Pioneer ctf 1050 service manual

Page 1

ORDER NO.
ART-574-0

Auto-reverse/Random access music select

STEREO CASSETTE TAPE DECK

T-F'II-S

MODEL CT-F1050 COMES IN TWO VERSIONS DISTINGUISHED AS FOLLOWS:

i

Type Voltage Remarks
D/G 120V, 220V and 240V (switchable) US. Military model
D 120V, 220V and 240V (switchable) General export model

This service manual is applicable to the D/G type. When repairing the D type, please see the
additional service manual.

CONTENTS

I. SPECIFICATIONS ...................... 2 IO. SCHEMATIC DIAGRAM ................. 37
2. FRONT PANEL FACILITIES. . . .P ........... 3 II. PC. BOARD CONNECTION DIAGRAM ....... 45
3. LEVEL DIAGRAM ...................... 6 12. PARTS LIST ......................... 53
4. BLOCK DIAGRAM .................. .. . . . 7 I3. EXPLODED VIEWS AND PARTS LIST ....... 59
5. DISASSEIVIBLY ........................ 9 14, PACKING ,,,,,,,,,,,,,,,,,,,,,,,,,,, 69
6. PARTS LOCATION .................... II 15. WIRED REMOTE CONTROL .............. 70
7. CIRCUIT DESCRIPTIONS ................ 13 Additional Service Manual ................... 71
8. MECHANICAL ADJUSTMENTS ............ 28

9. ELECTRICAL ADJUSTMENTS ............ 3O

FIONEER ELECTRONIC CORPORATION 4-1. Meguro 1~0home, Meguro-Ku. Tokyo 153. Japan
U.S. PIONEER ELECTRONICS CORPORATION 85 Oxford Drive. Moonachie. New Jensey 07074. LJ.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Luithagen-Haven 9. 2030 Antwerp, Belgium

PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 {Boundary Road. Braesmje, Victoria (3195. Australia

AUG. 1980 Printed in Japan

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1. SPECIFICATIONS

Systems .............. Compact cassette, 2-channel stereo

Motor ......... DC servo motor x 1 (For driving the capstan)

DC high-torque motor x 1 (For driving the reel)

Heads ............. Sendust recording/ playback head x 1

Erasing head x 2

Fast Winding Time ............. Approximately 90 seconds

(C-60 tape)

Wow and Flutter ........... No more than 0.045% (WRMS)
Frequency Response -20dB recording:

Normal, LH tapes .................. .. . . . 20 to 15,000 Hz

(25 to 14,000 Hz +3 dB)

Chromium dioxide tape ................. 20 to 17, 000 Hz

(25 to 16, 000 Hz +3 dB)
(0 dB recording; 25 to 8,000 Hz)
Metal tape ............................ 20 to 19,000 Hz
(25 to 18,000 Hz :3 dB)
(0 dB recording; 25 to 13,000 Hz)
Signal-to-Noise Ratio
Dolby NR OFF ....................... More than 59 dB
Dolby NR ON ............. More than 69 dB (over 5 kHz)
Harmonic Distortion ............ No more than 1.0% (0 dB)
lnput (Sensitivity/Maximum allowable input/Impedance)
MIC (L, R) ...... 0.3 mV/lOOmV/10kQ, 6mm diam.jack
(Reference MIC impedance; 250 S2 to 10 k9)
LlNE(lNPUT) x2 .......... 50mV/20 V/100kS2, Pinjack
Output (Reference level/Maximum level/Load impedance)
LINE (OUTPUT) x 2 ..... 450 mV/640 mV/50 kQ, Pin jack
Headphones ........ 60 mV/85 mV/8 Q, 6 mm diam. jack

Subfunctions

Auto reverse, auto repeat functions

Random access music select system

PMS system

REC muting switch (Auto space pause)

Remote control

Dolby NR system (ON/OFF) with LED indicator lamp
Stand-by mechanism with unattended recording
3 position tape selector

(NORM/CrOz/METAL)

Full automatic stop mechanism

Memory stOp function

2 color digital level meter

4 digit digital tape counter

lC-based logic control

Output level control

Cassette compartment illumination

Miscellaneous
Power Requirements ............... AC 120 V/220 V/ 240 V
(switchable) 50/60 Hz
Power Consumption ......................................... 53 watts
Dimensions .............. 420 (W) x 130 (H) x 365.5 (D) mm
16-9/16 (W) x 5-1/8 (H) x 14 - 3/8 (D) in.
Weight (without package) .............. 9.9 kg (21 lb 13 oz)
Furnished Parts
Remotecontrolunit .......... ' ................. 1
Connection cord with pin plugs ..................................... 2
Fuse ............................................... 1(1. 5Aor800mA)
Operating instructions ................................................ 1

NOTE:
Specifications and the design subject to possible modificatIons
without notice due to improvements.

NOTE:
1. Reference Tapes: Normal 8 LH: DIN 45513/BLATT6
or equiv.
CrOz DIN 45513/BLATT7 (00;)
or equiv.

2. Rerefence Recording Level: Meter 0 dB indicating level
(160 nwb/ m magnetic level = Philips cassette reference
level)

Reference Signal: 333 Hz

Wow Er Flutter: 0 JIS [3 kHz, with acoustic compensa-

tion (weighted), rms value] DIN (3,150 Hz, with acoustic

compensation (weighted) PEAK value]; DIN 45507

5. Frequency Response: 0 Measured at ~20 dB level,
DOLBY NR OFF, level deviation is :6 dB without indica-
tion.

6. Signal to Noise Ratio: 0 Measured at the third harmonic
distortion 3% level, weighted (DIN 45513/BLATT7).

7. Sensitivity: Input level (mV) required for reference
recording level with input (REC) controls set to max-
imum.

8. Maximum Allowable Input: While decreasing settings of
input (REC) level controls and increasing level at input
jacks, this is the maximum input level (mV) at the point
where recording amplifier output waveform becomes
cfipped.

9. Reference Output Level: Playback output level when
meter indicates 0 dB.

10. Maximum Output Level: Playback output level with
respect to reference recording level when output
(PLAY) level control is set to maximum.

11. This model doesn't employ a recording / playback
connector (DIN-type).

PS