Caledonian Audio
Phono Classique Assembly Manual
5
5
IV.
Integrated Power Supply PCB Components ................................... 43
V.
Wiring Diagram – UK / Europe (230VAC) ....................................... 45
VI.
Wiring Diagram – US (115VAC) ...................................................... 46
VII.
Schematics - Phono Amp Circuit ..................................................... 47
VIII. Schematics – Power Supply Circuit ................................................ 48
Figure 1 Integrated power supply PCB .......................................................... 11
Figure 2 Resistors on the power supply PCB ................................................ 12
Figure 3 Power supply PCB with resistors, capacitors and diodes installed. 13
Figure 4 - Supplied heatsink .......................................................................... 14
Figure 5 - Power supply PCB with the common mode choke installed ......... 14
Figure 6 - Power supply PCB with heatsink attached to the voltage regulator
................................................................................................................ 15
Figure 7 - Another view of the completed power supply PCB ....................... 15
Figure 8 - Phono amp PCB with valve sockets installed. Note that valve
sockets might differ to the ones supplied in your kit ............................... 17
Figure 9 - Phono amp PCB with all resistors installed ................................... 18
Figure 10 - Phono amp with capacitors installed ........................................... 19
Figure 11 - mounting plate - bottom view ...................................................... 20
Figure 12 - Placement of all parts and PCBs on the mounting plate ............. 21
Figure 13 - IEC socket mounted .................................................................... 22
Figure 14 - IEC socket mounted - front view - note the orientation ............... 22
Figure 15 - RCA connectors installed - viewed from the top ......................... 23
Figure 16 - Main power switch secured to the mounting plate ...................... 24
Figure 17 - PCBs mounted using the standoffs ............................................. 24
Figure 18 - The orientations of the PCBs ...................................................... 25
Figure 19 - Transformers mounted onto the plate ......................................... 26
Figure 20 - Heater transformer ...................................................................... 26
Figure 21 - Main transformer ......................................................................... 27
Figure 22 - Ground safety earth from IEC socket wired to the chassis and
secured by a shakeproof washer and insert lock nut ............................. 28
Figure 23 - Power cables connecting the live and neutral terminals on the IEC
socket to the main power switch ............................................................. 29
Figure 24 - Two pairs of cables connecting the output from the power switch,
to the two transformers ........................................................................... 30
Figure 25 - Primary windings of Transformer 2 connected to the mains AC
voltage from the switch. Please note the wiring for 230VAC system. .... 31
Figure 26 - Primary windings of Transformer 1 connected to the mains AC
voltage from the switch ........................................................................... 31
Figure 27 - Image showing B+ connection between the Integrated Power
Supply PCB and the phono PCB ............................................................ 32
Figure 28 - Image showing the terminals for the valve heaters (circled in red) -
please note the polarities of these terminals do not matter .................... 33
Figure 29 - Powering the valve heaters from the integrated power supply PCB
................................................................................................................ 34
Figure 30 - Valve heaters connected in parallel to the power supply PCB .... 34
Figure 31 - Wiring diagram focusing on the audio level lines and star earth
connection. Note that screen cables are used and only one end of the
screen is connected to ground. .............................................................. 35
Summary of Contents for Phono Classique
Page 1: ...Assembly Manual Phono Classique Version 1 0 Caledonian Audio...
Page 6: ...6 Figure 32 Audio level cables and star earth 36...
Page 22: ...22 Figure 13 IEC socket mounted Figure 14 IEC socket mounted front view note the orientation...
Page 26: ...26 Figure 19 Transformers mounted onto the plate Figure 20 Heater transformer...
Page 45: ...Caledonian Audio Phono Classique Assembly Manual 45 45 V Wiring Diagram UK Europe 230VAC...
Page 46: ...46 VI Wiring Diagram US 115VAC...
Page 47: ...Caledonian Audio Phono Classique Assembly Manual 47 47 VII Schematics Phono Amp Circuit...
