Audio Amplifier Section; Radio Section; Cassette Deck Section - JVC KS-RT70 B Service Manual

<S — RT70 B/E/G/GE/GI
Mi Features
@ Detachable Control Panel
® Controller for control of CD changers
containing up to 108 compact discs (for
example, when 6 JVC XL-MG1800 CD
Changers are connected, each XL-MG1800
contains 3 magazines so that this controller
can access the discs in 18 magazines; with :
each magazine containing 6 discs,
consequently it gives access to up to 108
discs)
e@ High Sensitivity Tuner
e AM/FM-Stereo PLL Synthesizer Tuner
@ 24-Station Preset Tuning (FM-18, AM
(MW/LW)-6)
e Preset scan/Seek/Manual Tuning
e Strong-station Sequential Memory (SSM)
@ SK/DK Traffic Information Reception (KS-
RT70 G/GE)
e Special-preset Station Reserve (SSR)
e@ U-Turn Auto-Reverse Mechanism
Mi Specifications
AUDIO AMPLIFIER SECTION
Maximum Power Output:
(Front) 8 W per channel!
(Rear) 25 W per channel
Continuous Power Output (RMS):
(Front) 3 W per channel into 4 2, 100 to 20,000
Hz at no more than 0.8% THD
(Rear) 12 W per channel into 4 Q, 40 to 20,000
Hz at no more than 0.8% THD
Load impedance: 4 Q (4~ 8 Q Allowabie)
Tone control Range
Bass: +10 dB at 100Hz
Treble: +10 dB at 10 kHz
Frequency Response: 40 — 20,000 Hz
Signat-to-Noise Ratio: 70 dB
Line-Output Level/Impedance:
0.5 V/20 kQ load (250 nWh/m)
RADIO SECTION
Frequency Range
FM: 87.5 - 108.0MHz
AM: (MW) 522-—-1,620 kHz
(LW) 144 — 281 kHz (Manual)
144 — 279 kHz (Auto)
[FM Tuner]
Usable Sensitivity: 12.1 dBf (1.1 »V/750)
50 dB Quiefing Sensitivity: 16.3 dBf
(1.8 pV/75Q)
Alternate Channel Selectivity (400 kHz): 65 dB
Frequency Response: 40 — 15,000 Hz
Stereo Separation : 35 dB
Capture Ratio: 1.5 dB
2 (No.49178)
@ Ignition Key-off Release/Key-on Play
Mechanism
@ Dolby* B Noise Reduction
@ 4-Channel Amplifier System
Maximum Power Output of 8 W per channel!
(Front}/25 W per channel (Rear)
Active Hyper Bass Sound |
Active-illuminated Operating System (AOS)
Clock
Line Output Terminal
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
"DOLBY" and the double-D symbol DO are
trademarks of Dolby Laboratories Licensing
Corporation.
{MW Tuner]
Sensitivily: 20 pV
Selectivity: 35 dB
[LW Tuner}
Sensitivity: 50 pV
CASSETTE DECK SECTION
Wow & Flutter: 0.11 % (WRMS)
Fast Wind Time: 100 sec. (C-60)
Frequency Response (NR-OFF}: 50 ~ 16,000 Hz (+3
dB
)
Signal-to-Noise Ratio (Normal tape)
(Dolby NR on): 60 dB
(Dolby NR off): 52 dB
Stereo Separation: 40 dB
GENERAL
Power Requirement
Operating Voltage: DC 14.4 V {11 V - 16 V Allowable)
Grounding System: Negative Ground
Dimensions (W x H x D)
installation Size: 182 x 52 x 162 mm
(7-13/16" x 2-1/16" x 6")
Panel Size: 189 x 58 x 15 mm
(7-1/2" x 2-5/16" x 5/8")
Gross Weight: 2.1 kg (4.7 Ibs)