Valentin Solo type User manual

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
English
Service manual
Thermal Transfer Printer
Solo type
79.25.025 •12 December 1997
Carl Valentin GmbH •Neckarstraße 78-80 & 94 •78056 VS-Schwenningen
[email protected] •http://www.valentin-carl.de

Table of contents
I
Table of Contents
1. Block circuits ......................................................................................................................................1
1.1. Block circuit baseboard (CPU & network)....................................................................................1
1.2. Block circuit option board.............................................................................................................2
1.3. Wiring diagram .............................................................................................................................3
2. Electronics ..........................................................................................................................................4
2.1. Check-points ................................................................................................................................4
2.1.1. Voltage supply baseboard.................................................................................................4
2.1.2. Voltage supply option board .............................................................................................4
2.1.3. Photocells..........................................................................................................................5
2.1.4. Clock-signals.....................................................................................................................8
2.1.5. Strobe-signals...................................................................................................................9
2.1.6. Motor signals...................................................................................................................12
2.1.7. External control inputs / outputs (option board)..............................................................12
2.2. Component parts of baseboard..................................................................................................13
2.3. Component parts of option board...............................................................................................14
2.4. Changing of fuses ......................................................................................................................15
2.4.1. Primary fuse....................................................................................................................15
2.4.2. Secondary fuse...............................................................................................................15
2.5. Service monitor ..........................................................................................................................16
2.5.1. Valuation of label parameters .........................................................................................16
2.5.2. Error message: label error ..............................................................................................17
2.5.3. Error elimination..............................................................................................................18
2.5.4. Monitor ............................................................................................................................18
3. Mechanics .........................................................................................................................................19
3.1. Exchange of print head ..............................................................................................................19
3.2. Adjustment of print head ............................................................................................................20
3.2.1. Pressure..........................................................................................................................20
3.2.2. Print quality .....................................................................................................................20
3.3. Cleaning of print head................................................................................................................21
3.4. Exchange of pressure roll...........................................................................................................22
3.5. Exchange of ribbon unwinding roll .............................................................................................23
3.6. To oil and lubricate.....................................................................................................................24
3.7. Option dispenser ........................................................................................................................25
3.7.1. Exchange dispenser........................................................................................................25
3.8. Option cutter...............................................................................................................................26
3.8.1. Cleaning/ servicing/changing of cutter............................................................................26
3.9. Options winder PR 25 / PR 26 ...................................................................................................27
3.9.1. Exchange motor..............................................................................................................27
3.10. Option memory-card.................................................................................................................28
3.10.1. Mounting of MC plug-in unit..........................................................................................28
4. Possible sources of error ................................................................................................................29
4.1. Error messages on the display...................................................................................................29
4.2. General errors ............................................................................................................................32

Service manual
1
1. Block circuits
1.1. Block circuit baseboard (CPU & network)
The corresponding plan is available on demand.

Service manual
2
1.2. Block circuit option board
The corresponding plan is available on demand.

Service manual
3
1.3. Wiring diagram
The corresponding plan is available on demand.

Service manual
4
2. Electronics
2.1. Check-points
2.1.1. Voltage supply baseboard
Check-point description value
JP6,7 PIN 1a,c VCC 5V
JP16 PIN 1,2 VDD 5V
JP6,7 PIN 32a , c GND 0V
JP24 PIN 1-3 VH 18V (printhead solo 51)
21V (printhead solo 80)
JP24 PIN 4-6 GND 0V
JP30 PIN 1 12V 12V
JP25 PIN 1 VM ~35V
R47 upper PIN VG ~35V
R47 lower PIN VR 7,2V
2.1.2. Voltage supply option board
Check-point description value
JP2,3 PIN 1a, c VCC 5V
JP2,3 PIN 32a, c GND 0V
JP2,3 PIN 2c V OUT 5V
JP2,3 PIN 3c V Batt 0V

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2.1.3. Photocells
Label photocell: Transmission
JP2: PIN 1 VSS ~1,2V
PIN 2 INP
PIN 3 INP }see below
PIN 4 GND 0V
Depending on the transparency of the label res. backing paper the voltage at the input of the
AD-converter is changing.
In sketch 1 a typical voltage wave form at "INP" is shown ( measurable at U6 PIN3 too).
In case the adjusted value of the sending current of the photocell is not sufficient, e.g. when
using extremely thick or thin backing paper, it can be adjusted by changing P1.
Rotation to the right adjustment for thick backing paper
Rotation to the left adjustment for thin backing paper
The "INP"-level can be displayed in the menu item "Parameter of the label photocell" under
"Transmission photocell" (see chapter "2.5.4. Monitor").
measurement of photocell

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label photocell: reflection
JP3: PIN 1 VCC 5V
PIN 2 INP see sketch
PIN 3 VSS ~ 2V
PIN 4 GND 0V
The voltage wave form at "INP" is similar to the one described under A ( measurable at U6 PIN4 too).
It has to be considered that the marking for the reflection photocell must be in a distance of 32,5 mm
to the interior rim, so that the photocell recognizes the marking.
The "INP"-level can be displayed in the menu item "Parameter of the photocell" under "Reflection
photocell" (chapt. "2.5.4. Monitor"). The marking should have a size of at least 7 mm x 3 mm or bigger.

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Dispensing photocell
JP4: PIN 1 VCC 5 V
PIN 2 INP see sketch
PIN 3 VSS ~ 1,2 V
PIN 4 GND 0V
The typical voltage wave form at "INP" (measurable at U6 PIN 5 too) is shown in sketch 3.
As standard a level of 2,6 V is adjusted. If a label is under the dispensing photocell, the level at "INP"
must be higher than 2,6 V. If the label is being removed, the voltage must lower under 2,6 V.
In some cases it is necessary to change the level of the dispensing photocell. This can be done in the
menu "Printer initialization - LS-Dispenser level".
The "INP"-level can be displayed in the menu item "Parameter of the label photocell" under
"Dispensing photocell" (see chapter "2.5.4. Monitor").

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Ribbon check
JP1: PIN 1 VCC 5 V
PIN 2 INP High resp. Low
PIN 3 VSS ~ 1,2 V
PIN 4 GND 0V
The photocell "ribbon-check" is checking if there is ribbon for printing. If ribbon has been properly
loaded the photocell is sending a "Low"-signal; if there is no ribbon a "High"-signal.
The "INP"-level can be displayed in the menu item "Parameter of the photocell" under "transfer ribbon
photocell" (Hi or Lo)
(see chapter "2.5.4. Monitor").
2.1.4. Clock-signals
check point description value
U12 PIN 78 CLK CPU
PIN 79 CLK CPU 20MHz
U5 PIN 6 RESET 0V
PIN 8 RESET\ ~ 5V
U5 PIN 4 NMI 0V

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2.1.5. Strobe-signals
Print head KMT-51 (Kyocera)
check point description value
U24: PIN 14 Strobe1
5V
t
PIN 12 Latch1
5V
t
PIN 16 Strobe2
5V
t
PIN 5 Latch2
5V
t
PIN 9 Strobe3
5V
t
PIN 7 Latch3
5V
t

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Print head FP 80-8X (Mitsubishi)
check point description value
U24: PIN 14 Strobe1\
PIN 16 Strobe2\
5V
t
PIN 18 Latch\
5V
t
PIN 9 GA\
5V
t
PIN 12 GB\
5V
t
PIN 5 GC\
5V
t
PIN 7 GD\
5V
t
PIN 3 GE\
5V
t

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Print head KHT-80-8MPU1-VA (Kyocera)
check point description value
U24: PIN 14 Strobe1\
5V
t
PIN 16 Strobe2\
5V
t
PIN 18 Latch\
5V
t
PIN 9 CONT1\
5V
t
PIN 12 CONT2\
5V
t
PIN 5 CONT3\
5V
t
PIN 7 CONT4\
5V
t
PIN 3 CONT5\
5V
t

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2.1.6. Motor signals
check point (CPU) description value
U15 PIN15 VOR A
5V
t
Motor ein Motor aus
PIN12 VOR B
5V
t
PIN9 FR VOR
5V
t
"VOR A" and "VOR B" are two rectangular signals by 90°displaced phases.
2.1.7. External control inputs / outputs (option
board)
check point description value
4 x IN ext. input impulse
12-24V
U6 PIN 2 INPUT 1
PIN 4 INPUT 2
PIN 6 INPUT 3
PIN 8 INPUT 4
4 x OUT
U3 PIN2 OUTPUT 1
PIN3 OUTPUT 2
PIN6 OUTPUT 3
PIN7 OUTPUT 4

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2.2. Component parts of baseboard
The corresponding plan is available on demand.

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14
2.3. Component parts of option board
The corresponding plan is available on demand.

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15
2.4. Changing of fuses
2.4.1. Primary fuse
solo rear panel:
The primary fuse is in the power line filter block and
accessible from outside.
After plugging out, the cover can be removed. There
behind you will find the fuse-switch, which has to be
drawn near to change the fuse.
F: fine-wire fuse T1,0A
power line filter block
F
2.4.2. Secondary fuse
Attention: The machine should be opened by competent staff only.
Pug out before removing the left cover.
After removing the left cover the base plate is visible, whereon you will find two secondary fuses.
F1: fine-wire fuseT 1,0 A fuse for 5 V and 12 V supply (CPU)
F2: fine-wire fuseT 6,3 A fuse for motor voltage (35 V) and burning voltage (18 V res. 21 V) and
12 V supply (fan)
F1 F2

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2.5. Service monitor
2.5.1. Valuation of label parameters
In function menu "Parameter of label photocell" you will find the service monitor, by which the
photocells can be checked res. adjusted.
When measuring the labels the values will be displayed in the first line, thereby the following
measured voltages are shown:
A: absolute minimum (measured on backing-paper)
B: smallest maximum (measured on label)
C: upper switching level
D: lower switching level
E: highest voltage measured (mostly ~5 V)
The sketch illustrates the voltage wave form of the label photocell while measuring the labels.
The difference between "A" and "B" should be at least 1,5 V.