading is within 3000Hz ± 60Hz).
Front Side
AF Assy
Fig.10 Tape Speed ADJ. Point
Cassette
Mechanism
Section
(Side View)
Tape Speed
ADJ. VR
(1) Confirm that the tape speed adjustment has been completed.
(2) Clean the heads and demagnetize them using a head eraser.
(3) Set the measurement level to 0 dBV = 1 Vrms.
(4) Use the specified tape for adjustment. Use the labeled (A)
side of the test tape.
STD-331E : For playback check
STD-632 : Normal blank tape
(5) Provide yourself with the following measuring devides:
• AC voltmeter (Noisemeter : filter off)
• AC millivoltmeter
• Low-frequency oscillator
• Attenuator
• Oscilloscope
(6) Adjust both right and left channels unless otherwise specified.
(7) Warm up the unit for several minutes before adjustment.
In particular, be sure to warm up the unit in the REC/PLAY
mode for 3 to 5 minutes before starting recording/playback
frequency characteristics adjustment.
(8) Always follow the indicated adjustment order.
Otherwise, a complete adjustment may not be achieved.
Playback Adjustment (Decks Ι and ΙΙ)
(1) Head Azimuth Adjustment
Recording Adjustment (Deck Ι)
(1) Bias Oscillation Frequency Adjustment
(2) Recording Bias Adjustment
∗ As the reference recording level is 250nwb/m for STD-331E,
the recording level will be higher by 4 dB for STD-331B
(160nwb/m). When adjusting, pay carefull attention to the type
of tape used.
• Do not switch between forward and reverse operation with the screwdriver inserted.
StepMode
1PLAY
Input Signal/
Test Tape
STD-331E test tape
(Playback: 10kHz,
–20dB)
Adjusting Points
Deck Ι
Deck ΙΙ
Head azimuth
adjustment
screw (Fig. 12)
Measurement
Points
TAPE TEST
POINT (L, Rch)
(AF Assy)
Recording Adjustment
(1) Bias Oscillation Frequency Adjustment
StepMode
1REC
Input Signal/
Test Tape
Load the STD-632 test
tape and set the
recording mode.
Adjusting Points
Deck ΙΙ
Deck Ι
L2801
(AF Assy)
Measurement
Points
Between A
point Fig. 13
and GND
Adjustment
Value
Max. playback
signal level
Adjustment
Value
Oscillation
frequency to be
105.0kHz ±
2kHz.
Remarks
After adjustment, apply silicon bond to
the head azimuth adjustment screw.
Remarks
(2) Recording Bias Adjustment
• Since this adjustment affects recording bias, prevent distortion from increasing due to underbias.
StepModeInput Signal/Test TapeAdjusting Points
1REC
REC →
2
PLAY
Load the STD-632 test tape and
record (No signal)
Load the STD-632 test tape.
Record the 315Hz and 10kHz
signals at –25dBV input level
(check B point) and playback.
Deck Ι
Deck ΙΙ
Deck Ι
VR2802
(AF Assy)
VR2802
(AF Assy)
Note : No connecting to BIAS TP POINT at Step 2 REC → PLAY.
64
Measurement
Points
BIAS TP POINT
(AF Assy)
TAPE TEST
POINT (L, Rch)
(AF Assy)
Adjustment ValueRemarks
24V to 27V
Repeat adjustment until
playback level of the 10kHz
signal is within 0 ± 1.0dB
from that of the 315Hz
signal.
Page 65
XR-A670, XR-A370
FRONT
AF ASSY
SIDE B
TAPE TEST
POINT
R ch
VR2301
L ch
VR2802
VR2302
B
(VR is nothing)
L2801
BIAS TP POINT
A
Fig.13 Adjustment and Measurement Points
65
Page 66
XR-A670, XR-A370
6.3 TEST MODE
NOTE: There is no information to be shown in this CD adjustment.
How to Start/Cancel Test Mode
TEST MODE : ON
TEST DISC: YEDS-7
STANDBY/ON
TEST MODE : PLAY
TEST DISC: YEDS-7
Pickup
outwards
Move
inwards
TEST MODE : STOP CANCEL
STOP
Function CD
REC/STOP
Laser diode: LIGHTS UP
Focus servo: CLOSE
STOP
CD TEST
Short Point
"TEST 4"
PLAY/
PAUSE
Spindle motor: START
Spindle servo: CLOSE
CD TEST
Short Point
PLAY/
PAUSE
CLOSEOPEN
Tracking servo:
STOP all operations.
Test Point
DISPLAY ASSY
STANDBY/ON
SIDE B
Bottom Side
CD TEST
66
Page 67
7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 DISASSEMBLY
$M MECHANISM CD-2
1
Bonnet Case
2
× 3
1
× 2
1
× 2
XR-A670, XR-A370
4
1
× 2
3
Fitting
Main Cam
Lock Lever
1
× 2
Note: The loading tray can be pulled out
when the main cam is in this position.
(The Lock Lever should be in the
notch of the Main Cam.)
Tray
Cap
6
5
× 3
Unhook
13
7
× 2
9
8
OPTICAL
DIGITAL OUT
Cap Release
XR-A670
Only
$M Mechanism CD-2
10
11
12
67
Page 68
XR-A670, XR-A370
FRONT PANEL
1
Unhook
FM/AM TUNER Module
AF Assy
2
Unhook
SUB TRANS Assy
PRIMARY Assy
SECONDARY Assy
$M MECHANISM CD-2 ADDITIONAL TO JOB
Mechanism Base (Bottom View)
Front Side
Front Panel
DISPLAY Assy
3
3
68
2
1
3
Page 69
XR-A670, XR-A370
Clamper Holder
Clamper Holder
Actuater
2
$M Mechanism CD
1
Hook
2
Actuater
Servo Base
1
Hook
Servo Mechanism
Assy
2
1
Hook
Servo Base
1
Hook
FITTING THE PULLEY INTO THE CARRIAGE MOTOR
For replacement of the carriage motor,
fit the motor pulley by using the servicing
pulley press-in station located on the loading
tray, as shown in the figure on the right.
Carriage Motor
Motor Pulley
Servicing pulley press-in station
Loading Tray
69
Page 70
XR-A670, XR-A370
7.2 PARTS
7.2.1 IC
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
STK407-100B (AF ASSY : IC3301)(XR-A670 Only)
• Power Amp. IC
Block Diagram
•
Ch. 2
Ch. 1
1
2
Ch. 2
–Vcc
Ch. 1
–Vcc
34
Ch. 1, 2
+Vcc
56789
Ch. 1
OUT
Ch. 2
OUT
Pre
–Vcc
Pre
+Vcc
101112131415
Ch. 1INCh. 1NFC.C.C.
BIAS
Ch. 2
NF
Ch. 2
IN
Sub
SUB
GND
70
Page 71
XR-A670, XR-A370
No.Pin NameI/OFunctionNo.Pin NameI/OFunction
1CD RESETO Reset output for CD LSI51 VFDP–
2CD SE CLKO CD SENS readout clock52 D5593/S05
I/O
FL display control segment
3CD SENSICD SENS data input53 D5592/S06
4CD LATO Strobe output for CD54 D5591/S07
5CD DCLKO CD DATA readout clock55 S08O
6CD DATAO CD DATA output56 CLAMP/S09
I/O
7PBASS LED
O LED Control
57 OPEN/S10
8
ZOOM SR. LED
58 INSIDE/S11
9EQ LED59 DISC123/S12
10 PRESET LED60 ARR/S13
11 ACIAC pulse input power supply61 ARF/S14
12 XRESETI CPU reset input62 MODE1/S15
13 REEL1I Pulse input for deck 2 reel63 MODE2/S16
14 REEL2I Pulse input for deck 1 reel64 HALF1/S17
15 VSS– GND65 HALF2/S18
16 CF1I66 CrO2_1/S19
17 CF2O67 CrO2_2/S20
18 VDD– Power supply68 S21O
19 KEY1IFront key input 169 S22O
20 KEY2IFront key input 270 S23O
21 KEY3IFront key input 371 RDS DATAI/O Data input for RDS
22 MSI DECK MS signal input72 VDD–Power supply
23 ST/TUNEITuner tuned (STEREO) detection73 SOL2O Deck 1 solenoid control
24 SPE-INISpectrum analyzer signal input74 SOL1O Deck 2 solenoid control
25 TIMER LEDO LED control75 MOTORO Deck motor control
26 CD MUTEO CD mute control76 CD LOAD INO CD load in control
27 SCORI
Outputs high signal when either subcode
sync S0 or S1 is detected
77 CD LOAD OUTO CD load out control
28 RDS CLKIClock input for RDS IC (BU1923)78 DISC3O DISC 3 LED control
29 REMOCONI Remote control signal input79 DISC2O DISC 2 LED control
30 G01
O FL display control grid
80 DISC1O DISC 1 LED control
31 G0281 VOLJOG1
IPulse input for volume JOG
32 G0382 VOLJOG2
33 G0483 MORP JOG1
IPulse input for sound morphing JOG
34 G0584 MORP JOG2
35 G0685 PLL CEO TUNER PLL IC strobe output
36 G0786 EVOL CEO
Main volume control IC strobe output
37 G0887 POWERO Main power control
38 G0988 LINE MUTEO Line mute control
39 G1089 VSS– GND
40 G1190 VDD– Power supply
41 G1291 EXP CLKO Clock for EXP IC (BU4094BCF)
42 G1392 EXP DATAO Data for EXP IC (BU4094BCF)
43 G1493 EXP CEO Strobe for EXP IC (BU4094BCF)
44 G1594 SCAN ONO Key scan input control
45 G1695 CD SHUTO ON/OFF control for CD
46 VDD– Power supply96 SQSOISub Q data output
47 D5597/S01
I/O FL display control segment
97 SQCKO SQSO readout clock
48 D5596/S0298 SYSDATAO Serial data output
49 D5595/S0399 TXDATAISerial data input
50 D5594/S04100 SYS CLKO Serial clock output
÷ When the power plug is connected to an AC wall outlet, the unit
enters the demonstration mode. Press the Power button to cancel
the demonstration mode.
Press the STANDBY/ON switch .
To switch the power OFF (STANDBY):
Press the STANDBY/ON switch.
“GOOD BYE” is displayed.
Standby indicator lights.
7 DISC CHANGE button
8 OPEN/CLOSE button (Also switches power on if in standby.)
9 Volume control (VOLUME)
0 TIMER STANDBY indicator
- CD function button (Also switches power on if in standby.)
= AUX function button
(Also switches power on if in standby. If the auxiliary component
is already playing, then you'll hear it.)
~ TUNING + ¡ • ¢ button
! PLAY/PAUSE button
(Also switches power on if in standby.)
@ STOP/ST.MEMORY button
# TUNING – 4 • 1 button
*
*
*
*
$ TUNER/BAND function button
(Also switches power on if in standby.)
The illustration shows XR-A670.
9
0
º
ª
•
¶
§
∞
7 Auto Play Function
If you press the CD function button when a CD is
loaded, the CD automatically starts playing. If you
press the TAPEI/II function button when a tape is
loaded in the cassette deck, the tape automatically
starts playing.
NOTE:
You cannot change the function during recording
and tape copying.
% TAPE I/II function button
(Also switches power on if in standby.)
^ XR-A370 : REPEAT button
XR-A670 : Dolby** 2 NR ON/OFF button
& FREQ/STATION button
* PRESET button
( TAPE I Eject button (0)
) REC/STOP button
_ ASES/COPY button
+ TAPE I cassette door
¡ EQUALIZER button
™ ZOOM SURROUND button
£ P.BASS (DEMO) button
¢ SET button
∞ TAPE II cassette door
§ TAPE II Eject button (0)
¶ SOUND MORPHING JOG (S. M. JOG)
÷ The functions of some buttons changes depending on the
input. To learn about rhe different functions see the page
numbers in parenthesis.
**
÷ Dolby noise reduction manufactured under license from Dolby
Laboratories Licensing Corporation.
÷ “DOLBY” and the double-D symbol are trademarks of Dolby
Laboratories Licensing Corporation.
75
Page 76
XR-A670, XR-A370
Display Section
!
@
#
3
4
21
5
~
=
-
0
1 Displays a wide range of operation status indications.
2 Lights during Sleep Timer operation.
3 Lights when the MONO mode is selected.
4 Lights during FM stereo reception.
5 Lights when Dolby NR is on. (XR-A670 only)
6 Indicates tuner reception status.
7 Lights when BEAT CUT 2 is selected. (XR-A670 only)
8 Lights when the RDS mode is selected.
9 Indicates SOUND MORPHING status.
0 Indicates CD function status.
- Indicates Audio level.
= Lights during ASES operation.
~ Indicates CD play status.
! Indicates TAPE play status.
@ Displays timer function indications.
# Lights during recording.
FM antenna.................................................................................... 1
AM loop antenna ............................................................................ 1
Power Cord .................................................................................... 1
NOTE:
Specifications and design subject to possible modification without
notice, due to improvement.
POWER-CORD CAUTION
Handle the power cord by the plug. Do not pull out the plug by
tugging the cord and never touch the power cord when your hands
are wet as this could cause a short circuit or electric shock. Do not
place the unit, a piece of furniture, etc., on the power cord, or pinch
the cord. Never make a knot in the cord or tie it with other cords.
The power cords should be routed such that they are not likely to
be stepped on. A damaged power cord can cause a fire or give
you an electrical shock. Check the power cord once in a while.
When you find it damaged, ask your nearest PIONEER authorized
service center or your dealer for a replacement.
Accessories
1
Remote Control Unit × 1
(CU-XR060 : XZN3067)
1
2
3
78
2
FM Antenna × 1
(MYXJ and NVXJ Types : ADH7005)
(KUCXJ Type : ADH7004)
4
AA/R6P Dry Cell Batteries × 2
(VEM-013)
3
AM Loop Antenna × 1
(XTB3001)
5
Power Cord × 1
(MYXJ Type : ADG1154)
(NVXJ Type : ADG1156)
(KUCXJ Type : ADG7022)
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