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There are currently no product reviews.
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Original well scanned manual. Got the job done. Microwave problem found & corrected. For $5 and a new magnitron from ebay, it was a cheap and good the first shot fix. Electrical schematics allowed me to mage sure every thing else was ok before cutting and order for parts. Hard to live without.
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I was very skeptical of this website, I have never downloaded manuals before. I put it on the AMEX and payed through Paypal to ensure protection. I got the manual exactly as described and now I can replace the filter capacitor for this amp. Great Price, others selling for 12.99 or more and this is the same manual. I will search out this website for other manuals. Thank you
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Manual was reasonably easy to follow. I am not an engineer or know much about electronics but with the manuals help I was able to figure out the problem, identify the part required for the repair. Replacement part cost around $30. Whilst replacing the part I was telling myself, "this aint gonna work cos it seems far too easy". Took about 15 minutes to do and my plasma TV works a treat. Would never have been able to do this without the service manual.
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It is OK, this manual help me to repair my dynacord
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Good manual. Even it is an old printed manual, it is well scanned and complete, with all drawings, schematics and parts list. Very good return for the cost.
GT120d 12" Woofer � Technical Data
SPECIFICATIONS
DIAMETER: SENSITIVITY (2.83 V @ 1 M): POWER HANDLING: FREQUENCY RESPONSE: NOMINAL IMPEDANCE: VOICE-COIL DIAMETER: DIMENSIONS:
mounting depth 6.25" (158.75 mm)
12" (304.8 MM) 93 dB 250 WRMS (1,000 WPEAK) 23 ~ 450 HZ 4 OHMS 2.0" (50.8 MM)
SEALED BOX VOLUME (INCLUDES DRIVER DISPLACEMENT)
GT120d
(side view)
VBOX = 1.00 ft3 (28.32 liters)
(stuffed with loosely-packed fiberfill)
cutout diameter 11.125" (283.00 mm) outer diameter 12.25" (311.15 mm)
SEALED FREQUENCY RESPONSE @ 2.83 V
100 dB In-Car 12 dB LP @ 80 Hz 90 Out-Of-Car
THIELE-SMALL PARAMETERS
VOICE COIL DC RESISTANCE: R
EVC
80 70
(OHMS) . . . . . . 3.56
VOICE COIL INDUCTANCE @ 1 KHZ: L EVC (MH) . . . . . . . 2.54 DRIVER RADIATING AREA: MOTOR FORCE FACTOR: COMPLIANCE VOLUME: SUSPENSION COMPLIANCE: MOVING MASS, AIR LOAD: MOVING MASS, DIAPHRAGM: FREE-AIR RESONANCE: MECHANICAL Q: ELECTRICAL Q: TOTAL Q: MAGNETIC-GAP HEIGHT: VOICE-COIL HEIGHT: MAXIMUM EXCURSION: S D (IN 2) . . . . . . . . 82.31 S D (CM2) . . . . . . 531.00 BL (TM) . . . . . . . . 14.78 VAS (FT3) . . . . . . . . 3.22 VAS (LITERS) . . . . . 91.12 C MS (µM/N) . . . . 227.58 MMS (GRAMS). . . . 181.74 MMD (GRAMS) . . . 174.70 FS (HZ) . . . . . . . . 24.75 Q MS . . . . . . . . . . . 6.46 Q ES . . . . . . . . . . . . 0.46 Q TS . . . . . . . . . . . . 0.43 HAG (IN) . . . . . . . . . 1.30 HAG (MM) . . . . . . . 33.00 H (IN) . . . . . . . . . 0.31
VC
60 50 40
30
C
20 20 Frequency 50 100 Hz 200 500 1k
2k
SEALED TRANSDUCER EXCURSION @ 300 W
20.0 Xd mM 17.5 15.0
12.5
10.0
7.5
HVC (MM) . . . . . . . . 8.00 X MAX (IN) . . . . . . . . 0.49 X MAX (MM) . . . . . . 12.50
5.0 2.5 0.0 20 Frequency 50 100 Hz 200 500 1k
C
2k
JBL Consumer Products � 250 Crossways Park Drive � Woodbury, NY 11797 � VOICE: 516-496-3400 � FAX: 516-496-4868 � www.jbl.com
 $4.99 GT120D JBL
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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