JBL ESC-200 Service manual

ESC200

Dolby Pro-Logic Surround Processor/Amplifier

SERVICE MANUAL

JBL Consumer Products Inc. 250 Crossways Park Drive Woodbury, N.Y. 11797 1-800-336-4JBL in the USA

A Harman International Company

Part No.: 1112-ESC200 Rev A 10/98

Dolby Pro-LogicÒSurround Processor/Amplifier ESC200

TABLE OF CONTENTS

ESC200 SPECIFICATIONS ...........................................1

CONTROLS AND THEIR FUNCTION...........................3

ESC200 SPEAKER AND SOURCE CONNECTIONS ..3

ESC200 PACKING .........................................................4

ESC200 BLOCK DIAGRAM...........................................5

ESC200 UNIT EXPLODED VIEW .................................6

ESC200 PARTS LISTS..................................................7

ESC200 SPECIFICATIONS

Power Handling (RMS) .........20Watts ..........60Watts

Frequency Response ..........120Hz - 20kHz .......35Hz - 200Hz

Sensitivity (1 Watt/1 meter) .......87dB............90dB

Nominal Impedance...........8ohms...........6ohms

Woofer Size ..............3".............6-1/2"

Tweeter Size ..............1"

Dimensions (HxWxD) ..........4-1/16 x 7-1/2 x 7-3/8" ....7-3/4 x 13-7/8 x 17-3/4"

ESC200 KEYPAD PCB................................................10

ESC200 MAIN PCB (Component Side) ......................11

ESC200 MAIN PCB (Solder Side)...............................12

INTEGRATED CIRCUIT DIAGRAMS ..........................13

SCHEMATIC DIAGRAMS ............................................16

ESC200 IC VOLTAGE READINGS.............................23

Satellite Speaker Subwoofer

103 x 190 x 187mm 198 x 354 x 451mm

Processor Amplifier

Total Maximum Amplifier Output - 100 Watts

Dimensions (HxWxD) - 2-11/16 x13-1/2 x 9" (69 x 343 x 230mm)

Occasional refinements may be made to existing products without notice, but will always meet or exceed original specifications unless otherwise stated.

Dolby Pro-LogicÒSurround Processor/Amplifier ESC200

ESC200 SPECIFICATIONS

ESC200 Pro-Logic Surround Theater System

Power source: 117V/60Hz 230Hz/50Hz Test conditions: 8 ohm loading each channel (6X)

Bass & Treble - flat Boost - off Mode - stereo Fader - front channel = back channel Balance - left = right Volume - 300 mV input for 1W (to nearest step) Center Trim - center Surround Trim - center

Technical Performance Readings

Parameters Unit Typical Limit

1. THD at 8W, 1KHz, output % 0.5% 1%

2. THD at 15W, 50Hz, Sub out % 1.0% 3%

3. Frequency Response at five output re 1KHz, -3dB a.

Hz Hz

125 50K

100-150

>30K

4. Frequency Response at five output re 50Hz, -3dB a.

5. Volume Control at 1KHz (from Max) db 60 >50

6. Balance Control at 1KHz db 40 >30

7. Fader Control at 1KHz db 40 >30

8. Bass a. Boost at 100Hz

b. Cut at 100Hz (Bass control)

9. Treble a. Boost at 10KHz

b. Cut at 10KHz (Treble control)dbdb

10. Bass Boost at 80Hz (Boost function) db 6 >5

11. Input Z at 1KHz a. Input 1

b. Input 2

12. S/N Ratio “A” re 1W input short db 72 >70

13. Noise level w/30K LPF input short mV 0.8 1.0

14. S/N Ratio “A” re 1W

Surround Mode L, C, R, SUB Input Short Surround

15. Noise level w/30K LPF

Surround Mode L, C, R, SUB Input Short Surround

Hz Hz

db db

ohm ohm

db db

mV mV

1101885-125

<25

8 8

20K 20K

70 63

1.2

1.5

>5 >8

>6 >6

>15K >15K

>65 >60

1.5

2.0

16. Input Sensitivity at 8W (Vol at Max, 1kHz) at FL, FR, RL, RR,

A. RCA

17. Separation at 1W, 1kHz db 45 >40

mV 350 270-420

Dolby Pro-LogicÒSurround Processor/Amplifier ESC200

CONTROLS AND THEIR FUNCTION

1. VOLUME - This controls an increase (+) or decrease (-) in volume.

2. CENTER - This controls the volume of the Center Speaker.

3. TREBLE - This controls the level of the treble.

4. BASS - This controls the overall bass output.

5. BASS BOOST - This increases the bass output to the subwoofer.

6-9. BALANCE - These buttons balance the front and rear

as well as the left and right speaker strengths.

ESC200 SPEAKER AND SOURCE CONNECTIONS

10. STEREO - This turns on and off the stereo mode.

11. HALL - This changes the sound to Hall mode.

12. CONCERT - This changes the sound to Concert mode.

13. PRO-LOGIC - This turns on the Pro-Logic mode.

14. INPUT 1/2 - This swiches to either music source connected to Input 1 or Input 2 (RCA jacks).

15. POWER - This button turns on the ESC200.

Dolby Pro-LogicÒSurround Processor/Amplifier ESC200

ESC200 PACKING

Dolby Pro-LogicÒSurround Processor/Amplifier ESC200

ESC200 BLOCK DIAGRAM

Dolby Pro-LogicÒSurround Processor/Amplifier ESC200

ESC200 UNIT EXPLODED VIEW

Dolby Pro-LogicÒSurround Processor/Amplifier ESC200

ESC200 PARTS LISTS

Ref. # Part # Description Qty

MAIN-PCB SECTION

Capacitors

C1, 2, 35, 60, 1-12010PI 1µF E.CAP, 50V+-20% 5x11 7

86, 158, 179

C3 1-12310KI 1000µF 10V+-20% 8x16 1 C5, 199, 202, 205 1-11447RH 0.0047µF 100V+-10% MINI 7

208, 211, 214

C6, 11, 21, 24, 25 1-11122RH 0.22µF 100V+-10%MINI 10

97, 102, 118, 126, 154

C7, 48, 73, 77, 1-11322RH 0.022µF 100V+-10% MINI 7

144, 153, 165

C8, C27, C31, C54, 1-11347RH 0.047µF 100V+-10% MINI 5

C55

C9, 41, 43, 61, 1-14091PI 0.1µF MONO CAP 50V +-20% 7

104, 178, 180 HB-TYPE

C10, 12 1-12122LI 22µF 16V+-20% 5x11 2 C11, 39, 44, 45 1-12110LI 10µF 16V+-20% 5x11 26

47, 62, 64, 66, 69, 70, 72, 88, 89, 94, 98, 99, 103, 107, 115, 123, 137, 140, 161, 162, 164, 171

C13, 14, 16, 17 1-11101RH 0.1µF M.CAP, 100V+-10% MINI 33

20, 32, 33, 40, 53, 57, 80, 81, 82, 83, 84, 92, 93, 105, 106, 113, 114, 121, 122, 129, 130, 150, 156, 182, 183, 184, 185, 219, 220

C15, 67, 75, 79, 1-12020PI 2.2µF 50V+-20% 5x11 20

95, 96, 100, 108, 111, 116, 117, 124, 125, 132, 136, 138, 147, 160, 167, 169

C18, 19, 37, 38, 1-12047PI 4.7µF 50V+-20% 5x11 5

101

C22 1-12968PI 0.68µF 50V+-20% 5x11 LL 1 C23, 58, 87 1-16147PH 470ρF 50V+-10% 3 C26 1-11439RH 0.0039µF 100V+-10% MINI 1 C28, 42 1-12220KI 220µF 10V+-20% 6x11 2 C29, 154, 155 1-11456RH 0.0056µF 100V+-10% MINI 3 C30 1-12002PI 0.22µF 50V+-20% 5x11 1 C36, 145 1-16168PH 680ρF 50V+-10% 2 C49, 74, 78, 152, 1-11433RH 0.0033µF 100V+-10% MINI 6

157, 166

C50, 51 1-16031PH 30ρF C.CAP, 50V+-10% NPO 2 C52, 63, 141, 142, 1-12247KI 470µF 10V+-20% 8x12 5

146

Ref. # Part # Description Qty

C56 1-12147LI 47µF 16V+-20% 5x11 1 C59, 143 1-12210KI 100µF 10V+-20% 5x11 2 C63, 141 1-12247MI 470µF 25V+-20% 8x16 2 C90, 91 1-16110PH 100ρF 50V+- 10% 2 C109, 119, 120, 1-12133NI 33µF 35V+-20% 6x11 6

127, 128, 133

C139, 148, 149, 172 1-12524MI 2200µF 25V+-20% 16x26 85C 4 C177, 186, 187, 188, 1-11201RH 0.01µF 100V+-10% MINI 7

189, 190, 197

C181 1-12922PI 22µF 50V+-20% 5x11 LL 1 C191, 192, 193, 194, 1-16115PH 150ρF 50V +-10% CERAMIC 5

195

C198, 201, 204, 207, 1-16122PH 220ρF 50V +-10% CERAMIC 6

210, 213

C200, 203, 206, 209 1-16301PH 0.001µF 50V +-10% CERAMIC 7

212, 215, 216

C221 1-16010PH 10ρF 50V +-10% CERAMIC 1

Diodes

D1, 2, 3, 4 1-05-031 DIODE 6A1-4 4

D5 1-05-009 DIODE 1N4148 T/R 1

Z1, 2 1-06-001 ZENER 1/2W+-5% 5.1V T/R 2

Z3 1-06-003 ZENER, 1/2W+-5% 8.2V T/R 1

Integrated Circuits

U1 1-09-058 IC, NJM2177AL, DOLBY PRO-LOGIC 1

SURROUND DECODER

U2 1-09-057 NJU9701D/NJU9702D 1

DIGITAL DELAY

U3 1-09-305 CD 4066D QUAD BILATERAL 1

SWITCH

U4 1-09-024 BA14741 ROHM QUAD OP AMP 1

U5, 10, 11, 12 1-09-421 BA4560/4560D ROHM/NJRC 4

DUAL OP AMP

U6, 7, 8 1-09-054 LC7538NM SANYO, ELECTRONIC 3

VOLUME CONTROL

U9 1-09-053 LC7821N SANYO, ANALOG SWITCH 1

U13, 14, 15 1-09-092 LM1876TF NS, 20W POWER AMP 3

U16 1-08-006 REG, NJM7809FA/7809A 1

+9V REGULATOR

U17 1-08-158 REG, NJM7805FA/7805A 1

+5V REGULATOR

Resistors

R1, 2, 23, 27, 30, 1-17-415 1/8W+-5% PS 15K OHM T/B 9

46, 47, 77, 79

R3, 4, 9, 10, 29, 1-17-482 1/8W+-5% PS 100K OHM T/B 12

35, 96, 104, 105, 120, 121, 122

R5, 6, 12, 25, 39, 54, 1-17-410 1/8W+-5% PS 10K OHM T/B 22

57, 67, 80, 90, 108, 109, 111, 113, 123, 124, 125, 126, 164, 165, 166, 170

Dolby Pro-LogicÒSurround Processor/Amplifier ESC200

Ref. # Part # Description Qty

R7, 8 1-17-510 1/8W+-5% PF 100K OHM 2

R11 1-17-439 1/8W+-5% PS 39K OHM T/B 1

R15, 99 1-22-127 3W+-5% WIRE WOUND 27 OHM 2

R16, 102 1-17-412 1/8W+-5% PS 12K OHM T/B 2

R17, 74 1-17-382 1/8W +-5% PS 8.2K OHM T/B 2

R18, 78, 101, 110 1-17-422 1/8W+-5% PS 22K OHM T/B 4

R19, 51, 87, 92 1-17-327 1/8W+-5% PS 2.7K OHM T/B 4

R20 1-17-420 1/8W+-5% PS 20K OHM T/B 1

R21, 24, 69 1-17-375 1/8W +-5% PS 7.5K OHM T/B 3

R22, 26 1-17-447 1/8W+-5% PS 47K OHM T/B 2

R28 1-17-647 1/8W+-5% PS 4.7M OHM T/B 1

R31, 33, 162, 1-17-351 1/8W +-5% PS 5.1K OHM T/B 8

163, 167, 168, 169, 171

R32, 34 1-17-510 1/8W+-5% PS 82K OHM T/B 2

R36 1-17-610 1/8W+-5% PS 1M OHM T/B 1

R37, 55, 65, 1-17-324 1/8w+-5% PS 2.4K OHM T/B 5

88, 103

R38, 56, 66, 75 1-17-430 1/8W+-5% PS 30K OHM T/B 7

76, 89, 100

R40, 63 1-17-418 1/8W+-5% PS 18K OHM T/B 2

R41, 45, 52, 59, 1-17-515 1/8W+-5% PS 150K OHM T/B 12

64, 68, 73, 82, 86, 91, 97, 175

R42, 49, 60, 1-19-010 1/2W+-5% PS 1 OHM T/B 6

70, 83, 93

R43, 50, 61, 71, 1-19-110 1/2W+-5% PS 10 OHM T/B 7

84, 94, 98

R44, 62, 72 1-17-356 1/8W +-5% PS 5.6K OHM T/B 3

R48, 95 1-17-339 1/8W +-5% PS 3.9K OHM T/B 2

R53, 58 1-17-120 RES, 1/8W+-5% PS 20 OHM T/B 2

R85, 112 1-17-215 1/8W+-5% PS 150 OHM T/B 2

R106, 107 1-17-312 1/8W+-5% PS 1.2K OHM T/B 2

R114, 115, 116, 1-17-310 1/8W+-5% PS 1K OHM T/B 4

117

R118, 119 1-17-351 1/8W+-5% PF 5.1K OHM 2

R127 1-17-310 1/8W+-5% PF 1K OHM 1

R128 1-17-433 1/8W+-5% PS 33K OHM T/B 1

R155 1-17-533 1/8W+-5% PS 330K OHM T/B 1

R172, 173 1-17-410 1/8W+-5% PF 10K OHM 2

Transistors

Q15, 16, 17, 18 1-07-004 NPN NEC 9014C 4

Q19 1-07-107 NPN MPSA06 1

Ref. # Part # Description Qty

MISCELLANEOUS SECTION

L1, 2, 3, 4, 5, 6 1-04-011 COIL, SPRING COIL 0.8mm 6

12T D=5.5mm

LD1 1-25-215 LED DISPLAY SET 1

XTAL1 1-03-109 C-RES, CER-RESONATOR, 1

CSA2.0MHZ MURATA

FLAT CABLE PITCH=2mm UL 3 PINS 160MM(10+10) 1

1-58-017 WAFER, 12 PINS PITCH=2.5mm 1

1-58-010 WAFER, 3 PINS PITCH=2.5mm 1

1-58-009 WAFER, 4 PINS PITCH=2.5mm 1

FLAT CABLE PITCH=2.54mm 1 16 PINS 60MM(10+3) HOUSINGFEMALE/MALE HOUSING P=2.5mm

1-51-372 SET, 12PINS 100mm 1

FEMALE/MALE

1-51-373 SET, 4PINS 200mm 1

FEMALE/MALE

1-51-374 SET, 3PINS 160mm 1

FEMALE/MALE

9-01-122 PCB, 2601-5P UL94V0 1

SWITCH PCB (230V)

KEY PCB SECTION

C34 1-12110LI E.CAP, 16V +-20% 5x11 10UF 1

C168, 173 1-12220KI 10V +-20% 6x11 220UF 2

C174 1-12247KI 10V +-20% 8x12 470UF 1

C175, 176 1-16031PH C.CAP, 50V+-10% 30PF NPO 2

PD1 1-05-039 PHOTO MODULE TSOP1838 1

R130, 132, 134, 1-17-147 RES, 1/8W+-5% PS 47 OHM T/B 9

136, 138, 140, 142, 144, 150

R147, 148 1-17-247 1/8W +-5% PS 470 OHM T/B 2

R153, 174 1-17-310 1/8W +-5% PS 1K OHM T/B 2

R151 1-17-351 1/8W +-5% PS 5.1K OHM T/B 1

R129, 131, 133, 1-17-410 1/8W +-5% PS 10K OHM T/B 13

135, 137, 139, 141, 143, 156, 157, 158, 159, 160

R161 1-17-447 1/8W +-5% PS 47K OHM T/B 1

R154 1-17-610 1/8W +-5% PS 1M OHM T/B 1

R152 1-17-147 1/8W +-5% PF 47 OHM 1

R145, 146, 149 1-17-247 1/8W +-5% PF 470 OHM 3

Q1, 2, 3, 4, 5, 6, 1-07-003 NPN NEC 9013H 8

7, 8

Q9, 10, 11, 12, 13 1-07-002 PNP NEC 9012H 5

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