Philips Communication & Security Systems
Supply Centre Breda
Customer Support
The Netherlands
COPYRIGHT (c) Philips Electronics N.V. 1994
Printed in the Netherlands
Supply Centre Breda |
SQ 20 Amplifiers |
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CONTENTS |
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CHAPTER |
DESCRIPTION |
PAGE |
1 |
INTRODUCTION |
3 |
1.1 |
GENERAL |
3 |
1.2 |
THE SQ20 RANGE |
3 |
2 |
TECHNICAL DATA |
4 |
3 |
INSTALLATION INSTRUCTIONS |
4 |
4 |
CHECKING AND ADJUSTING |
5 |
5 |
CIRCUIT DESCRIPTION |
6 |
5.1 |
DIFFERENCE BETWEEN THE SEVERAL OUTPUT-STAGE’S |
6 |
6 |
SPARE PARTS |
7 |
6.1 |
RECOMMENDED SPARE-PARTS TOTAL SQ 20 SERIES |
8 |
6.2 |
SPARE-PARTS, LISTED PER TYPE-NUMBERS |
9 |
6.2.1 |
LBB 1227/00 |
9 |
6.2.2 |
LBB 1228/00 |
9 |
6.2.3 |
LBB 1229/00 |
10 |
6.2.4 |
LBB 1230/00 |
11 |
6.2.5 |
LBB 1231/00 |
12 |
6.2.6 |
LBB 1232/00 |
13 |
6.2.7 |
LBB 1233/00 |
14 |
6.2.8 |
LBB 1234/00 |
15 |
6.2.9 |
LBB 1235/00 |
16 |
6.2.10 |
LBB 1236/00 |
17 |
6.2.11 |
LBB 1237/00 |
18 |
6.2.12 |
LBB 1238/00 |
19 |
6.2.13 |
LBB 1240/00 |
20 |
Service documentation 4822 733 24416 |
14 February 1994 |
- 1 -
SQ 20 Amplifiers |
Supply Centre Breda |
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CONTENTS (cont’d) |
7 |
DRAWINGS |
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FIGURE: (as appendix) |
7.1 |
LBB 1229/00 WIRING-DIAGRAM |
7.2 |
LBB 1229/00 CIRCUIT-DIAGRAM PART 1 |
7.3 |
LBB 1229/00 CIRCUIT-DIAGRAM PART 2 |
7.4 |
LBB 1229/00 PRINTED CIRCUIT BOARD LAY-OUT |
7.4.1LBB 1230/00 CIRCUIT DIAGRAM PART 1
7.5 |
LBB 1230/00 CIRCUIT DIAGRAM PART 2 |
7.6 |
LBB 1230/00 PRINTED CIRCUIT BOARD LAY-OUT PART 1 |
7.7 |
LBB 1230/00 PRINTED CIRCUIT BOARD LAY-OUT PART 2 |
7.8 |
LBB 1231/00, -1232/00, -1233/00 CIRCUIT DIAGRAM PART 1 |
7.9 |
LBB 1231/00, -1232/00, -1233/00 CIRCUIT DIAGRAM PART 2 |
7.10 |
LBB 1231/00, LBB 1232/00, LBB 1233/00 PCB LAY-OUT PART 1 |
7.11 |
LBB 1231/00, LBB 1232/00, LBB 1233/00 PCB LAY-OUT PART 2 |
7.12 |
LBB 1234/00, LBB 1235/00 CIRCUIT DIAGRAM |
7.13 |
LBB 1234/00, LBB 1235/00 PCB LAY-OUT |
7.14 |
LBB 1237/00, LBB 1238/00 CIRCUIT DIAGRAM PART 1 |
7.15 |
LBB 1237/00, LBB 1238/00 CIRCUIT DIAGRAM PART 2 |
7.16 |
LBB 1237/00, LBB 1238/00 CIRCUIT DIAGRAM PART 3 |
7.17 |
LBB 1237/00, LBB 1238/00 CIRCUIT DIAGRAM PART 4 |
7.18 |
LBB 1237/00, LBB 1238/00 CIRCUIT DIAGRAM PART 5 |
7.19 |
LBB 1237/00, LBB 1238/00 PCB LAY-OUT PART 1 |
7.20 |
LBB 1237/00, LBB 1238/00 PCB LAY-OUT PART 2 |
7.21 |
LBB 1237/00, LBB 1238/00 PCB LAY-OUT PART 3 |
8. |
ADDITIONAL TYPE NUMBERS (SERVICE INFORMATION) |
8.1 |
LBB 1227/00 UNIVERSAL PRE-AMPLIFIER |
8.2 |
LBB 1228/00 CASSETTE UNIT |
8.3 |
LBB 1236/00 SYSTEM PRE-AMPLIFIER |
8.4 |
LBB 1240/00 240 W BOOSTER AMPLIFIER |
9. |
GENERAL SERVICE INFORMATIONS |
SERVICE DOCUMENTATION 4822 733 24416 |
14 February 1994 |
- 2 -
Supply Centre Breda |
SQ 20 Amplifiers |
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1 INTRODUCTION
l.l. GENERAL
The SQ20 range of high performance audio mixing, pre-mixing, booster and system amplifiers have been designed for use in a wide variety of Public Address environments. Ease of operation, combined with good service-accessibility have been optimised in their design.
1.2. THE SQ 20 RANGE
The SQ20 range consists of the following products:
LBB 1227/00 |
Universal Pre-Amplifier |
: SI 4822 861 05025 |
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LBB 1228/00 |
Cassette Unit |
: SI 4822 861 05012 |
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LBB 1229/00 |
Tuner-unit |
: SM 4822 733 24416 |
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LBB 1230/00 |
Pre-Mixing Amplifier |
: : |
“ |
“ |
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LBB 1231/00 |
30 |
Watt Mixing Amplifier |
: : |
“ |
“ |
LBB 1232/00 |
60 |
Watt Mixing Amplifier |
: : |
“ |
“ |
LBB 1233/00 |
120 Watt Mixing Amplifier |
: : |
“ |
“ |
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LBB 1234/00 |
60 |
Watt Booster Amplifier |
: : |
“ |
“ |
LBB 1235/00 |
120 Watt Booster Amplifier |
: : |
“ |
“ |
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LBB 1236/00 |
System Pre-Amplifier |
: SI 4822 861 05019 |
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LBB 1237/00 |
60 Watt System Amplifier |
: SM 4822 733 24416 |
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LBB 1238/00 |
120 Watt System Amplifier |
: : |
“ |
“ |
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LBB 1239/00 |
Mounting-brackets |
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“ |
“ |
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LBB 1240/00 |
240 Watt Booster Amplifier |
: SI 4822 861 05039 |
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Note: SM -> Service manual
SI -> Service information
All relevant service information for the products can be found in the bulletins listed above. Not included in this manual are the callstation(s) LBB 9427/10, LBB 9527/10 and LBB 9527/60. The LBB 9427/10, and the new colour-item LBB 9527/10, are described within service manual: 4822 733 24437.
The LBB 9527/60 is described within a service information: 4822 861 05002.
This Service Manual is intended to provide all necessary information to carry out corrective maintenance according to agreed policies. Spare parts are defined accordingly. In general this means repair on sub assembly level. Component level repair can only be allowed where it can be carried out on a cost-effective way.
Service documentation 4822 733 24416 |
14 February 1994 |
- 3 -
SQ 20 Amplifiers |
Supply Centre Breda |
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2 TECHNICAL DATA
Figure 2.1 upto and including 2.4 give all relevant data for SQ20 products.
For products for which service information is released through SI’s this information can be found in chapter 8.
3 INSTALLATION INSTRUCTIONS
-Opening the amplifier
Access can be gained to the inner side of the amplifier by removing the top cover.
Care should be taken not to lose the toothed washers which are fitted underneath the screws. For safety reasons these washers are required to electrically bond the top cover to the earthed chassis of the amplifier. And must therefore always be fitted.
Warning !: Before removing the cover, disconnect the amplifier from the mains supply by removing the mains plug!
-19” Rack Mounting
The range of SQ20 system amplifiers have been designed for both tabletop and 19” rack mounting. Two mounting brackets (LBB 1239/00) can be ordered when rack mounting is required.
To attach the mounting brackets, first remove the top cover as described.
Locate the two screw holes provided for at both sides of the amplifier. Using the also added screws, firmly mount the brackets to the amplifier.
CAUTION !: |
SQ20 amplifiers are not suitable for any surveillance application with e.g. 20kHz. |
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It is essential that the SQ 20 products are used within the specified temperature range. |
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The maximum permissible temperature is + 45°C. Care has to be taken that when they |
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are mounted within a 19” cabinet the air inside the 19” cabinet never exceeds the above |
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mentioned maximum temperature. |
SERVICE DOCUMENTATION 4822 733 24416 |
14 February 1994 |
- 4 -
Supply Centre Breda |
SQ 20 Amplifiers |
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-Mains connections and earthing
The system amplifiers are supplied ready for use on 220 V a.c. mains. They are adjustable for use on 110 V, 127 V, 220 V –230 V and 240 V by resoldering the brown wire onto the appropriate tag on the mains transformer (T). The protective shield on the mains transformer should never be removed. Care should be taken to ensure that the wire is hooked in, and firmly soldered onto the tag.
A non restoring thermal fuse, located in the mains transformer, will disconnect the mains supply, should the mains transformer overheat.
CAUTION: |
The amplifier must be tapped for the correct mains voltage, as described, before |
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connecting it to the mains supply. On delivery the amplifier is supplied with a 2m long |
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3-core mains lead, terminated at one end with a 2 pole mains plug with earth contacts, |
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and at the other end with a C.E.E connector. In some countries it may be necessary to |
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replace the mains plug with one of a local standard type. A replacement plug must be |
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wired as follows: |
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Earth - green/yellow |
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Neutral - blue |
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Live - brown |
WARNING !: |
This amplifier must be powered via an earthed mains outlet |
WARNING !: |
This fusable link operates on the primary winding of the mains transformer, and |
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although the mains indicator LED may be off the full mains supply voltage is still |
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present inside the amplifier. |
4 CHECKING AND ADJUSTING
See Instructions for use which are always included in the same package as the product.
Service documentation 4822 733 24416 |
14 February 1994 |
- 5 -
SQ 20 Amplifiers |
Supply Centre Breda |
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5 CIRCUIT-DESCRIPTION
Detailed circuit descriptions are not included in this manual. The used technique for this amplifiers in combination with the selected spare parts makes this not necessary. The knowledge of the workshopengineer should be at the required level.
5.1 DIFFERENCE BETWEEN THE SEVERAL OUTPUT-STAGE’S:
AMPLIFIER-MODEL |
30W |
60W |
120W |
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MIXING- |
LBB 1231/00 |
1232/00 |
1233/00 |
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BOOSTER- |
LBB |
1234/00 |
1235/00 |
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SYSTEM- |
LBB |
1237/00 |
1238/00 |
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ITEM |
30W |
60W |
120W |
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R150, R156 |
- |
- |
4,7Ω |
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R155, R158 |
- |
- |
1,5k Ω |
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R149, R166 |
470 Ω |
1k Ω |
1,5k Ω |
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R144 |
4,7 kΩ |
5,6kQ |
5,6k Ω |
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C201 |
4700uF |
6800uF |
4700uF |
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C207 |
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4700uF |
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F201 |
F 5A |
F 8A |
F 10A |
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F202 |
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F 10A |
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F001 |
T 1A |
T 1,6A |
T 2,5A |
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R501 |
330 Ω |
180 Ω |
100 Ω ALL 5W |
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SERVICE DOCUMENTATION 4822 733 24416 |
14 February 1994 |
- 6 -
Supply Centre Breda |
SQ 20 Amplifiers |
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6 SPARE-PARTS
General:
The spare-parts, as indicated in the following lists, are selected components / sub assemblies. The spare-parts are available from Philips Consumer Service.
The mentioned spare-parts, used within the several products of the SQ20 range, are NOT listed with the so-called ’pos.’ numbers. Instead of, we have used the commercial code number of the component. E.g. Transistor Q302 which has a commercial indicator C458 is listed as “transistor C458 NPN with a 5322.. number-, and NOT as “pos. Q302”, with a 5322.. number.
Service documentation 4822 733 24416 |
14 February 1994 |
- 7 -
SQ 20 Amplifiers |
Supply Centre Breda |
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6.1 RECOMMENDED SPARE-PARTS TOTAL SQ 20 SERIES:
Tuner PCB assy. (LBB 1229-1236-1237-1238) |
5322 214 11157 |
Tuner-Meter |
5322 344 50118 |
Battery connector |
5322 265 30875 |
Mains switch |
5322 277 11136 |
Mains inlet |
5322 265 30876 |
Thermistor SDT 09 |
5322 116 30414 |
Mains transformer (LBB 1227-1229-1230) |
5322 146 10331 |
Mains transformer PT-SQ20-30W |
5322 140 60291 |
Output transformer 30 W |
5322 146 10327 |
Mains transformer PT-SQ20-60W |
5322 146 10332 |
Output transformer 60 W |
5322 146 10333 |
Mains transformer PT-SQ20-120W |
5322 146 10334 |
Output transformer 120 W |
5322 140 60332 |
Mains transformer (LBB 1236) |
5322 148 20024 |
Output transformer 240 W (OT-SQ20-240W) |
5322 140 10481 |
Transistor C485 NPN |
5322 130 62667 |
Transistor A673 PNP |
4822 130 41412 |
Operational amplifier LF 353 |
5322 209 81395 |
Operational amplifier LM 324 |
4822 209 80587 |
Integrated circuit BA 6144 |
4822 209 73037 |
Integrated circuit NJM 386 D |
5322 209 72458 |
Diode 1 N 60 Germanium |
4822 130 80562 |
Diode 1 N4148 (BAW 62) |
4822 130 30613 |
Power-transistor C3281 |
5322 130 62673 |
Pre-amplifier integrated circuit OQ 0703 |
5322 209 63972 |
Fan-motor |
5322 361 10598 |
Fuses: F 0,5 A |
4822 070 35001 |
T 0,5 A |
4822 070 15001 |
T 1,0 A |
4822 070 31002 |
T 1,6A |
4822 070 31602 |
T 2,0 A |
4822 070 32002 |
T 2,5 A |
4822 070 32502 |
T 3,15 A |
4822 070 33152 |
F 5,0 A |
5322 253 40055 |
T 5,0 A |
4822 070 35002 |
F 8,0 A |
5322 253 40034 |
F 10 A |
4822 070 61003 |
Handgrip (2 pcs. incl. screws) |
5322 498 50319 |
SERVICE DOCUMENTATION 4822 733 24416 |
14 February 1994 |
- 8 -
Supply Centre Breda |
SQ 20 Amplifiers |
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6.2 SPARE-PARTS listed per type-number:
6.2.1 SPARE-PARTS LBB 1227/00 SQ-20 UNIVERSAL PRE-AMPLIFIER
P.C.B assy. (27-1) |
5322 214 91079 |
P.C.B assy. (27-2) |
5322 214 91081 |
P.C.B assy. (27-3) |
5322 214 91082 |
Mains transformer |
5322 146 10331 |
Mains switch |
5322 277 11136 |
Mains inlet |
5322 265 30876 |
Rotary switch |
5322 273 80347 |
Knob (volume) |
5322 414 30152 |
Knob (tone control) |
5322 414 30183 |
Handgrip (2 pcs. incl. screws) |
5322 498 50319 |
6.2.2 SPARE-PARTS LBB 1228/00 SQ-20 CASSETTE UNIT
P.C.B assy. (SQ20 28-1) |
5322 214 11226 |
Integrated circuit (U2) TA 7668 BP |
4822 209 71873 |
Front panel |
5322 447 50154 |
Complete cassette player (commercial item) |
LBB 1228/50 |
19” mounting brackets (commercial item) |
LBB 1239/00 |
Service documentation 4822 733 24416 |
14 February 1994 |
- 9 -
SQ 20 Amplifiers |
Supply Centre Breda |
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6.2.3 SPARE-PARTS LBB 1229/00 SQ-20 TUNER-UNIT
Tuner PCB assy. |
5322 214 11157 |
Tuner-Meter |
5322 344 50118 |
Tuner channel-selector switch |
5322 210 10424 |
Loudspeaker |
5322 240 40196 |
Mains transformer (PT-SQ20-PM) |
5322 146 10331 |
Mains switch |
5322 277 11136 |
Mains inlet |
5322 265 30876 |
Fuse (5A) |
5322 253 40055 |
Battery connector |
5322 265 30875 |
Potentiometer (50K) |
5322 101 11138 |
Transistor C485 NPN |
5322 130 62667 |
Transistor A673 PNP |
4822 130 41412 |
Operational amplifier LF 353 |
5322 209 81395 |
Integrated circuit BA 6144 |
4822 209 73037 |
Integrated circuit NJM 386 D |
5322 209 72458 |
Diode 1 N 60 Germanium |
4822 130 80562 |
Diode BAW 62 |
4822 130 30613 |
Diode 1N4148 |
4822 130 30621 |
Front panel |
5322 447 50146 |
Handgrip (2pcs. incl. screws) |
5322 498 50319 |
Knob (Ø 14) |
5322 414 30183 |
Jack-plug (PJ-202 NP) |
5322 265 20515 |
Phone jack (HT J064-03) |
5322 267 10273 |
Phone jack |
5322 267 10276 |
SERVICE DOCUMENTATION 4822 733 24416 |
14 February 1994 |
- 10 -
Supply Centre Breda |
SQ 20 Amplifiers |
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6.2.4 SPARE-PARTS LBB 1230/00 SQ-20 PRE-MIXING AMPLIFIER
PCB assy. (SQ20-3) |
5322 214 11211 |
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PCB assy. (SQ20-7) |
5322 214 11212 |
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Mains transformer PT SQ.20-PM |
5322 146 10331 |
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Main switch |
5322 277 11136 |
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Mains inlet 4300-1002 |
5322 265 30876 |
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Battery connector (incl. fuse) DT55A02W-02 |
5322 265 30875 |
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Fuses: F 0,5 A |
4822 070 35001 |
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T 1 A |
4822 070 31002 |
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T 0,5 A |
4822 070 15001 |
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Potentiometer RK163111A152 |
5322 101 11139 |
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Potentiometer RK163111R376 |
5322 101 11138 |
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Transistor C485 NPN |
5322 130 62667 |
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Transistor A673 PNP |
4822 130 41412 |
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Operational amplifier LF 353 |
5322 209 81395 |
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Integrated circuit BA 6144 |
4822 209 73037 |
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Integrated circuit NJM 386 D |
5322 209 72458 |
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Diode 1 N 60 Germanium |
4822 130 80562 |
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Diode BAW 62 |
4822 130 30613 |
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Diode 1N4148 |
4822 130 30621 |
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Front panel |
5322 447 50153 |
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Handgrip (2 pcs. incl. screws) |
5322 498 50319 |
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Knob (Ø |
18) |
5322 414 30152 |
Knob (Ø |
14) |
5322 414 30183 |
Jack plug PJ-202NP |
5322 265 20515 |
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Phone Jack HTJ064-03 |
5322 267 10273 |
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DIN 5 pol DJ-005 |
5322 267 10272 |
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Service documentation 4822 733 24416 |
14 February 1994 |
- 11 -
SQ 20 Amplifiers |
Supply Centre Breda |
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6.2.5 SPARE-PARTS LBB 1231/00 SQ-20 30 W MIXING AMPLIFIER
PCB assy. Main 30W |
(SQ20-1) |
5322 214 11213 |
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PCB assy. Pre-input |
(SQ20-7) |
5322 214 11212 |
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PCB assy. Power supply |
(SQ20-2) |
5322 214 11218 |
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Mains transformer 30W |
|
5322 140 60291 |
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Main switch |
|
5322 277 11136 |
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Mains inlet |
|
5322 265 30876 |
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Thermistor SDT 09 |
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5322 116 30414 |
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Battery conn. incl. fuse |
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5322 265 30875 |
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Fuses: F 5,0 A |
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5322 253 40055 |
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T 2,0 A |
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4822 070 32002 |
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T 1,0 A |
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4822 070 31002 |
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Output transformer 30 W |
|
5322 146 10327 |
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Potentiometer A152 |
|
5322 101 11139 |
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Potentiometer R376 |
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5322 101 11138 |
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Transistor C485 NPN |
|
5322 130 62667 |
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Transistor D673 PNP |
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4822 130 41412 |
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Transistor D613E NPN |
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5322 130 62961 |
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Transistor D667 NPN |
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5322 130 43371 |
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Power-transistor C3281 |
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5322 130 62673 |
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Power-transistor 2SD718(0) |
5322 130 62836 |
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Pre-amplifier integrated circuit OQ 0703 |
5322 209 63972 |
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Operational amplifier LF 353 |
5322 209 81395 |
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Integrated circuit BA 6144 |
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4822 209 73037 |
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Integrated circuit NJM 386 D |
5322 209 72458 |
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Diode 1 N 60 Germanium |
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4822 130 80562 |
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Diode D 1502 |
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5322 130 82533 |
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Diode BAW 62 |
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4822 130 30613 |
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Diode 1N4148 |
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4822 130 30621 |
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Diode P600D |
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5322 130 82746 |
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Front panel |
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5322 447 50144 |
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Handgrip (2pcs. incl. screws) |
5322 498 50319 |
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Knob (Ø |
18) |
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5322 414 30152 |
Knob (Ø |
14) |
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5322 414 30183 |
Jack plug |
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5322 265 20515 |
5P DIN |
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5322 267 10272 |
Phone Jack |
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5322 267 10273 |
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Made-and-lock 6 pol. |
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5322 267 40995 |
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SERVICE DOCUMENTATION 4822 733 24416 |
14 February 1994 |
- 12 -
Supply Centre Breda |
SQ 20 Amplifiers |
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6.2.6 SPARE-PARTS LBB 1232/00 SQ-20 60 W MIXING AMPLIFIER
PCB assy. Main 60W |
(SQ20-1) |
5322 214 11214 |
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PCB assy. Pre-input |
(SQ20-7) |
5322 214 11212 |
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PCB assy. Power supply |
(SQ20-2) |
5322 214 11219 |
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Mains transformer 60 W |
|
5322 146 10332 |
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Mains switch |
|
5322 277 11136 |
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Mains inlet |
|
5322 265 30876 |
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Battery conn. incl. fuse |
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5322 265 30875 |
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Thermistor SDT 09 |
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5322 116 30414 |
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Fuses: F 8,0 A |
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5322 253 40034 |
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T 3,15 A |
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4822 070 33152 |
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T 1,6 A |
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4822 070 31602 |
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Output transformer 60 W |
|
5322 146 10333 |
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Potentiometer A152 |
|
5322 101 11139 |
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Potentiometer R376 |
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5322 101 11138 |
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Transistor C485 NPN |
|
5322 130 62667 |
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Transistor A673 PNP |
|
4822 130 41412 |
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Transistor D613E NPN |
|
5322 130 62691 |
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Transistor D667 NPN |
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4822 130 43371 |
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Power-transistor C3281 |
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5322 130 62673 |
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Pre-amplifier integrated circuit OQ 0703 |
5322 209 63972 |
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Operational amplifier LF 353 |
5322 209 81395 |
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Integrated circuit BA 6144 |
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4822 209 73037 |
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Integrated circuit NJM 386 D |
5322 209 72458 |
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Diode 1 N 60 Germanium |
|
4822 130 80562 |
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Diode D 1502 |
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5322 130 82533 |
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Diode BAW 62 |
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4822 130 30613 |
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Diode 1 N4148 |
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4822 130 30621 |
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Diode P600D |
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5322 130 82746 |
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Front panel |
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5322 447 50144 |
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Handgrip (2 pcs. incl. screws) |
5322 498 50319 |
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Knob (Ø |
18) |
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5322 414 30152 |
Knob (Ø |
14) |
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5322 414 30183 |
Jack plug |
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5322 265 20515 |
Phone JACK |
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5322 267 10273 |
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SP DIN |
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5322 267 10272 |
Made-and-lock 6 pol. |
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5322 267 40995 |
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Service documentation 4822 733 24416 |
14 February 1994 |
- 13 -
SQ 20 Amplifiers |
Supply Centre Breda |
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6.2.7 SPARE-PARTS LBB 1233/00 SQ-20 120 W MIXING AMPLIFIER
PCB assy. Main 120W |
(SQ20-1) |
5322 214 11215 |
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PCB assy. Pre-input |
(SQ20-7) |
5322 214 11212 |
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PCB assy. Power supply |
(SQ20-2) |
5322 214 11221 |
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Mains transformer 120 W |
|
5322 146 10334 |
|
Mains switch |
|
5322 277 11136 |
|
Mains inlet |
|
5322 265 30876 |
|
Thermistor SDT 09 |
|
5322 116 30414 |
|
Battery conn. incl. fuse |
|
5322 265 30875 |
|
Fuses: |
F 10 A |
|
4822 070 61003 |
|
T 5,0 A |
|
4822 070 35002 |
|
T 2,5 A |
|
4822 070 32502 |
Output transformer 120 W |
5322 140 60332 |
||
Fan-motor |
|
5322 361 10598 |
|
Potentiometer A152 |
|
5322 101 11139 |
|
Potentiometer R376 |
|
5322 101 11138 |
|
Transistor C485 NPN |
|
5322 130 62667 |
|
Transistor A673 PNP |
|
4822 130 41412 |
|
Transistor D613E NPN |
|
5322 130 62961 |
|
Transistor D667 NPN |
|
4822 130 43371 |
|
Power-transistor C3281 |
|
5322 130 62673 |
|
Pre-amplifier integrated circuit OQ 0703 |
5322 209 63972 |
||
Operational amplifier LF 353 |
5322 209 81395 |
||
Integrated circuit BA 6144 |
|
4822 209 73037 |
|
Integrated circuit NJM 386 D |
5322 209 72458 |
||
Diode 1 N 60 Germanium |
|
4822 130 80562 |
|
Diode D 1502 |
|
5322 130 82533 |
|
Diode BAW 62 |
|
4822 130 30613 |
|
Diode 1 N4148 |
|
4822 130 30621 |
|
Front panel |
|
5322 447 50144 |
|
Handgrip (2 pcs. incl. screws) |
5322 498 50319 |
||
Knob (Ø |
18) |
|
5322 414 30152 |
Knob (Ø |
14) |
|
5322 414 30183 |
Jack plug |
|
5322 265 20515 |
|
Phone jack |
|
5322 267 10273 |
|
5P DIN |
|
|
5322 267 10272 |
Made-and-lock 6 pol. |
|
5322 267 40995 |
|
SERVICE DOCUMENTATION 4822 733 24416 |
14 February 1994 |
- 14 -
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