TCM-500DV
2
TABLE OF CONTENTS
1.
GENERAL
...................................................................
2
2.
SERVICING NOTES
................................................
2
3.
DISASSEMBLY
.........................................................
3
3-1. Cabinet Rear Assy (500), Lid Assy (500),
Cassette ..................................................................
3
3-2. MAIN Board ..........................................................
4
3-3. Mechanism Deck ...................................................
4
3-4. Head, Magnetic (Rec/PB/Erase) (HRPE901),
Belt (AR), Capstan/Reel (M601) ..........................
5
3-5. LED Board .............................................................
5
3-6. SP Board ................................................................
6
4.
MECHANICAL ADJUSTMENTS
.......................
7
5.
ELECTRICAL ADJUSTMENTS
.........................
7
6.
DIAGRAMS
6-1. Block Diagrams ......................................................
8
6-2. Printed Wiring Board –MAIN Board (Side A) – ...
9
6-3. Printed Wiring Board –MAIN Board (Side B) – ... 10
6-4. Schematic Diagram –MAIN Board (1/2) – ........... 11
6-5. Schematic Diagram –MAIN Board (2/2) – ........... 12
6-6. Printed Wiring Board –LED, SP Board – .............. 13
6-7. IC BLOCK DIAGRAMS ....................................... 14
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
SECTION 1
GENERAL
REC TIME/PLAY MODE
VOR
TAPE COUNTER
z
REC
x
STOP
REW/REVIEW
FF/CUE
VOL
Flat Mic
Microphone affleurant
PAUSE
.
nN
PLAY
n
DIR
N
REC, BATT,
E
lamps
Témoins REC, BATT,
E
MIC (PLUG IN POWER)
EAR
SPEED CONTROL
SECTION 2
SERVICING NOTES
In this set, the S102 (POWER) detects REC/PLAYBACK on.
It is mounted on the MAIN board, and therefore the REC/PLAYBACK on cannot be detected with the MAIN board removed.
When making an operation check and voltage check of mechnical deck with the MAIN board removed, fix the S102 at turn on.
S102
ON
*
–MAIN BOARD (side A) –
–MAIN BOARD (side B) –
SL101
7.
EXPLODED VIEWS
................................................ 15
7-1. Cabinet Section ...................................................... 15
7-2. Cassette Holder Section ........................................ 16
7-3. Mechanism Deck Section-1 (MT-500-175) .......... 17
7-4. Mechanism Deck Section-2 (MT-500-175) .......... 18
8.
ELECTRICAL PARTS LIST
............................... 19
Also, soldering the lands SL101 bridge makes S102 to turn on.
This section is extracted from
instruction manual.
