Philips MX2600/77/78 User manual
CLASS 1
LASER PRODUCT
Service
Service
Service
Service
Service
MX2600/77/78
©Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise
without the prior permission of Philips.
Published by KC-ET0430 Service Audio Printed in The Netherlands Subject to modification
GB
Service Manual
3139 785 31910
VERSION 1.0
1-2
/77/78
RDS
Rotary Encoder (volume control) x
Aux Input x
Digital Output x
Line Output x
Progressive scan x
Power supply (110 / 220 V~) x
LOCATION OF PC BOARDS
VERSION VARIATION:
Type /Versions MX2600
Features &
Board in used:
MAIN PCB
TUNER PCB
PWR SW PCB
CONTROL PCB
POWER PCB
VOL PCB
PH PCB
SPECIFICATIONS
AMPLIFIER SECTION
PMPO Power ...........................................................2400W
Output power(Home Theater Mode) .........................200W
................................................................... 120W 1% THD
- Front ................................................................ 20 W 1x 2
- Rear ................................................................. 20 W 1x 2
- Centre ................................................................... 20 W 1
- Subwoofer ............................................................. 20W 2
Frequency Response ................. 180 Hz – 14 kHz / ±3 dB
Signal-to-Noise Ratio........................ > 60 dB (A-weighted)
Input Sensitivity
- AUX In...................................................................450 mV
- TV In .....................................................................450 mV
1 4 ohm, 160 Hz - 20 kHz, 1%THD
2 4 ohm, 40 Hz - 160 Hz, 1%THD
TUNER SECTION
Tuning Range ..................................... FM 87.5 – 108 MHz
............................................................ AM 530 – 1710 kHz
............................................................. AM 531 - 1602 kHz
26 dB Quieting Sensitivity ................................. FM 22 dBf
26 dB Quieting Sensitivity .......................... AM 5000 µV/m
IF Rejection Ratio ............................................... FM 60 dB
............................................................................ AM 24 dB
Signal-to-Noise Ratio.......................................... FM 50 dB
............................................................................ AM 30 dB
AM Suppression Ratio ........................................ AM 30 dB
Harmonic Distortion .......................................FM Mono 3%
..................................................................... FM Stereo 3%
................................................................................ AM 5%
Frequency Response ........................ FM 180 Hz – 10 kHz
Stereo Separation...................................FM 26 dB (1 kHz)
Stereo Threshold ............................................. FM 23.5 dB
DISC SECTION
Laser Type .................................................. Semiconductor
Disc Diametre .................................................. 12cm / 8cm
Video Decoding ................................... MPEG-2 / MPEG-1
Video DAC ............................................................... 10 Bits
Signal System .................................................. PAL / NTSC
Video Format ....................................................... 4:3 / 16:9
Video S/N ................................................ 56 dB (minimum)
Composite Video Output ............................ 1.0 Vp-p, 75 Ω
S-Video Output ...................................... Y - 1.0 Vp-p, 75 Ω
.......................................................... C - 0.286 Vp-p, 75 Ω
Audio DAC .................................................24 Bits / 96 kHz
Frequency Response ................ 4 Hz – 20 kHz (44.1 kHz)
...................................................... 4 Hz – 22 kHz (48 kHz)
Digital Output ..................................... SPDIF (Sony Philips
..................................................... digital interface) Coaxial
- Dolby Digital .................................IEC 60958, IEC 61937
1-3
MAIN UNIT
Power Supply Rating ..................... 110 / 220 V; 50 - 60Hz
Power Consumption ................................................. 110 W
Dimensions (w x h x d) ...................... 435 x 53 x 359 (mm)
Weight ..................................................................... 5.59 kg
FRONT SPEAKERS
Front/Rear speakers
System ..................................................................... 2 ways
Impedance .................................................................... 4 Ω
Speaker drivers ..............................3” full range with piezo
Frequency response ................................ 160 Hz – 20 kHz
Dimensions (w x h x d) ........................ 95 x 150 x 90 (mm)
Weight ........................................... 0.54 kg (Front speaker)
....................................................... 0.64 kg (Rear speaker)
(Front speakers are magnetically shielded)
SPEAKERS
System ....................................................................... 2 way
Impedance .................................................................... 4 Ω
Speaker drivers ..................3” full range woofer with piezo
Frequency response ................................ 160 Hz – 20 kHz
Dimensions (w x h x d) ........................ 250 x 94 x 84 (mm)
Weight ..................................................................... 1.05 kg
PASSIVE SUBWOOFER
Impedance .................................................................... 4 Ω
Speaker drivers ................................................ 6.5” woofer
Frequency response .................................. 40 Hz – 160 Hz
Dimensions (w x h x d) .................... 230 x 222 x 360 (mm)
Weight ..................................................................... 3.68 kg
Specifications subject to change without prior notice
1-4
LF Generator
e.g. PM5110
Recorder
Use Universal Test Cassette CrO2 SBC419 4822 397 30069
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
L
R
DUT
or Universal Test Cassette Fe SBC420 4822 397 30071
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
L
R
DUT
CD
Use Audio Signal Disc
(replaces test disc 3) SBC429 4822 397 30184
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
S/N and distortion meter
e.g. Sound Technology ST1700B
Frame aerial
e.g. 7122 707 89001
Tuner AM (MW,LW)
To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage.
Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).
RF Generator
e.g. PM5326
Ri=50Ω
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
RF Generator
e.g. PM5326
S/N and distortion meter
e.g. Sound Technology ST1700B
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Ri=50Ω
Tuner FM
MEASUREMENT SETUP
1-5
Service Tools:
Universal Torx driver holder .................................4822 395 91019
Torx bit T10 150mm ...........................................4822 395 50456
Torx driver set T6-T20 .........................................4822 395 50145
Torx driver T10 extended .....................................4822 395 50423
Compact Disc:
SBC426/426A Test disc 5 + 5A ...........................4822 397 30096
SBC442 Audio Burn-in test disc 1kHz .................4822 397 30155
SBC429 Audio Signals disc .................................4822 397 30184
Dolby Pro-logic Test Disc ....................................4822 395 10216
SERVICE AIDS
1-6
NL
WAARSCHUWING
Alle IC’s en vele andere halfgeleiders zijn
gevoelig voor electrostatische ontladingen
(ESD).
Onzorgvuldig behandelen tijdens reparatie kan
de levensduur drastisch doen verminderen.
Zorg ervoor dat u tijdens reparatie via een
polsband met weerstand verbonden bent met
hetzelfde potentiaal als de massa van het
apparaat.
Houd componenten en hulpmiddelen ook op
ditzelfde potentiaal.
I
AVVERTIMENTO
Tutti IC e parecchi semi-conduttori sono
sensibili alle scariche statiche (ESD).
La loro longevità potrebbe essere fortemente
ridatta in caso di non osservazione della più
grande cauzione alla loro manipolazione.
Durante le riparazioni occorre quindi essere
collegato allo stesso potenziale che quello della
massa dell’apparecchio tramite un braccialetto
a resistenza.
Assicurarsi che i componenti e anche gli utensili
con quali si lavora siano anche a questo
potenziale.
GB
Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified,
be used.
Safety components are marked by the symbol
!
.
NL
Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in
zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,
identiek aan de gespecificeerde, worden toegepast.
De Veiligheidsonderdelen zijn aangeduid met het symbol
!
.
F
Les normes de sécurité exigent que l’appareil soit remis à l’état
d’origine et que soient utiliséés les piéces de rechange identiques
à celles spécifiées.
Less composants de sécurité sont marqués
!
.
D
Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu
beachten. Der Original zustand des Geräts darf nicht verändert werden;
für Reparaturen sind Original-Ersatzteile zu verwenden.
Sicherheitsbauteile sind durch das Symbol
!
markiert.
I
Le norme di sicurezza esigono che l’apparecchio venga rimesso
nelle condizioni originali e che siano utilizzati i pezzi di ricambio
identici a quelli specificati.
Componenty di sicurezza sono marcati con
!
.
GB
After servicing and before returning set to customer perform a leakage
current measurement test from all exposed metal parts to earth ground
to assure no shock hazard exist, The leakage current must not
exceed 0.5mA.
CLASS 1
LASER PRODUCT
3122 110 03420
GB
Warning !
Invisible laser radiation when open.
Avoid direct exposure to beam.
S
Varning !
Osynlig laserstrålning när apparaten är öppnad och spärren
är urkopplad. Betrakta ej strålen.
SF
Varoitus !
Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
näkymättömälle laserisäteilylle. Älä katso säteeseen!
GB
WARNING
All ICs and many other semi-conductors are
susceptible to electrostatic discharges (ESD).
Careless handling during repair can reduce life
drastically.
When repairing, make sure that you are
connected with the same potential as the mass
of the set via a wrist wrap with resistance.
Keep components and tools also at this
potential.
F
ATTENTION
Tous les IC et beaucoup d’autres
semi-conducteurs sont sensibles aux
décharges statiques (ESD).
Leur longévité pourrait être considérablement
écourtée par le fait qu’aucune précaution n’est
prise à leur manipulation.
Lors de réparations, s’assurer de bien être relié
au même potentiel que la masse de l’appareil et
enfiler le bracelet serti d’une résistance de
sécurité.
Veiller à ce que les composants ainsi que les
outils que l’on utilise soient également à ce
potentiel.
ESD
D
WARNUNG
Alle ICs und viele andere Halbleiter sind
empfindlich gegenüber elektrostatischen
Entladungen (ESD).
Unsorgfältige Behandlung im Reparaturfall kan
die Lebensdauer drastisch reduzieren.
Veranlassen Sie, dass Sie im Reparaturfall über
ein Pulsarmband mit Widerstand verbunden
sind mit dem gleichen Potential wie die Masse
des Gerätes.
Bauteile und Hilfsmittel auch auf dieses gleiche
Potential halten.
DK Advarse !
Usynlig laserstråling ved åbning når sikkerhedsafbrydere er
ude af funktion. Undgå udsaettelse for stråling.
F
"Pour votre sécurité, ces documents doivent être utilisés par
des spécialistes agréés, seuls habilités à réparer votre
appareil en panne".
GB
ESD PROTECTION EQUIPMENT
Complete Kit ESD3 (small tablemat, wristband,
connection box, estention cable and earth cable ....... 4822 310 10671
Wristband tester ................................................................. 4822 344 13999
1-7
Pb(Lead) Free Solder
When soldering , be sure to use the pb free solder.
INDENTIFICATION:
Regardless of special logo (not always indicated)
onemusttreat all sets from 1Jan2005onwards,according
next rules:
Important note: In fact also products of year 2004 must
be treated in this way as long as you avoid mixing solder-
alloys (leaded/ lead-free). So best to always use SAC305
and the higher temperatures belong to this.
Due to lead-free technology some rules have to be
respected by the workshop during a repair:
•Use only lead-free solder alloy Philips SAC305 with
order code 0622 149 00106. If lead-free solder-paste
is required, please contact the manufacturer of your
solder-equipment. In general use of solder-paste
within workshops should be avoided because paste is
not easy to store and to handle.
•Use only adequate solder tools applicable for lead-
free solder alloy. The solder tool must be able
–To reach at least a solder-temperature of 400°C,
–To stabilize the adjusted temperature at the solder-
tip
–To exchange solder-tips for different applications.
•Adjust your solder tool so that a temperature around
360°C – 380°C is reached and stabilized at the solder
joint.Heating-timeofthesolder-joint should not exceed
~ 4 sec. Avoid temperatures above 400°C otherwise
wear-out of tips will rise drastically and flux-fluid will
be destroyed. To avoid wear-out of tips switch off un-
used equipment, or reduce heat.
•Mix of lead-free solder alloy / parts with leaded solder
alloy / parts is possible but PHILIPS recommends
strongly to avoid mixed solder alloy types (leaded and
lead-free).
If one cannot avoid or does not know whether product
is lead-free, clean carefully the solder-joint from old
solder alloy and re-solder with new solder alloy
(SAC305).
•Use only original spare-parts listed in the Service-
Manuals. Not listed standard-material (commodities)
has to be purchased at external companies.
•Special information for BGA-ICs:
–Always use the 12nc-recognizable soldering
temperature profile of the specific BGA (for de-
solderingalwaysusethelead-freetemperatureprofile,
in case of doubt)
–Lead free BGA-ICs will be delivered in so-called ‘dry-
packaging’ (sealed pack including a silica gel pack) to
protect the IC against moisture. After opening,
dependent of MSL-level seen on indicator-label in the
bag, the BGA-IC possibly still has to be baked dry.
(MSL=Moisture Sensitivity Level). This will be
communicated via AYS-website.
Do not re-use BGAs at all.
•For sets produced before 1.1.2005 (except products
of 2004), containing leaded solder-alloy and
components, all needed spare-parts will be available
till the end of the service-period. For repair of such
sets nothing changes.
•Onourwebsite www.atyourservice.ce.Philips.com
you find more information to:
•BGA-de-/soldering (+ baking instructions)
•Heating-profiles of BGAs and other ICs used in
Philips-sets
You will find this and more technical information
within the “magazine”, chapter “workshop news”.
For additional questions please contact your local
repair-helpdesk.
2-2
REPAIR INSTRUCTIONS (1 of 2)
2-2
2-3
REPAIR INSTRUCTIONS (2 of 2)
2-3
3-1
DISASSEMBLY INSTRUCTIONS
1) Open the DVD Tray by using the Open/Close Button
while the Set is ON and disconnect the mains supply after
removing the Tray Cover.
Note: Ifthisisnotpossible, the DVD Tray has to be open
manually.
Take a mini screw driver about 2mm diameter and make
a marking 24mm from the tip as shown in figure 2. place
the set on its side, insert the mini screw driver till the
marking and slide it towards the right as shown in figure
1 until the Tray moves out of the Front Panel.
Dismantling of the Front Panel Assembly
2) Return the set to its upright position and remove the Tray
Cover as shown in Figure 3 and close the tray manually
by pushing it back in.
3) Loosen 9 screws and remove the Top Cover by lifting the
rear portion upwards before sliding it out towards the rear.
-5screws on the back
-2screws each on the left & right side
4) Loosen 7 screws & lift up the top edge of Front Panel
assembly to free some catches before sliding it out
towards the front.
-4screws on the bottom
-1screw on the inside.
-1screw each on the left & right side
3-1
Figure 5
Dismantling of the Power Board
Figure 4
Figure 3
Figure 2
Figure 1
1) Loosen 4 screws "A" to remove the DVD Module as shown in figure 4.
Dismantling of the DVD Module
1) Loosen 2 screws "C" at the top of the Power Board as
shown in figure 5
2) Release 2 catches "B" at the top of the Power Board as
shown in figure 5
24mm
2mm
A
C
B
3-2
SERVICE POSITIONS
Service position A
Service position B
Note: In some service positions the components or copper patterns of one board may risk touching its neighbouring pc
boards or metallic parts. To prevent such short-circuit use a piece of hard paper or other insulating material between them.
3-2
Dismantling of the Main & Tuner PCB
1) Loosen 10 screw " D " at the back panel as shown in figure
6.
2) Loosen 4 screw " E " on the top of main board and loosen
2 screw on the bottom panel as shown in figure 7
Figure 6
Figure 7
E
D
E
4-1
BLOCK DIAGRAM
4-1
4-2
WIRING DIAGRAM
4-2
LFM114720-0001
LFM114720-0001
KEY (CONTROL / STANDBY /
VOL) BOARD
5-1
FTD DISPLAY PIN ASSIGNMENT
PIN CONNECTION
## Note ##
1. Fn: Filament pin
2. NP : No Pin
3. NX : No ExtendedPin
4. nG : Grid Pin
5. PN : Anode Pin
5-1
PIN NO.
CONNECTION
12345678910111213141516171819202122
31~2332333435
F1
F2 NP
P1P2P3P4P5P6P7P8P9
P10P11P13P12P14P15P16P17P18
NX9G8G7G6G5G4G3G2G1GF2
F1NPNP
36373839404142434445
NP 10G
a
b
c
d
e
f
g
hk
p
r
sm
n
j
(2G - 10G)
Dp
1G 2G3G4G5G6G7G8G9G10G 1G
P2
P1
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
10G 9G 8G 7G 6G 5G 4G 3G 2G 1G
a
b
c
d
e
f
g
h
j
k
m
p
n
r
s
a
b
c
d
e
f
g
h
j
k
m
p
n
r
s
a
b
c
d
e
f
g
h
j
k
m
p
n
r
s
a
b
c
d
e
f
g
h
j
k
m
p
n
r
s
a
b
c
d
e
f
g
h
j
k
m
p
n
r
s
a
b
c
d
e
f
g
h
j
k
m
p
n
r
s
a
b
c
d
e
f
g
h
j
k
m
p
n
r
s
a
b
c
d
e
f
g
h
j
k
m
p
n
r
s
a
b
c
d
e
f
g
h
j
k
m
p
n
r
s
Col Dp Col
5-2 5-2
CIRCUIT DIAGRAM - KEY BOARD
123456
123456
A
B
C
D
E
A
B
C
D
E
C2201 E1
C2202 E1
C2204 E1
C2206 D2
C2207 D2
C2208 C4
C2209 C4
C2212 D6
C2213 C5
C2214 A6
C2215 A6
C2216 A1
C2217 A1
C2218 B1
C2219 B2
C2220 B2
C2221 A4
C2222 A5
C2223 A3
C2224 B2
C22051 D1
D2201 C2
D2202 C3
DP2201 A4
IC2201 E2
IC2202 A2
LD2201 E6
Q2201 D2
Q2202 D3
Q2203 C4
Q2204 D5
Q2205 E5
R2201 D3
R2202 D3
R2203 D3
R2204 D3
R2205 D3
R2207 D3
R2208 D3
R2209 B5
R2210 D2
R2211 D2
R2212 D2
R2213 D2
R2214 E1
R2215 D1
R2217 D2
R2218 D4
R2219 C4
R2221 D5
R2222 C5
R2223 D6
R2224 D5
R2226 B5
R2227 B6
R2228 D5
R2231 D2
R2232 D2
R2233 D3
R2234 D3
R2235 D4
R2236 D3
R2237 D1
R2238 D1
R2239 D1
R2240 A2
R2241 A2
R2242 D1
R2243 D1
R2244 D1
R2245 A1
R2246 B1
R2247 B1
R2248 B1
R2249 B2
R2250 B2
R2251 B2
R2252 B2
R2253 E4
R2254 E5
R2255 E5
RB201 B6
RB202 C6
RB202A E5
RB202B E5
RB203A A6
RB203B A6
SN2201 C6
TA2201 D2
TA2202 C2
TA2203 C2
TA2204 C2
TA2205 C2
TA2206 D3
TA2207 D3
TA2208 E6
VR2201 A6
XL2201 E1
ZD2201 D3
ZD2202 D6
ZD2203 D6
RB202
C2224
104
PCB LAYOUT - KEY BOARD (BOTTOM)
5-3 5-3
PCB LAYOUT - KEY BOARD (TOP)
A
B
A
B
12345
12345
TA2207 B5
TA2208 B1
VR2201 B5
XL2201 A2
ZD2201 B2
A1 B1
C2204 A2
C2207 B1
C2208 B4
C2213 A3
C2217 B3
C2223 A3
D2201 A4
D2202 A4
DP2201 B3
LD2201 B1
R2228 B2
RB201 B2
RB202 B2
RB202A A1
RB202B A1
RB203A A5
RB203B A5
SN2201 A4
TA2201 B4
TA2202 A5
TA2203 B4
TA2204 B4
TA2205 A4
TA2206 B1
A2B2
A3 A4
A
B
A
B
12345
12345
ZD2202 A2
ZD2203 A2
C2201 A4
C2202 A4
C2206 B4
C2209 A2
C2212 A2
C2214 A1
C2215 A1
C2216 B3
C2218 B3
C2219 B3
C2220 B3
C2221 A4
C2222 A3
C2224 A3
C22051 B4
IC2201 B4
IC2202 B3
Q2201 A2
Q2202 B1
Q2203 B1
Q2204 B2
Q2205 A5
R2201 B4
R2202 B5
R2203 B5
R2204 B5
R2205 B5
R2207 A5
R2208 A4
R2209 B4
R2210 B4
R2211 A4
R2212 A4
R2213 A4
R2214 A4
SR2215 A4
R2216 A4
R2217 A4
R2218 A4
R2219 A2
R2221 B2
R2222 A2
R2223 A2
R2224 B2
R2226 A1
R2227 A1
R2231 B2
R2232 A2
R2233 B1
R2234 A1
R2235 B1
R2236 B1
R2237 A4
R2238 B4
R2239 B4
R2240 B4
R2241 B3
R2242 B4
R2243 A4
R2244 A4
R2245 A3
R2246 A3
R2247 B3
R2248 B3
R2249 B2
R2250 B1
R2251 A1
R2252 B1
R2253 A5
R2254 A5
R2255 A5
R2256 B2
00003.8 3.8 0 3.8 3.7 0000 019.7 -22.2 -22 -11.2 -19.9 -17.8
-21 -15.6 -13.4 -20 -13.4 -20 -22.4 -18 -20.3 -13.6 -15.8 -11.4 -4.6 -22.6 -20.4
004.6
5.1 0
-20.4 -20.4 -20.4 -20.4 -20.4
-20.4
-20.4 -20.4
-20.5 4.6
4.6
4.64.64.6
5.1
5.1 5.1
0
5.1
00
4.9 4.9 5.2 00 0 000
PIN 1234567891011121314151617181920
VOLTAGE
PIN 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
VOLTAGE
PIN 41 42 43 44 45 46 47 48 49 50 51 52
VOLTAGE
PIN 12345678910111213141516
VOLTAGE
17 18
IC2202 (TP6311)
IC2201 (HT480051)
PIN 1 2 3
VOLTAGE
Q2201 (2SA733)
550
550
PIN 1 2 3
VOLTAGE
Q2204 (2SC1623)
550 550
PIN 1 2 3
VOLTAGE
Q2202 (2SA733)
PIN 1 2 3
VOLTAGE
Q2203 (2SA733)
4.6 4.2 4.2
PIN 1 2 3
VOLTAGE
Q2205 (2SA733)
TUNER BOARD
6-1
TUNER ADJUSTMENT TABLE
Waverange Input frequency Input Tuned to Adjust Output Scope/Voltmeter
VARICAP ALIGNMENT
AM IF
AM RF
3)
108MHz
87.5MHz check
6.5V±1.2V
1.0V ±0.5V
T002
FM
87.5 - 108MHz
(50kHz grid)
1602KHz
531KHz T005 1.1V
±
0.5V
FM
612kHz576kHz
1404kHz
T006
1404kHz VC001
AM
FM - IF
No need
to adjust
FM 10.7MHz, 50mV
continuous wave
1)
If sensitivity of frequency counter is too low adjust to max. channel separation
(input signal: stereo left 90% + 9%, adjust output on right channel to minimum)
2)
RC network serves for damping the IF-filter while
adjusting the other one.
3)
For AM RF adjustments the original frame antenna has to be used!
max.
symmetric
f
o
max.
symmetric
f
o
∆f = ±30kHz
V
RF
as low as
possible
200P
short circuit
to block AFC
23
IC001
R220
100nF
24
IC001
450kHz
Connect pin 29 of
IC001 (AM Osc.)
with short wire to
ground (pin 6)
AM AFC
MW
∆f = ±15kHz
V
RF
= 3mV
Use Service Testprogram. By selecting the TUNER TEST test frequencies will be stored as preset frequencies automatically.
1700KHz
530KHz
AM
530-1710kHz
(10kHz grid)
FM - RF
7.8V ±0.2V
108MHz
87.5MHz
MAX
mod=1kHz
∆f=±22.5kHz
106MHz
90.1MHz
610kHz
1400kHz
T006
VC002
MW
610kHz
1400kHz
( 21L / 21L / 37S ) 8.0V 1HV
±
±
1.1V 0.2V
Max
fo
Symmetric
check
check
check
T005
VC001
L001 MAX
MAX
T001
MAX
T003
V=mV
∆
6-1
CIRCUIT DIAGRAM - TUNER BOARD
6-2 6-2
A
B
C
A
B
C
12 34
12 34
ANT001 A1
C002 A1
C005 A1
C007 A2
C006 B2
C008 B2
C009 B2
C01 C4
C02 C3
C03 A2
C010 B1
C011 C1
C012 B2
C013 C2
C014 C1
C015 C1
C016 C1
C019 A2
C020 B3
C021 C2
C022 C2
C023 C2
C024 C2
C025 C2
C026 C2
C029 C3
C030 C3
C031 C2
C032 A3
C033 B3
C034 C3
C035 B2
C036 B4
C037 B3
C038 B4
C039 C4
C040 B3
C041 B3
C042 B4
C043 B4
C044 B3
C047 A1
C048 B1
C0501 A2
CN001 C4
CN002 B1
D001 A1
D002 A1
D003 A4
D004 C3
D005 B1
IC001 B3
IF001 A3
IF002 A3
IF003 C3
L02 B1
L001 A2
Q001 B3
Q002 B4
Q003 A2
R001 A1
R002 B1
R004 A2
R005 B2
R006 A1
R010 C1
R011 C1
R015 B2
R016 B4
R017 C2
R018 B3
R019 C3
R020 B4
R021 C4
R023 B4
R024 B2
R025 C3
R026 C3
R027 B3
R028 B4
R029 B4
R030 B4
R032 B3
R033 A2
T001 A2
T002 A4
T003 A4
T005 C1
T006 B1
VC001 A2
VC002 B1
VD001 B1
VD002 A1
VD003 B1
VD004 C1
VR001 B2
XL1 B3
6-3 6-3
PCB LAYOUT - TUNER BOARD (TOP)
X
WW
W
W
W
W
W
A
B
A
B
123
123
ANT001 B1
C005 A1
C006 A2
C007 B1
C009 A2
C019 B1
C024 B2
C025 B2
C030 B3
C035 A2
C047 A1
CN001 B3
CN002 A1
D001 A1
D002 A1
D003 B2
D004 B3
D005 A1
IC001 B2
IF001 B1
IF002 B2
IF003 A2
JWP2 B1
JWP3 A3
JWP4 A3
JWP5 B2
JWP6 B3
JWP7 B2
JWP8 A3
JWP9 B3
L02 A2
L001 B1
Q001 A3
Q002 B2
R018 B3
T001 B1
T002 B2
T003 B2
T005 A2
T006 A1
VC001 A1
VC002 A1
VD001 A2
VD002 A1
VD003 A1
VD004 A2
VR001 A3
XL1 B2
Table of contents