Philips 900 Series Service Manual

DIGITAL COMPACT CASSETTE RECORDER
(@ 6 THIRD GENERATION DCC (reference set: DCC951)
Service
Service
Service
COMPACT CASSETTE
CONTENTS PAGE
IMtTOUUCHONS 24.2 Sante ALO ea PE EY HE ee ee 5
UoGENERAL 0.5.2 sateen ete a tetim analy Sinaey Bete aye BRD Bas 9
1.1 DCC recorders third generation. .................0... 9
1.2 Block diagram of the DCC Digital Unit Module (DDU) ... 12
1.3 Block diagram DCC951_ www ee eee 13
2 TAPE DRIVE PART MECHANICAL .................... 17
2c:t "Head support ob ad ode od bn be ERAS eG oe 17
2.2 Command gearwheel.............. 0200002 eee 19
2.3 Azimuth adjustment .......... 0.00.00. 2022 eee 21
2.4 Write current adjustment. ....................005. 23
3 TAPE DRIVE PART ELECTRICAL .................... 24
3.1 Read/Write board ........ 0.0.0.0... cee ee 24
3:2 Digital'board: 2... eee Re EW ae ee ee 35
3.3 Tape drive control board ............... 000000085 52
4 SINTEREAGE® sosalsn cae g Se adade 480445404428 Los 69
4.1 Power Supply ........... 0.2.0.0. 02: e eee eee 69
4:2. hf QurbD Gard \ 03 Phy eae Pe ete ee ees 4 es 69
4.3 Control & Display Board .....................05. 69
5 uP SERVICE MODE ............. 00.00. es 74
5.1 Start service mode .......... 0.0... 0. eee eee 74
5.2 Switches Test Mode ............ 0... 000.00 ee 74
5.3 DCC Digital Unit Test Mode ...................0.. 74
5.4 The User Test Mode ............. 2.0.00 00 0. eee 78
6 ABBREVIATIONS ...........0 0.0.00 ee ee 80
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