Marantz 3800 - Page 3

SECTION 1
GENERAL INFORMATION AND OPERATING PRINCIPLES ..... 0... ccc cece cece cece rete enennes
Te VINTRODUCTION : 5 5 fos scgiwlece lea A oevice even sie (6 ee cecw ego Mierpiey ae ac eigne. au Siecle e anew wa eee eeth RLS
2 . GENERA Lei sss os ace are acces bie Sa Secs Sees wie Sia wat bg AGES Wye Same aA alle Woe la eed aes wieSeee ae
3. DESCRIPTION AND OPERATION... 0.0... ccc ccc cece reece teen e tenant eeeeeene
A. FUNCTIONAL DESCRIPTION .. 0.0... ccc cece ee eee teen eee
B. OPERATING PRECAUTIONS ......... 0c cece ccc eee eee etre neat eee
G; “SYSTEMCOPERATION wishes 2c d.2.0 ere ok ibid eee ere etetelegh eye ew lar eoy wetted Se allele as owas race epee acetates
D. PHONO/MIC AMPLIFIER... .... cece cc cee een teeta eens
E. DOLBY ENCODE / DECODE PROCESSORS... 2... ... ccc ect eeetee ee eens
F; TIMES TEN AMPLIFIER. 0003 64 ves eee ed eee ye nhac alee Cetin net oh ea alesean
G. ACTIVE FILTER NETWORK... 1... ccc cece ee eee eee ee renee
H. TONE CONTROL / TURNOVER NETWORK.......... cee eee e ee teen ete eee eee ene
4. DOLBY NOISE REDUCTION CIRCUIT ...... 0. ccc ccc cece eee eter reenter teenie
A. BASIC DOLBY PROCESS ....... cece ccc cece ee eee eee e nett e ene
B. USE OF THE DOLBY (NR) CIRCUIT AS A DYNAMIC NOISE FILTER............0.00 eee
5. TECHNICAL SPECIFICATIONS ..... 0... eee cece renee eee nee tetera ee eee
SECTION 2
MAINTENANCE ..... 0 cc cc cece ee ce eee eee cence eee ee eee eee eee eee nano e tree senna eae
1. GENERAL... 1... cic ee ce ce erent cece ete n eee e terete teen ete cee nenes
2. PREAMPLIFIER CIRCUITS TESTS AND ADJUSTMENTS ......... 00. e eee ee eee erences
A. TEST EQUIPMENT osecc.s cccce ce deste teres wheal ha te wie ettetacanaceng ota wuatagelae of brea deere tye weceia gs
B. PRELIMINARY CONDITIONS . 2.0.2.0... ccc ccc cece eee nent eens
C. POWER CONSUMPTION VERIFICATION ......- 0.0. cece cece eee eee
D. FUNCTIONAL TEST ......... 00. cece cee eee reece nee nett a tenet eeenenee
E. MAXIMUM VOLTAGE OUTPUT ..... 0... cece cee eee teen ene enennes
F. TOTAL HARMONIC DISTORTION (THD) ...... 2... cece ce cee cece eee eens
G. HUM AND NOISE... 2... ec ccc cece eee tn cern een e ene e eee en eee een eenne
H. FREQUENCY RESPONSE (PHONO /MIC).......... 0.26 c ee eee eens
J. HIGH LEVEL SEPARATION ..... 0... cece c cece cree rece eee et eee enna e anette nae
Keo. DREETERS ats 2s Sa Secsteicnt Arbue seve, BAU aracer ve anteriles Sins Adder taeer ciara aM eth cna ihane ee ah Bg web cha dk
Ls. - “TONE: CONTRO Les scc site: one aes Ree aca a pavavee a sre tala aoe wetes ea latesa ative eUR aa aos Sue ea da WEE eee Ga
M. TURNOVER FREQUENCIES... 1... 0c ccc ce tent erent
N. VOLUME TRACKING... . ccc cee ee renee ee eee eee teens
P. LOUDNESS CONTOUR... cece cc ee eee teen e ne nneee Aaa Ren ceays. uate
3. DOLBY NR CIRCUITS TESTS AND ADJUSTMENTS........... 0. cece ee eee eee bo neca chica ca tavehiansrone'es
As “DES E-EQUIPMENT iecvcitcenicccare 0 See: eengetipeteb teen eH a Se el we bod ork be Eadie tartar Ms ale GLE ence Galas ta
B PRELIMINARY CONDITIONS .. 0... 0c cece eee eee re eee ene e eens
GCG: “ENCODE LOOP GAIN 23 8 cites es shit eae orig Sew ee elie see SE RS ees Oe
D DEGODE LOOP GAIN fs.cc cs ee oie Lam ne marek ete ie hee Hee ae Nauena a eee aege ae ee
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