This service manual is intended for qualified service technicians; it is not meant for the casual
do-it-yourselfer. 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
Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which
may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).
When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with
the solder. Also, when soldering do not inhale any smoke or fumes produced.
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 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.
Reading should
not be above
0.5 mA
Earth ground
Device
under
test
Also test with plug
reversed
(Using AC adapter
plug as required)
Leakage
current
tester
Test all exposed
metal surfaces
AC Leakage Test
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
on the parts list 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
2
Page 3
2. EXPLODED VIEWS AND PARTS LIST
NOTES : ÷ Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List.
÷ The
÷ Screw adjacent to ∞ mark on the product are used for disassembly.
2.1 PACKING
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.
CAUTION: FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE.
NO. AEK7009, MFD BY LITTEL
FUSE INK.FOR IC101 AND IC102.
5
6
BC
7
D
8
15
Page 16
1
234
CT-R5
4. PCB CONNECTION DIAGRAM
4.1 MAIN ASSY , CONNECT ASSY
A
NOTE FOR PCB DIAGRAMS:
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
Symbol in Schematic
Diagrams
BCE
BCEBCE
BCE
Part Name
Transistor
Transistor
with resistor
A
MAIN ASSY
B
DGS
3. The parts mounted on this PCB include all necessary parts
for several destination.
For further information for respective destinations, be sure
to check with the schematic diagram.
4. Viewpoint of PCB diagrams
C
P. C. BoardChip Part
DGSDGS
CapacitorConnector
ANP7205–B
Field effect
transistor
Resistor array
3-terminal
regulator
SIDE A
SIDE B
Q331
Q334Q333Q332
To MECHANISM UNIT (1/2)
ERASE HEAD
To MECHANISM UNIT (1/2)
REC/PB HEAD
B
VR332VR331
Q335
Q102
CONNECT ASSY
Q201
Q202
D
Q112 IC111
Q111
16
AB
Q101Q102
1234
Page 17
5
67
8
CT-R5
SIDE A
A
B
VR201 VR202 VR301 VR302
To MD RECORDER
MJ-R5 CN101
IC231Q336 Q306Q305
Q253
To MECHANISM UNIT (2/2)
C
C
CN402
IC102
IC101
To TUNER AMPLIFIER
SX-R9 CN103
5
C
CN401
D
AB
6
7
8
17
Page 18
A
B
CT-R5
1
A
234
MAIN ASSY
Q251 Q252
C
IC251Q353
B
CONNECT ASSY
Q352Q232
Q351
Q231
D
ANP7205–B
18
A
B
1234
Page 19
5
67
8
CT-R5
SIDE B
A
B
Q205
Q206
IC201
IC301Q301–Q304
Q203
Q204
IC207
SIDE B
C
D
A
5
6
7
B
8
19
Page 20
1
CT-R5
4.2 MCON ASSY, FRONT ASSY
A
B
234
D
FRONT ASSY
C
MCON ASSY
C
Q410
Q408
B
CN104
D
B
CN103
Q409
Q407Q401
20
C
D
1234
Page 21
5
67
8
CT-R5
SIDE A
A
B
To MECHANISM UNIT (2/2)
Q402Q405Q403
C
D
5
6
7
C
D
8
21
Page 22
A
B
CT-R5
1
234
D
FRONT ASSY
C
MCON ASSY
C
Q451–Q458Q404Q406IC401
D
22
C
D
1234
Page 23
5
67
8
CT-R5
A
SIDE B
B
SIDE B
C
ANP7205–B
D
5
6
7
C
D
8
23
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CT-R5
5. PCB PARTS LIST
NOTES : ÷ Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List.
÷ The
÷ When ordering resistors, first convert resistance values into code form as shown in the following examples.
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.
Ex. 1When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by
When the adjustment is made, the product should be connected to a STEREO TUNER AMPLIFIER (SX-R9) .
For your information, another method (without using the tuner amp.) is explained here.
6.1 TEST MODE
7 How to enter the Test Mode
* In case that the product is connected to an SX-R9
Select either of the following procedures:
1. By using the remote control, turn on the power to the
CT-R5 and receive the " A15F " signal from the
tuner amp through the bus.
2. With Power OFF, connect the Pin-15 of the micro computer to GND, and short the TEST MODE
jumper wires W159(TEST) and W160(GNDD) each
other on the MCON ASSY. Then turn on the power
by using the remote control. (Refer to Fig. 6-1.)
TEST MODE
W159
W160
Short point
MCON ASSY
A
CONNECT ASSY
14
12
6
+7.0V
–7.0V
Fig.6-2
7 Test mode operations
- When the product enters the test mode, two center LEDs will
flash .
- All operation buttons, except for the [REC] and [REVERSE
MODE] Buttons, provide normal operations in the mode.
- When all LEDs remain extinguished, shift the TC/MD signal
selector to the MD side inside the CT-R5.
(1) LED check
Each time the [REVERSE MODE] button is pushed, the LED
operation changes as follows:
Normal display = All LEDs ON = All LEDs OFF = Leaf
+ SW check
(2) Leaf SW check
When the leaf switches are depressed, their corresponding
LEDs light up as follows:
+5.6V
Fig . 6 - 1
* In case that an SX-R9 is not available for adjustment
- On the CONNECT ASSY, short the pin -7 (GNDD:W128),
pin -13 (GNDR:W127) and pin-17 (GNDA:W126) of
CN101 one another. (Refer to A)
- On the MCON ASSY, short the TEST MODE jumper
wires W159(TEST) and W160(GNDD) each other.
(Refer to Fig. 6-1.)
- Apply the DC power voltage to the Pin-6(+5.6V), Pin-12
(-7V), and Pin-14(+7V) of respectively.
(Refer to Fig. 6-2.)
26
Leaf switch LED
REV REC SW .............................. REC LED
FEW REC SW .............................. FWD LED
CrO
2 SW ........................................ DOLBY LED
HALF SW ...................................... REV LED
(3) Auto REC/PLAY operation mode
Push the [REC] button. The auto REC/PLAY operation mode
starts:
1. Sets the function of tuner amp to AUX.
2. One second later, starts 5-second FWD recording.
3. Performs REV recording for 5 seconds.
4. Shifts the function to TAPE, then performs FWD play for
5 seconds.
5. Stops operations.
* When the [REC] button is pushed once again, the above
operations are repeated.
** After the auto REC/PLAY operation is completed, when the
[REV] button is pushed, CT-R5 performs REV play for 5
seconds and stops operations.
7 How to cancel the test mode
To cancel the test mode, push the “POWER” button on the the
tuner amp to turn off the power to the CT-R5.
Page 27
6.2 ADJUSTMENT
7 Adjustment Condition
(1) The ground at the time of adjustment shall be W153.
(Refer to Fig. 6–5).
(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.
NCT–111: For Tape Speed adjustment
NCT-132X : For Playback adjustment
STD–632: Normal blank tape
* As the reference recording level is 250 nwb/m for NCT–
132X, 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.
(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.
Note: In case of adjustment as a single unit, connect a 22 kΩ load
resistor to pins 16(PBR) and 18 (PBL)of CN101(CONNECT
ASSY).
0 dB
30s
315 Hz
0 dB: 315 Hz, 250 nwb/m
30 s 30 s 30 s 10s 10s .......................................................................................................... 10s
6.3 kHz10 kHz315 Hz 14 kHz
Fig. 6–4 Test Tape NCT-132X
12.5
kHz
315Hz=0dB
Fig. 6–3 Frequency Characteristics
Dolby noise reduction manufactured under license from Dolby
Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol are trademarks of Dolby
Laboratories Licensing Corporation.
¶ After the adjustment, caution should be exercised so as not to become under bias by checking the distortion rate.
No.ModeInput Signal/Test TapeAdjustment Points
REC/
1
PAUSE
REC =
2
PLAY
Input a 315Hz signal to the AUX
terminal of SX-R9.∗
Load the STD–632 test tape and
record/playback the 315Hz and
10kHz signals. (see the Note below)
Input signal level–24.2 dBV
L ch
R chVR332
VR331
Measurement
Points
TP L (W161)
TP R (W162)
( MAIN ASSY)
Note: Set the 10kHz input signal level to the same value as the 315Hz input signal level of step 1.
(2) Recording Level Adjustment
No.ModeInput Signal/Test TapeAdjustment Points
REC/
1
PAUSE
REC =
2
PLAY
Input a 315Hz signal to the AUX
terminal of SX-R9.∗
STD–632 test tape and record/
playback the 315Hz signal.
Input signal level–8.2 dBV
L ch
R chVR302
VR301
Measurement
Points
TP L (W161)
TP R (W162)
( MAIN ASSY)
Adjustment
Value
Repeat adjustment until playback level of
the 10kHz signal is within 0 ±0.5dB from
that of the 315Hz signal.
Adjustment
Value
Repeat recording, playback and
adjustment until playback level of the
315Hz signal becomes –
Remarks
Remarks
8.2dBV±0.5dB
.
*: In case of adjustment as a single unit, enter the signal at 15P(RECR) and 19P(RECL) of CN101(CONNECT ASSY). At this time, connect
an output buffer amplifier to the oscillator, and then connect a series resistor (180 Ω) after the impedance has become sufficiently low. (For
MPX filter impedance matching)
28
Page 29
CT-R5
PB LEVEL
REC LEVEL
MAIN ASSY
VR332
(R ch)
VR331
(L ch)
REV Azimuth
Adjustment Screw
Tape speed adjustment VR
NOTE: Always use a ceramic
screwdriver for adjustment.
FWD Azimuth
Adjustment Screw
BIAS LEVEL
Front
VR201
(L ch)
VR202
(R ch)
VR302
(R ch)
VR301
(L ch)
Mesurement
Points
TAPE TEST POINT
W161 (L ch)
W153 (GND)
W162 (R ch)
MECHANISM UNIT
Front
Fig. 6–5 Adjustment and Measurement Points
29
Page 30
CT-R5
7. GENERAL INFORMATION
7.1 IC
7 PDC044A (IC401: MCON ASSY )
¶ System Micro-computer
¶ Pin Function
No.NameI/O Description
1TC/XMDO Switching Signal H :TC / L : MD
2XT OUTO L: Loading mechanism OPEN (Nch O.D.)
3XT INO L: Loading mechanism CLOSE(Nch O.D.)
4S. CLKISystem bus CLOCK
5XRESETIReset
6NC–– Connected to VDD
7NC–– Not used
8NC–– Connected to VDD
9 VSS–– Power supply (–) terminal VSS
10CF1I
Connected to Ceramic oscillator
11CF2 O ( 6 MHz)
¶ The information shown in the list is basic information and may not
correspond exactly to that shown in the schematic diagrams.