{gbW: '1400', gbH: '778', mW: '500', mH: '277.0', kb: '133 KB', notes: 'For model MCS Series Stereo Receiver 3275 Cat.No.: 683-3275, JCPenney, Penney's, J.C.Penney, Penncrest (brand); New York, NY:[br]Owners Handbook', title: 'JCPenney, Penney's, MCS Series Stereo Receiver 3275 Cat.No.: 683-3275 uploaded by Franz Scharner (2)', ite: '2'}{gbW: '1400', gbH: '1019', mW: '500', mH: '363.0', kb: '141 KB', notes: 'For model MCS Series Stereo Receiver 3275 Cat.No.: 683-3275, JCPenney, Penney's, J.C.Penney, Penncrest (brand); New York, NY:[br]Owners Handbook', title: 'JCPenney, Penney's, MCS Series Stereo Receiver 3275 Cat.No.: 683-3275 uploaded by Franz Scharner (2)', ite: '2'}{gbW: '1400', gbH: '1010', mW: '500', mH: '360.0', kb: '162 KB', notes: 'For model MCS Series Stereo Receiver 3275 Cat.No.: 683-3275, JCPenney, Penney's, J.C.Penney, Penncrest (brand); New York, NY:[br]Owners Handbook', title: 'JCPenney, Penney's, MCS Series Stereo Receiver 3275 Cat.No.: 683-3275 uploaded by Franz Scharner (2)', ite: '2'}{gbW: '1400', gbH: '1026', mW: '500', mH: '366.0', kb: '104 KB', notes: 'For model MCS Series Stereo Receiver 3275 Cat.No.: 683-3275, JCPenney, Penney's, J.C.Penney, Penncrest (brand); New York, NY:[br]Owners Handbook', title: 'JCPenney, Penney's, MCS Series Stereo Receiver 3275 Cat.No.: 683-3275 uploaded by Franz Scharner (2)', ite: '2'}{gbW: '1400', gbH: '1011', mW: '500', mH: '361.0', kb: '105 KB', notes: 'For model MCS Series Stereo Receiver 3275 Cat.No.: 683-3275, JCPenney, Penney's, J.C.Penney, Penncrest (brand); New York, NY:[br]Owners Handbook', title: 'JCPenney, Penney's, MCS Series Stereo Receiver 3275 Cat.No.: 683-3275 uploaded by Franz Scharner (2)', ite: '2'}
The Model 3260 heads the current receiver line of J.C. Penney's Modular Component Series (MCS). The Model 3260 has a digital-synthesis AM/FM tuner with an amplifier section specified to deliver its rated power into 8-ohm loads from 20 to 20,000 Hz with no more than 0.02 per cent distortion. It is a full-feature receiver with six memory buttons (each usable for one FM and one AM station), a digital frequency display whose large (1/2-inch) green numerals can be read from a considerable distance, and LED indicators for signal strength, input source, operating mode, and the audio power output of each channel. The displays occupy the upper half of the panel behind a full-width window.
Mcs 3125 Schematic
![Mcs 3125 repair manual free Mcs 3125 repair manual free](https://www.servicemanualbit.com/wp-content/uploads/edd/2019/10/Massey-Ferguson-MF7345S-MF7345S-MCS-MF7347S-MF7347S-MCS-Combines-Workshop-Service-Manual.jpg)
- Sharp Diagrams, Schematics and Service Manuals - download for free! Including: sharp 13e m100 service manual, sharp 20lk32 service manual, sharp 25rm100n service manual, sharp ar m350 450 service manual, sharp lc20a2e lcd tv sm service manual, sharp lc20a2m lcd tv sm service manual, sharp lc20b2ea lcd tv sm service manual, sharp lc 20e1u lc 20e1ub uw lcd tv sm service manual, sharp lc20vm2e.
- MCS 3260 Review. MCS 3260 Stereo Receiver Review. The Model 3260 heads the current receiver line of J.C. Penney's Modular Component Series (MCS). The Model 3260 has a digital-synthesis AM/FM tuner with an amplifier section specified to deliver its rated power into 8-ohm loads from 20 to 20,000 Hz with no more than 0.02 per cent.
- Jan 01, 2005.
- Jun 29, 2015.
That MCS was a 'tweener' that came out while Technics left their own belt drives alone. They never revised the design from the 20 and 23 until the later SL-220 series. Often INSIDE the box the components were very similar, if not the same. So the SL23 or SL220 service manuals should give you an idea what to look for.
Small buttons just below the display window select the program source (am, fm, phono, aux) and increase the sensitivity of the power display by ten times or switch it off entirely. Larger buttons across the bottom of the panel control two sets of speaker outputs, the audio filters (subsonic and high), AF MUTE (a 20-dB volume reduction), loudness compensation, mono/stereo MODE, FM MUTING, and the MPX FILTER (to remove the FM-multiplex pilot carrier from the audio outputs when recording).
Lever switches control power, tape dubbing from either of two decks to the other, and the tape monitor functions. The three tone-control knobs (bass, mid, treble) have center detents, and there is a pair of large concentric knobs for volume and balance. The rear apron of the receiver contains the signal input and output jacks, two a.c. outlets (one switched), and antenna binding posts plus a hinged, pivoted AM ferrite-rod antenna. The two sets of speaker connectors are the insulated spring-loaded type. The receiver's front panel is finished in satin silver, with the top and sides covered in walnut-grain vinyl.
Laboratory Measurements
The J.C. Penney Model 3260 receiver is fairly large for its power rating, so even though it is ventilated only by a small grille, it became no more than moderately warm during the preconditioning period and the subsequent high-power testing (except during 2-ohm operation).
When driving 8-ohm loads at 1,000 Hz, the outputs clipped at 73.8 watts per channel (IHF clipping-headroom rating of 0.9 dB). The clipping output into 4- and 2-ohm loads was 94 and 82 watts, respectively. Driving the amplifier with the pulsed dynamic-power test signal, we measured a power output at clipping of 89, 96, and 84 watts per channel for 8-, 4-, and 2-ohm loads, respectively. This corresponds to an IHF dynamic-headroom rating of 1.72 dB at 8 ohms.
Mcs 3125 Receiver
The 1,000-Hz distortion was very low, being masked by noise below 10 watts, where it reached 0.001 per cent, and climbing to 0.0036 per cent at the rated 60 watts. Into 4-ohm loads, the distortion was only 0.004 per cent at 10 watts, 0.011 per cent at 70 watts, and 0.04 per cent at 80 watts. The 2-ohm distortion was roughly the same as the 4-ohm readings, but at the maximum output of about 80 watts the amplifier became very hot, causing us to abandon the distortion test.
Across most of the audio-frequency range the distortion was well below 0.002 per cent at or below rated power output. At high frequencies it began to increase, to a maximum of 0.01 per cent at 20,000 Hz. The IHF intermodulation distortion was measured with equal-amplitude 18- and 19-kHz signals whose combined peak value was equal to that of a sine wave of 60 watts. The second-order distortion component at 1,000 Hz was barely detectable at -95 dB, and the third-order products at 17 and 20 kHz were each -91 dB (all referred to 60 watts). Blur game for mac. The IHF slew factor exceeded our measurement limit of 25.
The amplifier sensitivity for a 1-watt reference output was 20 millivolts (mV) through the aux input and 0.3 mV through the phono input. The A-weighted noise levels for these inputs were -78.4 and -76 dB, respectively. The phono preamplifier overloaded at a very good 220 to 230 mV at frequencies of 1,000 Hz and below but at a considerably lower level at 20,000 Hz. Slew limiting was apparent on the waveform when the 20,000-Hz overload was reached at the equivalent of a 1,000-Hz signal of 46 mV. The measured phono-input impedance was 50,000 ohms in parallel with 80 picofarads.
The tone controls had conventional characteristics, with the midrange control having a maximum range of only ± 6 dB centered at 1,000 Hz. The subsonic filter was 2 dB down at our lower measurement limit of 20 Hz. The high filter response was down 3 dB at 5,000 Hz with a not particularly useful slope of 6 dB per octave above that frequency. The loudness contours boosted both low and high frequencies but were quite mild in their effect, with a maximum bass boost of only 7 dB. The mute button reduced the gain by 19 dB. The RIAA phono equalization was accurate within 0.5 dB overall from 20 to 20,000 Hz. When measured through the inductance of a typical phono cartridge, the high-frequency phono response rose slightly above 2,000 Hz to a maximum of 1.5 dB at 20,000 Hz. This is unlikely to be audible.
The FM-tuner section of the Penney Model 3260 was unusually sensitive, with a usable sensitivity of 9.9 dBf (1.65 microvolts, or μV) in mono. The stereo threshold was 20 dBf (5.5 μV), at which level the distortion was 1.8 per cent. The 50-dB quieting sensitivity was 13 dBf (2.4 μV) in mono and 35 dBf (30 mV) in stereo. At 65 dBf (1,000 μV) the tuner noise level was -75 dB in mono and -70 dB in stereo, with corresponding distortion readings of 0.066 and 0.19 per cent. The IHF intermodulation distortion of the tuner (with 14- and 15-kHz modulating signals) was -72 dB for the second-order product at 1,000 Hz and -57 dB for the third-order distortion at 13 and 16 kHz. In stereo, the third-order distortion was about the same, but the second-order increased to -57 dB and a number of additional spurious products appeared on the spectrum-analyzer display (this is typical of stereo tuners).
The FM frequency response was virtually flat from 30 to 10,000 Hz and up 1.7 dB at 15,000 Hz. The channel separation was 34.5 dB at 30 Hz but a nearly constant 48 to 50 dB from 400 to 15,000 Hz. The 19-kHz pilot-carrier leakage into the audio was - 64 dB and the 60-Hz hum was -73 dB. The tuner's muting threshold was 17.2 dBf (4 μV). The signal-strength lights came on at inputs from 28.7 dBf (for the first light) to 54.7 dBf (for the fifth one). The FM capture ratio was 1.25 dB and the AM rejection was 60 dB at a 65 dBf input. Image rejection was a good 90 dB. Alternate-channel selectivity was 71 dB and adjacent-channel selectivity was 5 dB. The frequency response of the AM-tuner section was more or less typical of the performance found in receivers: down 6 dB at 90 and 2,500 Hz.
Comment
Most of the features of the J.C. Penney Model 3260 are not unique in today's receivers, but we were nevertheless impressed by its exceptionally smooth and 'bug-free' operation, conservative ratings, and ability to withstand considerable electrical abuse on our test bench.
In our tests, the tuner memories were retained (thanks to a built-in NiCad battery) for several weeks even with the plug removed from a powered outlet. Also, each time the receiver is turned on, it comes on at the frequency to which it was tuned when last operated.
The Model 3260 is one of the few receivers (or amplifiers) with really usable 'loudness' compensation. Its moderate bass boost ensures a pleasant, non-tubby sound at low listening levels, with enough added 'body' to the program to justify the use of the feature.
Excellent as the Model 3260 is, we were probably even more impressed by its origins. J.C. Penney is certainly not the usual hi-fi dealer or manufacturer, and this unit is obviously aimed at a broad mass market of consumers. Most earlier attempts to market component hi-fi to a mass market have emphasized flashy 'space-age' cosmetics rather than the level of performance that most readers of Stereo Review would expect from a quality stereo component.
Mcs 3125 Repair Manual Online
Vcarve pro 8.5 software. 'The Model 3260 (and presumably its companions in the MCS line) is a very different matter. This receiver could be placed on the shelf by any audio dealer, and it would look perfectly 'at home' in the company of any others that happened to be there. Furthermore, it can hold its own (and then some) against some of the products of the most prestigious names in hi-fi in the same price range. The Model 3260 is the third generation of Penney MCS receivers to pass through our hands, and we are glad to see that it has evolved into a product of which any hi-fi manufacturer (or consumer) could be proud. It is a nice piece of work in every way.