Pioneer - CT-F2121 - Cassette deck
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Equipment:
CT-F2121
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Information
Systems......................Compact cassette, 2-channel stereo
Recording .... AC bias system (bias frequency: 85kHz)
Erasing.............................................AC
push-pull system
Heads . . ."Permalloy Solid" recording/playback headx 1
Ferritte erasing head x 1
Motor.................... Electronically-controlled DC motor
Fast Winding Time............... Approximately 80 seconds
(C-60 tape)
Wow and Flutter...............No more than 0.12% (WRMS)
Frequency Response.........................Standard, LH tapes;
30 to 13,000Hz (40 to 11,000Hz, ±3dB) Chromium dioxide tape;
30 to 16,000Hz (40 to 12,000Hz, ±3dB)
Signal-to-Noise Ratio Dolby OFF; 48dB
(standard and LH tapes) Dolby ON; 58dB (over 5kHz, standard
and LH tapes) (When chromium dioxide tape is used,
signal-to-noise ratio is further improved by 4.5dB over 5kHz)
Inputs (Sensitivity/Maximum allowable input/lmpedance) MIC x
2; 0.3mV/63mV/20kß, 6mm<£> jacks (Reference Mic impedance;
600Ω to 20k£2) LINE x 2; 63mV/12V/50ka, Pin jacks REC/PB x
1; 10mV/2V/10ktt, 5P jack
(DIN standard)
Outputs (Reference level/Load impedance)
LINE x 2; 450mV/50ki2, Pin jacks Headphone x 1; 80mV/8£2,
6mm0, stereo jack REC/PB x 1; 450mV/50k£2, 5P jack
(DIN standard)
Semiconductors Amplifier ection; 41 transistors
(including 2 FETs) 28 diodes (including 3 zener diodes, 1
LED) Motor control section; 2 transistors, 1 diode
Subfunctions.........................«Dolby system (ON OFF)
with indicator lamp •Tape selector (STD/Cr02) Independently
switchable bias and Equalizer •Full-auto stop mechanism (in
all modes of PLAY/REC/FF/REW) •Cassette compartment
illumination Power Requirements .... AC120V, 60Hz (KCU model)
AC220V, 50/60Hz (NB model) AC 120V, 220V and 240V
(switchable) 50-60Hz
(DV, DP model)
Power Consumption........................... 15 watts (max.)
Dimensions ................. 350(W) x 142(H) x 282(D) mm.
13-3/4(W) x 5-5/8(H) x 11-1/8 in.
Weight ..................14 lb 9 oz (6.6 kg) (without package)
Accessories...................................Stereo
connecting cord
with pin plugs x 2 Head cleaning kit x 1 Operating
instructions x 1
1 Manual
Service manual
Manual type:
Service manual
Pages:
60
Size:
15.7 MB
Language:
english
Revision:
Manual-ID:
ART-144-0
Date:
Quality:
Scanned document, all readable.
Upload date:
Sept. 27, 2015
MD5:
f9cff7a2-5f7f-58d1-8452-b3e71a7c84b8
Downloads:
1443
Information
1.
SPECIFICATIONS.........................................................................................................................
3
2. FRONT PANEL
FACILITIES.....................................................................................................
4
3. CONNECTION
DIAGRAM............................................................................................................
6
4. BLOCK DIAGRAM
........................................................................................................................
7
5. LEVEL DIAGRAM
........................................................................................................................
9
6. CIRCUIT DESCRIPTIONS
6.1 Recording and Playback Circuit
............................................................................................
10
‘ 6.2 Auto Stop
Circuit.....................................................................................................................
12
z—<v 6.3 Power Supply Circuit
............................................................................................................
13
', .. 6.4 Muting Circuit
...........................................................................................................................
13
7. DISASSEMBLY
Parti
......................................................................................................................................................
14
Part 2
......................................................................................................................................................
15
Part 3
.....................................................................................................................................................
16
8. PARTS LOCATIONS
' 8.1 Front
View................................................................................................................................
17
8.2 Front View with Panel Removed
.........................................................................................
18
8.3 Top View
...................................................................................................................................
19
8.4 Rear Panel View (NB, KCU
model).......................................................................................
20
8.5 Rear Panel View (DV, DP
model).........................................................................................
21
8.6 Bottom
View..............................................................................................................................
22
^ 9. MECHANICAL ADJUSTMENTS
9.1 Pinch Roller
Pressure................................................................................................................
23
9.2 Tape Speed
...............................................................................................................................
23
9.3 Reel Hab Torque
......................................................................................................................
24
9.4 Muting Switch
...........................................................................................................................
25
9.5 Solenoid Operation
.................................................................................................................
25
9.6 Play Switch
...............................................................................................................................
26
9.7 Rec Actuating
Lever.................................................................................................................
26
10. ELECTRICAL ADJUSTMENTS
10.1 Head Azimuth
...........................................................................................................................
27
10.2 Playback Equalizer 27
10.3 Playback Level
...........................................................................................................................
27
10.4 Level Meter
Calibration............................................................................................................
27
10.5 Recording
Current......................................................................................................................
27
10.6 Recording Bias
.............................................................................................................................27
10.7 Bias Trap
.....................................................................................................................................28
10.8 Recording/Playback Frequency
Response.............................................................................28
10.9 Recording Level
..........................................................................................................................28
10.10 Dolby Processor
........................................................................................................................28
11. SCHEMATIC DIAGRAMS, P.C. BOARD PATTERNS AND PART LISTS
11.1 Schematic Diagrams and Miscellaneous
Parts.........................................................................31
11.2 Power Supply and O.S.C. Assembly
(RWR-027)..................................................................34
11.3 REC/PB Amplifier Assembly (RWF-043)
..............................................................................37
11.4 Fuse Board Assembly
1. KCU Model
(RWX-089)......................................................................................................45
2. DV, DP Model
(RWX-090)................................................................................................45
3. NB Model
(RWX-092).........................................................................................................46
11.5 Indicator Assembly (RWX-087)
.............................................................................................47
11.6 Lamp Assembly
(RWX-052).....................................................................................................47
11.7 Control Assembly (RWG-049)
................................................................................................48
12. EXPLODED VIEW ..51
12.1 Panel
Stay.....................................................................................................................................53
12.2 Rear
Panel.....................................................................................................................................53
12.3 Main
Chassis................................................................................................................................54
13. EXPLODED VIEW TRANSPORT ..55
13.1 Head
..........................................................................................................................................57
13.2 Idler A
..........................................................................................................................................57
13.3 Sensing Switch
.............................................................................................................................58
13.4 Transport
Chassis........................................................................................................................59
13.5 Play, Muting Switch
...................................................................................................................60
13.6 Operating Button Assembly
(RXA-498)...............................................................................61
13.7 Tape Counter
...............................................................................................................................62
13.8 Eject
Bracket................................................................................................................................62
14. PACKING
..........................................................................
..63