Philips Mcm 9 Service Manual
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DISMANTLING INSTRUCTIONS Dismantling of the Cover Cassette and Universal Loader 1) Remove the Cover Cassette (pos 150) in the direction as shown in Figure 1. 2) Loosen 4 screws to remove the Cover Top (pos 240) by sliding it out towards the rear before lifting up. - 2 screws on the rear - 1 screw each on the left & right side 3) Loosen 2 screws each to remove the Panel Left (pos 180) and Panel Right (pos 181). The Panels are removed by sliding it towards the rear and outwards. - 1 screw on the rear - 1 screw on the side - see Service position A 4) Use a screw driver to give a push in the direction as shown in Figure 2 and Figure 2A to unlock the Loader Tray before sliding it out. 5) Slide out the Loader Tray and remove the Cover CD (pos 110 + pos 111) in the direction as shown in Figure 3. 6) Loosen 4 screws A (see Figure 4) to remove the Bracket Module Mounting (pos 156) and Universal Loader (pos 1103). - 2 screws each on the left & right side Detaching the Universal Loader from the Bracket Module Mounting 2-12-1 Figure 1 Figure 2 Figure 3Figure 4Figure 6 Figure 7A Figure 7 1) Remove 2 screws C (see Figure 6) from the bottom of the Cabinet Front (pos 101). Detaching the Front Panel assembly from the Bottom/Rear assembly 2) Release the fixation of the Combi Board (pos1102-1003) to Bracket Combi (pos 155) by releasing the 2 catches C1 (see Figure 7) and pulling the Combi Board outwards as shown in Figure 7A. 3) Uncatch 2 catches C2 (see Figure 7) on the left & right sides of the Cabinet Front (pos 101) and slides the Front Panel assembly out towards the front. - see Service position C Figure 5 1) Slide out the Loader Tray fully and remove 4 screws B (see Figure 5) to detach the Universal Loader (pos 1103) from the Bracket Module Mounting (pos 156). - see Service position B Figure 2A
2-22-2 Dismantling of the Front Panel assembly 1) The Knob Volume (pos 141) can be remove by pulling it out in the direction as shown in Figure 8. 2) The Knob Bass/Knob Treble (pos 140) can be remove by pulling it out in the direction as shown in Figure 9. 3) Loosen 4 screws D (see Figure 12) to remove the Shield Tape Deck and Module Tape Deck (pos 1107). 4) Loosen 2 screws E (see Figure 11) to remove the Bracket Top Support (pos 113). DISMANTLING INSTRUCTIONS 5) Loosen 1 screw F and 4 catches C3 (see Figure 11) to remove the Eeprom Board (pos 1105D). 6) Loosen 4 screws G (see Figure 11) to remove the Bracket Combi (pos 155). 7) Uncatch 4 catches C4 (see Figure 13) to remove the Display Board (pos 1105A) 8) Loosen 4 screws H (see Figure 13) to remove the Top Key Board (pos 1105C). 9) Loosen 5 screws J (see Figure 14) and 2 nuts W (see Figure 10) to remove the Control Board (pos 1105B). Dismantling of the Front Panel assembly Figure 11 Figure 9 Figure 12Figure 15 Figure 13 1) Loosen 3 screws K and 2 catches C5 (see Figure 15) to remove the Tuner Board assembly. 2) Loosen 3 screws L (see Figure 15) to free the Combi Board (pos 1102-1003). 3) Loosen 1 screw M (see Figure 15) to free the Mains Socket Board (pos 1102-1001B).4) Loosen 1 scew N and 2 catches C6 (see Figure 15) to free the Panel Rear (pos 230) by sliding it out towards the rear. Note : Tuner Board assembly and Mains Socket Board can also be remove together with the Panel Rear. Dismantling of the Rear Panel assembly Figure 14 Figure 8 Figure 10
2-32-3 Service position AService position B Service position C DISMANTLING INSTRUCTIONS Repair Hints & Service Positions 1) During repair it is possible to disconnect the Tuner Board and/or CD Module completely unless the fault is sus- pected to be in that area. This will not affect the performance of the rest of the set.Note: The flex cables are very fragile, care should be taken not to damage them during repair. After repair, be very sure that the flex cables are inserted properly into the flex sockets before encasing, otherwise faults may occurs.
3-13-1
Various
other Tests
Activated withACTIONTEST
EEPROM FORMAT
TEST Load default data. Display shows NEW for 1 second.Caution! All presets from the customer will be lost!!
Disconnect
mains cord
LEAVE SERVICE
TEST PROGRAM
S
S
9 to Exit
EEPROM TEST Test patterns will be sent to the EEPROM.
PASS is displayed if the uProcessor read back the test patterns
correctly, otherwise FAIL will be displayed.
Volume, Treble or Bass
Knob
ROTARY
ENCODER TEST
Display shows value for 2 seconds.
Values increases or decreases until Volume Maximum (0dB) or
Volume Minimum (VOL MUTE) is reached.
B
IIDEMO TOGGLE Pressing this button will toggle between DEMO ON and DEMO
OFF. The DEMO status will scroll once across the Display.
Figure 1
Figure 2
LEDs ECO CD
TUNER TAPEAUX
Volume Rotary Off
On
On
On
On
On Off
On
Off
On Off
On
Pattern 1 Pattern 2
Table 2
Y
N
Y N
DIM or RDS
Button pressed?
DIM or RDS
Button pressed?
DISPLAY
TEST
Display shows Figure 1and switch all LEDs on except ECO LED
(see Table 2 Pattern 1)
Display shows Figure 2
and switch alternate LEDs on (see Table 2 Pattern 2)
Y N
9Button pressed?
Y
N
Y N
N
AUX
Button pressed?
AUX
Button pressed?
AUX
Button pressed?
ADC
TEST
Display shows ADC1 Value for ADC1
(Input Line - TpADC1)
Display shows ADC2 Value for ADC2
(Input Line - TpADC2)
Y
N
AUX
Button pressed?
Display shows ADC3 Value
for ADC3
(Input Line - Option)
Y
Y N
9Button pressed?ADC Test is used for checking the
ADC inputs to the microprocessor.
The display shows an ADC value
between 0 and 255 for an input
signal between 0 and 5V.
Display shows ADC4 Value
for ADC4
(Input Line - AmNtc)
CD (on RC)
Button pressed?
Y N
STEP
1
2
3
4
5
6 DISPLAY
MESSAGE
-
-
BUS OK -
-
FOC OK
-
-
BUS ER
-
-
FOC ER ACTION
Indicates the module used.
Version of the MPEG software (nn = Version Number).
Communication test between the Main uP and CD Module.
CD SLEDGE MOTOR is moved in.
CD SLEDGE MOTOR is moved out.
FOCUS SERVO Test.
Press
9 to exit.
OKAY
ERROR
MP3WMA05
MO-Vnn
MO BUS
MO SLD I
MO SLD O MO FOC
Choose level
by pressing on the RC
Q
R
Note : Disc should be available on the tray before entering the Service \
Test Mode.
WMA-MP3-CD MODULETEST
Y
Y
Y N N
N
Display shows
12M
Output at (Display Board)
pin 19 of uP = 2,929.6875Hz Display shows
32K
Output at (Display Board)
pin 19 of uP = 2048Hz
QUARTZ
TEST
TAPE
Button pressed?
TAPE
Button pressed?
9
Button pressed?TUNER
Button pressed?
Disconnect
Mains cord ? Y
Y
N
N
Y
Display Tuner Version ccc
Service frequencies are
copied to the RAM (see Table 1) Tuner works normally except:
PROGRAM button
Service Mode left
TUNERTEST
TUNER
Button pressed? N
PRESET
1
2
3
4
5
6
7
8
9
10
11 Europe
EUR
87.5MHz 108MHz 531kHz
1602kHz 558kHz
1494kHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz
98MHz East Europe
EAS
87.5MHz 108MHz 531kHz
1602kHz 558kHz
1494kHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz 98MHz USA
USA
87.5MHz
108MHz 530kHz
1700kHz
560kHz
1500kHz
98MHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz Oversea
OSE
87.5MHz 108MHz
531/530kHz*
1602/1700kHz*
558/560kHz*
1494/1500kHz* 87.5/98MHz* 87.5MHz
87.5MHz
87.5MHz
98/87.5MHz*
Table 1
East Eur. Extended-band EAS
65.81MHz
108MHz74MHz
87.5MHz 531kHz
1602kHz 558kHz
1494kHz
98MHz
70.01MHz
65.81MHz
Note: * Depending on the selected grid frequency (9 or 10kHz). By holding the ECO and TUNER buttons depressed while switching on the Ma\
ins supply,
one of the undermentioned features will be activated:
- the tuning grid frequency is toggled between 9kHz and 10kHz for the O\
versea (/21) version.
- the extended FM1 (65.81MHz - 74MHz) is toggled on and off for East \
Eur. (/34) version.
To start service test programhold & ECOdepressed while
plugging in the mains cord
Display shows the ROM version S-Vyy
(Main menu) S refers to Service Mode
V refers to Version
yy refers to Software version number of the uProcessor
(counting up from 01 to 99)
SERVICE TEST PROGRAM
Micro 2004_MCM7 & MCM8_Service Test Program_dd wk0410
S
MUTE 125mV UL-ICD03 A2 B1 (ONLY FOR -/37) HP_MUTE FTD IIC_DATA1VOL. 1 -33VREGMEASUREMENTS ARE IN AUX MODE : LEVELS AT MAX VOL S/N AT 500mW NOTE : BASS & TREBLE CONTROL +D +CSHIFT REGISTER SOURCE / VOLUME LEDS +D POWER SUPPLY TREBLE HP DET CONTROL ECO6 AMPLIFIER2.50V +9.1V CDC CONTROL F1x +5V6 NTCREGISTER M62320FP IIC CLK1IIC_DATA1 78dBA 3.2dBNTC +12V_A EEPROM M F1LOW_POWER_CONTROL +5V_CD CONTROL A 85dBA -CMOS +12V_D 250nWb/m ATTN. -25dB28mV500mV CONTROLFOR CLASS G SWITCH BB Rin = 3kHEADROOM (1% THD) WRT TO LEVEL AT MAX VOL 500mV BASSAMP_ON A1 A YY dBA CONTROLINCREDIBLE 1.90V 67dBA FM (67.5 kHz) LEFT/RIGHT LEFT/RIGHT ETF8D +12V_A A1+5V6+12V_A A 2 X 6 OHMS 3.0dB 285mV ZZ dB MP3 D IIC_CLK1+ +12V_A TDA7468 +CD +CL CONTROL+DIIC SHIFT- + TUNERA2 KEY SCANAN7591 CONTROLVOLUMEN C1 HEADPHONE HP_DET39R REGULATOR / STABILISERB1+50V VOL. 2+9.1V REGULATOR 7805 IIC SURROUND AMP_ON IS FILTER +D AM HEADPHONE CHOKE +12V_A F2x ATTN. +9V AUX / CDR IR EYE ADC+5V6 LEDNJM4556AM A1 ETF8 D FOR -/21 ONLY2 X 40W AMP_MUTE3dB & ECO POWERL/R SPEAKER TUNER HP_DET 39R A AMP_MUTE COMBI CONTROLMUTE_HP ETF8 DECODER TMP88CU74YFA 10M MAINS 85dBA 650mV -6dB Track FUSECOMBI AMPLIFIER +C SIMPLE A POWER+G16dB F2x(NOT USED FOR -/37) A2XX mV UL-CD F2 RDS -33V- ATTEN. AM (80% MOD) FUSE FUSE +12V_D 125mV +5V6_ECO SOFTWARE CONTROL -33V -8.5dB POWER MAIN SIGNAL PATH SMPS PWDNIIC_CLK1 +5V6_ECOIIC_DATA1 +C +5V6 D CD_ON 500mV / 1000mV +5V6 VOLTAGE LPS F1 F2 LPCCONTROL500mV HP_OUTF1xSELECTOR HP_OUT FRONTPWDNTRAFO SOURCE SELECTOR INTERFACE +12V_M uP +DFUSE Block Diagram_3139 119 37751_dd wk0409 4-14-1 SET BLOCK DIAGRAM
5-15-1 SET WIRING DIAGRAM 3139 110 38421FCS 1810 LOUDSPEAKER TO BOTTOM PLATE’S RIGHT LUG 8019 2P/180 mm 3139 111 04301 8018 EHT 1703 FCT 1022 STRIP TO BOTTOM PLATE’S L 1 1P/180 mm 3139 110 35791 CHROME STRIPS FCS 1300 1P/220 mm8300 HEADPHONE ESD WIRETO BOTTOM PLATE’S PLATE’S LEFT LUG 3139 110 339011 FCS 1805 1301 LINE OUT## 1006 DIGITAL OUT 8009 15P/120mm/AD 8001 7P/220mm/AD 3139 110 359013139 111 01781 15P/280mm/BD/Fold 8010 3P/180mm8008 FCS 1402 (RDS) 11 1 1 9P/180mm/AD8006 19P/180mm/AD/Fold8007 (1105) COMBI 1P/135 mmFROM TUNER’S METAL STRIP TO AUX’S METAL STRIP 8016 1P/160 mm 8015ON REARCAB 3139 110 34301 1 8P/100mm/AD 1 TO BOTTOM PLATE’S RIGHT LUG (1105) (1106) 8003 19P/98mm/BD8004 3139 111 03871 FCT 1209 3103 308 93622 8P/280mm/AD/Fold 7P/180mm/AD80138005 3139 111 01791FCS 1801 FCT 1600 FCS 1451 FCS 13021 FCT - FFC TOP ENTRY FCS - FFC SIDE ENTRY EHS - EH SIDE ENTRY ETF8 (1105) 1FCS 1803 8P/268mm/AD FCT 1407EHT 1314 EHT 1203 EEPROM 1 AUX-IN N BI - BOARD IN ENTRY FCT 1013 FHT 1020FCT 1304 DISPLAY HP 9P/120mm LEGEND 8001 EHT 1302 1204 ## 1004 SUBWOOFER OUT 9P/220mm TRAFOLPS 8300 TRAFO (1102-1003) 1 BI 8008 UL-CD EHT 1400 1 1 FRONT NOTE : ## - PROVISION 2P/260mm (1101) 1 FCT 1406 FAN EHT 1402 REGULATOR/ (1104) 1 PIN TYPE 1 ## 1001-B BOTTOM PLATE 1 FCS 1401 ## 8301 FRONT CONTROL ESD WIRETO (1105) FRONT MP3 FCT 1014 FCS 1706 1FCT 1120 18002 1307 1 CONTROL 1 EHT 1404 EHT - EH TOP ENTRY 1 ## 8301 1P/220 mm FCS 1405 1 (1107) FCT 1025 FCT 1026 (5001) 1 8200 (1102-1001) SUPPLY (MAINS) ECO6 (1103) 3139 110 341313139 110 35081 3139 111 03881 3140 110 20881 3139 110 348413139 110 36001 1 TOP KEY (CDC KEY) 1 FCT 1018 7P/140mm/AD8012 4P/340mm/BD8011 3139 110 35091 3139 110 34481 FROM RIGHT & BOTTOM 1 LEFT LUG (1102-1002) STABILISER 1001-A 2 X 50W 1 1 FCS 1701 2P/280mm8014 FROM TAPE CHASSIS3103 308 94021 3139 110 35641 3139 110 35241 Wiring Diagram_3139 119 37721_dd wk0409 FROM LEFT CHROME
FRONT BOARD TABLE OF CONTENTS FTD Display Pin Connection ........................................... 6-2 Display part - Component Layout .................................... 6-3 Display part - Chip Layout ............................................... 6-4 Display part - Circuit Diagram Part 1 .............................. 6-5 Display part - Circuit Diagram Part 2 .............................. 6-6 Display part - Variant Table ............................................. 6-7 Top Key part - Layout & Circuit diagram ......................... 6-7 Control part - Component & Chip Layout ........................ 6-8 Control part - Circuit Diagram Part 1 ............................... 6-9 Control part - Circuit Diagram Part 2 ............................. 6-10 Eeprom part - Layout & Circuit diagram ........................ 6-11 Karaoke part - Component & Chip Layout .................... 6-12 Karaoke part - Circuit Diagram ...................................... 6-13 Electrical parts list .......................................................... 6-146-16-1 TECHNICAL REMARKS
6-26-2 FTD DISPLAY PIN CONNECTION P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 1G B A C2G - - a h j , p k b f m g c e r n d -3G - - a h j , p k b f m g c e r n d -4G - - a h j , p k b f m g c e r n d -5G - - a h j , p k b f m g c e r n d -6G - - a h j , p k b f m g c e r n d -7G col - a h j , p k b f m g c e r n d -8G - - a h j , p k b f m g c e r n d -9G col dp a h j , p k b f m g c e r n d -10G a h j , p k b f m g c e r n d -11 G - a h j , p k b f m g c e r n d -12G - -13G - S1 S2 S3 A1 B1 B2 B3 B4 B5 B6 B7 C1 C1 C2C2 C3C3 C4C4 C5C5 C6C6 C7C7 (13G) (1G) (1G) B1 S1 A BC BC CBh fjkb r g d a m epnc AA B2B3B4B5B6B7 A1C1C2C3C4C5C5C6C6C7S2 S3 (12G)(2G - 11G) 1G2G3G4G5G6G 13G 7G8G colcolcolcol dpdp 9G10G11G12G
6-36-3 DISPLAY BOARD - COMPONENT LAYOUT This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list. 3139 113 3529 pt4 dd wk0409
This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list. 3139 113 3529 pt4 dd wk0409 DISPLAY BOARD - CHIP LAYOUT 6-46-4